diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Module/Build.pm | 1118 | ||||
| -rw-r--r-- | lib/Module/Build/API.pod | 2124 | ||||
| -rw-r--r-- | lib/Module/Build/Authoring.pod | 326 | ||||
| -rw-r--r-- | lib/Module/Build/Base.pm | 5688 | ||||
| -rw-r--r-- | lib/Module/Build/Bundling.pod | 147 | ||||
| -rw-r--r-- | lib/Module/Build/Compat.pm | 632 | ||||
| -rw-r--r-- | lib/Module/Build/Config.pm | 59 | ||||
| -rw-r--r-- | lib/Module/Build/Cookbook.pm | 529 | ||||
| -rw-r--r-- | lib/Module/Build/Dumper.pm | 19 | ||||
| -rw-r--r-- | lib/Module/Build/Notes.pm | 332 | ||||
| -rw-r--r-- | lib/Module/Build/PPMMaker.pm | 186 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/Default.pm | 32 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/MacOS.pm | 151 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/Unix.pm | 72 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/VMS.pm | 522 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/VOS.pm | 33 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/Windows.pm | 318 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/aix.pm | 39 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/cygwin.pm | 54 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/darwin.pm | 39 | ||||
| -rw-r--r-- | lib/Module/Build/Platform/os2.pm | 48 | ||||
| -rw-r--r-- | lib/Module/Build/PodParser.pm | 63 |
22 files changed, 12531 insertions, 0 deletions
diff --git a/lib/Module/Build.pm b/lib/Module/Build.pm new file mode 100644 index 0000000..5bb815a --- /dev/null +++ b/lib/Module/Build.pm @@ -0,0 +1,1118 @@ +package Module::Build; + +use if $] >= 5.019, 'deprecate'; + +# This module doesn't do much of anything itself, it inherits from the +# modules that do the real work. The only real thing it has to do is +# figure out which OS-specific module to pull in. Many of the +# OS-specific modules don't do anything either - most of the work is +# done in Module::Build::Base. + +use 5.006; +use strict; +use warnings; +use File::Spec (); +use File::Path (); +use File::Basename (); +use Perl::OSType (); + +use Module::Build::Base; + +our @ISA = qw(Module::Build::Base); +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; + +# Inserts the given module into the @ISA hierarchy between +# Module::Build and its immediate parent +sub _interpose_module { + my ($self, $mod) = @_; + eval "use $mod"; + die $@ if $@; + + no strict 'refs'; + my $top_class = $mod; + while (@{"${top_class}::ISA"}) { + last if ${"${top_class}::ISA"}[0] eq $ISA[0]; + $top_class = ${"${top_class}::ISA"}[0]; + } + + @{"${top_class}::ISA"} = @ISA; + @ISA = ($mod); +} + +if (grep {-e File::Spec->catfile($_, qw(Module Build Platform), $^O) . '.pm'} @INC) { + __PACKAGE__->_interpose_module("Module::Build::Platform::$^O"); + +} elsif ( my $ostype = os_type() ) { + __PACKAGE__->_interpose_module("Module::Build::Platform::$ostype"); + +} else { + warn "Unknown OS type '$^O' - using default settings\n"; +} + +sub os_type { return Perl::OSType::os_type() } + +sub is_vmsish { return Perl::OSType::is_os_type('VMS') } +sub is_windowsish { return Perl::OSType::is_os_type('Windows') } +sub is_unixish { return Perl::OSType::is_os_type('Unix') } + +1; + +__END__ + +=for :stopwords +bindoc binhtml destdir distcheck distclean distdir distmeta distsign disttest +fakeinstall html installdirs installsitebin installsitescript installvendorbin +installvendorscript libdoc libhtml pardist ppd ppmdist realclean skipcheck +testall testcover testdb testpod testpodcoverage versioninstall + +=head1 NAME + +Module::Build - Build and install Perl modules + +=head1 SYNOPSIS + +Standard process for building & installing modules: + + perl Build.PL + ./Build + ./Build test + ./Build install + +Or, if you're on a platform (like DOS or Windows) that doesn't require +the "./" notation, you can do this: + + perl Build.PL + Build + Build test + Build install + + +=head1 DESCRIPTION + +C<Module::Build> is a system for building, testing, and installing +Perl modules. It is meant to be an alternative to +C<ExtUtils::MakeMaker>. Developers may alter the behavior of the +module through subclassing in a much more straightforward way than +with C<MakeMaker>. It also does not require a C<make> on your system +- most of the C<Module::Build> code is pure-perl and written in a very +cross-platform way. + +See L<"MOTIVATIONS"> for more comparisons between C<ExtUtils::MakeMaker> +and C<Module::Build>. + +To install C<Module::Build>, and any other module that uses +C<Module::Build> for its installation process, do the following: + + perl Build.PL # 'Build.PL' script creates the 'Build' script + ./Build # Need ./ to ensure we're using this "Build" script + ./Build test # and not another one that happens to be in the PATH + ./Build install + +This illustrates initial configuration and the running of three +'actions'. In this case the actions run are 'build' (the default +action), 'test', and 'install'. Other actions defined so far include: + + build manifest + clean manifest_skip + code manpages + config_data pardist + diff ppd + dist ppmdist + distcheck prereq_data + distclean prereq_report + distdir pure_install + distinstall realclean + distmeta retest + distsign skipcheck + disttest test + docs testall + fakeinstall testcover + help testdb + html testpod + install testpodcoverage + installdeps versioninstall + +You can run the 'help' action for a complete list of actions. + + +=head1 GUIDE TO DOCUMENTATION + +The documentation for C<Module::Build> is broken up into sections: + +=over + +=item General Usage (L<Module::Build>) + +This is the document you are currently reading. It describes basic +usage and background information. Its main purpose is to assist the +user who wants to learn how to invoke and control C<Module::Build> +scripts at the command line. + +=item Authoring Reference (L<Module::Build::Authoring>) + +This document describes the structure and organization of +C<Module::Build>, and the relevant concepts needed by authors who are +writing F<Build.PL> scripts for a distribution or controlling +C<Module::Build> processes programmatically. + +=item API Reference (L<Module::Build::API>) + +This is a reference to the C<Module::Build> API. + +=item Cookbook (L<Module::Build::Cookbook>) + +This document demonstrates how to accomplish many common tasks. It +covers general command line usage and authoring of F<Build.PL> +scripts. Includes working examples. + +=back + + +=head1 ACTIONS + +There are some general principles at work here. First, each task when +building a module is called an "action". These actions are listed +above; they correspond to the building, testing, installing, +packaging, etc., tasks. + +Second, arguments are processed in a very systematic way. Arguments +are always key=value pairs. They may be specified at C<perl Build.PL> +time (i.e. C<perl Build.PL destdir=/my/secret/place>), in which case +their values last for the lifetime of the C<Build> script. They may +also be specified when executing a particular action (i.e. +C<Build test verbose=1>), in which case their values last only for the +lifetime of that command. Per-action command line parameters take +precedence over parameters specified at C<perl Build.PL> time. + +The build process also relies heavily on the C<Config.pm> module. +If the user wishes to override any of the +values in C<Config.pm>, she may specify them like so: + + perl Build.PL --config cc=gcc --config ld=gcc + +The following build actions are provided by default. + +=over 4 + +=item build + +[version 0.01] + +If you run the C<Build> script without any arguments, it runs the +C<build> action, which in turn runs the C<code> and C<docs> actions. + +This is analogous to the C<MakeMaker> I<make all> target. + +=item clean + +[version 0.01] + +This action will clean up any files that the build process may have +created, including the C<blib/> directory (but not including the +C<_build/> directory and the C<Build> script itself). + +=item code + +[version 0.20] + +This action builds your code base. + +By default it just creates a C<blib/> directory and copies any C<.pm> +and C<.pod> files from your C<lib/> directory into the C<blib/> +directory. It also compiles any C<.xs> files from C<lib/> and places +them in C<blib/>. Of course, you need a working C compiler (probably +the same one that built perl itself) for the compilation to work +properly. + +The C<code> action also runs any C<.PL> files in your F<lib/> +directory. Typically these create other files, named the same but +without the C<.PL> ending. For example, a file F<lib/Foo/Bar.pm.PL> +could create the file F<lib/Foo/Bar.pm>. The C<.PL> files are +processed first, so any C<.pm> files (or other kinds that we deal +with) will get copied correctly. + +=item config_data + +[version 0.26] + +... + +=item diff + +[version 0.14] + +This action will compare the files about to be installed with their +installed counterparts. For .pm and .pod files, a diff will be shown +(this currently requires a 'diff' program to be in your PATH). For +other files like compiled binary files, we simply report whether they +differ. + +A C<flags> parameter may be passed to the action, which will be passed +to the 'diff' program. Consult your 'diff' documentation for the +parameters it will accept - a good one is C<-u>: + + ./Build diff flags=-u + +=item dist + +[version 0.02] + +This action is helpful for module authors who want to package up their +module for source distribution through a medium like CPAN. It will create a +tarball of the files listed in F<MANIFEST> and compress the tarball using +GZIP compression. + +By default, this action will use the C<Archive::Tar> module. However, you can +force it to use binary "tar" and "gzip" executables by supplying an explicit +C<tar> (and optional C<gzip>) parameter: + + ./Build dist --tar C:\path\to\tar.exe --gzip C:\path\to\zip.exe + +=item distcheck + +[version 0.05] + +Reports which files are in the build directory but not in the +F<MANIFEST> file, and vice versa. (See L<manifest> for details.) + +=item distclean + +[version 0.05] + +Performs the 'realclean' action and then the 'distcheck' action. + +=item distdir + +[version 0.05] + +Creates a "distribution directory" named C<$dist_name-$dist_version> +(if that directory already exists, it will be removed first), then +copies all the files listed in the F<MANIFEST> file to that directory. +This directory is what the distribution tarball is created from. + +=item distinstall + +[version 0.37] + +Performs the 'distdir' action, then switches into that directory and runs a +C<perl Build.PL>, followed by the 'build' and 'install' actions in that +directory. Use PERL_MB_OPT or F<.modulebuildrc> to set options that should be +applied during subprocesses + +=item distmeta + +[version 0.21] + +Creates the F<META.yml> file that describes the distribution. + +F<META.yml> is a file containing various bits of I<metadata> about the +distribution. The metadata includes the distribution name, version, +abstract, prerequisites, license, and various other data about the +distribution. This file is created as F<META.yml> in a simplified YAML format. + +F<META.yml> file must also be listed in F<MANIFEST> - if it's not, a +warning will be issued. + +The current version of the F<META.yml> specification can be found +on CPAN as L<CPAN::Meta::Spec>. + +=item distsign + +[version 0.16] + +Uses C<Module::Signature> to create a SIGNATURE file for your +distribution, and adds the SIGNATURE file to the distribution's +MANIFEST. + +=item disttest + +[version 0.05] + +Performs the 'distdir' action, then switches into that directory and runs a +C<perl Build.PL>, followed by the 'build' and 'test' actions in that directory. +Use PERL_MB_OPT or F<.modulebuildrc> to set options that should be applied +during subprocesses + + +=item docs + +[version 0.20] + +This will generate documentation (e.g. Unix man pages and HTML +documents) for any installable items under B<blib/> that +contain POD. If there are no C<bindoc> or C<libdoc> installation +targets defined (as will be the case on systems that don't support +Unix manpages) no action is taken for manpages. If there are no +C<binhtml> or C<libhtml> installation targets defined no action is +taken for HTML documents. + +=item fakeinstall + +[version 0.02] + +This is just like the C<install> action, but it won't actually do +anything, it will just report what it I<would> have done if you had +actually run the C<install> action. + +=item help + +[version 0.03] + +This action will simply print out a message that is meant to help you +use the build process. It will show you a list of available build +actions too. + +With an optional argument specifying an action name (e.g. C<Build help +test>), the 'help' action will show you any POD documentation it can +find for that action. + +=item html + +[version 0.26] + +This will generate HTML documentation for any binary or library files +under B<blib/> that contain POD. The HTML documentation will only be +installed if the install paths can be determined from values in +C<Config.pm>. You can also supply or override install paths on the +command line by specifying C<install_path> values for the C<binhtml> +and/or C<libhtml> installation targets. + +With an optional C<html_links> argument set to a false value, you can +skip the search for other documentation to link to, because that can +waste a lot of time if there aren't any links to generate anyway: + + ./Build html --html_links 0 + +=item install + +[version 0.01] + +This action will use C<ExtUtils::Install> to install the files from +C<blib/> into the system. See L<"INSTALL PATHS"> +for details about how Module::Build determines where to install +things, and how to influence this process. + +If you want the installation process to look around in C<@INC> for +other versions of the stuff you're installing and try to delete it, +you can use the C<uninst> parameter, which tells C<ExtUtils::Install> to +do so: + + ./Build install uninst=1 + +This can be a good idea, as it helps prevent multiple versions of a +module from being present on your system, which can be a confusing +situation indeed. + +=item installdeps + +[version 0.36] + +This action will use the C<cpan_client> parameter as a command to install +missing prerequisites. You will be prompted whether to install +optional dependencies. + +The C<cpan_client> option defaults to 'cpan' but can be set as an option or in +F<.modulebuildrc>. It must be a shell command that takes a list of modules to +install as arguments (e.g. 'cpanp -i' for CPANPLUS). If the program part is a +relative path (e.g. 'cpan' or 'cpanp'), it will be located relative to the perl +program that executed Build.PL. + + /opt/perl/5.8.9/bin/perl Build.PL + ./Build installdeps --cpan_client 'cpanp -i' + # installs to 5.8.9 + +=item manifest + +[version 0.05] + +This is an action intended for use by module authors, not people +installing modules. It will bring the F<MANIFEST> up to date with the +files currently present in the distribution. You may use a +F<MANIFEST.SKIP> file to exclude certain files or directories from +inclusion in the F<MANIFEST>. F<MANIFEST.SKIP> should contain a bunch +of regular expressions, one per line. If a file in the distribution +directory matches any of the regular expressions, it won't be included +in the F<MANIFEST>. + +The following is a reasonable F<MANIFEST.SKIP> starting point, you can +add your own stuff to it: + + ^_build + ^Build$ + ^blib + ~$ + \.bak$ + ^MANIFEST\.SKIP$ + CVS + +See the L<distcheck> and L<skipcheck> actions if you want to find out +what the C<manifest> action would do, without actually doing anything. + +=item manifest_skip + +[version 0.3608] + +This is an action intended for use by module authors, not people +installing modules. It will generate a boilerplate MANIFEST.SKIP file +if one does not already exist. + +=item manpages + +[version 0.28] + +This will generate man pages for any binary or library files under +B<blib/> that contain POD. The man pages will only be installed if the +install paths can be determined from values in C<Config.pm>. You can +also supply or override install paths by specifying there values on +the command line with the C<bindoc> and C<libdoc> installation +targets. + +=item pardist + +[version 0.2806] + +Generates a PAR binary distribution for use with L<PAR> or L<PAR::Dist>. + +It requires that the PAR::Dist module (version 0.17 and up) is +installed on your system. + +=item ppd + +[version 0.20] + +Build a PPD file for your distribution. + +This action takes an optional argument C<codebase> which is used in +the generated PPD file to specify the (usually relative) URL of the +distribution. By default, this value is the distribution name without +any path information. + +Example: + + ./Build ppd --codebase "MSWin32-x86-multi-thread/Module-Build-0.21.tar.gz" + +=item ppmdist + +[version 0.23] + +Generates a PPM binary distribution and a PPD description file. This +action also invokes the C<ppd> action, so it can accept the same +C<codebase> argument described under that action. + +This uses the same mechanism as the C<dist> action to tar & zip its +output, so you can supply C<tar> and/or C<gzip> parameters to affect +the result. + +=item prereq_data + +[version 0.32] + +This action prints out a Perl data structure of all prerequisites and the versions +required. The output can be loaded again using C<eval()>. This can be useful for +external tools that wish to query a Build script for prerequisites. + +=item prereq_report + +[version 0.28] + +This action prints out a list of all prerequisites, the versions required, and +the versions actually installed. This can be useful for reviewing the +configuration of your system prior to a build, or when compiling data to send +for a bug report. + +=item pure_install + +[version 0.28] + +This action is identical to the C<install> action. In the future, +though, when C<install> starts writing to the file +F<$(INSTALLARCHLIB)/perllocal.pod>, C<pure_install> won't, and that +will be the only difference between them. + +=item realclean + +[version 0.01] + +This action is just like the C<clean> action, but also removes the +C<_build> directory and the C<Build> script. If you run the +C<realclean> action, you are essentially starting over, so you will +have to re-create the C<Build> script again. + +=item retest + +[version 0.2806] + +This is just like the C<test> action, but doesn't actually build the +distribution first, and doesn't add F<blib/> to the load path, and +therefore will test against a I<previously> installed version of the +distribution. This can be used to verify that a certain installed +distribution still works, or to see whether newer versions of a +distribution still pass the old regression tests, and so on. + +=item skipcheck + +[version 0.05] + +Reports which files are skipped due to the entries in the +F<MANIFEST.SKIP> file (See L<manifest> for details) + +=item test + +[version 0.01] + +This will use C<Test::Harness> or C<TAP::Harness> to run any regression +tests and report their results. Tests can be defined in the standard +places: a file called C<test.pl> in the top-level directory, or several +files ending with C<.t> in a C<t/> directory. + +If you want tests to be 'verbose', i.e. show details of test execution +rather than just summary information, pass the argument C<verbose=1>. + +If you want to run tests under the perl debugger, pass the argument +C<debugger=1>. + +If you want to have Module::Build find test files with different file +name extensions, pass the C<test_file_exts> argument with an array +of extensions, such as C<[qw( .t .s .z )]>. + +If you want test to be run by C<TAP::Harness>, rather than C<Test::Harness>, +pass the argument C<tap_harness_args> as an array reference of arguments to +pass to the TAP::Harness constructor. + +In addition, if a file called C<visual.pl> exists in the top-level +directory, this file will be executed as a Perl script and its output +will be shown to the user. This is a good place to put speed tests or +other tests that don't use the C<Test::Harness> format for output. + +To override the choice of tests to run, you may pass a C<test_files> +argument whose value is a whitespace-separated list of test scripts to +run. This is especially useful in development, when you only want to +run a single test to see whether you've squashed a certain bug yet: + + ./Build test --test_files t/something_failing.t + +You may also pass several C<test_files> arguments separately: + + ./Build test --test_files t/one.t --test_files t/two.t + +or use a C<glob()>-style pattern: + + ./Build test --test_files 't/01-*.t' + +=item testall + +[version 0.2807] + +[Note: the 'testall' action and the code snippets below are currently +in alpha stage, see +L<"http://www.nntp.perl.org/group/perl.module.build/2007/03/msg584.html"> ] + +Runs the C<test> action plus each of the C<test$type> actions defined by +the keys of the C<test_types> parameter. + +Currently, you need to define the ACTION_test$type method yourself and +enumerate them in the test_types parameter. + + my $mb = Module::Build->subclass( + code => q( + sub ACTION_testspecial { shift->generic_test(type => 'special'); } + sub ACTION_testauthor { shift->generic_test(type => 'author'); } + ) + )->new( + ... + test_types => { + special => '.st', + author => ['.at', '.pt' ], + }, + ... + +=item testcover + +[version 0.26] + +Runs the C<test> action using C<Devel::Cover>, generating a +code-coverage report showing which parts of the code were actually +exercised during the tests. + +To pass options to C<Devel::Cover>, set the C<$DEVEL_COVER_OPTIONS> +environment variable: + + DEVEL_COVER_OPTIONS=-ignore,Build ./Build testcover + +=item testdb + +[version 0.05] + +This is a synonym for the 'test' action with the C<debugger=1> +argument. + +=item testpod + +[version 0.25] + +This checks all the files described in the C<docs> action and +produces C<Test::Harness>-style output. If you are a module author, +this is useful to run before creating a new release. + +=item testpodcoverage + +[version 0.28] + +This checks the pod coverage of the distribution and +produces C<Test::Harness>-style output. If you are a module author, +this is useful to run before creating a new release. + +=item versioninstall + +[version 0.16] + +** Note: since C<only.pm> is so new, and since we just recently added +support for it here too, this feature is to be considered +experimental. ** + +If you have the C<only.pm> module installed on your system, you can +use this action to install a module into the version-specific library +trees. This means that you can have several versions of the same +module installed and C<use> a specific one like this: + + use only MyModule => 0.55; + +To override the default installation libraries in C<only::config>, +specify the C<versionlib> parameter when you run the C<Build.PL> script: + + perl Build.PL --versionlib /my/version/place/ + +To override which version the module is installed as, specify the +C<version> parameter when you run the C<Build.PL> script: + + perl Build.PL --version 0.50 + +See the C<only.pm> documentation for more information on +version-specific installs. + +=back + + +=head1 OPTIONS + +=head2 Command Line Options + +The following options can be used during any invocation of C<Build.PL> +or the Build script, during any action. For information on other +options specific to an action, see the documentation for the +respective action. + +NOTE: There is some preliminary support for options to use the more +familiar long option style. Most options can be preceded with the +C<--> long option prefix, and the underscores changed to dashes +(e.g. C<--use-rcfile>). Additionally, the argument to boolean options is +optional, and boolean options can be negated by prefixing them with +C<no> or C<no-> (e.g. C<--noverbose> or C<--no-verbose>). + +=over 4 + +=item quiet + +Suppress informative messages on output. + +=item verbose + +Display extra information about the Build on output. C<verbose> will +turn off C<quiet> + +=item cpan_client + +Sets the C<cpan_client> command for use with the C<installdeps> action. +See C<installdeps> for more details. + +=item use_rcfile + +Load the F<~/.modulebuildrc> option file. This option can be set to +false to prevent the custom resource file from being loaded. + +=item allow_mb_mismatch + +Suppresses the check upon startup that the version of Module::Build +we're now running under is the same version that was initially invoked +when building the distribution (i.e. when the C<Build.PL> script was +first run). As of 0.3601, a mismatch results in a warning instead of +a fatal error, so this option effectively just suppresses the warning. + +=item debug + +Prints Module::Build debugging information to STDOUT, such as a trace of +executed build actions. + +=back + +=head2 Default Options File (F<.modulebuildrc>) + +[version 0.28] + +When Module::Build starts up, it will look first for a file, +F<$ENV{HOME}/.modulebuildrc>. If it's not found there, it will look +in the F<.modulebuildrc> file in the directories referred to by +the environment variables C<HOMEDRIVE> + C<HOMEDIR>, C<USERPROFILE>, +C<APPDATA>, C<WINDIR>, C<SYS$LOGIN>. If the file exists, the options +specified there will be used as defaults, as if they were typed on the +command line. The defaults can be overridden by specifying new values +on the command line. + +The action name must come at the beginning of the line, followed by any +amount of whitespace and then the options. Options are given the same +as they would be on the command line. They can be separated by any +amount of whitespace, including newlines, as long there is whitespace at +the beginning of each continued line. Anything following a hash mark (C<#>) +is considered a comment, and is stripped before parsing. If more than +one line begins with the same action name, those lines are merged into +one set of options. + +Besides the regular actions, there are two special pseudo-actions: the +key C<*> (asterisk) denotes any global options that should be applied +to all actions, and the key 'Build_PL' specifies options to be applied +when you invoke C<perl Build.PL>. + + * verbose=1 # global options + diff flags=-u + install --install_base /home/ken + --install_path html=/home/ken/docs/html + installdeps --cpan_client 'cpanp -i' + +If you wish to locate your resource file in a different location, you +can set the environment variable C<MODULEBUILDRC> to the complete +absolute path of the file containing your options. + +=head2 Environment variables + +=over + +=item MODULEBUILDRC + +[version 0.28] + +Specifies an alternate location for a default options file as described above. + +=item PERL_MB_OPT + +[version 0.36] + +Command line options that are applied to Build.PL or any Build action. The +string is split as the shell would (e.g. whitespace) and the result is +prepended to any actual command-line arguments. + +=back + +=head1 INSTALL PATHS + +[version 0.19] + +When you invoke Module::Build's C<build> action, it needs to figure +out where to install things. The nutshell version of how this works +is that default installation locations are determined from +F<Config.pm>, and they may be overridden by using the C<install_path> +parameter. An C<install_base> parameter lets you specify an +alternative installation root like F</home/foo>, and a C<destdir> lets +you specify a temporary installation directory like F</tmp/install> in +case you want to create bundled-up installable packages. + +Natively, Module::Build provides default installation locations for +the following types of installable items: + +=over 4 + +=item lib + +Usually pure-Perl module files ending in F<.pm>. + +=item arch + +"Architecture-dependent" module files, usually produced by compiling +XS, L<Inline>, or similar code. + +=item script + +Programs written in pure Perl. In order to improve reuse, try to make +these as small as possible - put the code into modules whenever +possible. + +=item bin + +"Architecture-dependent" executable programs, i.e. compiled C code or +something. Pretty rare to see this in a perl distribution, but it +happens. + +=item bindoc + +Documentation for the stuff in C<script> and C<bin>. Usually +generated from the POD in those files. Under Unix, these are manual +pages belonging to the 'man1' category. + +=item libdoc + +Documentation for the stuff in C<lib> and C<arch>. This is usually +generated from the POD in F<.pm> files. Under Unix, these are manual +pages belonging to the 'man3' category. + +=item binhtml + +This is the same as C<bindoc> above, but applies to HTML documents. + +=item libhtml + +This is the same as C<libdoc> above, but applies to HTML documents. + +=back + +Four other parameters let you control various aspects of how +installation paths are determined: + +=over 4 + +=item installdirs + +The default destinations for these installable things come from +entries in your system's C<Config.pm>. You can select from three +different sets of default locations by setting the C<installdirs> +parameter as follows: + + 'installdirs' set to: + core site vendor + + uses the following defaults from Config.pm: + + lib => installprivlib installsitelib installvendorlib + arch => installarchlib installsitearch installvendorarch + script => installscript installsitescript installvendorscript + bin => installbin installsitebin installvendorbin + bindoc => installman1dir installsiteman1dir installvendorman1dir + libdoc => installman3dir installsiteman3dir installvendorman3dir + binhtml => installhtml1dir installsitehtml1dir installvendorhtml1dir [*] + libhtml => installhtml3dir installsitehtml3dir installvendorhtml3dir [*] + + * Under some OS (eg. MSWin32) the destination for HTML documents is + determined by the C<Config.pm> entry C<installhtmldir>. + +The default value of C<installdirs> is "site". If you're creating +vendor distributions of module packages, you may want to do something +like this: + + perl Build.PL --installdirs vendor + +or + + ./Build install --installdirs vendor + +If you're installing an updated version of a module that was included +with perl itself (i.e. a "core module"), then you may set +C<installdirs> to "core" to overwrite the module in its present +location. + +(Note that the 'script' line is different from C<MakeMaker> - +unfortunately there's no such thing as "installsitescript" or +"installvendorscript" entry in C<Config.pm>, so we use the +"installsitebin" and "installvendorbin" entries to at least get the +general location right. In the future, if C<Config.pm> adds some more +appropriate entries, we'll start using those.) + +=item install_path + +Once the defaults have been set, you can override them. + +On the command line, that would look like this: + + perl Build.PL --install_path lib=/foo/lib --install_path arch=/foo/lib/arch + +or this: + + ./Build install --install_path lib=/foo/lib --install_path arch=/foo/lib/arch + +=item install_base + +You can also set the whole bunch of installation paths by supplying the +C<install_base> parameter to point to a directory on your system. For +instance, if you set C<install_base> to "/home/ken" on a Linux +system, you'll install as follows: + + lib => /home/ken/lib/perl5 + arch => /home/ken/lib/perl5/i386-linux + script => /home/ken/bin + bin => /home/ken/bin + bindoc => /home/ken/man/man1 + libdoc => /home/ken/man/man3 + binhtml => /home/ken/html + libhtml => /home/ken/html + +Note that this is I<different> from how C<MakeMaker>'s C<PREFIX> +parameter works. C<install_base> just gives you a default layout under the +directory you specify, which may have little to do with the +C<installdirs=site> layout. + +The exact layout under the directory you specify may vary by system - +we try to do the "sensible" thing on each platform. + +=item destdir + +If you want to install everything into a temporary directory first +(for instance, if you want to create a directory tree that a package +manager like C<rpm> or C<dpkg> could create a package from), you can +use the C<destdir> parameter: + + perl Build.PL --destdir /tmp/foo + +or + + ./Build install --destdir /tmp/foo + +This will effectively install to "/tmp/foo/$sitelib", +"/tmp/foo/$sitearch", and the like, except that it will use +C<File::Spec> to make the pathnames work correctly on whatever +platform you're installing on. + +=item prefix + +Provided for compatibility with C<ExtUtils::MakeMaker>'s PREFIX argument. +C<prefix> should be used when you want Module::Build to install your +modules, documentation, and scripts in the same place as +C<ExtUtils::MakeMaker>'s PREFIX mechanism. + +The following are equivalent. + + perl Build.PL --prefix /tmp/foo + perl Makefile.PL PREFIX=/tmp/foo + +Because of the complex nature of the prefixification logic, the +behavior of PREFIX in C<MakeMaker> has changed subtly over time. +Module::Build's --prefix logic is equivalent to the PREFIX logic found +in C<ExtUtils::MakeMaker> 6.30. + +The maintainers of C<MakeMaker> do understand the troubles with the +PREFIX mechanism, and added INSTALL_BASE support in version 6.31 of +C<MakeMaker>, which was released in 2006. + +If you don't need to retain compatibility with old versions (pre-6.31) of C<ExtUtils::MakeMaker> or +are starting a fresh Perl installation we recommend you use +C<install_base> instead (and C<INSTALL_BASE> in C<ExtUtils::MakeMaker>). +See L<Module::Build::Cookbook/Installing in the same location as +ExtUtils::MakeMaker> for further information. + + +=back + + +=head1 MOTIVATIONS + +There are several reasons I wanted to start over, and not just fix +what I didn't like about C<MakeMaker>: + +=over 4 + +=item * + +I don't like the core idea of C<MakeMaker>, namely that C<make> should be +involved in the build process. Here are my reasons: + +=over 4 + +=item + + +When a person is installing a Perl module, what can you assume about +their environment? Can you assume they have C<make>? No, but you can +assume they have some version of Perl. + +=item + + +When a person is writing a Perl module for intended distribution, can +you assume that they know how to build a Makefile, so they can +customize their build process? No, but you can assume they know Perl, +and could customize that way. + +=back + +For years, these things have been a barrier to people getting the +build/install process to do what they want. + +=item * + +There are several architectural decisions in C<MakeMaker> that make it +very difficult to customize its behavior. For instance, when using +C<MakeMaker> you do C<use ExtUtils::MakeMaker>, but the object created in +C<WriteMakefile()> is actually blessed into a package name that's +created on the fly, so you can't simply subclass +C<ExtUtils::MakeMaker>. There is a workaround C<MY> package that lets +you override certain C<MakeMaker> methods, but only certain explicitly +preselected (by C<MakeMaker>) methods can be overridden. Also, the method +of customization is very crude: you have to modify a string containing +the Makefile text for the particular target. Since these strings +aren't documented, and I<can't> be documented (they take on different +values depending on the platform, version of perl, version of +C<MakeMaker>, etc.), you have no guarantee that your modifications will +work on someone else's machine or after an upgrade of C<MakeMaker> or +perl. + +=item * + +It is risky to make major changes to C<MakeMaker>, since it does so many +things, is so important, and generally works. C<Module::Build> is an +entirely separate package so that I can work on it all I want, without +worrying about backward compatibility with C<MakeMaker>. + +=item * + +Finally, Perl is said to be a language for system administration. +Could it really be the case that Perl isn't up to the task of building +and installing software? Even if that software is a bunch of +C<.pm> files that just need to be copied from one place to +another? My sense was that we could design a system to accomplish +this in a flexible, extensible, and friendly manner. Or die trying. + +=back + + +=head1 TO DO + +The current method of relying on time stamps to determine whether a +derived file is out of date isn't likely to scale well, since it +requires tracing all dependencies backward, it runs into problems on +NFS, and it's just generally flimsy. It would be better to use an MD5 +signature or the like, if available. See C<cons> for an example. + + - append to perllocal.pod + - add a 'plugin' functionality + + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +Development questions, bug reports, and patches should be sent to the +Module-Build mailing list at <module-build@perl.org>. + +Bug reports are also welcome at +<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Build>. + +The latest development version is available from the Git +repository at <https://github.com/Perl-Toolchain-Gang/Module-Build> + + +=head1 COPYRIGHT + +Copyright (c) 2001-2006 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + + +=head1 SEE ALSO + +perl(1), L<Module::Build::Cookbook>, L<Module::Build::Authoring>, +L<Module::Build::API>, L<ExtUtils::MakeMaker> + +F<META.yml> Specification: +L<CPAN::Meta::Spec> + +L<http://www.dsmit.com/cons/> + +L<http://search.cpan.org/dist/PerlBuildSystem/> + +=cut diff --git a/lib/Module/Build/API.pod b/lib/Module/Build/API.pod new file mode 100644 index 0000000..1a2697e --- /dev/null +++ b/lib/Module/Build/API.pod @@ -0,0 +1,2124 @@ +=head1 NAME + +Module::Build::API - API Reference for Module Authors + +=for :stopwords apache bsd distdir distsign gpl installdirs lgpl mit mozilla packlists + +=head1 DESCRIPTION + +I list here some of the most important methods in C<Module::Build>. +Normally you won't need to deal with these methods unless you want to +subclass C<Module::Build>. But since one of the reasons I created +this module in the first place was so that subclassing is possible +(and easy), I will certainly write more docs as the interface +stabilizes. + + +=head2 CONSTRUCTORS + +=over 4 + +=item current() + +[version 0.20] + +This method returns a reasonable facsimile of the currently-executing +C<Module::Build> object representing the current build. You can use +this object to query its L</notes()> method, inquire about installed +modules, and so on. This is a great way to share information between +different parts of your build process. For instance, you can ask +the user a question during C<perl Build.PL>, then use their answer +during a regression test: + + # In Build.PL: + my $color = $build->prompt("What is your favorite color?"); + $build->notes(color => $color); + + # In t/colortest.t: + use Module::Build; + my $build = Module::Build->current; + my $color = $build->notes('color'); + ... + +The way the C<current()> method is currently implemented, there may be +slight differences between the C<$build> object in Build.PL and the +one in C<t/colortest.t>. It is our goal to minimize these differences +in future releases of Module::Build, so please report any anomalies +you find. + +One important caveat: in its current implementation, C<current()> will +B<NOT> work correctly if you have changed out of the directory that +C<Module::Build> was invoked from. + +=item new() + +[version 0.03] + +Creates a new Module::Build object. Arguments to the new() method are +listed below. Most arguments are optional, but you must provide +either the L</module_name> argument, or L</dist_name> and one of +L</dist_version> or L</dist_version_from>. In other words, you must +provide enough information to determine both a distribution name and +version. + + +=over 4 + +=item add_to_cleanup + +[version 0.19] + +An array reference of files to be cleaned up when the C<clean> action +is performed. See also the L<add_to_cleanup()|/"add_to_cleanup(@files)"> +method. + +=item allow_pureperl + +[version 0.4005] + +A bool indicating the module is still functional without its xs parts. +When an XS module is build with --pureperl_only, it will otherwise fail. + +=item auto_configure_requires + +[version 0.34] + +This parameter determines whether Module::Build will add itself +automatically to configure_requires (and build_requires) if Module::Build +is not already there. The required version will be the last 'major' release, +as defined by the decimal version truncated to two decimal places (e.g. 0.34, +instead of 0.3402). The default value is true. + +=item auto_features + +[version 0.26] + +This parameter supports the setting of features (see +L</feature($name)>) automatically based on a set of prerequisites. For +instance, for a module that could optionally use either MySQL or +PostgreSQL databases, you might use C<auto_features> like this: + + my $build = Module::Build->new + ( + ...other stuff here... + auto_features => { + pg_support => { + description => "Interface with Postgres databases", + requires => { 'DBD::Pg' => 23.3, + 'DateTime::Format::Pg' => 0 }, + }, + mysql_support => { + description => "Interface with MySQL databases", + requires => { 'DBD::mysql' => 17.9, + 'DateTime::Format::MySQL' => 0 }, + }, + } + ); + +For each feature named, the required prerequisites will be checked, and +if there are no failures, the feature will be enabled (set to C<1>). +Otherwise the failures will be displayed to the user and the feature +will be disabled (set to C<0>). + +See the documentation for L</requires> for the details of how +requirements can be specified. + +=item autosplit + +[version 0.04] + +An optional C<autosplit> argument specifies a file which should be run +through the L<AutoSplit::autosplit()|AutoSplit/autosplit> function. +If multiple files should be split, the argument may be given as an +array of the files to split. + +In general I don't consider autosplitting a great idea, because it's +not always clear that autosplitting achieves its intended performance +benefits. It may even harm performance in environments like mod_perl, +where as much as possible of a module's code should be loaded during +startup. + +=item build_class + +[version 0.28] + +The Module::Build class or subclass to use in the build script. +Defaults to "Module::Build" or the class name passed to or created by +a call to L</subclass()>. This property is useful if you're +writing a custom Module::Build subclass and have a bootstrapping +problem--that is, your subclass requires modules that may not be +installed when C<perl Build.PL> is executed, but you've listed in +L</build_requires> so that they should be available when C<./Build> is +executed. + +=item build_requires + +[version 0.07] + +Modules listed in this section are necessary to build and install the +given module, but are not necessary for regular usage of it. This is +actually an important distinction - it allows for tighter control over +the body of installed modules, and facilitates correct dependency +checking on binary/packaged distributions of the module. + +See the documentation for L<Module::Build::Authoring/"PREREQUISITES"> +for the details of how requirements can be specified. + +=item configure_requires + +[version 0.30] + +Modules listed in this section must be installed I<before> configuring +this distribution (i.e. before running the F<Build.PL> script). +This might be a specific minimum version of C<Module::Build> or any +other module the F<Build.PL> needs in order to do its stuff. Clients +like C<CPAN.pm> or C<CPANPLUS> will be expected to pick +C<configure_requires> out of the F<META.yml> file and install these +items before running the C<Build.PL>. + +Module::Build may automatically add itself to configure_requires. +See L</auto_configure_requires> for details. + +See the documentation for L<Module::Build::Authoring/"PREREQUISITES"> +for the details of how requirements can be specified. + +=item test_requires + +[version 0.4004] + +Modules listed in this section must be installed before testing the distribution. + +See the documentation for L<Module::Build::Authoring/"PREREQUISITES"> +for the details of how requirements can be specified. + +=item create_packlist + +[version 0.28] + +If true, this parameter tells Module::Build to create a F<.packlist> +file during the C<install> action, just like C<ExtUtils::MakeMaker> does. +The file is created in a subdirectory of the C<arch> installation +location. It is used by some other tools (CPAN, CPANPLUS, etc.) for +determining what files are part of an install. + +The default value is true. This parameter was introduced in +Module::Build version 0.2609; previously no packlists were ever +created by Module::Build. + +=item c_source + +[version 0.04] + +An optional C<c_source> argument specifies a directory which contains +C source files that the rest of the build may depend on. Any C<.c> +files in the directory will be compiled to object files. The +directory will be added to the search path during the compilation and +linking phases of any C or XS files. + +[version 0.3604] + +A list of directories can be supplied using an anonymous array +reference of strings. + +=item conflicts + +[version 0.07] + +Modules listed in this section conflict in some serious way with the +given module. C<Module::Build> (or some higher-level tool) will +refuse to install the given module if the given module/version is also +installed. + +See the documentation for L<Module::Build::Authoring/"PREREQUISITES"> +for the details of how requirements can be specified. + +=item create_license + +[version 0.31] + +This parameter tells Module::Build to automatically create a +F<LICENSE> file at the top level of your distribution, containing the +full text of the author's chosen license. This requires +C<Software::License> on the author's machine, and further requires +that the C<license> parameter specifies a license that it knows about. + +=item create_makefile_pl + +[version 0.19] + +This parameter lets you use C<Module::Build::Compat> during the +C<distdir> (or C<dist>) action to automatically create a Makefile.PL +for compatibility with C<ExtUtils::MakeMaker>. The parameter's value +should be one of the styles named in the L<Module::Build::Compat> +documentation. + +=item create_readme + +[version 0.22] + +This parameter tells Module::Build to automatically create a F<README> +file at the top level of your distribution. Currently it will simply +use C<Pod::Text> (or C<Pod::Readme> if it's installed) on the file +indicated by C<dist_version_from> and put the result in the F<README> +file. This is by no means the only recommended style for writing a +F<README>, but it seems to be one common one used on the CPAN. + +If you generate a F<README> in this way, it's probably a good idea to +create a separate F<INSTALL> file if that information isn't in the +generated F<README>. + +=item dist_abstract + +[version 0.20] + +This should be a short description of the distribution. This is used when +generating metadata for F<META.yml> and PPD files. If it is not given +then C<Module::Build> looks in the POD of the module from which it gets +the distribution's version. If it finds a POD section marked "=head1 +NAME", then it looks for the first line matching C<\s+-\s+(.+)>, +and uses the captured text as the abstract. + +=item dist_author + +[version 0.20] + +This should be something like "John Doe <jdoe@example.com>", or if +there are multiple authors, an anonymous array of strings may be +specified. This is used when generating metadata for F<META.yml> and +PPD files. If this is not specified, then C<Module::Build> looks at +the module from which it gets the distribution's version. If it finds +a POD section marked "=head1 AUTHOR", then it uses the contents of +this section. + +=item dist_name + +[version 0.11] + +Specifies the name for this distribution. Most authors won't need to +set this directly, they can use C<module_name> to set C<dist_name> to +a reasonable default. However, some agglomerative distributions like +C<libwww-perl> or C<bioperl> have names that don't correspond directly +to a module name, so C<dist_name> can be set independently. + +=item dist_suffix + +[version 0.37] + +Specifies an optional suffix to include after the version number +in the distribution directory (and tarball) name. The only suffix +currently recognized by PAUSE is 'TRIAL', which indicates that the +distribution should not be indexed. For example: + + Foo-Bar-1.23-TRIAL.tar.gz + +This will automatically do the "right thing" depending on C<dist_version> and +C<release_status>. When C<dist_version> does not have an underscore and +C<release_status> is not 'stable', then C<dist_suffix> will default to 'TRIAL'. +Otherwise it will default to the empty string, disabling the suffix. + +In general, authors should only set this if they B<must> override the default +behavior for some particular purpose. + +=item dist_version + +[version 0.11] + +Specifies a version number for the distribution. See L</module_name> +or L</dist_version_from> for ways to have this set automatically from a +C<$VERSION> variable in a module. One way or another, a version +number needs to be set. + +=item dist_version_from + +[version 0.11] + +Specifies a file to look for the distribution version in. Most +authors won't need to set this directly, they can use L</module_name> +to set it to a reasonable default. + +The version is extracted from the specified file according to the same +rules as L<ExtUtils::MakeMaker> and C<CPAN.pm>. It involves finding +the first line that matches the regular expression + + /([\$*])(([\w\:\']*)\bVERSION)\b.*\=/ + +eval()-ing that line, then checking the value of the C<$VERSION> +variable. Quite ugly, really, but all the modules on CPAN depend on +this process, so there's no real opportunity to change to something +better. + +If the target file of L</dist_version_from> contains more than one package +declaration, the version returned will be the one matching the configured +L</module_name>. + +=item dynamic_config + +[version 0.07] + +A boolean flag indicating whether the F<Build.PL> file must be +executed, or whether this module can be built, tested and installed +solely from consulting its metadata file. The main reason to set this +to a true value is that your module performs some dynamic +configuration as part of its build/install process. If the flag is +omitted, the F<META.yml> spec says that installation tools should +treat it as 1 (true), because this is a safer way to behave. + +Currently C<Module::Build> doesn't actually do anything with this flag +- it's up to higher-level tools like C<CPAN.pm> to do something useful +with it. It can potentially bring lots of security, packaging, and +convenience improvements. + +=item extra_compiler_flags + +=item extra_linker_flags + +[version 0.19] + +These parameters can contain array references (or strings, in which +case they will be split into arrays) to pass through to the compiler +and linker phases when compiling/linking C code. For example, to tell +the compiler that your code is C++, you might do: + + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + extra_compiler_flags => ['-x', 'c++'], + ); + +To link your XS code against glib you might write something like: + + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + dynamic_config => 1, + extra_compiler_flags => scalar `glib-config --cflags`, + extra_linker_flags => scalar `glib-config --libs`, + ); + +=item extra_manify_args + +[version 0.4006] + +Any extra arguments to pass to C<< Pod::Man->new() >> when building +man pages. One common choice might be C<< utf8 => 1 >> to get Unicode +support. + +=item get_options + +[version 0.26] + +You can pass arbitrary command line options to F<Build.PL> or +F<Build>, and they will be stored in the Module::Build object and can +be accessed via the L</args()> method. However, sometimes you want +more flexibility out of your argument processing than this allows. In +such cases, use the C<get_options> parameter to pass in a hash +reference of argument specifications, and the list of arguments to +F<Build.PL> or F<Build> will be processed according to those +specifications before they're passed on to C<Module::Build>'s own +argument processing. + +The supported option specification hash keys are: + + +=over 4 + +=item type + +The type of option. The types are those supported by Getopt::Long; consult +its documentation for a complete list. Typical types are C<=s> for strings, +C<+> for additive options, and C<!> for negatable options. If the +type is not specified, it will be considered a boolean, i.e. no +argument is taken and a value of 1 will be assigned when the option is +encountered. + +=item store + +A reference to a scalar in which to store the value passed to the option. +If not specified, the value will be stored under the option name in the +hash returned by the C<args()> method. + +=item default + +A default value for the option. If no default value is specified and no option +is passed, then the option key will not exist in the hash returned by +C<args()>. + +=back + + +You can combine references to your own variables or subroutines with +unreferenced specifications, for which the result will also be stored in the +hash returned by C<args()>. For example: + + my $loud = 0; + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + get_options => { + Loud => { store => \$loud }, + Dbd => { type => '=s' }, + Quantity => { type => '+' }, + } + ); + + print STDERR "HEY, ARE YOU LISTENING??\n" if $loud; + print "We'll use the ", $build->args('Dbd'), " DBI driver\n"; + print "Are you sure you want that many?\n" + if $build->args('Quantity') > 2; + +The arguments for such a specification can be called like so: + + perl Build.PL --Loud --Dbd=DBD::pg --Quantity --Quantity --Quantity + +B<WARNING:> Any option specifications that conflict with Module::Build's own +options (defined by its properties) will throw an exception. Use capitalized +option names to avoid unintended conflicts with future Module::Build options. + +Consult the Getopt::Long documentation for details on its usage. + +=item include_dirs + +[version 0.24] + +Specifies any additional directories in which to search for C header +files. May be given as a string indicating a single directory, or as +a list reference indicating multiple directories. + +=item install_path + +[version 0.19] + +You can set paths for individual installable elements by using the +C<install_path> parameter: + + my $build = Module::Build->new + ( + ...other stuff here... + install_path => { + lib => '/foo/lib', + arch => '/foo/lib/arch', + } + ); + +=item installdirs + +[version 0.19] + +Determines where files are installed within the normal perl hierarchy +as determined by F<Config.pm>. Valid values are: C<core>, C<site>, +C<vendor>. The default is C<site>. See +L<Module::Build/"INSTALL PATHS"> + +=item license + +[version 0.07] + +Specifies the licensing terms of your distribution. + +As of Module::Build version 0.36_14, you may use a L<Software::License> +subclass name (e.g. 'Apache_2_0') instead of one of the keys below. + +The legacy list of valid license values include: + +=over 4 + +=item apache + +The distribution is licensed under the Apache License, Version 2.0 +(L<http://apache.org/licenses/LICENSE-2.0>). + +=item apache_1_1 + +The distribution is licensed under the Apache Software License, Version 1.1 +(L<http://apache.org/licenses/LICENSE-1.1>). + +=item artistic + +The distribution is licensed under the Artistic License, as specified +by the F<Artistic> file in the standard Perl distribution. + +=item artistic_2 + +The distribution is licensed under the Artistic 2.0 License +(L<http://opensource.org/licenses/artistic-license-2.0.php>.) + +=item bsd + +The distribution is licensed under the BSD License +(L<http://www.opensource.org/licenses/bsd-license.php>). + +=item gpl + +The distribution is licensed under the terms of the GNU General +Public License (L<http://www.opensource.org/licenses/gpl-license.php>). + +=item lgpl + +The distribution is licensed under the terms of the GNU Lesser +General Public License +(L<http://www.opensource.org/licenses/lgpl-license.php>). + +=item mit + +The distribution is licensed under the MIT License +(L<http://opensource.org/licenses/mit-license.php>). + +=item mozilla + +The distribution is licensed under the Mozilla Public +License. (L<http://opensource.org/licenses/mozilla1.0.php> or +L<http://opensource.org/licenses/mozilla1.1.php>) + +=item open_source + +The distribution is licensed under some other Open Source +Initiative-approved license listed at +L<http://www.opensource.org/licenses/>. + +=item perl + +The distribution may be copied and redistributed under the same terms +as Perl itself (this is by far the most common licensing option for +modules on CPAN). This is a dual license, in which the user may +choose between either the GPL or the Artistic license. + +=item restrictive + +The distribution may not be redistributed without special permission +from the author and/or copyright holder. + +=item unrestricted + +The distribution is licensed under a license that is B<not> approved +by www.opensource.org but that allows distribution without +restrictions. + +=back + +Note that you must still include the terms of your license in your +code and documentation - this field only sets the information that is included +in distribution metadata to let automated tools figure out your +licensing restrictions. Humans still need something to read. If you +choose to provide this field, you should make sure that you keep it in +sync with your written documentation if you ever change your licensing +terms. + +You may also use a license type of C<unknown> if you don't wish to +specify your terms in the metadata. + +Also see the C<create_license> parameter. + +=item meta_add + +[version 0.28] + +A hash of key/value pairs that should be added to the F<META.yml> file +during the C<distmeta> action. Any existing entries with the same +names will be overridden. + +See the L</"MODULE METADATA"> section for details. + +=item meta_merge + +[version 0.28] + +A hash of key/value pairs that should be merged into the F<META.yml> +file during the C<distmeta> action. Any existing entries with the +same names will be overridden. + +The only difference between C<meta_add> and C<meta_merge> is their +behavior on hash-valued and array-valued entries: C<meta_add> will +completely blow away the existing hash or array value, but +C<meta_merge> will merge the supplied data into the existing hash or +array value. + +See the L</"MODULE METADATA"> section for details. + +=item module_name + +[version 0.03] + +The C<module_name> is a shortcut for setting default values of +C<dist_name> and C<dist_version_from>, reflecting the fact that the +majority of CPAN distributions are centered around one "main" module. +For instance, if you set C<module_name> to C<Foo::Bar>, then +C<dist_name> will default to C<Foo-Bar> and C<dist_version_from> will +default to C<lib/Foo/Bar.pm>. C<dist_version_from> will in turn be +used to set C<dist_version>. + +Setting C<module_name> won't override a C<dist_*> parameter you +specify explicitly. + +=item needs_compiler + +[version 0.36] + +The C<needs_compiler> parameter indicates whether a compiler is required to +build the distribution. The default is false, unless XS files are found or +the C<c_source> parameter is set, in which case it is true. If true, +L<ExtUtils::CBuilder> is automatically added to C<build_requires> if needed. + +For a distribution where a compiler is I<optional>, e.g. a dual XS/pure-Perl +distribution, C<needs_compiler> should explicitly be set to a false value. + +=item PL_files + +[version 0.06] + +An optional parameter specifying a set of C<.PL> files in your +distribution. These will be run as Perl scripts prior to processing +the rest of the files in your distribution with the name of the file +they're generating as an argument. They are usually used as templates +for creating other files dynamically, so that a file like +C<lib/Foo/Bar.pm.PL> might create the file C<lib/Foo/Bar.pm>. + +The files are specified with the C<.PL> files as hash keys, and the +file(s) they generate as hash values, like so: + + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + ... + PL_files => { 'lib/Foo/Bar.pm.PL' => 'lib/Foo/Bar.pm' }, + ); + +Note that the path specifications are I<always> given in Unix-like +format, not in the style of the local system. + +If your C<.PL> scripts don't create any files, or if they create files +with unexpected names, or even if they create multiple files, you can +indicate that so that Module::Build can properly handle these created +files: + + PL_files => { + 'lib/Foo/Bar.pm.PL' => 'lib/Foo/Bar.pm', + 'lib/something.PL' => ['/lib/something', '/lib/else'], + 'lib/funny.PL' => [], + } + +Here's an example of a simple PL file. + + my $output_file = shift; + open my $fh, ">", $output_file or die "Can't open $output_file: $!"; + + print $fh <<'END'; + #!/usr/bin/perl + + print "Hello, world!\n"; + END + +PL files are not installed by default, so its safe to put them in +F<lib/> and F<bin/>. + + +=item pm_files + +[version 0.19] + +An optional parameter specifying the set of C<.pm> files in this +distribution, specified as a hash reference whose keys are the files' +locations in the distributions, and whose values are their logical +locations based on their package name, i.e. where they would be found +in a "normal" Module::Build-style distribution. This parameter is +mainly intended to support alternative layouts of files. + +For instance, if you have an old-style C<MakeMaker> distribution for a +module called C<Foo::Bar> and a F<Bar.pm> file at the top level of the +distribution, you could specify your layout in your C<Build.PL> like +this: + + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + ... + pm_files => { 'Bar.pm' => 'lib/Foo/Bar.pm' }, + ); + +Note that the values should include C<lib/>, because this is where +they would be found in a "normal" Module::Build-style distribution. + +Note also that the path specifications are I<always> given in +Unix-like format, not in the style of the local system. + +=item pod_files + +[version 0.19] + +Just like C<pm_files>, but used for specifying the set of C<.pod> +files in your distribution. + +=item recommends + +[version 0.08] + +This is just like the L</requires> argument, except that modules listed +in this section aren't essential, just a good idea. We'll just print +a friendly warning if one of these modules aren't found, but we'll +continue running. + +If a module is recommended but not required, all tests should still +pass if the module isn't installed. This may mean that some tests +may be skipped if recommended dependencies aren't present. + +Automated tools like CPAN.pm should inform the user when recommended +modules aren't installed, and it should offer to install them if it +wants to be helpful. + +See the documentation for L<Module::Build::Authoring/"PREREQUISITES"> +for the details of how requirements can be specified. + +=item recursive_test_files + +[version 0.28] + +Normally, C<Module::Build> does not search subdirectories when looking +for tests to run. When this options is set it will search recursively +in all subdirectories of the standard 't' test directory. + +=item release_status + +[version 0.37] + +The CPAN Meta Spec version 2 adds C<release_status> to allow authors +to specify how a distribution should be indexed. Consistent with the +spec, this parameter can only have one three values: 'stable', +'testing' or 'unstable'. + +Unless explicitly set by the author, C<release_status> will default +to 'stable' unless C<dist_version> contains an underscore, in which +case it will default to 'testing'. + +It is an error to specify a C<release_status> of 'stable' when +C<dist_version> contains an underscore character. + +=item requires + +[version 0.07] + +An optional C<requires> argument specifies any module prerequisites +that the current module depends on. + +One note: currently C<Module::Build> doesn't actually I<require> the +user to have dependencies installed, it just strongly urges. In the +future we may require it. There's also a L</recommends> section for +things that aren't absolutely required. + +Automated tools like CPAN.pm should refuse to install a module if one +of its dependencies isn't satisfied, unless a "force" command is given +by the user. If the tools are helpful, they should also offer to +install the dependencies. + +A synonym for C<requires> is C<prereq>, to help succour people +transitioning from C<ExtUtils::MakeMaker>. The C<requires> term is +preferred, but the C<prereq> term will remain valid in future +distributions. + +See the documentation for L<Module::Build::Authoring/"PREREQUISITES"> +for the details of how requirements can be specified. + +=item script_files + +[version 0.18] + +An optional parameter specifying a set of files that should be +installed as executable Perl scripts when the module is installed. +May be given as an array reference of the files, as a hash reference +whose keys are the files (and whose values will currently be ignored), +as a string giving the name of a directory in which to find scripts, +or as a string giving the name of a single script file. + +The default is to install any scripts found in a F<bin> directory at +the top level of the distribution, minus any keys of L<PL_files>. + +For backward compatibility, you may use the parameter C<scripts> +instead of C<script_files>. Please consider this usage deprecated, +though it will continue to exist for several version releases. + +=item share_dir + +[version 0.36] + +An optional parameter specifying directories of static data files to +be installed as read-only files for use with L<File::ShareDir>. The +C<share_dir> property supports both distribution-level and +module-level share files. + +The simplest use of C<share_dir> is to set it to a directory name or an +arrayref of directory names containing files to be installed in the +distribution-level share directory. + + share_dir => 'share' + +Alternatively, if C<share_dir> is a hashref, it may have C<dist> or +C<module> keys providing full flexibility in defining how share +directories should be installed. + + share_dir => { + dist => [ 'examples', 'more_examples' ], + module => { + Foo::Templates => ['share/html', 'share/text'], + Foo::Config => 'share/config', + } + } + +If C<share_dir> is set, then File::ShareDir will automatically be added +to the C<requires> hash. + +=item sign + +[version 0.16] + +If a true value is specified for this parameter, L<Module::Signature> +will be used (via the 'distsign' action) to create a SIGNATURE file +for your distribution during the 'distdir' action, and to add the +SIGNATURE file to the MANIFEST (therefore, don't add it yourself). + +The default value is false. In the future, the default may change to +true if you have C<Module::Signature> installed on your system. + +=item tap_harness_args + +[version 0.2808_03] + +An optional parameter specifying parameters to be passed to TAP::Harness when +running tests. Must be given as a hash reference of parameters; see the +L<TAP::Harness|TAP::Harness> documentation for details. Note that specifying +this parameter will implicitly set C<use_tap_harness> to a true value. You +must therefore be sure to add TAP::Harness as a requirement for your module in +L</build_requires>. + +=item test_files + +[version 0.23] + +An optional parameter specifying a set of files that should be used as +C<Test::Harness>-style regression tests to be run during the C<test> +action. May be given as an array reference of the files, or as a hash +reference whose keys are the files (and whose values will currently be +ignored). If the argument is given as a single string (not in an +array reference), that string will be treated as a C<glob()> pattern +specifying the files to use. + +The default is to look for a F<test.pl> script in the top-level +directory of the distribution, and any files matching the glob pattern +C<*.t> in the F<t/> subdirectory. If the C<recursive_test_files> +property is true, then the C<t/> directory will be scanned recursively +for C<*.t> files. + +=item use_tap_harness + +[version 0.2808_03] + +An optional parameter indicating whether or not to use TAP::Harness for +testing rather than Test::Harness. Defaults to false. If set to true, you must +therefore be sure to add TAP::Harness as a requirement for your module in +L</build_requires>. Implicitly set to a true value if C<tap_harness_args> is +specified. + +=item xs_files + +[version 0.19] + +Just like C<pm_files>, but used for specifying the set of C<.xs> +files in your distribution. + +=back + + +=item new_from_context(%args) + +[version 0.28] + +When called from a directory containing a F<Build.PL> script (in other words, +the base directory of a distribution), this method will run the F<Build.PL> and +call C<resume()> to return the resulting C<Module::Build> object to the caller. +Any key-value arguments given to C<new_from_context()> are essentially like +command line arguments given to the F<Build.PL> script, so for example you +could pass C<< verbose => 1 >> to this method to turn on verbosity. + +=item resume() + +[version 0.03] + +You'll probably never call this method directly, it's only called from the +auto-generated C<Build> script (and the C<new_from_context> method). The +C<new()> method is only called once, when the user runs C<perl Build.PL>. +Thereafter, when the user runs C<Build test> or another action, the +C<Module::Build> object is created using the C<resume()> method to +re-instantiate with the settings given earlier to C<new()>. + +=item subclass() + +[version 0.06] + +This creates a new C<Module::Build> subclass on the fly, as described +in the L<Module::Build::Authoring/"SUBCLASSING"> section. The caller +must provide either a C<class> or C<code> parameter, or both. The +C<class> parameter indicates the name to use for the new subclass, and +defaults to C<MyModuleBuilder>. The C<code> parameter specifies Perl +code to use as the body of the subclass. + +=item add_property + +[version 0.31] + + package 'My::Build'; + use base 'Module::Build'; + __PACKAGE__->add_property( 'pedantic' ); + __PACKAGE__->add_property( answer => 42 ); + __PACKAGE__->add_property( + 'epoch', + default => sub { time }, + check => sub { + return 1 if /^\d+$/; + shift->property_error( "'$_' is not an epoch time" ); + return 0; + }, + ); + +Adds a property to a Module::Build class. Properties are those attributes of a +Module::Build object which can be passed to the constructor and which have +accessors to get and set them. All of the core properties, such as +C<module_name> and C<license>, are defined using this class method. + +The first argument to C<add_property()> is always the name of the property. +The second argument can be either a default value for the property, or a list +of key/value pairs. The supported keys are: + +=over + +=item C<default> + +The default value. May optionally be specified as a code reference, in which +case the return value from the execution of the code reference will be used. +If you need the default to be a code reference, just use a code reference to +return it, e.g.: + + default => sub { sub { ... } }, + +=item C<check> + +A code reference that checks that a value specified for the property is valid. +During the execution of the code reference, the new value will be included in +the C<$_> variable. If the value is correct, the C<check> code reference +should return true. If the value is not correct, it sends an error message to +C<property_error()> and returns false. + +=back + +When this method is called, a new property will be installed in the +Module::Build class, and an accessor will be built to allow the property to be +get or set on the build object. + + print $build->pedantic, $/; + $build->pedantic(0); + +If the default value is a hash reference, this generates a special-case +accessor method, wherein individual key/value pairs may be set or fetched: + + print "stuff{foo} is: ", $build->stuff( 'foo' ), $/; + $build->stuff( foo => 'bar' ); + print $build->stuff( 'foo' ), $/; # Outputs "bar" + +Of course, you can still set the entire hash reference at once, as well: + + $build->stuff( { foo => 'bar', baz => 'yo' } ); + +In either case, if a C<check> has been specified for the property, it will be +applied to the entire hash. So the check code reference should look something +like: + + check => sub { + return 1 if defined $_ && exists $_->{foo}; + shift->property_error(qq{Property "stuff" needs "foo"}); + return 0; + }, + +=item property_error + +[version 0.31] + +=back + + +=head2 METHODS + +=over 4 + +=item add_build_element($type) + +[version 0.26] + +Adds a new type of entry to the build process. Accepts a single +string specifying its type-name. There must also be a method defined +to process things of that type, e.g. if you add a build element called +C<'foo'>, then you must also define a method called +C<process_foo_files()>. + +See also +L<Module::Build::Cookbook/"Adding new file types to the build process">. + +=item add_to_cleanup(@files) + +[version 0.03] + +You may call C<< $self->add_to_cleanup(@patterns) >> to tell +C<Module::Build> that certain files should be removed when the user +performs the C<Build clean> action. The arguments to the method are +patterns suitable for passing to Perl's C<glob()> function, specified +in either Unix format or the current machine's native format. It's +usually convenient to use Unix format when you hard-code the filenames +(e.g. in F<Build.PL>) and the native format when the names are +programmatically generated (e.g. in a testing script). + +I decided to provide a dynamic method of the C<$build> object, rather +than just use a static list of files named in the F<Build.PL>, because +these static lists can get difficult to manage. I usually prefer to +keep the responsibility for registering temporary files close to the +code that creates them. + +=item args() + +[version 0.26] + + my $args_href = $build->args; + my %args = $build->args; + my $arg_value = $build->args($key); + $build->args($key, $value); + +This method is the preferred interface for retrieving the arguments passed via +command line options to F<Build.PL> or F<Build>, minus the Module-Build +specific options. + +When called in a scalar context with no arguments, this method returns a +reference to the hash storing all of the arguments; in an array context, it +returns the hash itself. When passed a single argument, it returns the value +stored in the args hash for that option key. When called with two arguments, +the second argument is assigned to the args hash under the key passed as the +first argument. + +=item autosplit_file($from, $to) + +[version 0.28] + +Invokes the L<AutoSplit> module on the C<$from> file, sending the +output to the C<lib/auto> directory inside C<$to>. C<$to> is +typically the C<blib/> directory. + +=item base_dir() + +[version 0.14] + +Returns a string containing the root-level directory of this build, +i.e. where the C<Build.PL> script and the C<lib> directory can be +found. This is usually the same as the current working directory, +because the C<Build> script will C<chdir()> into this directory as +soon as it begins execution. + +=item build_requires() + +[version 0.21] + +Returns a hash reference indicating the C<build_requires> +prerequisites that were passed to the C<new()> method. + +=item can_action( $action ) + +Returns a reference to the method that defines C<$action>, or false +otherwise. This is handy for actions defined (or maybe not!) in subclasses. + +[version 0.32_xx] + +=item cbuilder() + +[version 0.2809] + +Returns the internal ExtUtils::CBuilder object that can be used for +compiling & linking C code. If no such object is available (e.g. if +the system has no compiler installed) an exception will be thrown. + +=item check_installed_status($module, $version) + +[version 0.11] + +This method returns a hash reference indicating whether a version +dependency on a certain module is satisfied. The C<$module> argument +is given as a string like C<"Data::Dumper"> or C<"perl">, and the +C<$version> argument can take any of the forms described in L</requires> +above. This allows very fine-grained version checking. + +The returned hash reference has the following structure: + + { + ok => $whether_the_dependency_is_satisfied, + have => $version_already_installed, + need => $version_requested, # Same as incoming $version argument + message => $informative_error_message, + } + +If no version of C<$module> is currently installed, the C<have> value +will be the string C<< "<none>" >>. Otherwise the C<have> value will +simply be the version of the installed module. Note that this means +that if C<$module> is installed but doesn't define a version number, +the C<have> value will be C<undef> - this is why we don't use C<undef> +for the case when C<$module> isn't installed at all. + +This method may be called either as an object method +(C<< $build->check_installed_status($module, $version) >>) +or as a class method +(C<< Module::Build->check_installed_status($module, $version) >>). + +=item check_installed_version($module, $version) + +[version 0.05] + +Like L<check_installed_status()|/"check_installed_status($module, $version)">, +but simply returns true or false depending on whether module +C<$module> satisfies the dependency C<$version>. + +If the check succeeds, the return value is the actual version of +C<$module> installed on the system. This allows you to do the +following: + + my $installed = $build->check_installed_version('DBI', '1.15'); + if ($installed) { + print "Congratulations, version $installed of DBI is installed.\n"; + } else { + die "Sorry, you must install DBI.\n"; + } + +If the check fails, we return false and set C<$@> to an informative +error message. + +If C<$version> is any non-true value (notably zero) and any version of +C<$module> is installed, we return true. In this case, if C<$module> +doesn't define a version, or if its version is zero, we return the +special value "0 but true", which is numerically zero, but logically +true. + +In general you might prefer to use C<check_installed_status> if you +need detailed information, or this method if you just need a yes/no +answer. + +=item compare_versions($v1, $op, $v2) + +[version 0.28] + +Compares two module versions C<$v1> and C<$v2> using the operator +C<$op>, which should be one of Perl's numeric operators like C<!=> or +C<< >= >> or the like. We do at least a halfway-decent job of +handling versions that aren't strictly numeric, like C<0.27_02>, but +exotic stuff will likely cause problems. + +In the future, the guts of this method might be replaced with a call +out to C<version.pm>. + +=item config($key) + +=item config($key, $value) + +=item config() [deprecated] + +[version 0.22] + +With a single argument C<$key>, returns the value associated with that +key in the C<Config.pm> hash, including any changes the author or user +has specified. + +With C<$key> and C<$value> arguments, sets the value for future +callers of C<config($key)>. + +With no arguments, returns a hash reference containing all such +key-value pairs. This usage is deprecated, though, because it's a +resource hog and violates encapsulation. + +=item config_data($name) + +=item config_data($name => $value) + +[version 0.26] + +With a single argument, returns the value of the configuration +variable C<$name>. With two arguments, sets the given configuration +variable to the given value. The value may be any Perl scalar that's +serializable with C<Data::Dumper>. For instance, if you write a +module that can use a MySQL or PostgreSQL back-end, you might create +configuration variables called C<mysql_connect> and +C<postgres_connect>, and set each to an array of connection parameters +for C<< DBI->connect() >>. + +Configuration values set in this way using the Module::Build object +will be available for querying during the build/test process and after +installation via the generated C<...::ConfigData> module, as +C<< ...::ConfigData->config($name) >>. + +The L<feature()|/"feature($name)"> and C<config_data()> methods represent +Module::Build's main support for configuration of installed modules. +See also L<Module::Build::Authoring/"SAVING CONFIGURATION INFORMATION">. + +=item conflicts() + +[version 0.21] + +Returns a hash reference indicating the C<conflicts> prerequisites +that were passed to the C<new()> method. + +=item contains_pod($file) [deprecated] + +[version 0.20] + +[Deprecated] Please see L<Module::Metadata> instead. + +Returns true if the given file appears to contain POD documentation. +Currently this checks whether the file has a line beginning with +'=pod', '=head', or '=item', but the exact semantics may change in the +future. + +=item copy_if_modified(%parameters) + +[version 0.19] + +Takes the file in the C<from> parameter and copies it to the file in +the C<to> parameter, or the directory in the C<to_dir> parameter, if +the file has changed since it was last copied (or if it doesn't exist +in the new location). By default the entire directory structure of +C<from> will be copied into C<to_dir>; an optional C<flatten> +parameter will copy into C<to_dir> without doing so. + +Returns the path to the destination file, or C<undef> if nothing +needed to be copied. + +Any directories that need to be created in order to perform the +copying will be automatically created. + +The destination file is set to read-only. If the source file has the +executable bit set, then the destination file will be made executable. + +=item create_build_script() + +[version 0.05] + +Creates an executable script called C<Build> in the current directory +that will be used to execute further user actions. This script is +roughly analogous (in function, not in form) to the Makefile created +by C<ExtUtils::MakeMaker>. This method also creates some temporary +data in a directory called C<_build/>. Both of these will be removed +when the C<realclean> action is performed. + +Among the files created in C<_build/> is a F<_build/prereqs> file +containing the set of prerequisites for this distribution, as a hash +of hashes. This file may be C<eval()>-ed to obtain the authoritative +set of prerequisites, which might be different from the contents of +F<META.yml> (because F<Build.PL> might have set them dynamically). +But fancy developers take heed: do not put any fancy custom runtime +code in the F<_build/prereqs> file, leave it as a static declaration +containing only strings and numbers. Similarly, do not alter the +structure of the internal C<< $self->{properties}{requires} >> (etc.) +data members, because that's where this data comes from. + +=item current_action() + +[version 0.28] + +Returns the name of the currently-running action, such as "build" or +"test". This action is not necessarily the action that was originally +invoked by the user. For example, if the user invoked the "test" +action, current_action() would initially return "test". However, +action "test" depends on action "code", so current_action() will +return "code" while that dependency is being executed. Once that +action has completed, current_action() will again return "test". + +If you need to know the name of the original action invoked by the +user, see L</invoked_action()> below. + +=item depends_on(@actions) + +[version 0.28] + +Invokes the named action or list of actions in sequence. Using this +method is preferred to calling the action explicitly because it +performs some internal record-keeping, and it ensures that the same +action is not invoked multiple times (note: in future versions of +Module::Build it's conceivable that this run-only-once mechanism will +be changed to something more intelligent). + +Note that the name of this method is something of a misnomer; it +should really be called something like +C<invoke_actions_unless_already_invoked()> or something, but for +better or worse (perhaps better!) we were still thinking in +C<make>-like dependency terms when we created this method. + +See also L<dispatch()|/"dispatch($action, %args)">. The main +distinction between the two is that C<depends_on()> is meant to call +an action from inside another action, whereas C<dispatch()> is meant +to set the very top action in motion. + +=item dir_contains($first_dir, $second_dir) + +[version 0.28] + +Returns true if the first directory logically contains the second +directory. This is just a convenience function because C<File::Spec> +doesn't really provide an easy way to figure this out (but +C<Path::Class> does...). + +=item dispatch($action, %args) + +[version 0.03] + +Invokes the build action C<$action>. Optionally, a list of options +and their values can be passed in. This is equivalent to invoking an +action at the command line, passing in a list of options. + +Custom options that have not been registered must be passed in as a +hash reference in a key named "args": + + $build->dispatch('foo', verbose => 1, args => { my_option => 'value' }); + +This method is intended to be used to programmatically invoke build +actions, e.g. by applications controlling Module::Build-based builds +rather than by subclasses. + +See also L<depends_on()|/"depends_on(@actions)">. The main +distinction between the two is that C<depends_on()> is meant to call +an action from inside another action, whereas C<dispatch()> is meant +to set the very top action in motion. + +=item dist_dir() + +[version 0.28] + +Returns the name of the directory that will be created during the +C<dist> action. The name is derived from the C<dist_name> and +C<dist_version> properties. + +=item dist_name() + +[version 0.21] + +Returns the name of the current distribution, as passed to the +C<new()> method in a C<dist_name> or modified C<module_name> +parameter. + +=item dist_version() + +[version 0.21] + +Returns the version of the current distribution, as determined by the +C<new()> method from a C<dist_version>, C<dist_version_from>, or +C<module_name> parameter. + +=item do_system($cmd, @args) + +[version 0.21] + +This is a fairly simple wrapper around Perl's C<system()> built-in +command. Given a command and an array of optional arguments, this +method will print the command to C<STDOUT>, and then execute it using +Perl's C<system()>. It returns true or false to indicate success or +failure (the opposite of how C<system()> works, but more intuitive). + +Note that if you supply a single argument to C<do_system()>, it +will/may be processed by the system's shell, and any special +characters will do their special things. If you supply multiple +arguments, no shell will get involved and the command will be executed +directly. + +=item extra_compiler_flags() + +=item extra_compiler_flags(@flags) + +[version 0.25] + +Set or retrieve the extra compiler flags. Returns an arrayref of flags. + +=item extra_linker_flags() + +=item extra_linker_flags(@flags) + +[version 0.25] + +Set or retrieve the extra linker flags. Returns an arrayref of flags. + +=item feature($name) + +=item feature($name => $value) + +[version 0.26] + +With a single argument, returns true if the given feature is set. +With two arguments, sets the given feature to the given boolean value. +In this context, a "feature" is any optional functionality of an +installed module. For instance, if you write a module that could +optionally support a MySQL or PostgreSQL backend, you might create +features called C<mysql_support> and C<postgres_support>, and set them +to true/false depending on whether the user has the proper databases +installed and configured. + +Features set in this way using the Module::Build object will be +available for querying during the build/test process and after +installation via the generated C<...::ConfigData> module, as +C<< ...::ConfigData->feature($name) >>. + +The C<feature()> and C<config_data()> methods represent +Module::Build's main support for configuration of installed modules. +See also L<Module::Build::Authoring/"SAVING CONFIGURATION INFORMATION">. + +=item fix_shebang_line(@files) + +[version 0.??] + +Modify any "shebang" line in the specified files to use the path to the +perl executable being used for the current build. Files are modified +in-place. The existing shebang line must have a command that contains +"C<perl>"; arguments to the command do not count. In particular, this +means that the use of C<#!/usr/bin/env perl> will not be changed. + +For an explanation of shebang lines, see +L<http://en.wikipedia.org/wiki/Shebang_%28Unix%29>. + +=item have_c_compiler() + +[version 0.21] + +Returns true if the current system seems to have a working C compiler. +We currently determine this by attempting to compile a simple C source +file and reporting whether the attempt was successful. + +=item install_base_relpaths() + +=item install_base_relpaths($type) + +=item install_base_relpaths($type => $path) + +[version 0.28] + +Set or retrieve the relative paths that are appended to +C<install_base> for any installable element. This is useful if you +want to set the relative install path for custom build elements. + +With no argument, it returns a reference to a hash containing all +elements and their respective values. This hash should not be modified +directly; use the multiple argument below form to change values. + +The single argument form returns the value associated with the +element C<$type>. + +The multiple argument form allows you to set the paths for element types. +C<$value> must be a relative path using Unix-like paths. (A series of +directories separated by slashes, e.g. C<foo/bar>.) The return value is a +localized path based on C<$value>. + +Assigning the value C<undef> to an element causes it to be removed. + +=item install_destination($type) + +[version 0.28] + +Returns the directory in which items of type C<$type> (e.g. C<lib>, +C<arch>, C<bin>, or anything else returned by the L</install_types()> +method) will be installed during the C<install> action. Any settings +for C<install_path>, C<install_base>, and C<prefix> are taken into +account when determining the return value. + +=item install_path() + +=item install_path($type) + +=item install_path($type => $path) + +[version 0.28] + +Set or retrieve paths for specific installable elements. This is +useful when you want to examine any explicit install paths specified +by the user on the command line, or if you want to set the install +path for a specific installable element based on another attribute +like C<install_base()>. + +With no argument, it returns a reference to a hash containing all +elements and their respective values. This hash should not be modified +directly; use the multiple argument below form to change values. + +The single argument form returns the value associated with the +element C<$type>. + +The multiple argument form allows you to set the paths for element types. +The supplied C<$path> should be an absolute path to install elements +of C<$type>. The return value is C<$path>. + +Assigning the value C<undef> to an element causes it to be removed. + +=item install_types() + +[version 0.28] + +Returns a list of installable types that this build knows about. +These types each correspond to the name of a directory in F<blib/>, +and the list usually includes items such as C<lib>, C<arch>, C<bin>, +C<script>, C<libdoc>, C<bindoc>, and if HTML documentation is to be +built, C<libhtml> and C<binhtml>. Other user-defined types may also +exist. + +=item invoked_action() + +[version 0.28] + +This is the name of the original action invoked by the user. This +value is set when the user invokes F<Build.PL>, the F<Build> script, +or programmatically through the L<dispatch()|/"dispatch($action, %args)"> +method. It does not change as sub-actions are executed as +dependencies are evaluated. + +To get the name of the currently executing dependency, see +L</current_action()> above. + +=item notes() + +=item notes($key) + +=item notes($key => $value) + +[version 0.20] + +The C<notes()> value allows you to store your own persistent +information about the build, and to share that information among +different entities involved in the build. See the example in the +C<current()> method. + +The C<notes()> method is essentially a glorified hash access. With no +arguments, C<notes()> returns the entire hash of notes. With one argument, +C<notes($key)> returns the value associated with the given key. With two +arguments, C<notes($key, $value)> sets the value associated with the given key +to C<$value> and returns the new value. + +The lifetime of the C<notes> data is for "a build" - that is, the +C<notes> hash is created when C<perl Build.PL> is run (or when the +C<new()> method is run, if the Module::Build Perl API is being used +instead of called from a shell), and lasts until C<perl Build.PL> is +run again or the C<clean> action is run. + +=item orig_dir() + +[version 0.28] + +Returns a string containing the working directory that was in effect +before the F<Build> script chdir()-ed into the C<base_dir>. This +might be useful for writing wrapper tools that might need to chdir() +back out. + +=item os_type() + +[version 0.04] + +If you're subclassing Module::Build and some code needs to alter its +behavior based on the current platform, you may only need to know +whether you're running on Windows, Unix, MacOS, VMS, etc., and not the +fine-grained value of Perl's C<$^O> variable. The C<os_type()> method +will return a string like C<Windows>, C<Unix>, C<MacOS>, C<VMS>, or +whatever is appropriate. If you're running on an unknown platform, it +will return C<undef> - there shouldn't be many unknown platforms +though. + +=item is_vmsish() + +=item is_windowsish() + +=item is_unixish() + +Convenience functions that return a boolean value indicating whether +this platform behaves respectively like VMS, Windows, or Unix. For +arbitrary reasons other platforms don't get their own such functions, +at least not yet. + + +=item prefix_relpaths() + +=item prefix_relpaths($installdirs) + +=item prefix_relpaths($installdirs, $type) + +=item prefix_relpaths($installdirs, $type => $path) + +[version 0.28] + +Set or retrieve the relative paths that are appended to C<prefix> for +any installable element. This is useful if you want to set the +relative install path for custom build elements. + +With no argument, it returns a reference to a hash containing all +elements and their respective values as defined by the current +C<installdirs> setting. + +With a single argument, it returns a reference to a hash containing +all elements and their respective values as defined by +C<$installdirs>. + +The hash returned by the above calls should not be modified directly; +use the three-argument below form to change values. + +The two argument form returns the value associated with the +element C<$type>. + +The multiple argument form allows you to set the paths for element types. +C<$value> must be a relative path using Unix-like paths. (A series of +directories separated by slashes, e.g. C<foo/bar>.) The return value is a +localized path based on C<$value>. + +Assigning the value C<undef> to an element causes it to be removed. + +=item get_metadata() + +[version 0.36] + +This method returns a hash reference of metadata that can be used to create a +YAML datastream. It is provided for authors to override or customize the fields +of F<META.yml>. E.g. + + package My::Builder; + use base 'Module::Build'; + + sub get_metadata { + my $self, @args = @_; + my $data = $self->SUPER::get_metadata(@args); + $data->{custom_field} = 'foo'; + return $data; + } + +Valid arguments include: + +=over + +=item * + +C<fatal> -- indicates whether missing required +metadata fields should be a fatal error or not. For META creation, it +generally should, but for MYMETA creation for end-users, it should not be +fatal. + +=item * + +C<auto> -- indicates whether any necessary configure_requires should be +automatically added. This is used in META creation. + +=back + +This method is a wrapper around the old prepare_metadata API now that we +no longer use YAML::Node to hold metadata. + +=item prepare_metadata() [deprecated] + +[version 0.36] + +[Deprecated] As of 0.36, authors should use C<get_metadata> instead. This +method is preserved for backwards compatibility only. + +It takes three positional arguments: a hashref (to which metadata will be +added), an optional arrayref (to which metadata keys will be added in order if +the arrayref exists), and a hashref of arguments (as provided to get_metadata). +The latter argument is new as of 0.36. Earlier versions are always fatal on +errors. + +Prior to version 0.36, this method took a YAML::Node as an argument to hold +assembled metadata. + +=item prereq_failures() + +[version 0.11] + +Returns a data structure containing information about any failed +prerequisites (of any of the types described above), or C<undef> if +all prerequisites are met. + +The data structure returned is a hash reference. The top level keys +are the type of prerequisite failed, one of "requires", +"build_requires", "conflicts", or "recommends". The associated values +are hash references whose keys are the names of required (or +conflicting) modules. The associated values of those are hash +references indicating some information about the failure. For example: + + { + have => '0.42', + need => '0.59', + message => 'Version 0.42 is installed, but we need version 0.59', + } + +or + + { + have => '<none>', + need => '0.59', + message => 'Prerequisite Foo isn't installed', + } + +This hash has the same structure as the hash returned by the +C<check_installed_status()> method, except that in the case of +"conflicts" dependencies we change the "need" key to "conflicts" and +construct a proper message. + +Examples: + + # Check a required dependency on Foo::Bar + if ( $build->prereq_failures->{requires}{Foo::Bar} ) { ... + + # Check whether there were any failures + if ( $build->prereq_failures ) { ... + + # Show messages for all failures + my $failures = $build->prereq_failures; + while (my ($type, $list) = each %$failures) { + while (my ($name, $hash) = each %$list) { + print "Failure for $name: $hash->{message}\n"; + } + } + +=item prereq_data() + +[version 0.32] + +Returns a reference to a hash describing all prerequisites. The keys of the +hash will be the various prerequisite types ('requires', 'build_requires', +'test_requires', 'configure_requires', 'recommends', or 'conflicts') and the values will be +references to hashes of module names and version numbers. Only prerequisites +types that are defined will be included. The C<prereq_data> action is just a +thin wrapper around the C<prereq_data()> method and dumps the hash as a string +that can be loaded using C<eval()>. + +=item prereq_report() + +[version 0.28] + +Returns a human-readable (table-form) string showing all +prerequisites, the versions required, and the versions actually +installed. This can be useful for reviewing the configuration of your +system prior to a build, or when compiling data to send for a bug +report. The C<prereq_report> action is just a thin wrapper around the +C<prereq_report()> method. + +=item prompt($message, $default) + +[version 0.12] + +Asks the user a question and returns their response as a string. The +first argument specifies the message to display to the user (for +example, C<"Where do you keep your money?">). The second argument, +which is optional, specifies a default answer (for example, +C<"wallet">). The user will be asked the question once. + +If C<prompt()> detects that it is not running interactively and there +is nothing on STDIN or if the PERL_MM_USE_DEFAULT environment variable +is set to true, the $default will be used without prompting. + +To prevent automated processes from blocking, the user must either set +PERL_MM_USE_DEFAULT or attach something to STDIN (this can be a +pipe/file containing a scripted set of answers or /dev/null.) + +If no $default is provided an empty string will be used instead. In +non-interactive mode, the absence of $default is an error (though +explicitly passing C<undef()> as the default is valid as of 0.27.) + +This method may be called as a class or object method. + +=item recommends() + +[version 0.21] + +Returns a hash reference indicating the C<recommends> prerequisites +that were passed to the C<new()> method. + +=item requires() + +[version 0.21] + +Returns a hash reference indicating the C<requires> prerequisites that +were passed to the C<new()> method. + +=item rscan_dir($dir, $pattern) + +[version 0.28] + +Uses C<File::Find> to traverse the directory C<$dir>, returning a +reference to an array of entries matching C<$pattern>. C<$pattern> +may either be a regular expression (using C<qr//> or just a plain +string), or a reference to a subroutine that will return true for +wanted entries. If C<$pattern> is not given, all entries will be +returned. + +Examples: + + # All the *.pm files in lib/ + $m->rscan_dir('lib', qr/\.pm$/) + + # All the files in blib/ that aren't *.html files + $m->rscan_dir('blib', sub {-f $_ and not /\.html$/}); + + # All the files in t/ + $m->rscan_dir('t'); + +=item runtime_params() + +=item runtime_params($key) + +[version 0.28] + +The C<runtime_params()> method stores the values passed on the command line +for valid properties (that is, any command line options for which +C<valid_property()> returns a true value). The value on the command line may +override the default value for a property, as well as any value specified in a +call to C<new()>. This allows you to programmatically tell if C<perl Build.PL> +or any execution of C<./Build> had command line options specified that +override valid properties. + +The C<runtime_params()> method is essentially a glorified read-only hash. With +no arguments, C<runtime_params()> returns the entire hash of properties +specified on the command line. With one argument, C<runtime_params($key)> +returns the value associated with the given key. + +The lifetime of the C<runtime_params> data is for "a build" - that is, the +C<runtime_params> hash is created when C<perl Build.PL> is run (or when the +C<new()> method is called, if the Module::Build Perl API is being used instead +of called from a shell), and lasts until C<perl Build.PL> is run again or the +C<clean> action is run. + +=item script_files() + +[version 0.18] + +Returns a hash reference whose keys are the perl script files to be +installed, if any. This corresponds to the C<script_files> parameter to the +C<new()> method. With an optional argument, this parameter may be set +dynamically. + +For backward compatibility, the C<scripts()> method does exactly the +same thing as C<script_files()>. C<scripts()> is deprecated, but it +will stay around for several versions to give people time to +transition. + +=item up_to_date($source_file, $derived_file) + +=item up_to_date(\@source_files, \@derived_files) + +[version 0.20] + +This method can be used to compare a set of source files to a set of +derived files. If any of the source files are newer than any of the +derived files, it returns false. Additionally, if any of the derived +files do not exist, it returns false. Otherwise it returns true. + +The arguments may be either a scalar or an array reference of file +names. + +=item y_n($message, $default) + +[version 0.12] + +Asks the user a yes/no question using C<prompt()> and returns true or +false accordingly. The user will be asked the question repeatedly +until they give an answer that looks like "yes" or "no". + +The first argument specifies the message to display to the user (for +example, C<"Shall I invest your money for you?">), and the second +argument specifies the default answer (for example, C<"y">). + +Note that the default is specified as a string like C<"y"> or C<"n">, +and the return value is a Perl boolean value like 1 or 0. I thought +about this for a while and this seemed like the most useful way to do +it. + +This method may be called as a class or object method. + +=back + + +=head2 Autogenerated Accessors + +In addition to the aforementioned methods, there are also some get/set +accessor methods for the following properties: + +=over 4 + +=item PL_files() + +=item allow_mb_mismatch() + +=item allow_pureperl() + +=item auto_configure_requires() + +=item autosplit() + +=item base_dir() + +=item bindoc_dirs() + +=item blib() + +=item build_bat() + +=item build_class() + +=item build_elements() + +=item build_requires() + +=item build_script() + +=item bundle_inc() + +=item bundle_inc_preload() + +=item c_source() + +=item config_dir() + +=item configure_requires() + +=item conflicts() + +=item cpan_client() + +=item create_license() + +=item create_makefile_pl() + +=item create_packlist() + +=item create_readme() + +=item debug() + +=item debugger() + +=item destdir() + +=item dynamic_config() + +=item extra_manify_args() + +=item get_options() + +=item html_css() + +=item include_dirs() + +=item install_base() + +=item installdirs() + +=item libdoc_dirs() + +=item license() + +=item magic_number() + +=item mb_version() + +=item meta_add() + +=item meta_merge() + +=item metafile() + +=item metafile2() + +=item module_name() + +=item mymetafile() + +=item mymetafile2() + +=item needs_compiler() + +=item orig_dir() + +=item perl() + +=item pm_files() + +=item pod_files() + +=item pollute() + +=item prefix() + +=item prereq_action_types() + +=item program_name() + +=item pureperl_only() + +=item quiet() + +=item recommends() + +=item recurse_into() + +=item recursive_test_files() + +=item requires() + +=item scripts() + +=item sign() + +=item tap_harness_args() + +=item test_file_exts() + +=item test_requires() + +=item use_rcfile() + +=item use_tap_harness() + +=item verbose() + +=item xs_files() + +=back + +=head1 MODULE METADATA + +If you would like to add other useful metadata, C<Module::Build> +supports this with the C<meta_add> and C<meta_merge> arguments to +L</new()>. The authoritative list of supported metadata can be found at +L<CPAN::Meta::Spec> but for convenience - here are a few of the more useful ones: + +=over 4 + +=item keywords + +For describing the distribution using keyword (or "tags") in order to +make CPAN.org indexing and search more efficient and useful. + +=item resources + +A list of additional resources available for users of the +distribution. This can include links to a homepage on the web, a +bug tracker, the repository location, and even a subscription page for the +distribution mailing list. + +=back + + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + + +=head1 COPYRIGHT + +Copyright (c) 2001-2006 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + + +=head1 SEE ALSO + +perl(1), L<Module::Build>(3), L<Module::Build::Authoring>(3), +L<Module::Build::Cookbook>(3), L<ExtUtils::MakeMaker>(3) + +F<META.yml> Specification: +L<CPAN::Meta::Spec> + +=cut diff --git a/lib/Module/Build/Authoring.pod b/lib/Module/Build/Authoring.pod new file mode 100644 index 0000000..a32b31e --- /dev/null +++ b/lib/Module/Build/Authoring.pod @@ -0,0 +1,326 @@ +=head1 NAME + +Module::Build::Authoring - Authoring Module::Build modules + +=head1 DESCRIPTION + +When creating a C<Build.PL> script for a module, something like the +following code will typically be used: + + use Module::Build; + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + license => 'perl', + requires => { + 'perl' => '5.6.1', + 'Some::Module' => '1.23', + 'Other::Module' => '>= 1.2, != 1.5, < 2.0', + }, + ); + $build->create_build_script; + +A simple module could get away with something as short as this for its +C<Build.PL> script: + + use Module::Build; + Module::Build->new( + module_name => 'Foo::Bar', + license => 'perl', + )->create_build_script; + +The model used by C<Module::Build> is a lot like the C<MakeMaker> +metaphor, with the following correspondences: + + In Module::Build In ExtUtils::MakeMaker + --------------------------- ------------------------ + Build.PL (initial script) Makefile.PL (initial script) + Build (a short perl script) Makefile (a long Makefile) + _build/ (saved state info) various config text in the Makefile + +Any customization can be done simply by subclassing C<Module::Build> +and adding a method called (for example) C<ACTION_test>, overriding +the default 'test' action. You could also add a method called +C<ACTION_whatever>, and then you could perform the action C<Build +whatever>. + +For information on providing compatibility with +C<ExtUtils::MakeMaker>, see L<Module::Build::Compat> and +L<http://www.makemaker.org/wiki/index.cgi?ModuleBuildConversionGuide>. + + +=head1 STRUCTURE + +Module::Build creates a class hierarchy conducive to customization. +Here is the parent-child class hierarchy in classy ASCII art: + + /--------------------\ + | Your::Parent | (If you subclass Module::Build) + \--------------------/ + | + | + /--------------------\ (Doesn't define any functionality + | Module::Build | of its own - just figures out what + \--------------------/ other modules to load.) + | + | + /-----------------------------------\ (Some values of $^O may + | Module::Build::Platform::$^O | define specialized functionality. + \-----------------------------------/ Otherwise it's ...::Default, a + | pass-through class.) + | + /--------------------------\ + | Module::Build::Base | (Most of the functionality of + \--------------------------/ Module::Build is defined here.) + + +=head1 SUBCLASSING + +Right now, there are two ways to subclass Module::Build. The first +way is to create a regular module (in a C<.pm> file) that inherits +from Module::Build, and use that module's class instead of using +Module::Build directly: + + ------ in Build.PL: ---------- + #!/usr/bin/perl + + use lib q(/nonstandard/library/path); + use My::Builder; # Or whatever you want to call it + + my $build = My::Builder->new + ( + module_name => 'Foo::Bar', # All the regular args... + license => 'perl', + dist_author => 'A N Other <me@here.net.au>', + requires => { Carp => 0 } + ); + $build->create_build_script; + +This is relatively straightforward, and is the best way to do things +if your My::Builder class contains lots of code. The +C<create_build_script()> method will ensure that the current value of +C<@INC> (including the C</nonstandard/library/path>) is propagated to +the Build script, so that My::Builder can be found when running build +actions. If you find that you need to C<chdir> into a different directories +in your subclass methods or actions, be sure to always return to the original +directory (available via the C<base_dir()> method) before returning control +to the parent class. This is important to avoid data serialization problems. + +For very small additions, Module::Build provides a C<subclass()> +method that lets you subclass Module::Build more conveniently, without +creating a separate file for your module: + + ------ in Build.PL: ---------- + #!/usr/bin/perl + + use Module::Build; + my $class = Module::Build->subclass + ( + class => 'My::Builder', + code => q{ + sub ACTION_foo { + print "I'm fooing to death!\n"; + } + }, + ); + + my $build = $class->new + ( + module_name => 'Foo::Bar', # All the regular args... + license => 'perl', + dist_author => 'A N Other <me@here.net.au>', + requires => { Carp => 0 } + ); + $build->create_build_script; + +Behind the scenes, this actually does create a C<.pm> file, since the +code you provide must persist after Build.PL is run if it is to be +very useful. + +See also the documentation for the L<Module::Build::API/"subclass()"> +method. + + +=head1 PREREQUISITES + +=head2 Types of prerequisites + +To specify what versions of other modules are used by this +distribution, several types of prerequisites can be defined with the +following parameters: + +=over 3 + +=item configure_requires + +Items that must be installed I<before> configuring this distribution +(i.e. before running the F<Build.PL> script). This might be a +specific minimum version of C<Module::Build> or any other module the +F<Build.PL> needs in order to do its stuff. Clients like C<CPAN.pm> +or C<CPANPLUS> will be expected to pick C<configure_requires> out of the +F<META.yml> file and install these items before running the +C<Build.PL>. + +If no configure_requires is specified, the current version of Module::Build +is automatically added to configure_requires. + +=item build_requires + +Items that are necessary for building and testing this distribution, +but aren't necessary after installation. This can help users who only +want to install these items temporarily. It also helps reduce the +size of the CPAN dependency graph if everything isn't smooshed into +C<requires>. + +=item requires + +Items that are necessary for basic functioning. + +=item recommends + +Items that are recommended for enhanced functionality, but there are +ways to use this distribution without having them installed. You +might also think of this as "can use" or "is aware of" or "changes +behavior in the presence of". + +=item test_requires + +Items that are necessary for testing. + +=item conflicts + +Items that can cause problems with this distribution when installed. +This is pretty rare. + +=back + +=head2 Format of prerequisites + +The prerequisites are given in a hash reference, where the keys are +the module names and the values are version specifiers: + + requires => { + Foo::Module => '2.4', + Bar::Module => 0, + Ken::Module => '>= 1.2, != 1.5, < 2.0', + perl => '5.6.0' + }, + +The above four version specifiers have different effects. The value +C<'2.4'> means that B<at least> version 2.4 of C<Foo::Module> must be +installed. The value C<0> means that B<any> version of C<Bar::Module> +is acceptable, even if C<Bar::Module> doesn't define a version. The +more verbose value C<'E<gt>= 1.2, != 1.5, E<lt> 2.0'> means that +C<Ken::Module>'s version must be B<at least> 1.2, B<less than> 2.0, +and B<not equal to> 1.5. The list of criteria is separated by commas, +and all criteria must be satisfied. + +A special C<perl> entry lets you specify the versions of the Perl +interpreter that are supported by your module. The same version +dependency-checking semantics are available, except that we also +understand perl's new double-dotted version numbers. + +=head2 XS Extensions + +Modules which need to compile XS code should list C<ExtUtils::CBuilder> +as a C<build_requires> element. + + +=head1 SAVING CONFIGURATION INFORMATION + +Module::Build provides a very convenient way to save configuration +information that your installed modules (or your regression tests) can +access. If your Build process calls the C<feature()> or +C<config_data()> methods, then a C<Foo::Bar::ConfigData> module will +automatically be created for you, where C<Foo::Bar> is the +C<module_name> parameter as passed to C<new()>. This module provides +access to the data saved by these methods, and a way to update the +values. There is also a utility script called C<config_data> +distributed with Module::Build that provides a command line interface +to this same functionality. See also the generated +C<Foo::Bar::ConfigData> documentation, and the C<config_data> +script's documentation, for more information. + + +=head1 STARTING MODULE DEVELOPMENT + +When starting development on a new module, it's rarely worth your time +to create a tree of all the files by hand. Some automatic +module-creators are available: the oldest is C<h2xs>, which has +shipped with perl itself for a long time. Its name reflects the fact +that modules were originally conceived of as a way to wrap up a C +library (thus the C<h> part) into perl extensions (thus the C<xs> +part). + +These days, C<h2xs> has largely been superseded by modules like +C<ExtUtils::ModuleMaker>, and C<Module::Starter>. They have varying +degrees of support for C<Module::Build>. + + +=head1 AUTOMATION + +One advantage of Module::Build is that since it's implemented as Perl +methods, you can invoke these methods directly if you want to install +a module non-interactively. For instance, the following Perl script +will invoke the entire build/install procedure: + + my $build = Module::Build->new(module_name => 'MyModule'); + $build->dispatch('build'); + $build->dispatch('test'); + $build->dispatch('install'); + +If any of these steps encounters an error, it will throw a fatal +exception. + +You can also pass arguments as part of the build process: + + my $build = Module::Build->new(module_name => 'MyModule'); + $build->dispatch('build'); + $build->dispatch('test', verbose => 1); + $build->dispatch('install', sitelib => '/my/secret/place/'); + +Building and installing modules in this way skips creating the +C<Build> script. + + +=head1 MIGRATION + +Note that if you want to provide both a F<Makefile.PL> and a +F<Build.PL> for your distribution, you probably want to add the +following to C<WriteMakefile> in your F<Makefile.PL> so that C<MakeMaker> +doesn't try to run your F<Build.PL> as a normal F<.PL> file: + + PL_FILES => {}, + +You may also be interested in looking at the C<Module::Build::Compat> +module, which can automatically create various kinds of F<Makefile.PL> +compatibility layers. + + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +Development questions, bug reports, and patches should be sent to the +Module-Build mailing list at <module-build@perl.org>. + +Bug reports are also welcome at +<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Build>. + +The latest development version is available from the Git +repository at <https://github.com/Perl-Toolchain-Gang/Module-Build> + + +=head1 SEE ALSO + +perl(1), L<Module::Build>(3), L<Module::Build::API>(3), +L<Module::Build::Cookbook>(3), L<ExtUtils::MakeMaker>(3), L<YAML>(3) + +F<META.yml> Specification: +L<CPAN::Meta::Spec> + +L<http://www.dsmit.com/cons/> + +L<http://search.cpan.org/dist/PerlBuildSystem/> + +=cut diff --git a/lib/Module/Build/Base.pm b/lib/Module/Build/Base.pm new file mode 100644 index 0000000..1cbc61e --- /dev/null +++ b/lib/Module/Build/Base.pm @@ -0,0 +1,5688 @@ +# -*- mode: cperl; tab-width: 8; indent-tabs-mode: nil; basic-offset: 2 -*- +# vim:ts=8:sw=2:et:sta:sts=2 +package Module::Build::Base; + +use 5.006; +use strict; +use warnings; + +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; + +use Carp; +use Cwd (); +use File::Copy (); +use File::Find (); +use File::Path (); +use File::Basename (); +use File::Spec 0.82 (); +use File::Compare (); +use Module::Build::Dumper (); +use Text::ParseWords (); + +use Module::Metadata; +use Module::Build::Notes; +use Module::Build::Config; +use version; + + +#################### Constructors ########################### +sub new { + my $self = shift()->_construct(@_); + + $self->{invoked_action} = $self->{action} ||= 'Build_PL'; + $self->cull_args(@ARGV); + + die "Too early to specify a build action '$self->{action}'. Do 'Build $self->{action}' instead.\n" + if $self->{action} && $self->{action} ne 'Build_PL'; + + $self->check_manifest; + $self->auto_require; + + # All checks must run regardless if one fails, so no short circuiting! + if( grep { !$_ } $self->check_prereq, $self->check_autofeatures ) { + $self->log_warn(<<EOF); + +ERRORS/WARNINGS FOUND IN PREREQUISITES. You may wish to install the versions +of the modules indicated above before proceeding with this installation + +EOF + unless ( + $self->dist_name eq 'Module-Build' || + $ENV{PERL5_CPANPLUS_IS_RUNNING} || $ENV{PERL5_CPAN_IS_RUNNING} + ) { + $self->log_warn( + "Run 'Build installdeps' to install missing prerequisites.\n\n" + ); + } + } + + # record for later use in resume; + $self->{properties}{_added_to_INC} = [ $self->_added_to_INC ]; + + $self->set_bundle_inc; + + $self->dist_name; + $self->dist_version; + $self->release_status; + $self->_guess_module_name unless $self->module_name; + + $self->_find_nested_builds; + + return $self; +} + +sub resume { + my $package = shift; + my $self = $package->_construct(@_); + $self->read_config; + + my @added_earlier = @{ $self->{properties}{_added_to_INC} || [] }; + + @INC = ($self->_added_to_INC, @added_earlier, $self->_default_INC); + + # If someone called Module::Build->current() or + # Module::Build->new_from_context() and the correct class to use is + # actually a *subclass* of Module::Build, we may need to load that + # subclass here and re-delegate the resume() method to it. + unless ( $package->isa($self->build_class) ) { + my $build_class = $self->build_class; + my $config_dir = $self->config_dir || '_build'; + my $build_lib = File::Spec->catdir( $config_dir, 'lib' ); + unshift( @INC, $build_lib ); + unless ( $build_class->can('new') ) { + eval "require $build_class; 1" or die "Failed to re-load '$build_class': $@"; + } + return $build_class->resume(@_); + } + + unless ($self->_perl_is_same($self->{properties}{perl})) { + my $perl = $self->find_perl_interpreter; + die(<<"DIEFATAL"); +* FATAL ERROR: Perl interpreter mismatch. Configuration was initially + created with '$self->{properties}{perl}' + but we are now using '$perl'. You must + run 'Build realclean' or 'make realclean' and re-configure. +DIEFATAL + } + + $self->cull_args(@ARGV); + + unless ($self->allow_mb_mismatch) { + my $mb_version = $Module::Build::VERSION; + if ( $mb_version ne $self->{properties}{mb_version} ) { + $self->log_warn(<<"MISMATCH"); +* WARNING: Configuration was initially created with Module::Build + version '$self->{properties}{mb_version}' but we are now using version '$mb_version'. + If errors occur, you must re-run the Build.PL or Makefile.PL script. +MISMATCH + } + } + + $self->{invoked_action} = $self->{action} ||= 'build'; + + return $self; +} + +sub new_from_context { + my ($package, %args) = @_; + + $package->run_perl_script('Build.PL',[],[$package->unparse_args(\%args)]); + return $package->resume; +} + +sub current { + # hmm, wonder what the right thing to do here is + local @ARGV; + return shift()->resume; +} + +sub _construct { + my ($package, %input) = @_; + + my $args = delete $input{args} || {}; + my $config = delete $input{config} || {}; + + my $self = bless { + args => {%$args}, + config => Module::Build::Config->new(values => $config), + properties => { + base_dir => $package->cwd, + mb_version => $Module::Build::VERSION, + %input, + }, + phash => {}, + stash => {}, # temporary caching, not stored in _build + }, $package; + + $self->_set_defaults; + my ($p, $ph) = ($self->{properties}, $self->{phash}); + + foreach (qw(notes config_data features runtime_params cleanup auto_features)) { + my $file = File::Spec->catfile($self->config_dir, $_); + $ph->{$_} = Module::Build::Notes->new(file => $file); + $ph->{$_}->restore if -e $file; + if (exists $p->{$_}) { + my $vals = delete $p->{$_}; + while (my ($k, $v) = each %$vals) { + $self->$_($k, $v); + } + } + } + + # The following warning could be unnecessary if the user is running + # an embedded perl, but there aren't too many of those around, and + # embedded perls aren't usually used to install modules, and the + # installation process sometimes needs to run external scripts + # (e.g. to run tests). + $p->{perl} = $self->find_perl_interpreter + or $self->log_warn("Warning: Can't locate your perl binary"); + + my $blibdir = sub { File::Spec->catdir($p->{blib}, @_) }; + $p->{bindoc_dirs} ||= [ $blibdir->("script") ]; + $p->{libdoc_dirs} ||= [ $blibdir->("lib"), $blibdir->("arch") ]; + + $p->{dist_author} = [ $p->{dist_author} ] if defined $p->{dist_author} and not ref $p->{dist_author}; + + # Synonyms + $p->{requires} = delete $p->{prereq} if defined $p->{prereq}; + $p->{script_files} = delete $p->{scripts} if defined $p->{scripts}; + + # Convert to from shell strings to arrays + for ('extra_compiler_flags', 'extra_linker_flags') { + $p->{$_} = [ $self->split_like_shell($p->{$_}) ] if exists $p->{$_}; + } + + # Convert to arrays + for ('include_dirs') { + $p->{$_} = [ $p->{$_} ] if exists $p->{$_} && !ref $p->{$_} + } + + $self->add_to_cleanup( @{delete $p->{add_to_cleanup}} ) + if $p->{add_to_cleanup}; + + return $self; +} + +################## End constructors ######################### + +sub log_info { + my $self = shift; + print @_ if ref($self) && ( $self->verbose || ! $self->quiet ); +} +sub log_verbose { + my $self = shift; + print @_ if ref($self) && $self->verbose; +} +sub log_debug { + my $self = shift; + print @_ if ref($self) && $self->debug; +} + +sub log_warn { + # Try to make our call stack invisible + shift; + if (@_ and $_[-1] !~ /\n$/) { + my (undef, $file, $line) = caller(); + warn @_, " at $file line $line.\n"; + } else { + warn @_; + } +} + + +# install paths must be generated when requested to be sure all changes +# to config (from various sources) are included +sub _default_install_paths { + my $self = shift; + my $c = $self->{config}; + my $p = {}; + + my @libstyle = $c->get('installstyle') ? + File::Spec->splitdir($c->get('installstyle')) : qw(lib perl5); + my $arch = $c->get('archname'); + my $version = $c->get('version'); + + my $bindoc = $c->get('installman1dir') || undef; + my $libdoc = $c->get('installman3dir') || undef; + + my $binhtml = $c->get('installhtml1dir') || $c->get('installhtmldir') || undef; + my $libhtml = $c->get('installhtml3dir') || $c->get('installhtmldir') || undef; + + $p->{install_sets} = + { + core => { + lib => $c->get('installprivlib'), + arch => $c->get('installarchlib'), + bin => $c->get('installbin'), + script => $c->get('installscript'), + bindoc => $bindoc, + libdoc => $libdoc, + binhtml => $binhtml, + libhtml => $libhtml, + }, + site => { + lib => $c->get('installsitelib'), + arch => $c->get('installsitearch'), + bin => $c->get('installsitebin') || $c->get('installbin'), + script => $c->get('installsitescript') || + $c->get('installsitebin') || $c->get('installscript'), + bindoc => $c->get('installsiteman1dir') || $bindoc, + libdoc => $c->get('installsiteman3dir') || $libdoc, + binhtml => $c->get('installsitehtml1dir') || $binhtml, + libhtml => $c->get('installsitehtml3dir') || $libhtml, + }, + vendor => { + lib => $c->get('installvendorlib'), + arch => $c->get('installvendorarch'), + bin => $c->get('installvendorbin') || $c->get('installbin'), + script => $c->get('installvendorscript') || + $c->get('installvendorbin') || $c->get('installscript'), + bindoc => $c->get('installvendorman1dir') || $bindoc, + libdoc => $c->get('installvendorman3dir') || $libdoc, + binhtml => $c->get('installvendorhtml1dir') || $binhtml, + libhtml => $c->get('installvendorhtml3dir') || $libhtml, + }, + }; + + $p->{original_prefix} = + { + core => $c->get('installprefixexp') || $c->get('installprefix') || + $c->get('prefixexp') || $c->get('prefix') || '', + site => $c->get('siteprefixexp'), + vendor => $c->get('usevendorprefix') ? $c->get('vendorprefixexp') : '', + }; + $p->{original_prefix}{site} ||= $p->{original_prefix}{core}; + + # Note: you might be tempted to use $Config{installstyle} here + # instead of hard-coding lib/perl5, but that's been considered and + # (at least for now) rejected. `perldoc Config` has some wisdom + # about it. + $p->{install_base_relpaths} = + { + lib => ['lib', 'perl5'], + arch => ['lib', 'perl5', $arch], + bin => ['bin'], + script => ['bin'], + bindoc => ['man', 'man1'], + libdoc => ['man', 'man3'], + binhtml => ['html'], + libhtml => ['html'], + }; + + $p->{prefix_relpaths} = + { + core => { + lib => [@libstyle], + arch => [@libstyle, $version, $arch], + bin => ['bin'], + script => ['bin'], + bindoc => ['man', 'man1'], + libdoc => ['man', 'man3'], + binhtml => ['html'], + libhtml => ['html'], + }, + vendor => { + lib => [@libstyle], + arch => [@libstyle, $version, $arch], + bin => ['bin'], + script => ['bin'], + bindoc => ['man', 'man1'], + libdoc => ['man', 'man3'], + binhtml => ['html'], + libhtml => ['html'], + }, + site => { + lib => [@libstyle, 'site_perl'], + arch => [@libstyle, 'site_perl', $version, $arch], + bin => ['bin'], + script => ['bin'], + bindoc => ['man', 'man1'], + libdoc => ['man', 'man3'], + binhtml => ['html'], + libhtml => ['html'], + }, + }; + return $p +} + +sub _find_nested_builds { + my $self = shift; + my $r = $self->recurse_into or return; + + my ($file, @r); + if (!ref($r) && $r eq 'auto') { + local *DH; + opendir DH, $self->base_dir + or die "Can't scan directory " . $self->base_dir . " for nested builds: $!"; + while (defined($file = readdir DH)) { + my $subdir = File::Spec->catdir( $self->base_dir, $file ); + next unless -d $subdir; + push @r, $subdir if -e File::Spec->catfile( $subdir, 'Build.PL' ); + } + } + + $self->recurse_into(\@r); +} + +sub cwd { + return Cwd::cwd(); +} + +sub _quote_args { + # Returns a string that can become [part of] a command line with + # proper quoting so that the subprocess sees this same list of args. + my ($self, @args) = @_; + + my @quoted; + + for (@args) { + if ( /^[^\s*?!\$<>;\\|'"\[\]\{\}]+$/ ) { + # Looks pretty safe + push @quoted, $_; + } else { + # XXX this will obviously have to improve - is there already a + # core module lying around that does proper quoting? + s/('+)/'"$1"'/g; + push @quoted, qq('$_'); + } + } + + return join " ", @quoted; +} + +sub _backticks { + my ($self, @cmd) = @_; + if ($self->have_forkpipe) { + local *FH; + my $pid = open *FH, "-|"; + if ($pid) { + return wantarray ? <FH> : join '', <FH>; + } else { + die "Can't execute @cmd: $!\n" unless defined $pid; + exec { $cmd[0] } @cmd; + } + } else { + my $cmd = $self->_quote_args(@cmd); + return `$cmd`; + } +} + +# Tells us whether the construct open($fh, '-|', @command) is +# supported. It would probably be better to dynamically sense this. +sub have_forkpipe { 1 } + +# Determine whether a given binary is the same as the perl +# (configuration) that started this process. +sub _perl_is_same { + my ($self, $perl) = @_; + + my @cmd = ($perl); + + # When run from the perl core, @INC will include the directories + # where perl is yet to be installed. We need to reference the + # absolute path within the source distribution where it can find + # it's Config.pm This also prevents us from picking up a Config.pm + # from a different configuration that happens to be already + # installed in @INC. + if ($ENV{PERL_CORE}) { + push @cmd, '-I' . File::Spec->catdir(File::Basename::dirname($perl), 'lib'); + } + + push @cmd, qw(-MConfig=myconfig -e print -e myconfig); + return $self->_backticks(@cmd) eq Config->myconfig; +} + +# cache _discover_perl_interpreter() results +{ + my $known_perl; + sub find_perl_interpreter { + my $self = shift; + + return $known_perl if defined($known_perl); + return $known_perl = $self->_discover_perl_interpreter; + } +} + +# Returns the absolute path of the perl interpreter used to invoke +# this process. The path is derived from $^X or $Config{perlpath}. On +# some platforms $^X contains the complete absolute path of the +# interpreter, on other it may contain a relative path, or simply +# 'perl'. This can also vary depending on whether a path was supplied +# when perl was invoked. Additionally, the value in $^X may omit the +# executable extension on platforms that use one. It's a fatal error +# if the interpreter can't be found because it can result in undefined +# behavior by routines that depend on it (generating errors or +# invoking the wrong perl.) +sub _discover_perl_interpreter { + my $proto = shift; + my $c = ref($proto) ? $proto->{config} : 'Module::Build::Config'; + + my $perl = $^X; + my $perl_basename = File::Basename::basename($perl); + + my @potential_perls; + + # Try 1, Check $^X for absolute path + push( @potential_perls, $perl ) + if File::Spec->file_name_is_absolute($perl); + + # Try 2, Check $^X for a valid relative path + my $abs_perl = File::Spec->rel2abs($perl); + push( @potential_perls, $abs_perl ); + + # Try 3, Last ditch effort: These two option use hackery to try to locate + # a suitable perl. The hack varies depending on whether we are running + # from an installed perl or an uninstalled perl in the perl source dist. + if ($ENV{PERL_CORE}) { + + # Try 3.A, If we are in a perl source tree, running an uninstalled + # perl, we can keep moving up the directory tree until we find our + # binary. We wouldn't do this under any other circumstances. + + # CBuilder is also in the core, so it should be available here + require ExtUtils::CBuilder; + my $perl_src = Cwd::realpath( ExtUtils::CBuilder->perl_src ); + if ( defined($perl_src) && length($perl_src) ) { + my $uninstperl = + File::Spec->rel2abs(File::Spec->catfile( $perl_src, $perl_basename )); + push( @potential_perls, $uninstperl ); + } + + } else { + + # Try 3.B, First look in $Config{perlpath}, then search the user's + # PATH. We do not want to do either if we are running from an + # uninstalled perl in a perl source tree. + + push( @potential_perls, $c->get('perlpath') ); + + push( @potential_perls, + map File::Spec->catfile($_, $perl_basename), File::Spec->path() ); + } + + # Now that we've enumerated the potential perls, it's time to test + # them to see if any of them match our configuration, returning the + # absolute path of the first successful match. + my $exe = $c->get('exe_ext'); + foreach my $thisperl ( @potential_perls ) { + + if (defined $exe) { + $thisperl .= $exe unless $thisperl =~ m/$exe$/i; + } + + if ( -f $thisperl && $proto->_perl_is_same($thisperl) ) { + return $thisperl; + } + } + + # We've tried all alternatives, and didn't find a perl that matches + # our configuration. Throw an exception, and list alternatives we tried. + my @paths = map File::Basename::dirname($_), @potential_perls; + die "Can't locate the perl binary used to run this script " . + "in (@paths)\n"; +} + +# Adapted from IPC::Cmd::can_run() +sub find_command { + my ($self, $command) = @_; + + if( File::Spec->file_name_is_absolute($command) ) { + return $self->_maybe_command($command); + + } else { + for my $dir ( File::Spec->path ) { + my $abs = File::Spec->catfile($dir, $command); + return $abs if $abs = $self->_maybe_command($abs); + } + } +} + +# Copied from ExtUtils::MM_Unix::maybe_command +sub _maybe_command { + my($self,$file) = @_; + return $file if -x $file && ! -d $file; + return; +} + +sub _is_interactive { + return -t STDIN && (-t STDOUT || !(-f STDOUT || -c STDOUT)) ; # Pipe? +} + +# NOTE this is a blocking operation if(-t STDIN) +sub _is_unattended { + my $self = shift; + return $ENV{PERL_MM_USE_DEFAULT} || + ( !$self->_is_interactive && eof STDIN ); +} + +sub _readline { + my $self = shift; + return undef if $self->_is_unattended; + + my $answer = <STDIN>; + chomp $answer if defined $answer; + return $answer; +} + +sub prompt { + my $self = shift; + my $mess = shift + or die "prompt() called without a prompt message"; + + # use a list to distinguish a default of undef() from no default + my @def; + @def = (shift) if @_; + # use dispdef for output + my @dispdef = scalar(@def) ? + ('[', (defined($def[0]) ? $def[0] . ' ' : ''), ']') : + (' ', ''); + + local $|=1; + print "$mess ", @dispdef; + + if ( $self->_is_unattended && !@def ) { + die <<EOF; +ERROR: This build seems to be unattended, but there is no default value +for this question. Aborting. +EOF + } + + my $ans = $self->_readline(); + + if ( !defined($ans) # Ctrl-D or unattended + or !length($ans) ) { # User hit return + print "$dispdef[1]\n"; + $ans = scalar(@def) ? $def[0] : ''; + } + + return $ans; +} + +sub y_n { + my $self = shift; + my ($mess, $def) = @_; + + die "y_n() called without a prompt message" unless $mess; + die "Invalid default value: y_n() default must be 'y' or 'n'" + if $def && $def !~ /^[yn]/i; + + my $answer; + while (1) { # XXX Infinite or a large number followed by an exception ? + $answer = $self->prompt(@_); + return 1 if $answer =~ /^y/i; + return 0 if $answer =~ /^n/i; + local $|=1; + print "Please answer 'y' or 'n'.\n"; + } +} + +sub current_action { shift->{action} } +sub invoked_action { shift->{invoked_action} } + +sub notes { shift()->{phash}{notes}->access(@_) } +sub config_data { shift()->{phash}{config_data}->access(@_) } +sub runtime_params { shift->{phash}{runtime_params}->read( @_ ? shift : () ) } # Read-only +sub auto_features { shift()->{phash}{auto_features}->access(@_) } + +sub features { + my $self = shift; + my $ph = $self->{phash}; + + if (@_) { + my $key = shift; + if ($ph->{features}->exists($key)) { + return $ph->{features}->access($key, @_); + } + + if (my $info = $ph->{auto_features}->access($key)) { + my $disabled; + for my $type ( @{$self->prereq_action_types} ) { + next if $type eq 'description' || $type eq 'recommends' || ! exists $info->{$type}; + my $prereqs = $info->{$type}; + for my $modname ( sort keys %$prereqs ) { + my $spec = $prereqs->{$modname}; + my $status = $self->check_installed_status($modname, $spec); + if ((!$status->{ok}) xor ($type =~ /conflicts$/)) { return 0; } + if ( ! eval "require $modname; 1" ) { return 0; } + } + } + return 1; + } + + return $ph->{features}->access($key, @_); + } + + # No args - get the auto_features & overlay the regular features + my %features; + my %auto_features = $ph->{auto_features}->access(); + while (my ($name, $info) = each %auto_features) { + my $failures = $self->prereq_failures($info); + my $disabled = grep( /^(?:\w+_)?(?:requires|conflicts)$/, + keys %$failures ) ? 1 : 0; + $features{$name} = $disabled ? 0 : 1; + } + %features = (%features, $ph->{features}->access()); + + return wantarray ? %features : \%features; +} +BEGIN { *feature = \&features } # Alias + +sub _mb_feature { + my $self = shift; + + if (($self->module_name || '') eq 'Module::Build') { + # We're building Module::Build itself, so ...::ConfigData isn't + # valid, but $self->features() should be. + return $self->feature(@_); + } else { + require Module::Build::ConfigData; + return Module::Build::ConfigData->feature(@_); + } +} + +sub _warn_mb_feature_deps { + my $self = shift; + my $name = shift; + $self->log_warn( + "The '$name' feature is not available. Please install missing\n" . + "feature dependencies and try again.\n". + $self->_feature_deps_msg($name) . "\n" + ); +} + +sub add_build_element { + my ($self, $elem) = @_; + my $elems = $self->build_elements; + push @$elems, $elem unless grep { $_ eq $elem } @$elems; +} + +sub ACTION_config_data { + my $self = shift; + return unless $self->has_config_data; + + my $module_name = $self->module_name + or die "The config_data feature requires that 'module_name' be set"; + my $notes_name = $module_name . '::ConfigData'; # TODO: Customize name ??? + my $notes_pm = File::Spec->catfile($self->blib, 'lib', split /::/, "$notes_name.pm"); + + return if $self->up_to_date(['Build.PL', + $self->config_file('config_data'), + $self->config_file('features') + ], $notes_pm); + + $self->log_verbose("Writing config notes to $notes_pm\n"); + File::Path::mkpath(File::Basename::dirname($notes_pm)); + + Module::Build::Notes->write_config_data + ( + file => $notes_pm, + module => $module_name, + config_module => $notes_name, + config_data => scalar $self->config_data, + feature => scalar $self->{phash}{features}->access(), + auto_features => scalar $self->auto_features, + ); +} + +######################################################################## +{ # enclosing these lexicals -- TODO + my %valid_properties = ( __PACKAGE__, {} ); + my %additive_properties; + + sub _mb_classes { + my $class = ref($_[0]) || $_[0]; + return ($class, $class->mb_parents); + } + + sub valid_property { + my ($class, $prop) = @_; + return grep exists( $valid_properties{$_}{$prop} ), $class->_mb_classes; + } + + sub valid_properties { + return keys %{ shift->valid_properties_defaults() }; + } + + sub valid_properties_defaults { + my %out; + for my $class (reverse shift->_mb_classes) { + @out{ keys %{ $valid_properties{$class} } } = map { + $_->() + } values %{ $valid_properties{$class} }; + } + return \%out; + } + + sub array_properties { + map { exists $additive_properties{$_}->{ARRAY} ? @{$additive_properties{$_}->{ARRAY}} : () } shift->_mb_classes; + } + + sub hash_properties { + map { exists $additive_properties{$_}->{HASH} ? @{$additive_properties{$_}->{HASH}} : () } shift->_mb_classes; + } + + sub add_property { + my ($class, $property) = (shift, shift); + die "Property '$property' already exists" + if $class->valid_property($property); + my %p = @_ == 1 ? ( default => shift ) : @_; + + my $type = ref $p{default}; + $valid_properties{$class}{$property} = + $type eq 'CODE' ? $p{default} : + $type eq 'HASH' ? sub { return { %{ $p{default} } } } : + $type eq 'ARRAY'? sub { return [ @{ $p{default} } ] } : + sub { return $p{default} } ; + + push @{$additive_properties{$class}->{$type}}, $property + if $type; + + unless ($class->can($property)) { + # TODO probably should put these in a util package + my $sub = $type eq 'HASH' + ? _make_hash_accessor($property, \%p) + : _make_accessor($property, \%p); + no strict 'refs'; + *{"$class\::$property"} = $sub; + } + + return $class; + } + + sub property_error { + my $self = shift; + die 'ERROR: ', @_; + } + + sub _set_defaults { + my $self = shift; + + # Set the build class. + $self->{properties}{build_class} ||= ref $self; + + # If there was no orig_dir, set to the same as base_dir + $self->{properties}{orig_dir} ||= $self->{properties}{base_dir}; + + my $defaults = $self->valid_properties_defaults; + + foreach my $prop (keys %$defaults) { + $self->{properties}{$prop} = $defaults->{$prop} + unless exists $self->{properties}{$prop}; + } + + # Copy defaults for arrays any arrays. + for my $prop ($self->array_properties) { + $self->{properties}{$prop} = [@{$defaults->{$prop}}] + unless exists $self->{properties}{$prop}; + } + # Copy defaults for arrays any hashes. + for my $prop ($self->hash_properties) { + $self->{properties}{$prop} = {%{$defaults->{$prop}}} + unless exists $self->{properties}{$prop}; + } + } + +} # end enclosure +######################################################################## +sub _make_hash_accessor { + my ($property, $p) = @_; + my $check = $p->{check} || sub { 1 }; + + return sub { + my $self = shift; + + # This is only here to deprecate the historic accident of calling + # properties as class methods - I suspect it only happens in our + # test suite. + unless(ref($self)) { + carp("\n$property not a class method (@_)"); + return; + } + + my $x = $self->{properties}; + return $x->{$property} unless @_; + + my $prop = $x->{$property}; + if ( defined $_[0] && !ref $_[0] ) { + if ( @_ == 1 ) { + return exists $prop->{$_[0]} ? $prop->{$_[0]} : undef; + } elsif ( @_ % 2 == 0 ) { + my %new = (%{ $prop }, @_); + local $_ = \%new; + $x->{$property} = \%new if $check->($self); + return $x->{$property}; + } else { + die "Unexpected arguments for property '$property'\n"; + } + } else { + die "Unexpected arguments for property '$property'\n" + if defined $_[0] && ref $_[0] ne 'HASH'; + local $_ = $_[0]; + $x->{$property} = shift if $check->($self); + } + }; +} +######################################################################## +sub _make_accessor { + my ($property, $p) = @_; + my $check = $p->{check} || sub { 1 }; + + return sub { + my $self = shift; + + # This is only here to deprecate the historic accident of calling + # properties as class methods - I suspect it only happens in our + # test suite. + unless(ref($self)) { + carp("\n$property not a class method (@_)"); + return; + } + + my $x = $self->{properties}; + return $x->{$property} unless @_; + local $_ = $_[0]; + $x->{$property} = shift if $check->($self); + return $x->{$property}; + }; +} +######################################################################## + +# Add the default properties. +__PACKAGE__->add_property(auto_configure_requires => 1); +__PACKAGE__->add_property(blib => 'blib'); +__PACKAGE__->add_property(build_class => 'Module::Build'); +__PACKAGE__->add_property(build_elements => [qw(PL support pm xs share_dir pod script)]); +__PACKAGE__->add_property(build_script => 'Build'); +__PACKAGE__->add_property(build_bat => 0); +__PACKAGE__->add_property(bundle_inc => []); +__PACKAGE__->add_property(bundle_inc_preload => []); +__PACKAGE__->add_property(config_dir => '_build'); +__PACKAGE__->add_property(dynamic_config => 1); +__PACKAGE__->add_property(include_dirs => []); +__PACKAGE__->add_property(license => 'unknown'); +__PACKAGE__->add_property(metafile => 'META.yml'); +__PACKAGE__->add_property(mymetafile => 'MYMETA.yml'); +__PACKAGE__->add_property(metafile2 => 'META.json'); +__PACKAGE__->add_property(mymetafile2 => 'MYMETA.json'); +__PACKAGE__->add_property(recurse_into => []); +__PACKAGE__->add_property(use_rcfile => 1); +__PACKAGE__->add_property(create_packlist => 1); +__PACKAGE__->add_property(allow_mb_mismatch => 0); +__PACKAGE__->add_property(config => undef); +__PACKAGE__->add_property(test_file_exts => ['.t']); +__PACKAGE__->add_property(use_tap_harness => 0); +__PACKAGE__->add_property(cpan_client => 'cpan'); +__PACKAGE__->add_property(tap_harness_args => {}); +__PACKAGE__->add_property(pureperl_only => 0); +__PACKAGE__->add_property(allow_pureperl => 0); +__PACKAGE__->add_property( + 'installdirs', + default => 'site', + check => sub { + return 1 if /^(core|site|vendor)$/; + return shift->property_error( + $_ eq 'perl' + ? 'Perhaps you meant installdirs to be "core" rather than "perl"?' + : 'installdirs must be one of "core", "site", or "vendor"' + ); + return shift->property_error("Perhaps you meant 'core'?") if $_ eq 'perl'; + return 0; + }, +); + +{ + __PACKAGE__->add_property(html_css => ''); +} + +{ + my @prereq_action_types = qw(requires build_requires test_requires conflicts recommends); + foreach my $type (@prereq_action_types) { + __PACKAGE__->add_property($type => {}); + } + __PACKAGE__->add_property(prereq_action_types => \@prereq_action_types); +} + +__PACKAGE__->add_property($_ => {}) for qw( + get_options + install_base_relpaths + install_path + install_sets + meta_add + meta_merge + original_prefix + prefix_relpaths + configure_requires +); + +__PACKAGE__->add_property($_) for qw( + PL_files + autosplit + base_dir + bindoc_dirs + c_source + create_license + create_makefile_pl + create_readme + debugger + destdir + dist_abstract + dist_author + dist_name + dist_suffix + dist_version + dist_version_from + extra_compiler_flags + extra_linker_flags + has_config_data + install_base + libdoc_dirs + magic_number + mb_version + module_name + needs_compiler + orig_dir + perl + pm_files + pod_files + pollute + prefix + program_name + quiet + recursive_test_files + release_status + script_files + scripts + share_dir + sign + test_files + verbose + debug + xs_files + extra_manify_args +); + +sub config { + my $self = shift; + my $c = ref($self) ? $self->{config} : 'Module::Build::Config'; + return $c->all_config unless @_; + + my $key = shift; + return $c->get($key) unless @_; + + my $val = shift; + return $c->set($key => $val); +} + +sub mb_parents { + # Code borrowed from Class::ISA. + my @in_stack = (shift); + my %seen = ($in_stack[0] => 1); + + my ($current, @out); + while (@in_stack) { + next unless defined($current = shift @in_stack) + && $current->isa('Module::Build::Base'); + push @out, $current; + next if $current eq 'Module::Build::Base'; + no strict 'refs'; + unshift @in_stack, + map { + my $c = $_; # copy, to avoid being destructive + substr($c,0,2) = "main::" if substr($c,0,2) eq '::'; + # Canonize the :: -> main::, ::foo -> main::foo thing. + # Should I ever canonize the Foo'Bar = Foo::Bar thing? + $seen{$c}++ ? () : $c; + } @{"$current\::ISA"}; + + # I.e., if this class has any parents (at least, ones I've never seen + # before), push them, in order, onto the stack of classes I need to + # explore. + } + shift @out; + return @out; +} + +sub extra_linker_flags { shift->_list_accessor('extra_linker_flags', @_) } +sub extra_compiler_flags { shift->_list_accessor('extra_compiler_flags', @_) } + +sub _list_accessor { + (my $self, local $_) = (shift, shift); + my $p = $self->{properties}; + $p->{$_} = [@_] if @_; + $p->{$_} = [] unless exists $p->{$_}; + return ref($p->{$_}) ? $p->{$_} : [$p->{$_}]; +} + +# XXX Problem - if Module::Build is loaded from a different directory, +# it'll look for (and perhaps destroy/create) a _build directory. +sub subclass { + my ($pack, %opts) = @_; + + my $build_dir = '_build'; # XXX The _build directory is ostensibly settable by the user. Shouldn't hard-code here. + $pack->delete_filetree($build_dir) if -e $build_dir; + + die "Must provide 'code' or 'class' option to subclass()\n" + unless $opts{code} or $opts{class}; + + $opts{code} ||= ''; + $opts{class} ||= 'MyModuleBuilder'; + + my $filename = File::Spec->catfile($build_dir, 'lib', split '::', $opts{class}) . '.pm'; + my $filedir = File::Basename::dirname($filename); + $pack->log_verbose("Creating custom builder $filename in $filedir\n"); + + File::Path::mkpath($filedir); + die "Can't create directory $filedir: $!" unless -d $filedir; + + open(my $fh, '>', $filename) or die "Can't create $filename: $!"; + print $fh <<EOF; +package $opts{class}; +use $pack; +\@ISA = qw($pack); +$opts{code} +1; +EOF + close $fh; + + unshift @INC, File::Spec->catdir(File::Spec->rel2abs($build_dir), 'lib'); + eval "use $opts{class}"; + die $@ if $@; + + return $opts{class}; +} + +sub _guess_module_name { + my $self = shift; + my $p = $self->{properties}; + return if $p->{module_name}; + if ( $p->{dist_version_from} && -e $p->{dist_version_from} ) { + my $mi = Module::Metadata->new_from_file($self->dist_version_from); + $p->{module_name} = $mi->name; + } + else { + my $mod_path = my $mod_name = $p->{dist_name}; + $mod_name =~ s{-}{::}g; + $mod_path =~ s{-}{/}g; + $mod_path .= ".pm"; + if ( -e $mod_path || -e "lib/$mod_path" ) { + $p->{module_name} = $mod_name; + } + else { + $self->log_warn( << 'END_WARN' ); +No 'module_name' was provided and it could not be inferred +from other properties. This will prevent a packlist from +being written for this file. Please set either 'module_name' +or 'dist_version_from' in Build.PL. +END_WARN + } + } +} + +sub dist_name { + my $self = shift; + my $p = $self->{properties}; + my $me = 'dist_name'; + return $p->{$me} if defined $p->{$me}; + + die "Can't determine distribution name, must supply either 'dist_name' or 'module_name' parameter" + unless $self->module_name; + + ($p->{$me} = $self->module_name) =~ s/::/-/g; + + return $p->{$me}; +} + +sub release_status { + my ($self) = @_; + my $me = 'release_status'; + my $p = $self->{properties}; + + if ( ! defined $p->{$me} ) { + $p->{$me} = $self->_is_dev_version ? 'testing' : 'stable'; + } + + unless ( $p->{$me} =~ qr/\A(?:stable|testing|unstable)\z/ ) { + die "Illegal value '$p->{$me}' for $me\n"; + } + + if ( $p->{$me} eq 'stable' && $self->_is_dev_version ) { + my $version = $self->dist_version; + die "Illegal value '$p->{$me}' with version '$version'\n"; + } + return $p->{$me}; +} + +sub dist_suffix { + my ($self) = @_; + my $p = $self->{properties}; + my $me = 'dist_suffix'; + + return $p->{$me} if defined $p->{$me}; + + if ( $self->release_status eq 'stable' ) { + $p->{$me} = ""; + } + else { + # non-stable release but non-dev version number needs '-TRIAL' appended + $p->{$me} = $self->_is_dev_version ? "" : "TRIAL" ; + } + + return $p->{$me}; +} + +sub dist_version_from { + my ($self) = @_; + my $p = $self->{properties}; + my $me = 'dist_version_from'; + + if ($self->module_name) { + $p->{$me} ||= + join( '/', 'lib', split(/::/, $self->module_name) ) . '.pm'; + } + return $p->{$me} || undef; +} + +sub dist_version { + my ($self) = @_; + my $p = $self->{properties}; + my $me = 'dist_version'; + + return $p->{$me} if defined $p->{$me}; + + if ( my $dist_version_from = $self->dist_version_from ) { + my $version_from = File::Spec->catfile( split( qr{/}, $dist_version_from ) ); + my $pm_info = Module::Metadata->new_from_file( $version_from ) + or die "Can't find file $version_from to determine version"; + #$p->{$me} is undef here + $p->{$me} = $self->normalize_version( $pm_info->version() ); + unless (defined $p->{$me}) { + die "Can't determine distribution version from $version_from"; + } + } + + die ("Can't determine distribution version, must supply either 'dist_version',\n". + "'dist_version_from', or 'module_name' parameter") + unless defined $p->{$me}; + + return $p->{$me}; +} + +sub _is_dev_version { + my ($self) = @_; + my $dist_version = $self->dist_version; + my $version_obj = eval { version->new( $dist_version ) }; + # assume it's normal if the version string is fatal -- in this case + # the author might be doing something weird so should play along and + # assume they'll specify all necessary behavior + return $@ ? 0 : $version_obj->is_alpha; +} + +sub dist_author { shift->_pod_parse('author') } +sub dist_abstract { shift->_pod_parse('abstract') } + +sub _pod_parse { + my ($self, $part) = @_; + my $p = $self->{properties}; + my $member = "dist_$part"; + return $p->{$member} if defined $p->{$member}; + + my $docfile = $self->_main_docfile + or return; + open(my $fh, '<', $docfile) + or return; + + require Module::Build::PodParser; + my $parser = Module::Build::PodParser->new(fh => $fh); + my $method = "get_$part"; + return $p->{$member} = $parser->$method(); +} + +sub version_from_file { # Method provided for backwards compatibility + return Module::Metadata->new_from_file($_[1])->version(); +} + +sub find_module_by_name { # Method provided for backwards compatibility + return Module::Metadata->find_module_by_name(@_[1,2]); +} + +{ + # $unlink_list_for_pid{$$} = [ ... ] + my %unlink_list_for_pid; + + sub _unlink_on_exit { + my $self = shift; + for my $f ( @_ ) { + push @{$unlink_list_for_pid{$$}}, $f if -f $f; + } + return 1; + } + + END { + for my $f ( map glob($_), @{ $unlink_list_for_pid{$$} || [] } ) { + next unless -e $f; + File::Path::rmtree($f, 0, 0); + } + } +} + +sub add_to_cleanup { + my $self = shift; + my %files = map {$self->localize_file_path($_), 1} @_; + $self->{phash}{cleanup}->write(\%files); +} + +sub cleanup { + my $self = shift; + my $all = $self->{phash}{cleanup}->read; + return keys %$all; +} + +sub config_file { + my $self = shift; + return unless -d $self->config_dir; + return File::Spec->catfile($self->config_dir, @_); +} + +sub read_config { + my ($self) = @_; + + my $file = $self->config_file('build_params') + or die "Can't find 'build_params' in " . $self->config_dir; + open(my $fh, '<', $file) or die "Can't read '$file': $!"; + my $ref = eval do {local $/; <$fh>}; + die if $@; + close $fh; + my $c; + ($self->{args}, $c, $self->{properties}) = @$ref; + $self->{config} = Module::Build::Config->new(values => $c); +} + +sub has_config_data { + my $self = shift; + return scalar grep $self->{phash}{$_}->has_data(), qw(config_data features auto_features); +} + +sub _write_data { + my ($self, $filename, $data) = @_; + + my $file = $self->config_file($filename); + open(my $fh, '>', $file) or die "Can't create '$file': $!"; + unless (ref($data)) { # e.g. magicnum + print $fh $data; + return; + } + + print {$fh} Module::Build::Dumper->_data_dump($data); + close $fh; +} + +sub write_config { + my ($self) = @_; + + File::Path::mkpath($self->{properties}{config_dir}); + -d $self->{properties}{config_dir} or die "Can't mkdir $self->{properties}{config_dir}: $!"; + + my @items = @{ $self->prereq_action_types }; + $self->_write_data('prereqs', { map { $_, $self->$_() } @items }); + $self->_write_data('build_params', [$self->{args}, $self->{config}->values_set, $self->{properties}]); + + # Set a new magic number and write it to a file + $self->_write_data('magicnum', $self->magic_number(int rand 1_000_000)); + + $self->{phash}{$_}->write() foreach qw(notes cleanup features auto_features config_data runtime_params); +} + +{ + # packfile map -- keys are guts of regular expressions; If they match, + # values are module names corresponding to the packlist + my %packlist_map = ( + '^File::Spec' => 'Cwd', + '^Devel::AssertOS' => 'Devel::CheckOS', + ); + + sub _find_packlist { + my ($self, $inst, $mod) = @_; + my $lookup = $mod; + my $packlist = eval { $inst->packlist($lookup) }; + if ( ! $packlist ) { + # try from packlist_map + while ( my ($re, $new_mod) = each %packlist_map ) { + if ( $mod =~ qr/$re/ ) { + $lookup = $new_mod; + $packlist = eval { $inst->packlist($lookup) }; + last; + } + } + } + return $packlist ? $lookup : undef; + } + + sub set_bundle_inc { + my $self = shift; + + my $bundle_inc = $self->{properties}{bundle_inc}; + my $bundle_inc_preload = $self->{properties}{bundle_inc_preload}; + # We're in author mode if inc::latest is loaded, but not from cwd + return unless inc::latest->can('loaded_modules'); + require ExtUtils::Installed; + # ExtUtils::Installed is buggy about finding additions to default @INC + my $inst = eval { ExtUtils::Installed->new(extra_libs => [@INC]) }; + if ($@) { + $self->log_warn( << "EUI_ERROR" ); +Bundling in inc/ is disabled because ExtUtils::Installed could not +create a list of your installed modules. Here is the error: +$@ +EUI_ERROR + return; + } + my @bundle_list = map { [ $_, 0 ] } inc::latest->loaded_modules; + + # XXX TODO: Need to get ordering of prerequisites correct so they are + # are loaded in the right order. Use an actual tree?! + + while( @bundle_list ) { + my ($mod, $prereq) = @{ shift @bundle_list }; + + # XXX TODO: Append prereqs to list + # skip if core or already in bundle or preload lists + # push @bundle_list, [$_, 1] for prereqs() + + # Locate packlist for bundling + my $lookup = $self->_find_packlist($inst,$mod); + if ( ! $lookup ) { + # XXX Really needs a more helpful error message here + die << "NO_PACKLIST"; +Could not find a packlist for '$mod'. If it's a core module, try +force installing it from CPAN. +NO_PACKLIST + } + else { + push @{ $prereq ? $bundle_inc_preload : $bundle_inc }, $lookup; + } + } + } # sub check_bundling +} + +sub check_autofeatures { + my ($self) = @_; + my $features = $self->auto_features; + + return 1 unless %$features; + + # TODO refactor into ::Util + my $longest = sub { + my @str = @_ or croak("no strings given"); + + my @len = map({length($_)} @str); + my $max = 0; + my $longest; + for my $i (0..$#len) { + ($max, $longest) = ($len[$i], $str[$i]) if($len[$i] > $max); + } + return($longest); + }; + my $max_name_len = length($longest->(keys %$features)); + + my ($num_disabled, $log_text) = (0, "\nChecking optional features...\n"); + for my $name ( sort keys %$features ) { + $log_text .= $self->_feature_deps_msg($name, $max_name_len); + } + + $num_disabled = () = $log_text =~ /disabled/g; + + # warn user if features disabled + if ( $num_disabled ) { + $self->log_warn( $log_text ); + return 0; + } + else { + $self->log_verbose( $log_text ); + return 1; + } +} + +sub _feature_deps_msg { + my ($self, $name, $max_name_len) = @_; + $max_name_len ||= length $name; + my $features = $self->auto_features; + my $info = $features->{$name}; + my $feature_text = "$name" . '.' x ($max_name_len - length($name) + 4); + + my ($log_text, $disabled) = ('',''); + if ( my $failures = $self->prereq_failures($info) ) { + $disabled = grep( /^(?:\w+_)?(?:requires|conflicts)$/, + keys %$failures ) ? 1 : 0; + $feature_text .= $disabled ? "disabled\n" : "enabled\n"; + + for my $type ( @{ $self->prereq_action_types } ) { + next unless exists $failures->{$type}; + $feature_text .= " $type:\n"; + my $prereqs = $failures->{$type}; + for my $module ( sort keys %$prereqs ) { + my $status = $prereqs->{$module}; + my $required = + ($type =~ /^(?:\w+_)?(?:requires|conflicts)$/) ? 1 : 0; + my $prefix = ($required) ? '!' : '*'; + $feature_text .= " $prefix $status->{message}\n"; + } + } + } else { + $feature_text .= "enabled\n"; + } + $log_text .= $feature_text if $disabled || $self->verbose; + return $log_text; +} + +# Automatically detect configure_requires prereqs +sub auto_config_requires { + my ($self) = @_; + my $p = $self->{properties}; + + # add current Module::Build to configure_requires if there + # isn't one already specified (but not ourself, so we're not circular) + if ( $self->dist_name ne 'Module-Build' + && $self->auto_configure_requires + && ! exists $p->{configure_requires}{'Module::Build'} + ) { + (my $ver = $VERSION) =~ s/^(\d+\.\d\d).*$/$1/; # last major release only + $self->log_warn(<<EOM); +Module::Build was not found in configure_requires! Adding it now +automatically as: configure_requires => { 'Module::Build' => $ver } +EOM + $self->_add_prereq('configure_requires', 'Module::Build', $ver); + } + + # if we're in author mode, add inc::latest modules to + # configure_requires if not already set. If we're not in author mode + # then configure_requires will have been satisfied, or we'll just + # live with what we've bundled + if ( inc::latest->can('loaded_module') ) { + for my $mod ( inc::latest->loaded_modules ) { + next if exists $p->{configure_requires}{$mod}; + $self->_add_prereq('configure_requires', $mod, $mod->VERSION); + } + } + + return; +} + +# Automatically detect and add prerequisites based on configuration +sub auto_require { + my ($self) = @_; + my $p = $self->{properties}; + + # If needs_compiler is not explicitly set, automatically set it + # If set, we need ExtUtils::CBuilder (and a compiler) + my $xs_files = $self->find_xs_files; + if ( ! defined $p->{needs_compiler} ) { + $self->needs_compiler( keys %$xs_files || defined $self->c_source ); + } + if ($self->needs_compiler) { + $self->_add_prereq('build_requires', 'ExtUtils::CBuilder', 0); + if ( ! $self->have_c_compiler ) { + $self->log_warn(<<'EOM'); +Warning: ExtUtils::CBuilder not installed or no compiler detected +Proceeding with configuration, but compilation may fail during Build + +EOM + } + } + + # If using share_dir, require File::ShareDir + if ( $self->share_dir ) { + $self->_add_prereq( 'requires', 'File::ShareDir', '1.00' ); + } + + return; +} + +sub _add_prereq { + my ($self, $type, $module, $version) = @_; + my $p = $self->{properties}; + $version = 0 unless defined $version; + if ( exists $p->{$type}{$module} ) { + return if $self->compare_versions( $version, '<=', $p->{$type}{$module} ); + } + $self->log_verbose("Adding to $type\: $module => $version\n"); + $p->{$type}{$module} = $version; + return 1; +} + +sub prereq_failures { + my ($self, $info) = @_; + + my @types = @{ $self->prereq_action_types }; + $info ||= {map {$_, $self->$_()} @types}; + + my $out; + + foreach my $type (@types) { + my $prereqs = $info->{$type}; + for my $modname ( keys %$prereqs ) { + my $spec = $prereqs->{$modname}; + my $status = $self->check_installed_status($modname, $spec); + + if ($type =~ /^(?:\w+_)?conflicts$/) { + next if !$status->{ok}; + $status->{conflicts} = delete $status->{need}; + $status->{message} = "$modname ($status->{have}) conflicts with this distribution"; + + } elsif ($type =~ /^(?:\w+_)?recommends$/) { + next if $status->{ok}; + $status->{message} = (!ref($status->{have}) && $status->{have} eq '<none>' + ? "$modname is not installed" + : "$modname ($status->{have}) is installed, but we prefer to have $spec"); + } else { + next if $status->{ok}; + } + + $out->{$type}{$modname} = $status; + } + } + + return $out; +} + +# returns a hash of defined prerequisites; i.e. only prereq types with values +sub _enum_prereqs { + my $self = shift; + my %prereqs; + foreach my $type ( @{ $self->prereq_action_types } ) { + if ( $self->can( $type ) ) { + my $prereq = $self->$type() || {}; + $prereqs{$type} = $prereq if %$prereq; + } + } + return \%prereqs; +} + +sub check_prereq { + my $self = shift; + + # Check to see if there are any prereqs to check + my $info = $self->_enum_prereqs; + return 1 unless $info; + + my $log_text = "Checking prerequisites...\n"; + + my $failures = $self->prereq_failures($info); + + if ( $failures ) { + $self->log_warn($log_text); + for my $type ( @{ $self->prereq_action_types } ) { + my $prereqs = $failures->{$type}; + $self->log_warn(" ${type}:\n") if keys %$prereqs; + for my $module ( sort keys %$prereqs ) { + my $status = $prereqs->{$module}; + my $prefix = ($type =~ /^(?:\w+_)?recommends$/) ? "* " : "! "; + $self->log_warn(" $prefix $status->{message}\n"); + } + } + return 0; + } else { + $self->log_verbose($log_text . "Looks good\n\n"); + return 1; + } +} + +sub perl_version { + my ($self) = @_; + # Check the current perl interpreter + # It's much more convenient to use $] here than $^V, but 'man + # perlvar' says I'm not supposed to. Bloody tyrant. + return $^V ? $self->perl_version_to_float(sprintf "%vd", $^V) : $]; +} + +sub perl_version_to_float { + my ($self, $version) = @_; + return $version if grep( /\./, $version ) < 2; + $version =~ s/\./../; + $version =~ s/\.(\d+)/sprintf '%03d', $1/eg; + return $version; +} + +sub _parse_conditions { + my ($self, $spec) = @_; + + return ">= 0" if not defined $spec; + if ($spec =~ /^\s*([\w.]+)\s*$/) { # A plain number, maybe with dots, letters, and underscores + return (">= $spec"); + } else { + return split /\s*,\s*/, $spec; + } +} + +sub try_require { + my ($self, $modname, $spec) = @_; + my $status = $self->check_installed_status($modname, defined($spec) ? $spec : 0); + return unless $status->{ok}; + my $path = $modname; + $path =~ s{::}{/}g; + $path .= ".pm"; + if ( defined $INC{$path} ) { + return 1; + } + elsif ( exists $INC{$path} ) { # failed before, don't try again + return; + } + else { + return eval "require $modname"; + } +} + +sub check_installed_status { + my ($self, $modname, $spec) = @_; + my %status = (need => $spec); + + if ($modname eq 'perl') { + $status{have} = $self->perl_version; + + } elsif (eval { no strict; $status{have} = ${"${modname}::VERSION"} }) { + # Don't try to load if it's already loaded + + } else { + my $pm_info = Module::Metadata->new_from_module( $modname ); + unless (defined( $pm_info )) { + @status{ qw(have message) } = ('<none>', "$modname is not installed"); + return \%status; + } + + $status{have} = eval { $pm_info->version() }; + if ($spec and !defined($status{have})) { + @status{ qw(have message) } = (undef, "Couldn't find a \$VERSION in prerequisite $modname"); + return \%status; + } + } + + my @conditions = $self->_parse_conditions($spec); + + foreach (@conditions) { + my ($op, $version) = /^\s* (<=?|>=?|==|!=) \s* ([\w.]+) \s*$/x + or die "Invalid prerequisite condition '$_' for $modname"; + + $version = $self->perl_version_to_float($version) + if $modname eq 'perl'; + + next if $op eq '>=' and !$version; # Module doesn't have to actually define a $VERSION + + unless ($self->compare_versions( $status{have}, $op, $version )) { + $status{message} = "$modname ($status{have}) is installed, but we need version $op $version"; + return \%status; + } + } + + $status{ok} = 1; + return \%status; +} + +sub compare_versions { + my $self = shift; + my ($v1, $op, $v2) = @_; + $v1 = version->new($v1) + unless eval { $v1->isa('version') }; + + my $eval_str = "\$v1 $op \$v2"; + my $result = eval $eval_str; + $self->log_warn("error comparing versions: '$eval_str' $@") if $@; + + return $result; +} + +# I wish I could set $! to a string, but I can't, so I use $@ +sub check_installed_version { + my ($self, $modname, $spec) = @_; + + my $status = $self->check_installed_status($modname, $spec); + + if ($status->{ok}) { + return $status->{have} if $status->{have} and "$status->{have}" ne '<none>'; + return '0 but true'; + } + + $@ = $status->{message}; + return 0; +} + +sub make_executable { + # Perl's chmod() is mapped to useful things on various non-Unix + # platforms, so we use it in the base class even though it looks + # Unixish. + + my $self = shift; + foreach (@_) { + my $current_mode = (stat $_)[2]; + chmod $current_mode | oct(111), $_; + } +} + +sub is_executable { + # We assume this does the right thing on generic platforms, though + # we do some other more specific stuff on Unixish platforms. + my ($self, $file) = @_; + return -x $file; +} + +sub _startperl { shift()->config('startperl') } + +# Return any directories in @INC which are not in the default @INC for +# this perl. For example, stuff passed in with -I or loaded with "use lib". +sub _added_to_INC { + my $self = shift; + + my %seen; + $seen{$_}++ foreach $self->_default_INC; + return grep !$seen{$_}++, @INC; +} + +# Determine the default @INC for this Perl +{ + my @default_inc; # Memoize + sub _default_INC { + my $self = shift; + return @default_inc if @default_inc; + + local $ENV{PERL5LIB}; # this is not considered part of the default. + + my $perl = ref($self) ? $self->perl : $self->find_perl_interpreter; + + my @inc = $self->_backticks($perl, '-le', 'print for @INC'); + chomp @inc; + + return @default_inc = @inc; + } +} + +sub print_build_script { + my ($self, $fh) = @_; + + my $build_package = $self->build_class; + + my $closedata=""; + + my $config_requires; + if ( -f $self->metafile ) { + my $meta = eval { $self->read_metafile( $self->metafile ) }; + $config_requires = $meta && $meta->{prereqs}{configure}{requires}{'Module::Build'}; + } + $config_requires ||= 0; + + my %q = map {$_, $self->$_()} qw(config_dir base_dir); + + $q{base_dir} = Win32::GetShortPathName($q{base_dir}) if $self->is_windowsish; + + $q{magic_numfile} = $self->config_file('magicnum'); + + my @myINC = $self->_added_to_INC; + for (@myINC, values %q) { + $_ = File::Spec->canonpath( $_ ) unless $self->is_vmsish; + s/([\\\'])/\\$1/g; + } + + my $quoted_INC = join ",\n", map " '$_'", @myINC; + my $shebang = $self->_startperl; + my $magic_number = $self->magic_number; + + print $fh <<EOF; +$shebang + +use strict; +use Cwd; +use File::Basename; +use File::Spec; + +sub magic_number_matches { + return 0 unless -e '$q{magic_numfile}'; + my \$FH; + open \$FH, '<','$q{magic_numfile}' or return 0; + my \$filenum = <\$FH>; + close \$FH; + return \$filenum == $magic_number; +} + +my \$progname; +my \$orig_dir; +BEGIN { + \$^W = 1; # Use warnings + \$progname = basename(\$0); + \$orig_dir = Cwd::cwd(); + my \$base_dir = '$q{base_dir}'; + if (!magic_number_matches()) { + unless (chdir(\$base_dir)) { + die ("Couldn't chdir(\$base_dir), aborting\\n"); + } + unless (magic_number_matches()) { + die ("Configuration seems to be out of date, please re-run 'perl Build.PL' again.\\n"); + } + } + unshift \@INC, + ( +$quoted_INC + ); +} + +close(*DATA) unless eof(*DATA); # ensure no open handles to this script + +use $build_package; +Module::Build->VERSION(q{$config_requires}); + +# Some platforms have problems setting \$^X in shebang contexts, fix it up here +\$^X = Module::Build->find_perl_interpreter; + +if (-e 'Build.PL' and not $build_package->up_to_date('Build.PL', \$progname)) { + warn "Warning: Build.PL has been altered. You may need to run 'perl Build.PL' again.\\n"; +} + +# This should have just enough arguments to be able to bootstrap the rest. +my \$build = $build_package->resume ( + properties => { + config_dir => '$q{config_dir}', + orig_dir => \$orig_dir, + }, +); + +\$build->dispatch; +EOF +} + +sub create_mymeta { + my ($self) = @_; + + my ($meta_obj, $mymeta); + my @metafiles = ( $self->metafile2, $self->metafile, ); + my @mymetafiles = ( $self->mymetafile2, $self->mymetafile, ); + + # cleanup old MYMETA + for my $f ( @mymetafiles ) { + if ( $self->delete_filetree($f) ) { + $self->log_verbose("Removed previous '$f'\n"); + } + } + + # Try loading META.json or META.yml + if ( $self->try_require("CPAN::Meta", "2.110420") ) { + for my $file ( @metafiles ) { + next unless -f $file; + $meta_obj = eval { CPAN::Meta->load_file($file, { lazy_validation => 0 }) }; + last if $meta_obj; + } + } + + # maybe get a copy in spec v2 format (regardless of original source) + + my $mymeta_obj; + if ($meta_obj) { + # if we have metadata, just update it + my %updated = ( + %{ $meta_obj->as_struct({ version => 2.0 }) }, + prereqs => $self->_normalize_prereqs, + dynamic_config => 0, + generated_by => "Module::Build version $Module::Build::VERSION", + ); + $mymeta_obj = CPAN::Meta->new( \%updated, { lazy_validation => 0 } ); + } + else { + $mymeta_obj = $self->_get_meta_object(quiet => 0, dynamic => 0, fatal => 1, auto => 0); + } + + my @created = $self->_write_meta_files( $mymeta_obj, 'MYMETA' ); + + $self->log_warn("Could not create MYMETA files\n") + unless @created; + + return 1; +} + +sub create_build_script { + my ($self) = @_; + + $self->write_config; + $self->create_mymeta; + + # Create Build + my ($build_script, $dist_name, $dist_version) + = map $self->$_(), qw(build_script dist_name dist_version); + + if ( $self->delete_filetree($build_script) ) { + $self->log_verbose("Removed previous script '$build_script'\n"); + } + + $self->log_info("Creating new '$build_script' script for ", + "'$dist_name' version '$dist_version'\n"); + open(my $fh, '>', $build_script) or die "Can't create '$build_script': $!"; + $self->print_build_script($fh); + close $fh; + + $self->make_executable($build_script); + + return 1; +} + +sub check_manifest { + my $self = shift; + return unless -e 'MANIFEST'; + + # Stolen nearly verbatim from MakeMaker. But ExtUtils::Manifest + # could easily be re-written into a modern Perl dialect. + + require ExtUtils::Manifest; # ExtUtils::Manifest is not warnings clean. + local ($^W, $ExtUtils::Manifest::Quiet) = (0,1); + + $self->log_verbose("Checking whether your kit is complete...\n"); + if (my @missed = ExtUtils::Manifest::manicheck()) { + $self->log_warn("WARNING: the following files are missing in your kit:\n", + "\t", join("\n\t", @missed), "\n", + "Please inform the author.\n\n"); + } else { + $self->log_verbose("Looks good\n\n"); + } +} + +sub dispatch { + my $self = shift; + local $self->{_completed_actions} = {}; + + if (@_) { + my ($action, %p) = @_; + my $args = $p{args} ? delete($p{args}) : {}; + + local $self->{invoked_action} = $action; + local $self->{args} = {%{$self->{args}}, %$args}; + local $self->{properties} = {%{$self->{properties}}, %p}; + return $self->_call_action($action); + } + + die "No build action specified" unless $self->{action}; + local $self->{invoked_action} = $self->{action}; + $self->_call_action($self->{action}); +} + +sub _call_action { + my ($self, $action) = @_; + + return if $self->{_completed_actions}{$action}++; + + local $self->{action} = $action; + my $method = $self->can_action( $action ); + die "No action '$action' defined, try running the 'help' action.\n" unless $method; + $self->log_debug("Starting ACTION_$action\n"); + my $rc = $self->$method(); + $self->log_debug("Finished ACTION_$action\n"); + return $rc; +} + +sub can_action { + my ($self, $action) = @_; + return $self->can( "ACTION_$action" ); +} + +# cuts the user-specified options out of the command-line args +sub cull_options { + my $self = shift; + my (@argv) = @_; + + # XXX is it even valid to call this as a class method? + return({}, @argv) unless(ref($self)); # no object + + my $specs = $self->get_options; + return({}, @argv) unless($specs and %$specs); # no user options + + require Getopt::Long; + # XXX Should we let Getopt::Long handle M::B's options? That would + # be easy-ish to add to @specs right here, but wouldn't handle options + # passed without "--" as M::B currently allows. We might be able to + # get around this by setting the "prefix_pattern" Configure option. + my @specs; + my $args = {}; + # Construct the specifications for GetOptions. + while (my ($k, $v) = each %$specs) { + # Throw an error if specs conflict with our own. + die "Option specification '$k' conflicts with a " . ref $self + . " option of the same name" + if $self->valid_property($k); + push @specs, $k . (defined $v->{type} ? $v->{type} : ''); + push @specs, $v->{store} if exists $v->{store}; + $args->{$k} = $v->{default} if exists $v->{default}; + } + + local @ARGV = @argv; # No other way to dupe Getopt::Long + + # Get the options values and return them. + # XXX Add option to allow users to set options? + if ( @specs ) { + Getopt::Long::Configure('pass_through'); + Getopt::Long::GetOptions($args, @specs); + } + + return $args, @ARGV; +} + +sub unparse_args { + my ($self, $args) = @_; + my @out; + while (my ($k, $v) = each %$args) { + push @out, (ref $v eq 'HASH' ? map {+"--$k", "$_=$v->{$_}"} keys %$v : + ref $v eq 'ARRAY' ? map {+"--$k", $_} @$v : + ("--$k", $v)); + } + return @out; +} + +sub args { + my $self = shift; + return wantarray ? %{ $self->{args} } : $self->{args} unless @_; + my $key = shift; + $self->{args}{$key} = shift if @_; + return $self->{args}{$key}; +} + +# allows select parameters (with underscores) to be spoken with dashes +# when used as command-line options +sub _translate_option { + my $self = shift; + my $opt = shift; + + (my $tr_opt = $opt) =~ tr/-/_/; + + return $tr_opt if grep $tr_opt =~ /^(?:no_?)?$_$/, qw( + create_license + create_makefile_pl + create_readme + extra_compiler_flags + extra_linker_flags + install_base + install_path + meta_add + meta_merge + test_files + use_rcfile + use_tap_harness + tap_harness_args + cpan_client + pureperl_only + allow_pureperl + ); # normalize only selected option names + + return $opt; +} + +my %singular_argument = map { ($_ => 1) } qw/install_base prefix destdir installdirs verbose quiet uninst debug sign/; + +sub _read_arg { + my ($self, $args, $key, $val) = @_; + + $key = $self->_translate_option($key); + + if ( exists $args->{$key} and not $singular_argument{$key} ) { + $args->{$key} = [ $args->{$key} ] unless ref $args->{$key}; + push @{$args->{$key}}, $val; + } else { + $args->{$key} = $val; + } +} + +# decide whether or not an option requires/has an operand +sub _optional_arg { + my $self = shift; + my $opt = shift; + my $argv = shift; + + $opt = $self->_translate_option($opt); + + my @bool_opts = qw( + build_bat + create_license + create_readme + pollute + quiet + uninst + use_rcfile + verbose + debug + sign + use_tap_harness + pureperl_only + allow_pureperl + ); + + # inverted boolean options; eg --noverbose or --no-verbose + # converted to proper name & returned with false value (verbose, 0) + if ( grep $opt =~ /^no[-_]?$_$/, @bool_opts ) { + $opt =~ s/^no-?//; + return ($opt, 0); + } + + # non-boolean option; return option unchanged along with its argument + return ($opt, shift(@$argv)) unless grep $_ eq $opt, @bool_opts; + + # we're punting a bit here, if an option appears followed by a digit + # we take the digit as the argument for the option. If there is + # nothing that looks like a digit, we pretend the option is a flag + # that is being set and has no argument. + my $arg = 1; + $arg = shift(@$argv) if @$argv && $argv->[0] =~ /^\d+$/; + + return ($opt, $arg); +} + +sub read_args { + my $self = shift; + + (my $args, @_) = $self->cull_options(@_); + my %args = %$args; + + my $opt_re = qr/[\w\-]+/; + + my ($action, @argv); + while (@_) { + local $_ = shift; + if ( /^(?:--)?($opt_re)=(.*)$/ ) { + $self->_read_arg(\%args, $1, $2); + } elsif ( /^--($opt_re)$/ ) { + my($opt, $arg) = $self->_optional_arg($1, \@_); + $self->_read_arg(\%args, $opt, $arg); + } elsif ( /^($opt_re)$/ and !defined($action)) { + $action = $1; + } else { + push @argv, $_; + } + } + $args{ARGV} = \@argv; + + for ('extra_compiler_flags', 'extra_linker_flags') { + $args{$_} = [ $self->split_like_shell($args{$_}) ] if exists $args{$_}; + } + + # Convert to arrays + for ('include_dirs') { + $args{$_} = [ $args{$_} ] if exists $args{$_} && !ref $args{$_} + } + + # Hashify these parameters + for ($self->hash_properties, 'config') { + next unless exists $args{$_}; + my %hash; + $args{$_} ||= []; + $args{$_} = [ $args{$_} ] unless ref $args{$_}; + foreach my $arg ( @{$args{$_}} ) { + $arg =~ /($opt_re)=(.*)/ + or die "Malformed '$_' argument: '$arg' should be something like 'foo=bar'"; + $hash{$1} = $2; + } + $args{$_} = \%hash; + } + + # De-tilde-ify any path parameters + for my $key (qw(prefix install_base destdir)) { + next if !defined $args{$key}; + $args{$key} = $self->_detildefy($args{$key}); + } + + for my $key (qw(install_path)) { + next if !defined $args{$key}; + + for my $subkey (keys %{$args{$key}}) { + next if !defined $args{$key}{$subkey}; + my $subkey_ext = $self->_detildefy($args{$key}{$subkey}); + if ( $subkey eq 'html' ) { # translate for compatibility + $args{$key}{binhtml} = $subkey_ext; + $args{$key}{libhtml} = $subkey_ext; + } else { + $args{$key}{$subkey} = $subkey_ext; + } + } + } + + if ($args{makefile_env_macros}) { + require Module::Build::Compat; + %args = (%args, Module::Build::Compat->makefile_to_build_macros); + } + + return \%args, $action; +} + +# Default: do nothing. Overridden for Unix & Windows. +sub _detildefy {} + + +# merge Module::Build argument lists that have already been parsed +# by read_args(). Takes two references to option hashes and merges +# the contents, giving priority to the first. +sub _merge_arglist { + my( $self, $opts1, $opts2 ) = @_; + + $opts1 ||= {}; + $opts2 ||= {}; + my %new_opts = %$opts1; + while (my ($key, $val) = each %$opts2) { + if ( exists( $opts1->{$key} ) ) { + if ( ref( $val ) eq 'HASH' ) { + while (my ($k, $v) = each %$val) { + $new_opts{$key}{$k} = $v unless exists( $opts1->{$key}{$k} ); + } + } + } else { + $new_opts{$key} = $val + } + } + + return %new_opts; +} + +# Look for a home directory on various systems. +sub _home_dir { + my @home_dirs; + push( @home_dirs, $ENV{HOME} ) if $ENV{HOME}; + + push( @home_dirs, File::Spec->catpath($ENV{HOMEDRIVE}, $ENV{HOMEPATH}, '') ) + if $ENV{HOMEDRIVE} && $ENV{HOMEPATH}; + + my @other_home_envs = qw( USERPROFILE APPDATA WINDIR SYS$LOGIN ); + push( @home_dirs, map $ENV{$_}, grep $ENV{$_}, @other_home_envs ); + + my @real_home_dirs = grep -d, @home_dirs; + + return wantarray ? @real_home_dirs : shift( @real_home_dirs ); +} + +sub _find_user_config { + my $self = shift; + my $file = shift; + foreach my $dir ( $self->_home_dir ) { + my $path = File::Spec->catfile( $dir, $file ); + return $path if -e $path; + } + return undef; +} + +# read ~/.modulebuildrc returning global options '*' and +# options specific to the currently executing $action. +sub read_modulebuildrc { + my( $self, $action ) = @_; + + return () unless $self->use_rcfile; + + my $modulebuildrc; + if ( exists($ENV{MODULEBUILDRC}) && $ENV{MODULEBUILDRC} eq 'NONE' ) { + return (); + } elsif ( exists($ENV{MODULEBUILDRC}) && -e $ENV{MODULEBUILDRC} ) { + $modulebuildrc = $ENV{MODULEBUILDRC}; + } elsif ( exists($ENV{MODULEBUILDRC}) ) { + $self->log_warn("WARNING: Can't find resource file " . + "'$ENV{MODULEBUILDRC}' defined in environment.\n" . + "No options loaded\n"); + return (); + } else { + $modulebuildrc = $self->_find_user_config( '.modulebuildrc' ); + return () unless $modulebuildrc; + } + + open(my $fh, '<', $modulebuildrc ) + or die "Can't open $modulebuildrc: $!"; + + my %options; my $buffer = ''; + while (defined( my $line = <$fh> )) { + chomp( $line ); + $line =~ s/#.*$//; + next unless length( $line ); + + if ( $line =~ /^\S/ ) { + if ( $buffer ) { + my( $action, $options ) = split( /\s+/, $buffer, 2 ); + $options{$action} .= $options . ' '; + $buffer = ''; + } + $buffer = $line; + } else { + $buffer .= $line; + } + } + + if ( $buffer ) { # anything left in $buffer ? + my( $action, $options ) = split( /\s+/, $buffer, 2 ); + $options{$action} .= $options . ' '; # merge if more than one line + } + + my ($global_opts) = + $self->read_args( $self->split_like_shell( $options{'*'} || '' ) ); + + # let fakeinstall act like install if not provided + if ( $action eq 'fakeinstall' && ! exists $options{fakeinstall} ) { + $action = 'install'; + } + my ($action_opts) = + $self->read_args( $self->split_like_shell( $options{$action} || '' ) ); + + # specific $action options take priority over global options '*' + return $self->_merge_arglist( $action_opts, $global_opts ); +} + +# merge the relevant options in ~/.modulebuildrc into Module::Build's +# option list where they do not conflict with commandline options. +sub merge_modulebuildrc { + my( $self, $action, %cmdline_opts ) = @_; + my %rc_opts = $self->read_modulebuildrc( $action || $self->{action} || 'build' ); + my %new_opts = $self->_merge_arglist( \%cmdline_opts, \%rc_opts ); + $self->merge_args( $action, %new_opts ); +} + +sub merge_args { + my ($self, $action, %args) = @_; + $self->{action} = $action if defined $action; + + my %additive = map { $_ => 1 } $self->hash_properties; + + # Extract our 'properties' from $cmd_args, the rest are put in 'args'. + while (my ($key, $val) = each %args) { + $self->{phash}{runtime_params}->access( $key => $val ) + if $self->valid_property($key); + + if ($key eq 'config') { + $self->config($_ => $val->{$_}) foreach keys %$val; + } else { + my $add_to = $additive{$key} ? $self->{properties}{$key} : + $self->valid_property($key) ? $self->{properties} : + $self->{args} ; + + if ($additive{$key}) { + $add_to->{$_} = $val->{$_} foreach keys %$val; + } else { + $add_to->{$key} = $val; + } + } + } +} + +sub cull_args { + my $self = shift; + my @arg_list = @_; + unshift @arg_list, $self->split_like_shell($ENV{PERL_MB_OPT}) + if $ENV{PERL_MB_OPT}; + my ($args, $action) = $self->read_args(@arg_list); + $self->merge_args($action, %$args); + $self->merge_modulebuildrc( $action, %$args ); +} + +sub super_classes { + my ($self, $class, $seen) = @_; + $class ||= ref($self) || $self; + $seen ||= {}; + + no strict 'refs'; + my @super = grep {not $seen->{$_}++} $class, @{ $class . '::ISA' }; + return @super, map {$self->super_classes($_,$seen)} @super; +} + +sub known_actions { + my ($self) = @_; + + my %actions; + no strict 'refs'; + + foreach my $class ($self->super_classes) { + foreach ( keys %{ $class . '::' } ) { + $actions{$1}++ if /^ACTION_(\w+)/; + } + } + + return wantarray ? sort keys %actions : \%actions; +} + +sub get_action_docs { + my ($self, $action) = @_; + my $actions = $self->known_actions; + die "No known action '$action'" unless $actions->{$action}; + + my ($files_found, @docs) = (0); + foreach my $class ($self->super_classes) { + (my $file = $class) =~ s{::}{/}g; + # NOTE: silently skipping relative paths if any chdir() happened + $file = $INC{$file . '.pm'} or next; + open(my $fh, '<', $file) or next; + $files_found++; + + # Code below modified from /usr/bin/perldoc + + # Skip to ACTIONS section + local $_; + while (<$fh>) { + last if /^=head1 ACTIONS\s/; + } + + # Look for our action and determine the style + my $style; + while (<$fh>) { + last if /^=head1 /; + + # only item and head2 are allowed (3&4 are not in 5.005) + if(/^=(item|head2)\s+\Q$action\E\b/) { + $style = $1; + push @docs, $_; + last; + } + } + $style or next; # not here + + # and the content + if($style eq 'item') { + my ($found, $inlist) = (0, 0); + while (<$fh>) { + if (/^=(item|back)/) { + last unless $inlist; + } + push @docs, $_; + ++$inlist if /^=over/; + --$inlist if /^=back/; + } + } + else { # head2 style + # stop at anything equal or greater than the found level + while (<$fh>) { + last if(/^=(?:head[12]|cut)/); + push @docs, $_; + } + } + # TODO maybe disallow overriding just pod for an action + # TODO and possibly: @docs and last; + } + + unless ($files_found) { + $@ = "Couldn't find any documentation to search"; + return; + } + unless (@docs) { + $@ = "Couldn't find any docs for action '$action'"; + return; + } + + return join '', @docs; +} + +sub ACTION_prereq_report { + my $self = shift; + $self->log_info( $self->prereq_report ); +} + +sub ACTION_prereq_data { + my $self = shift; + $self->log_info( Module::Build::Dumper->_data_dump( $self->prereq_data ) ); +} + +sub prereq_data { + my $self = shift; + my @types = ('configure_requires', @{ $self->prereq_action_types } ); + my $info = { map { $_ => $self->$_() } grep { %{$self->$_()} } @types }; + return $info; +} + +sub prereq_report { + my $self = shift; + my $info = $self->prereq_data; + + my $output = ''; + foreach my $type (keys %$info) { + my $prereqs = $info->{$type}; + $output .= "\n$type:\n"; + my $mod_len = 2; + my $ver_len = 4; + my %mods; + while ( my ($modname, $spec) = each %$prereqs ) { + my $len = length $modname; + $mod_len = $len if $len > $mod_len; + $spec ||= '0'; + $len = length $spec; + $ver_len = $len if $len > $ver_len; + + my $mod = $self->check_installed_status($modname, $spec); + $mod->{name} = $modname; + $mod->{ok} ||= 0; + $mod->{ok} = ! $mod->{ok} if $type =~ /^(\w+_)?conflicts$/; + + $mods{lc $modname} = $mod; + } + + my $space = q{ } x ($mod_len - 3); + my $vspace = q{ } x ($ver_len - 3); + my $sline = q{-} x ($mod_len - 3); + my $vline = q{-} x ($ver_len - 3); + my $disposition = ($type =~ /^(\w+_)?conflicts$/) ? + 'Clash' : 'Need'; + $output .= + " Module $space $disposition $vspace Have\n". + " ------$sline+------$vline-+----------\n"; + + + for my $k (sort keys %mods) { + my $mod = $mods{$k}; + my $space = q{ } x ($mod_len - length $k); + my $vspace = q{ } x ($ver_len - length $mod->{need}); + my $f = $mod->{ok} ? ' ' : '!'; + $output .= + " $f $mod->{name} $space $mod->{need} $vspace ". + (defined($mod->{have}) ? $mod->{have} : "")."\n"; + } + } + return $output; +} + +sub ACTION_help { + my ($self) = @_; + my $actions = $self->known_actions; + + if (@{$self->{args}{ARGV}}) { + my $msg = eval {$self->get_action_docs($self->{args}{ARGV}[0], $actions)}; + print $@ ? "$@\n" : $msg; + return; + } + + print <<EOF; + + Usage: $0 <action> --arg1=value --arg2=value ... + Example: $0 test --verbose=1 + + Actions defined: +EOF + + print $self->_action_listing($actions); + + print "\nRun `Build help <action>` for details on an individual action.\n"; + print "See `perldoc Module::Build` for complete documentation.\n"; +} + +sub _action_listing { + my ($self, $actions) = @_; + + # Flow down columns, not across rows + my @actions = sort keys %$actions; + @actions = map $actions[($_ + ($_ % 2) * @actions) / 2], 0..$#actions; + + my $out = ''; + while (my ($one, $two) = splice @actions, 0, 2) { + $out .= sprintf(" %-12s %-12s\n", $one, $two||''); + } + $out =~ s{\s*$}{}mg; # remove trailing spaces + return $out; +} + +sub ACTION_retest { + my ($self) = @_; + + # Protect others against our @INC changes + local @INC = @INC; + + # Filter out nonsensical @INC entries - some versions of + # Test::Harness will really explode the number of entries here + @INC = grep {ref() || -d} @INC if @INC > 100; + + $self->do_tests; +} + +sub ACTION_testall { + my ($self) = @_; + + my @types; + for my $action (grep { $_ ne 'all' } $self->get_test_types) { + # XXX We can't just dispatch because we get multiple summaries but + # we'll need to dispatch to support custom setup/teardown in the + # action. To support that, we'll need to call something besides + # Harness::runtests() because we'll need to collect the results in + # parts, then run the summary. + push(@types, $action); + #$self->_call_action( "test$action" ); + } + $self->generic_test(types => ['default', @types]); +} + +sub get_test_types { + my ($self) = @_; + + my $t = $self->{properties}->{test_types}; + return ( defined $t ? ( keys %$t ) : () ); +} + + +sub ACTION_test { + my ($self) = @_; + $self->generic_test(type => 'default'); +} + +sub generic_test { + my $self = shift; + (@_ % 2) and croak('Odd number of elements in argument hash'); + my %args = @_; + + my $p = $self->{properties}; + + my @types = ( + (exists($args{type}) ? $args{type} : ()), + (exists($args{types}) ? @{$args{types}} : ()), + ); + @types or croak "need some types of tests to check"; + + my %test_types = ( + default => $p->{test_file_exts}, + (defined($p->{test_types}) ? %{$p->{test_types}} : ()), + ); + + for my $type (@types) { + croak "$type not defined in test_types!" + unless defined $test_types{ $type }; + } + + # we use local here because it ends up two method calls deep + local $p->{test_file_exts} = [ map { ref $_ ? @$_ : $_ } @test_types{@types} ]; + $self->depends_on('code'); + + # Protect others against our @INC changes + local @INC = @INC; + + # Make sure we test the module in blib/ + unshift @INC, (File::Spec->catdir($p->{base_dir}, $self->blib, 'lib'), + File::Spec->catdir($p->{base_dir}, $self->blib, 'arch')); + + # Filter out nonsensical @INC entries - some versions of + # Test::Harness will really explode the number of entries here + @INC = grep {ref() || -d} @INC if @INC > 100; + + $self->do_tests; +} + +# Test::Harness dies on failure but TAP::Harness does not, so we must +# die if running under TAP::Harness +sub do_tests { + my $self = shift; + + my $tests = $self->find_test_files; + + local $ENV{PERL_DL_NONLAZY} = 1; + + if(@$tests) { + my $args = $self->tap_harness_args; + if($self->use_tap_harness or ($args and %$args)) { + my $aggregate = $self->run_tap_harness($tests); + if ( $aggregate->has_errors ) { + die "Errors in testing. Cannot continue.\n"; + } + } + else { + $self->run_test_harness($tests); + } + } + else { + $self->log_info("No tests defined.\n"); + } + + $self->run_visual_script; +} + +sub run_tap_harness { + my ($self, $tests) = @_; + + require TAP::Harness; + + # TODO allow the test @INC to be set via our API? + + my $aggregate = TAP::Harness->new({ + lib => [@INC], + verbosity => $self->{properties}{verbose}, + switches => [ $self->harness_switches ], + %{ $self->tap_harness_args }, + })->runtests(@$tests); + + return $aggregate; +} + +sub run_test_harness { + my ($self, $tests) = @_; + require Test::Harness; + + local $Test::Harness::verbose = $self->verbose || 0; + local $Test::Harness::switches = join ' ', $self->harness_switches; + + Test::Harness::runtests(@$tests); +} + +sub run_visual_script { + my $self = shift; + # This will get run and the user will see the output. It doesn't + # emit Test::Harness-style output. + $self->run_perl_script('visual.pl', '-Mblib='.$self->blib) + if -e 'visual.pl'; +} + +sub harness_switches { + shift->{properties}{debugger} ? qw(-w -d) : (); +} + +sub test_files { + my $self = shift; + my $p = $self->{properties}; + if (@_) { + return $p->{test_files} = (@_ == 1 ? shift : [@_]); + } + return $self->find_test_files; +} + +sub expand_test_dir { + my ($self, $dir) = @_; + my $exts = $self->{properties}{test_file_exts}; + + return sort map { @{$self->rscan_dir($dir, qr{^[^.].*\Q$_\E$})} } @$exts + if $self->recursive_test_files; + + return sort map { glob File::Spec->catfile($dir, "*$_") } @$exts; +} + +sub ACTION_testdb { + my ($self) = @_; + local $self->{properties}{debugger} = 1; + $self->depends_on('test'); +} + +sub ACTION_testcover { + my ($self) = @_; + + unless (Module::Metadata->find_module_by_name('Devel::Cover')) { + warn("Cannot run testcover action unless Devel::Cover is installed.\n"); + return; + } + + $self->add_to_cleanup('coverage', 'cover_db'); + $self->depends_on('code'); + + # See whether any of the *.pm files have changed since last time + # testcover was run. If so, start over. + if (-e 'cover_db') { + my $pm_files = $self->rscan_dir + (File::Spec->catdir($self->blib, 'lib'), $self->file_qr('\.pm$') ); + my $cover_files = $self->rscan_dir('cover_db', sub {-f $_ and not /\.html$/}); + + $self->do_system(qw(cover -delete)) + unless $self->up_to_date($pm_files, $cover_files) + && $self->up_to_date($self->test_files, $cover_files); + } + + local $Test::Harness::switches = + local $Test::Harness::Switches = + local $ENV{HARNESS_PERL_SWITCHES} = "-MDevel::Cover"; + + $self->depends_on('test'); + $self->do_system('cover'); +} + +sub ACTION_code { + my ($self) = @_; + + # All installable stuff gets created in blib/ . + # Create blib/arch to keep blib.pm happy + my $blib = $self->blib; + $self->add_to_cleanup($blib); + File::Path::mkpath( File::Spec->catdir($blib, 'arch') ); + + if (my $split = $self->autosplit) { + $self->autosplit_file($_, $blib) for ref($split) ? @$split : ($split); + } + + foreach my $element (@{$self->build_elements}) { + my $method = "process_${element}_files"; + $method = "process_files_by_extension" unless $self->can($method); + $self->$method($element); + } + + $self->depends_on('config_data'); +} + +sub ACTION_build { + my $self = shift; + $self->log_info("Building " . $self->dist_name . "\n"); + $self->depends_on('code'); + $self->depends_on('docs'); +} + +sub process_files_by_extension { + my ($self, $ext) = @_; + + my $method = "find_${ext}_files"; + my $files = $self->can($method) ? $self->$method() : $self->_find_file_by_type($ext, 'lib'); + + while (my ($file, $dest) = each %$files) { + $self->copy_if_modified(from => $file, to => File::Spec->catfile($self->blib, $dest) ); + } +} + +sub process_support_files { + my $self = shift; + my $p = $self->{properties}; + return unless $p->{c_source}; + + my $files; + if (ref($p->{c_source}) eq "ARRAY") { + push @{$p->{include_dirs}}, @{$p->{c_source}}; + for my $path (@{$p->{c_source}}) { + push @$files, @{ $self->rscan_dir($path, $self->file_qr('\.c(c|p|pp|xx|\+\+)?$')) }; + } + } else { + push @{$p->{include_dirs}}, $p->{c_source}; + $files = $self->rscan_dir($p->{c_source}, $self->file_qr('\.c(c|p|pp|xx|\+\+)?$')); + } + + foreach my $file (@$files) { + push @{$p->{objects}}, $self->compile_c($file); + } +} + +sub process_share_dir_files { + my $self = shift; + my $files = $self->_find_share_dir_files; + return unless $files; + + # root for all File::ShareDir paths + my $share_prefix = File::Spec->catdir($self->blib, qw/lib auto share/); + + # copy all share files to blib + while (my ($file, $dest) = each %$files) { + $self->copy_if_modified( + from => $file, to => File::Spec->catfile( $share_prefix, $dest ) + ); + } +} + +sub _find_share_dir_files { + my $self = shift; + my $share_dir = $self->share_dir; + return unless $share_dir; + + my @file_map; + if ( $share_dir->{dist} ) { + my $prefix = "dist/".$self->dist_name; + push @file_map, $self->_share_dir_map( $prefix, $share_dir->{dist} ); + } + + if ( $share_dir->{module} ) { + for my $mod ( keys %{ $share_dir->{module} } ) { + (my $altmod = $mod) =~ s{::}{-}g; + my $prefix = "module/$altmod"; + push @file_map, $self->_share_dir_map($prefix, $share_dir->{module}{$mod}); + } + } + + return { @file_map }; +} + +sub _share_dir_map { + my ($self, $prefix, $list) = @_; + my %files; + for my $dir ( @$list ) { + for my $f ( @{ $self->rscan_dir( $dir, sub {-f} )} ) { + $f =~ s{\A.*?\Q$dir\E/}{}; + $files{"$dir/$f"} = "$prefix/$f"; + } + } + return %files; +} + +sub process_PL_files { + my ($self) = @_; + my $files = $self->find_PL_files; + + while (my ($file, $to) = each %$files) { + unless ($self->up_to_date( $file, $to )) { + $self->run_perl_script($file, [], [@$to]) or die "$file failed"; + $self->add_to_cleanup(@$to); + } + } +} + +sub process_xs_files { + my $self = shift; + return if $self->pureperl_only && $self->allow_pureperl; + my $files = $self->find_xs_files; + croak 'Can\'t build xs files under --pureperl-only' if %$files && $self->pureperl_only; + while (my ($from, $to) = each %$files) { + unless ($from eq $to) { + $self->add_to_cleanup($to); + $self->copy_if_modified( from => $from, to => $to ); + } + $self->process_xs($to); + } +} + +sub process_pod_files { shift()->process_files_by_extension(shift()) } +sub process_pm_files { shift()->process_files_by_extension(shift()) } + +sub process_script_files { + my $self = shift; + my $files = $self->find_script_files; + return unless keys %$files; + + my $script_dir = File::Spec->catdir($self->blib, 'script'); + File::Path::mkpath( $script_dir ); + + foreach my $file (keys %$files) { + my $result = $self->copy_if_modified($file, $script_dir, 'flatten') or next; + $self->fix_shebang_line($result) unless $self->is_vmsish; + $self->make_executable($result); + } +} + +sub find_PL_files { + my $self = shift; + if (my $files = $self->{properties}{PL_files}) { + # 'PL_files' is given as a Unix file spec, so we localize_file_path(). + + if (ref $files eq 'ARRAY') { + return { map {$_, [/^(.*)\.PL$/]} + map $self->localize_file_path($_), + @$files }; + + } elsif (ref $files eq 'HASH') { + my %out; + while (my ($file, $to) = each %$files) { + $out{ $self->localize_file_path($file) } = [ map $self->localize_file_path($_), + ref $to ? @$to : ($to) ]; + } + return \%out; + + } else { + die "'PL_files' must be a hash reference or array reference"; + } + } + + return unless -d 'lib'; + return { + map {$_, [/^(.*)\.PL$/i ]} + @{ $self->rscan_dir('lib', $self->file_qr('\.PL$')) } + }; +} + +sub find_pm_files { shift->_find_file_by_type('pm', 'lib') } +sub find_pod_files { shift->_find_file_by_type('pod', 'lib') } +sub find_xs_files { shift->_find_file_by_type('xs', 'lib') } + +sub find_script_files { + my $self = shift; + if (my $files = $self->script_files) { + # Always given as a Unix file spec. Values in the hash are + # meaningless, but we preserve if present. + return { map {$self->localize_file_path($_), $files->{$_}} keys %$files }; + } + + # No default location for script files + return {}; +} + +sub find_test_files { + my $self = shift; + my $p = $self->{properties}; + + if (my $files = $p->{test_files}) { + $files = [keys %$files] if ref $files eq 'HASH'; + $files = [map { -d $_ ? $self->expand_test_dir($_) : $_ } + map glob, + $self->split_like_shell($files)]; + + # Always given as a Unix file spec. + return [ map $self->localize_file_path($_), @$files ]; + + } else { + # Find all possible tests in t/ or test.pl + my @tests; + push @tests, 'test.pl' if -e 'test.pl'; + push @tests, $self->expand_test_dir('t') if -e 't' and -d _; + return \@tests; + } +} + +sub _find_file_by_type { + my ($self, $type, $dir) = @_; + + if (my $files = $self->{properties}{"${type}_files"}) { + # Always given as a Unix file spec + return { map $self->localize_file_path($_), %$files }; + } + + return {} unless -d $dir; + return { map {$_, $_} + map $self->localize_file_path($_), + grep !/\.\#/, + @{ $self->rscan_dir($dir, $self->file_qr("\\.$type\$")) } }; +} + +sub localize_file_path { + my ($self, $path) = @_; + return File::Spec->catfile( split m{/}, $path ); +} + +sub localize_dir_path { + my ($self, $path) = @_; + return File::Spec->catdir( split m{/}, $path ); +} + +sub fix_shebang_line { # Adapted from fixin() in ExtUtils::MM_Unix 1.35 + my ($self, @files) = @_; + my $c = ref($self) ? $self->{config} : 'Module::Build::Config'; + + my ($does_shbang) = $c->get('sharpbang') =~ /^\s*\#\!/; + for my $file (@files) { + open(my $FIXIN, '<', $file) or die "Can't process '$file': $!"; + local $/ = "\n"; + chomp(my $line = <$FIXIN>); + next unless $line =~ s/^\s*\#!\s*//; # Not a shebang file. + + my ($cmd, $arg) = (split(' ', $line, 2), ''); + next unless $cmd =~ /perl/i; + my $interpreter = $self->{properties}{perl}; + + $self->log_verbose("Changing sharpbang in $file to $interpreter\n"); + my $shb = ''; + $shb .= $c->get('sharpbang')."$interpreter $arg\n" if $does_shbang; + + # I'm not smart enough to know the ramifications of changing the + # embedded newlines here to \n, so I leave 'em in. + $shb .= qq{ +eval 'exec $interpreter $arg -S \$0 \${1+"\$\@"}' + if 0; # not running under some shell +} unless $self->is_windowsish; # this won't work on win32, so don't + + open(my $FIXOUT, '>', "$file.new") + or die "Can't create new $file: $!\n"; + + # Print out the new #! line (or equivalent). + local $\; + undef $/; # Was localized above + print $FIXOUT $shb, <$FIXIN>; + close $FIXIN; + close $FIXOUT; + + rename($file, "$file.bak") + or die "Can't rename $file to $file.bak: $!"; + + rename("$file.new", $file) + or die "Can't rename $file.new to $file: $!"; + + $self->delete_filetree("$file.bak") + or $self->log_warn("Couldn't clean up $file.bak, leaving it there"); + + $self->do_system($c->get('eunicefix'), $file) if $c->get('eunicefix') ne ':'; + } +} + + +sub ACTION_testpod { + my $self = shift; + $self->depends_on('docs'); + + eval q{use Test::Pod 0.95; 1} + or die "The 'testpod' action requires Test::Pod version 0.95"; + + my @files = sort keys %{$self->_find_pods($self->libdoc_dirs)}, + keys %{$self->_find_pods + ($self->bindoc_dirs, + exclude => [ $self->file_qr('\.bat$') ])} + or die "Couldn't find any POD files to test\n"; + + { package # hide from PAUSE + Module::Build::PodTester; # Don't want to pollute the main namespace + Test::Pod->import( tests => scalar @files ); + pod_file_ok($_) foreach @files; + } +} + +sub ACTION_testpodcoverage { + my $self = shift; + + $self->depends_on('docs'); + + eval q{use Test::Pod::Coverage 1.00; 1} + or die "The 'testpodcoverage' action requires ", + "Test::Pod::Coverage version 1.00"; + + # TODO this needs test coverage! + + # XXX work-around a bug in Test::Pod::Coverage previous to v1.09 + # Make sure we test the module in blib/ + local @INC = @INC; + my $p = $self->{properties}; + unshift(@INC, + # XXX any reason to include arch? + File::Spec->catdir($p->{base_dir}, $self->blib, 'lib'), + #File::Spec->catdir($p->{base_dir}, $self->blib, 'arch') + ); + + all_pod_coverage_ok(); +} + +sub ACTION_docs { + my $self = shift; + + $self->depends_on('code'); + $self->depends_on('manpages', 'html'); +} + +# Given a file type, will return true if the file type would normally +# be installed when neither install-base nor prefix has been set. +# I.e. it will be true only if the path is set from Config.pm or +# set explicitly by the user via install-path. +sub _is_default_installable { + my $self = shift; + my $type = shift; + return ( $self->install_destination($type) && + ( $self->install_path($type) || + $self->install_sets($self->installdirs)->{$type} ) + ) ? 1 : 0; +} + +sub _is_ActivePerl { +# return 0; + my $self = shift; + unless (exists($self->{_is_ActivePerl})) { + $self->{_is_ActivePerl} = (eval { require ActivePerl::DocTools; } || 0); + } + return $self->{_is_ActivePerl}; +} + +sub _is_ActivePPM { +# return 0; + my $self = shift; + unless (exists($self->{_is_ActivePPM})) { + $self->{_is_ActivePPM} = (eval { require ActivePerl::PPM; } || 0); + } + return $self->{_is_ActivePPM}; +} + +sub ACTION_manpages { + my $self = shift; + + return unless $self->_mb_feature('manpage_support'); + + $self->depends_on('code'); + + my %extra_manify_args = $self->{properties}{'extra_manify_args'} ? %{ $self->{properties}{'extra_manify_args'} } : (); + + foreach my $type ( qw(bin lib) ) { + next unless ( $self->invoked_action eq 'manpages' || $self->_is_default_installable("${type}doc")); + my $files = $self->_find_pods( $self->{properties}{"${type}doc_dirs"}, + exclude => [ $self->file_qr('\.bat$') ] ); + next unless %$files; + + my $sub = $self->can("manify_${type}_pods"); + $self->$sub( %extra_manify_args ) if defined( $sub ); + } +} + +sub manify_bin_pods { + my $self = shift; + my %podman_args = (section => 1, @_); # binaries go in section 1 + + my $files = $self->_find_pods( $self->{properties}{bindoc_dirs}, + exclude => [ $self->file_qr('\.bat$') ] ); + return unless keys %$files; + + my $mandir = File::Spec->catdir( $self->blib, 'bindoc' ); + File::Path::mkpath( $mandir, 0, oct(777) ); + + require Pod::Man; + foreach my $file (keys %$files) { + # Pod::Simple based parsers only support one document per instance. + # This is expected to change in a future version (Pod::Simple > 3.03). + my $parser = Pod::Man->new( %podman_args ); + my $manpage = $self->man1page_name( $file ) . '.' . + $self->config( 'man1ext' ); + my $outfile = File::Spec->catfile($mandir, $manpage); + next if $self->up_to_date( $file, $outfile ); + $self->log_verbose("Manifying $file -> $outfile\n"); + eval { $parser->parse_from_file( $file, $outfile ); 1 } + or $self->log_warn("Error creating '$outfile': $@\n"); + $files->{$file} = $outfile; + } +} + +sub manify_lib_pods { + my $self = shift; + my %podman_args = (section => 3, @_); # libraries go in section 3 + + my $files = $self->_find_pods($self->{properties}{libdoc_dirs}); + return unless keys %$files; + + my $mandir = File::Spec->catdir( $self->blib, 'libdoc' ); + File::Path::mkpath( $mandir, 0, oct(777) ); + + require Pod::Man; + while (my ($file, $relfile) = each %$files) { + # Pod::Simple based parsers only support one document per instance. + # This is expected to change in a future version (Pod::Simple > 3.03). + my $parser = Pod::Man->new( %podman_args ); + my $manpage = $self->man3page_name( $relfile ) . '.' . + $self->config( 'man3ext' ); + my $outfile = File::Spec->catfile( $mandir, $manpage); + next if $self->up_to_date( $file, $outfile ); + $self->log_verbose("Manifying $file -> $outfile\n"); + eval { $parser->parse_from_file( $file, $outfile ); 1 } + or $self->log_warn("Error creating '$outfile': $@\n"); + $files->{$file} = $outfile; + } +} + +sub _find_pods { + my ($self, $dirs, %args) = @_; + my %files; + foreach my $spec (@$dirs) { + my $dir = $self->localize_dir_path($spec); + next unless -e $dir; + + FILE: foreach my $file ( @{ $self->rscan_dir( $dir ) } ) { + foreach my $regexp ( @{ $args{exclude} } ) { + next FILE if $file =~ $regexp; + } + $file = $self->localize_file_path($file); + $files{$file} = File::Spec->abs2rel($file, $dir) if $self->contains_pod( $file ) + } + } + return \%files; +} + +sub contains_pod { + my ($self, $file) = @_; + return '' unless -T $file; # Only look at text files + + open(my $fh, '<', $file ) or die "Can't open $file: $!"; + while (my $line = <$fh>) { + return 1 if $line =~ /^\=(?:head|pod|item)/; + } + + return ''; +} + +sub ACTION_html { + my $self = shift; + + return unless $self->_mb_feature('HTML_support'); + + $self->depends_on('code'); + + foreach my $type ( qw(bin lib) ) { + next unless ( $self->invoked_action eq 'html' || $self->_is_default_installable("${type}html")); + $self->htmlify_pods( $type ); + } +} + +# 1) If it's an ActiveState perl install, we need to run +# ActivePerl::DocTools->UpdateTOC; +# 2) Links to other modules are not being generated +sub htmlify_pods { + my $self = shift; + my $type = shift; + my $htmldir = shift || File::Spec->catdir($self->blib, "${type}html"); + + $self->add_to_cleanup('pod2htm*'); + + my $pods = $self->_find_pods( $self->{properties}{"${type}doc_dirs"}, + exclude => [ $self->file_qr('\.(?:bat|com|html)$') ] ); + return unless %$pods; # nothing to do + + unless ( -d $htmldir ) { + File::Path::mkpath($htmldir, 0, oct(755)) + or die "Couldn't mkdir $htmldir: $!"; + } + + my @rootdirs = ($type eq 'bin') ? qw(bin) : + $self->installdirs eq 'core' ? qw(lib) : qw(site lib); + my $podroot = $ENV{PERL_CORE} + ? File::Basename::dirname($ENV{PERL_CORE}) + : $self->original_prefix('core'); + + my $htmlroot = $self->install_sets('core')->{libhtml}; + my $podpath; + unless (defined $self->args('html_links') and !$self->args('html_links')) { + my @podpath = ( (map { File::Spec->abs2rel($_ ,$podroot) } grep { -d } + ( $self->install_sets('core', 'lib'), # lib + $self->install_sets('core', 'bin'), # bin + $self->install_sets('site', 'lib'), # site/lib + ) ), File::Spec->rel2abs($self->blib) ); + + $podpath = $ENV{PERL_CORE} + ? File::Spec->catdir($podroot, 'lib') + : join(":", map { tr,:\\,|/,; $_ } @podpath); + } + + my $blibdir = join('/', File::Spec->splitdir( + (File::Spec->splitpath(File::Spec->rel2abs($htmldir),1))[1]),'' + ); + + my ($with_ActiveState, $htmltool); + + if ( $with_ActiveState = $self->_is_ActivePerl + && eval { require ActivePerl::DocTools::Pod; 1 } + ) { + my $tool_v = ActiveState::DocTools::Pod->VERSION; + $htmltool = "ActiveState::DocTools::Pod"; + $htmltool .= " $tool_v" if $tool_v && length $tool_v; + } + else { + require Module::Build::PodParser; + require Pod::Html; + $htmltool = "Pod::Html " . Pod::Html->VERSION; + } + $self->log_verbose("Converting Pod to HTML with $htmltool\n"); + + my $errors = 0; + + POD: + foreach my $pod ( keys %$pods ) { + + my ($name, $path) = File::Basename::fileparse($pods->{$pod}, + $self->file_qr('\.(?:pm|plx?|pod)$') + ); + my @dirs = File::Spec->splitdir( File::Spec->canonpath( $path ) ); + pop( @dirs ) if scalar(@dirs) && $dirs[-1] eq File::Spec->curdir; + + my $fulldir = File::Spec->catdir($htmldir, @rootdirs, @dirs); + my $tmpfile = File::Spec->catfile($fulldir, "${name}.tmp"); + my $outfile = File::Spec->catfile($fulldir, "${name}.html"); + my $infile = File::Spec->abs2rel($pod); + + next if $self->up_to_date($infile, $outfile); + + unless ( -d $fulldir ){ + File::Path::mkpath($fulldir, 0, oct(755)) + or die "Couldn't mkdir $fulldir: $!"; + } + + $self->log_verbose("HTMLifying $infile -> $outfile\n"); + if ( $with_ActiveState ) { + my $depth = @rootdirs + @dirs; + my %opts = ( infile => $infile, + outfile => $tmpfile, + ( defined($podpath) ? (podpath => $podpath) : ()), + podroot => $podroot, + index => 1, + depth => $depth, + ); + eval { + ActivePerl::DocTools::Pod::pod2html(%opts); + 1; + } or $self->log_warn("[$htmltool] pod2html (" . + join(", ", map { "q{$_} => q{$opts{$_}}" } (keys %opts)) . ") failed: $@"); + } else { + my $path2root = File::Spec->catdir((File::Spec->updir) x @dirs); + open(my $fh, '<', $infile) or die "Can't read $infile: $!"; + my $abstract = Module::Build::PodParser->new(fh => $fh)->get_abstract(); + + my $title = join( '::', (@dirs, $name) ); + $title .= " - $abstract" if $abstract; + + my @opts = ( + "--title=$title", + ( defined($podpath) ? "--podpath=$podpath" : ()), + "--infile=$infile", + "--outfile=$tmpfile", + "--podroot=$podroot", + ($path2root ? "--htmlroot=$path2root" : ()), + ); + + unless ( eval{Pod::Html->VERSION(1.12)} ) { + push( @opts, ('--flush') ); # caching removed in 1.12 + } + + if ( eval{Pod::Html->VERSION(1.12)} ) { + push( @opts, ('--header', '--backlink') ); + } elsif ( eval{Pod::Html->VERSION(1.03)} ) { + push( @opts, ('--header', '--backlink=Back to Top') ); + } + + $self->log_verbose("P::H::pod2html @opts\n"); + { + my $orig = Cwd::getcwd(); + eval { Pod::Html::pod2html(@opts); 1 } + or $self->log_warn("[$htmltool] pod2html( " . + join(", ", map { "q{$_}" } @opts) . ") failed: $@"); + chdir($orig); + } + } + # We now have to cleanup the resulting html file + if ( ! -r $tmpfile ) { + $errors++; + next POD; + } + open(my $fh, '<', $tmpfile) or die "Can't read $tmpfile: $!"; + my $html = join('',<$fh>); + close $fh; + if (!$self->_is_ActivePerl) { + # These fixups are already done by AP::DT:P:pod2html + # The output from pod2html is NOT XHTML! + # IE6+ will display content that is not valid for DOCTYPE + $html =~ s#^<!DOCTYPE .*?>#<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">#im; + $html =~ s#<html xmlns="http://www.w3.org/1999/xhtml">#<html>#i; + + # IE6+ will not display local HTML files with strict + # security without this comment + $html =~ s#<head>#<head>\n<!-- saved from url=(0017)http://localhost/ -->#i; + } + # Fixup links that point to our temp blib + $html =~ s/\Q$blibdir\E//g; + + open($fh, '>', $outfile) or die "Can't write $outfile: $!"; + print $fh $html; + close $fh; + unlink($tmpfile); + } + + return ! $errors; + +} + +# Adapted from ExtUtils::MM_Unix +sub man1page_name { + my $self = shift; + return File::Basename::basename( shift ); +} + +# Adapted from ExtUtils::MM_Unix and Pod::Man +# Depending on M::B's dependency policy, it might make more sense to refactor +# Pod::Man::begin_pod() to extract a name() methods, and use them... +# -spurkis +sub man3page_name { + my $self = shift; + my ($vol, $dirs, $file) = File::Spec->splitpath( shift ); + my @dirs = File::Spec->splitdir( File::Spec->canonpath($dirs) ); + + # Remove known exts from the base name + $file =~ s/\.p(?:od|m|l)\z//i; + + return join( $self->manpage_separator, @dirs, $file ); +} + +sub manpage_separator { + return '::'; +} + +# For systems that don't have 'diff' executable, should use Algorithm::Diff +sub ACTION_diff { + my $self = shift; + $self->depends_on('build'); + my $local_lib = File::Spec->rel2abs('lib'); + my @myINC = grep {$_ ne $local_lib} @INC; + + # The actual install destination might not be in @INC, so check there too. + push @myINC, map $self->install_destination($_), qw(lib arch); + + my @flags = @{$self->{args}{ARGV}}; + @flags = $self->split_like_shell($self->{args}{flags} || '') unless @flags; + + my $installmap = $self->install_map; + delete $installmap->{read}; + delete $installmap->{write}; + + my $text_suffix = $self->file_qr('\.(pm|pod)$'); + + while (my $localdir = each %$installmap) { + my @localparts = File::Spec->splitdir($localdir); + my $files = $self->rscan_dir($localdir, sub {-f}); + + foreach my $file (@$files) { + my @parts = File::Spec->splitdir($file); + @parts = @parts[@localparts .. $#parts]; # Get rid of blib/lib or similar + + my $installed = Module::Metadata->find_module_by_name( + join('::', @parts), \@myINC ); + if (not $installed) { + print "Only in lib: $file\n"; + next; + } + + my $status = File::Compare::compare($installed, $file); + next if $status == 0; # Files are the same + die "Can't compare $installed and $file: $!" if $status == -1; + + if ($file =~ $text_suffix) { + $self->do_system('diff', @flags, $installed, $file); + } else { + print "Binary files $file and $installed differ\n"; + } + } + } +} + +sub ACTION_pure_install { + shift()->depends_on('install'); +} + +sub ACTION_install { + my ($self) = @_; + require ExtUtils::Install; + $self->depends_on('build'); + # RT#63003 suggest that odd circumstances that we might wind up + # in a different directory than we started, so wrap with _do_in_dir to + # ensure we get back to where we started; hope this fixes it! + $self->_do_in_dir( ".", sub { + ExtUtils::Install::install( + $self->install_map, $self->verbose, 0, $self->{args}{uninst}||0 + ); + }); + if ($self->_is_ActivePerl && $self->{_completed_actions}{html}) { + $self->log_info("Building ActivePerl Table of Contents\n"); + eval { ActivePerl::DocTools::WriteTOC(verbose => $self->verbose ? 1 : 0); 1; } + or $self->log_warn("AP::DT:: WriteTOC() failed: $@"); + } + if ($self->_is_ActivePPM) { + # We touch 'lib/perllocal.pod'. There is an existing logic in subroutine _init_db() + # of 'ActivePerl/PPM/InstallArea.pm' that says that if 'lib/perllocal.pod' has a 'date-last-touched' + # greater than that of the PPM SQLite databases ('etc/ppm-perl-area.db' and/or + # 'site/etc/ppm-site-area.db') then the PPM SQLite databases are rebuilt from scratch. + + # in the following line, 'perllocal.pod' this is *always* 'lib/perllocal.pod', never 'site/lib/perllocal.pod' + my $F_perllocal = File::Spec->catfile($self->install_sets('core', 'lib'), 'perllocal.pod'); + my $dt_stamp = time; + + $self->log_info("For ActivePerl's PPM: touch '$F_perllocal'\n"); + + open my $perllocal, ">>", $F_perllocal; + close $perllocal; + utime($dt_stamp, $dt_stamp, $F_perllocal); + } +} + +sub ACTION_fakeinstall { + my ($self) = @_; + require ExtUtils::Install; + my $eui_version = ExtUtils::Install->VERSION; + if ( $eui_version < 1.32 ) { + $self->log_warn( + "The 'fakeinstall' action requires Extutils::Install 1.32 or later.\n" + . "(You only have version $eui_version)." + ); + return; + } + $self->depends_on('build'); + ExtUtils::Install::install($self->install_map, !$self->quiet, 1, $self->{args}{uninst}||0); +} + +sub ACTION_versioninstall { + my ($self) = @_; + + die "You must have only.pm 0.25 or greater installed for this operation: $@\n" + unless eval { require only; 'only'->VERSION(0.25); 1 }; + + $self->depends_on('build'); + + my %onlyargs = map {exists($self->{args}{$_}) ? ($_ => $self->{args}{$_}) : ()} + qw(version versionlib); + only::install::install(%onlyargs); +} + +sub ACTION_installdeps { + my ($self) = @_; + + # XXX include feature prerequisites as optional prereqs? + + my $info = $self->_enum_prereqs; + if (! $info ) { + $self->log_info( "No prerequisites detected\n" ); + return; + } + + my $failures = $self->prereq_failures($info); + if ( ! $failures ) { + $self->log_info( "All prerequisites satisfied\n" ); + return; + } + + my @install; + while (my ($type, $prereqs) = each %$failures) { + if($type =~ m/^(?:\w+_)?requires$/) { + push(@install, keys %$prereqs); + next; + } + $self->log_info("Checking optional dependencies:\n"); + while (my ($module, $status) = each %$prereqs) { + push(@install, $module) if($self->y_n("Install $module?", 'y')); + } + } + + return unless @install; + + my ($command, @opts) = $self->split_like_shell($self->cpan_client); + + # relative command should be relative to our active Perl + # so we need to locate that command + if ( ! File::Spec->file_name_is_absolute( $command ) ) { + # prefer site to vendor to core + my @loc = ( 'site', 'vendor', '' ); + my @bindirs = File::Basename::dirname($self->perl); + push @bindirs, + map { + ($self->config->{"install${_}bin"}, $self->config->{"install${_}script"}) + } @loc; + for my $d ( @bindirs ) { + my $abs_cmd = $self->find_command(File::Spec->catfile( $d, $command )); + if ( defined $abs_cmd ) { + $command = $abs_cmd; + last; + } + } + } + + $self->do_system($command, @opts, @install); +} + +sub ACTION_clean { + my ($self) = @_; + $self->log_info("Cleaning up build files\n"); + foreach my $item (map glob($_), $self->cleanup) { + $self->delete_filetree($item); + } +} + +sub ACTION_realclean { + my ($self) = @_; + $self->depends_on('clean'); + $self->log_info("Cleaning up configuration files\n"); + $self->delete_filetree( + $self->config_dir, $self->mymetafile, $self->mymetafile2, $self->build_script + ); +} + +sub ACTION_ppd { + my ($self) = @_; + + require Module::Build::PPMMaker; + my $ppd = Module::Build::PPMMaker->new(); + my $file = $ppd->make_ppd(%{$self->{args}}, build => $self); + $self->add_to_cleanup($file); +} + +sub ACTION_ppmdist { + my ($self) = @_; + + $self->depends_on( 'build' ); + + my $ppm = $self->ppm_name; + $self->delete_filetree( $ppm ); + $self->log_info( "Creating $ppm\n" ); + $self->add_to_cleanup( $ppm, "$ppm.tar.gz" ); + + my %types = ( # translate types/dirs to those expected by ppm + lib => 'lib', + arch => 'arch', + bin => 'bin', + script => 'script', + bindoc => 'man1', + libdoc => 'man3', + binhtml => undef, + libhtml => undef, + ); + + foreach my $type ($self->install_types) { + next if exists( $types{$type} ) && !defined( $types{$type} ); + + my $dir = File::Spec->catdir( $self->blib, $type ); + next unless -e $dir; + + my $files = $self->rscan_dir( $dir ); + foreach my $file ( @$files ) { + next unless -f $file; + my $rel_file = + File::Spec->abs2rel( File::Spec->rel2abs( $file ), + File::Spec->rel2abs( $dir ) ); + my $to_file = + File::Spec->catfile( $ppm, 'blib', + exists( $types{$type} ) ? $types{$type} : $type, + $rel_file ); + $self->copy_if_modified( from => $file, to => $to_file ); + } + } + + foreach my $type ( qw(bin lib) ) { + $self->htmlify_pods( $type, File::Spec->catdir($ppm, 'blib', 'html') ); + } + + # create a tarball; + # the directory tar'ed must be blib so we need to do a chdir first + my $target = File::Spec->catfile( File::Spec->updir, $ppm ); + $self->_do_in_dir( $ppm, sub { $self->make_tarball( 'blib', $target ) } ); + + $self->depends_on( 'ppd' ); + + $self->delete_filetree( $ppm ); +} + +sub ACTION_pardist { + my ($self) = @_; + + # Need PAR::Dist + if ( not eval { require PAR::Dist; PAR::Dist->VERSION(0.17) } ) { + $self->log_warn( + "In order to create .par distributions, you need to\n" + . "install PAR::Dist first." + ); + return(); + } + + $self->depends_on( 'build' ); + + return PAR::Dist::blib_to_par( + name => $self->dist_name, + version => $self->dist_version, + ); +} + +sub ACTION_dist { + my ($self) = @_; + + # MUST dispatch() and not depends_ok() so we generate a clean distdir + $self->dispatch('distdir'); + + my $dist_dir = $self->dist_dir; + + $self->make_tarball($dist_dir); + $self->delete_filetree($dist_dir); +} + +sub ACTION_distcheck { + my ($self) = @_; + + $self->_check_manifest_skip unless $self->invoked_action eq 'distclean'; + + require ExtUtils::Manifest; + local $^W; # ExtUtils::Manifest is not warnings clean. + my ($missing, $extra) = ExtUtils::Manifest::fullcheck(); + + return unless @$missing || @$extra; + + my $msg = "MANIFEST appears to be out of sync with the distribution\n"; + if ( $self->invoked_action eq 'distcheck' ) { + die $msg; + } else { + warn $msg; + } +} + +sub _check_mymeta_skip { + my $self = shift; + my $maniskip = shift || 'MANIFEST.SKIP'; + + require ExtUtils::Manifest; + local $^W; # ExtUtils::Manifest is not warnings clean. + + # older ExtUtils::Manifest had a private _maniskip + my $skip_factory = ExtUtils::Manifest->can('maniskip') + || ExtUtils::Manifest->can('_maniskip'); + + my $mymetafile = $self->mymetafile; + # we can't check it, just add it anyway to be safe + for my $file ( $self->mymetafile, $self->mymetafile2 ) { + unless ( $skip_factory && $skip_factory->($maniskip)->($file) ) { + $self->log_warn("File '$maniskip' does not include '$file'. Adding it now.\n"); + my $safe = quotemeta($file); + $self->_append_maniskip("^$safe\$", $maniskip); + } + } +} + +sub _add_to_manifest { + my ($self, $manifest, $lines) = @_; + $lines = [$lines] unless ref $lines; + + my $existing_files = $self->_read_manifest($manifest); + return unless defined( $existing_files ); + + @$lines = grep {!exists $existing_files->{$_}} @$lines + or return; + + my $mode = (stat $manifest)[2]; + chmod($mode | oct(222), $manifest) or die "Can't make $manifest writable: $!"; + + open(my $fh, '<', $manifest) or die "Can't read $manifest: $!"; + my $last_line = (<$fh>)[-1] || "\n"; + my $has_newline = $last_line =~ /\n$/; + close $fh; + + open($fh, '>>', $manifest) or die "Can't write to $manifest: $!"; + print $fh "\n" unless $has_newline; + print $fh map "$_\n", @$lines; + close $fh; + chmod($mode, $manifest); + + $self->log_verbose(map "Added to $manifest: $_\n", @$lines); +} + +sub _sign_dir { + my ($self, $dir) = @_; + + unless (eval { require Module::Signature; 1 }) { + $self->log_warn("Couldn't load Module::Signature for 'distsign' action:\n $@\n"); + return; + } + + # Add SIGNATURE to the MANIFEST + { + my $manifest = File::Spec->catfile($dir, 'MANIFEST'); + die "Signing a distribution requires a MANIFEST file" unless -e $manifest; + $self->_add_to_manifest($manifest, "SIGNATURE Added here by Module::Build"); + } + + # Would be nice if Module::Signature took a directory argument. + + $self->_do_in_dir($dir, sub {local $Module::Signature::Quiet = 1; Module::Signature::sign()}); +} + +sub _do_in_dir { + my ($self, $dir, $do) = @_; + + my $start_dir = File::Spec->rel2abs($self->cwd); + chdir $dir or die "Can't chdir() to $dir: $!"; + eval {$do->()}; + my @err = $@ ? ($@) : (); + chdir $start_dir or push @err, "Can't chdir() back to $start_dir: $!"; + die join "\n", @err if @err; +} + +sub ACTION_distsign { + my ($self) = @_; + { + local $self->{properties}{sign} = 0; # We'll sign it ourselves + $self->depends_on('distdir') unless -d $self->dist_dir; + } + $self->_sign_dir($self->dist_dir); +} + +sub ACTION_skipcheck { + my ($self) = @_; + + require ExtUtils::Manifest; + local $^W; # ExtUtils::Manifest is not warnings clean. + ExtUtils::Manifest::skipcheck(); +} + +sub ACTION_distclean { + my ($self) = @_; + + $self->depends_on('realclean'); + $self->depends_on('distcheck'); +} + +sub do_create_makefile_pl { + my $self = shift; + require Module::Build::Compat; + $self->log_info("Creating Makefile.PL\n"); + eval { Module::Build::Compat->create_makefile_pl($self->create_makefile_pl, $self, @_) }; + if ( $@ ) { + 1 while unlink 'Makefile.PL'; + die "$@\n"; + } + $self->_add_to_manifest('MANIFEST', 'Makefile.PL'); +} + +sub do_create_license { + my $self = shift; + $self->log_info("Creating LICENSE file\n"); + + if ( ! $self->_mb_feature('license_creation') ) { + $self->_warn_mb_feature_deps('license_creation'); + die "Aborting.\n"; + } + + my $l = $self->license + or die "Can't create LICENSE file: No license specified\n"; + + my $license = $self->_software_license_object + or die << "HERE"; +Can't create LICENSE file: '$l' is not a valid license key +or Software::License subclass; +HERE + + $self->delete_filetree('LICENSE'); + + open(my $fh, '>', 'LICENSE') + or die "Can't write LICENSE file: $!"; + print $fh $license->fulltext; + close $fh; + + $self->_add_to_manifest('MANIFEST', 'LICENSE'); +} + +sub do_create_readme { + my $self = shift; + $self->delete_filetree('README'); + + my $docfile = $self->_main_docfile; + unless ( $docfile ) { + $self->log_warn(<<EOF); +Cannot create README: can't determine which file contains documentation; +Must supply either 'dist_version_from', or 'module_name' parameter. +EOF + return; + } + + # work around some odd Pod::Readme->new() failures in test reports by + # confirming that new() is available + if ( eval {require Pod::Readme; Pod::Readme->can('new') } ) { + $self->log_info("Creating README using Pod::Readme\n"); + + my $parser = Pod::Readme->new; + $parser->parse_from_file($docfile, 'README', @_); + + } elsif ( eval {require Pod::Text; 1} ) { + $self->log_info("Creating README using Pod::Text\n"); + + if ( open(my $fh, '>', 'README') ) { + local $^W = 0; + no strict "refs"; + + # work around bug in Pod::Text 3.01, which expects + # Pod::Simple::parse_file to take input and output filehandles + # when it actually only takes an input filehandle + + my $old_parse_file; + $old_parse_file = \&{"Pod::Simple::parse_file"} + and + local *{"Pod::Simple::parse_file"} = sub { + my $self = shift; + $self->output_fh($_[1]) if $_[1]; + $self->$old_parse_file($_[0]); + } + if $Pod::Text::VERSION + == 3.01; # Split line to avoid evil version-finder + + Pod::Text::pod2text( $docfile, $fh ); + + close $fh; + } else { + $self->log_warn( + "Cannot create 'README' file: Can't open file for writing\n" ); + return; + } + + } else { + $self->log_warn("Can't load Pod::Readme or Pod::Text to create README\n"); + return; + } + + $self->_add_to_manifest('MANIFEST', 'README'); +} + +sub _main_docfile { + my $self = shift; + if ( my $pm_file = $self->dist_version_from ) { + (my $pod_file = $pm_file) =~ s/.pm$/.pod/; + return (-e $pod_file ? $pod_file : $pm_file); + } else { + return undef; + } +} + +sub do_create_bundle_inc { + my $self = shift; + my $dist_inc = File::Spec->catdir( $self->dist_dir, 'inc' ); + require inc::latest; + inc::latest->write($dist_inc, @{$self->bundle_inc_preload}); + inc::latest->bundle_module($_, $dist_inc) for @{$self->bundle_inc}; + return 1; +} + +sub ACTION_distdir { + my ($self) = @_; + + if ( @{$self->bundle_inc} && ! $self->_mb_feature('inc_bundling_support') ) { + $self->_warn_mb_feature_deps('inc_bundling_support'); + die "Aborting.\n"; + } + + $self->depends_on('distmeta'); + + my $dist_files = $self->_read_manifest('MANIFEST') + or die "Can't create distdir without a MANIFEST file - run 'manifest' action first.\n"; + delete $dist_files->{SIGNATURE}; # Don't copy, create a fresh one + die "No files found in MANIFEST - try running 'manifest' action?\n" + unless ($dist_files and keys %$dist_files); + my $metafile = $self->metafile; + $self->log_warn("*** Did you forget to add $metafile to the MANIFEST?\n") + unless exists $dist_files->{$metafile}; + + my $dist_dir = $self->dist_dir; + $self->delete_filetree($dist_dir); + $self->log_info("Creating $dist_dir\n"); + $self->add_to_cleanup($dist_dir); + + foreach my $file (keys %$dist_files) { + next if $file =~ m{^MYMETA\.}; # Double check that we skip MYMETA.* + my $new = $self->copy_if_modified(from => $file, to_dir => $dist_dir, verbose => 0); + } + + $self->do_create_bundle_inc if @{$self->bundle_inc}; + + $self->_sign_dir($dist_dir) if $self->{properties}{sign}; +} + +sub ACTION_disttest { + my ($self) = @_; + + $self->depends_on('distdir'); + + $self->_do_in_dir + ( $self->dist_dir, + sub { + local $ENV{AUTHOR_TESTING} = 1; + local $ENV{RELEASE_TESTING} = 1; + + # XXX could be different names for scripts + + $self->run_perl_script('Build.PL') # XXX Should this be run w/ --nouse-rcfile + or die "Error executing 'Build.PL' in dist directory: $!"; + $self->run_perl_script($self->build_script) + or die "Error executing $self->build_script in dist directory: $!"; + $self->run_perl_script($self->build_script, [], ['test']) + or die "Error executing 'Build test' in dist directory"; + }); +} + +sub ACTION_distinstall { + my ($self, @args) = @_; + + $self->depends_on('distdir'); + + $self->_do_in_dir ( $self->dist_dir, + sub { + $self->run_perl_script('Build.PL') + or die "Error executing 'Build.PL' in dist directory: $!"; + $self->run_perl_script($self->build_script) + or die "Error executing $self->build_script in dist directory: $!"; + $self->run_perl_script($self->build_script, [], ['install']) + or die "Error executing 'Build install' in dist directory"; + } + ); +} + +=begin private + + my $has_include = $build->_eumanifest_has_include; + +Returns true if the installed version of ExtUtils::Manifest supports +#include and #include_default directives. False otherwise. + +=end private + +=cut + +# #!include and #!include_default were added in 1.50 +sub _eumanifest_has_include { + my $self = shift; + + require ExtUtils::Manifest; + return eval { ExtUtils::Manifest->VERSION(1.50); 1 }; +} + + +=begin private + + my $maniskip_file = $build->_default_maniskip; + +Returns the location of the installed MANIFEST.SKIP file used by +default. + +=end private + +=cut + +sub _default_maniskip { + my $self = shift; + + my $default_maniskip; + for my $dir (@INC) { + $default_maniskip = File::Spec->catfile($dir, "ExtUtils", "MANIFEST.SKIP"); + last if -r $default_maniskip; + } + + return $default_maniskip; +} + + +=begin private + + my $content = $build->_slurp($file); + +Reads $file and returns the $content. + +=end private + +=cut + +sub _slurp { + my $self = shift; + my $file = shift; + my $mode = shift || ""; + open my $fh, "<$mode", $file or croak "Can't open $file for reading: $!"; + local $/; + return <$fh>; +} + +sub _spew { + my $self = shift; + my $file = shift; + my $content = shift || ""; + my $mode = shift || ""; + open my $fh, ">$mode", $file or croak "Can't open $file for writing: $!"; + print {$fh} $content; + close $fh; +} + +sub _case_tolerant { + my $self = shift; + if ( ref $self ) { + $self->{_case_tolerant} = File::Spec->case_tolerant + unless defined($self->{_case_tolerant}); + return $self->{_case_tolerant}; + } + else { + return File::Spec->case_tolerant; + } +} + +sub _append_maniskip { + my $self = shift; + my $skip = shift; + my $file = shift || 'MANIFEST.SKIP'; + return unless defined $skip && length $skip; + open(my $fh, '>>', $file) + or die "Can't open $file: $!"; + + print $fh "$skip\n"; + close $fh; +} + +sub _write_default_maniskip { + my $self = shift; + my $file = shift || 'MANIFEST.SKIP'; + open(my $fh, '>', $file) + or die "Can't open $file: $!"; + + my $content = $self->_eumanifest_has_include ? "#!include_default\n" + : $self->_slurp( $self->_default_maniskip ); + + $content .= <<'EOF'; +# Avoid configuration metadata file +^MYMETA\. + +# Avoid Module::Build generated and utility files. +\bBuild$ +\bBuild.bat$ +\b_build +\bBuild.COM$ +\bBUILD.COM$ +\bbuild.com$ +^MANIFEST\.SKIP + +# Avoid archives of this distribution +EOF + + # Skip, for example, 'Module-Build-0.27.tar.gz' + $content .= '\b'.$self->dist_name.'-[\d\.\_]+'."\n"; + + print $fh $content; + + close $fh; + + return; +} + +sub _check_manifest_skip { + my ($self) = @_; + + my $maniskip = 'MANIFEST.SKIP'; + + if ( ! -e $maniskip ) { + $self->log_warn("File '$maniskip' does not exist: Creating a temporary '$maniskip'\n"); + $self->_write_default_maniskip($maniskip); + $self->_unlink_on_exit($maniskip); + } + else { + # MYMETA must not be added to MANIFEST, so always confirm the skip + $self->_check_mymeta_skip( $maniskip ); + } + + return; +} + +sub ACTION_manifest { + my ($self) = @_; + + $self->_check_manifest_skip; + + require ExtUtils::Manifest; # ExtUtils::Manifest is not warnings clean. + local ($^W, $ExtUtils::Manifest::Quiet) = (0,1); + ExtUtils::Manifest::mkmanifest(); +} + +sub ACTION_manifest_skip { + my ($self) = @_; + + if ( -e 'MANIFEST.SKIP' ) { + $self->log_warn("MANIFEST.SKIP already exists.\n"); + return 0; + } + $self->log_info("Creating a new MANIFEST.SKIP file\n"); + return $self->_write_default_maniskip; + return -e 'MANIFEST.SKIP' +} + +# Case insensitive regex for files +sub file_qr { + return shift->{_case_tolerant} ? qr($_[0])i : qr($_[0]); +} + +sub dist_dir { + my ($self) = @_; + my $dir = join "-", $self->dist_name, $self->dist_version; + $dir .= "-" . $self->dist_suffix if $self->dist_suffix; + return $dir; +} + +sub ppm_name { + my $self = shift; + return 'PPM-' . $self->dist_dir; +} + +sub _files_in { + my ($self, $dir) = @_; + return unless -d $dir; + + local *DH; + opendir DH, $dir or die "Can't read directory $dir: $!"; + + my @files; + while (defined (my $file = readdir DH)) { + my $full_path = File::Spec->catfile($dir, $file); + next if -d $full_path; + push @files, $full_path; + } + return @files; +} + +sub share_dir { + my $self = shift; + my $p = $self->{properties}; + + $p->{share_dir} = shift if @_; + + # Always coerce to proper hash form + if ( ! defined $p->{share_dir} ) { + return; + } + elsif ( ! ref $p->{share_dir} ) { + # scalar -- treat as a single 'dist' directory + $p->{share_dir} = { dist => [ $p->{share_dir} ] }; + } + elsif ( ref $p->{share_dir} eq 'ARRAY' ) { + # array -- treat as a list of 'dist' directories + $p->{share_dir} = { dist => $p->{share_dir} }; + } + elsif ( ref $p->{share_dir} eq 'HASH' ) { + # hash -- check structure + my $share_dir = $p->{share_dir}; + # check dist key + if ( defined $share_dir->{dist} ) { + if ( ! ref $share_dir->{dist} ) { + # scalar, so upgrade to arrayref + $share_dir->{dist} = [ $share_dir->{dist} ]; + } + elsif ( ref $share_dir->{dist} ne 'ARRAY' ) { + die "'dist' key in 'share_dir' must be scalar or arrayref"; + } + } + # check module key + if ( defined $share_dir->{module} ) { + my $mod_hash = $share_dir->{module}; + if ( ref $mod_hash eq 'HASH' ) { + for my $k ( keys %$mod_hash ) { + if ( ! ref $mod_hash->{$k} ) { + $mod_hash->{$k} = [ $mod_hash->{$k} ]; + } + elsif( ref $mod_hash->{$k} ne 'ARRAY' ) { + die "modules in 'module' key of 'share_dir' must be scalar or arrayref"; + } + } + } + else { + die "'module' key in 'share_dir' must be hashref"; + } + } + } + else { + die "'share_dir' must be hashref, arrayref or string"; + } + + return $p->{share_dir}; +} + +sub script_files { + my $self = shift; + + for ($self->{properties}{script_files}) { + $_ = shift if @_; + next unless $_; + + # Always coerce into a hash + return $_ if ref $_ eq 'HASH'; + return $_ = { map {$_,1} @$_ } if ref $_ eq 'ARRAY'; + + die "'script_files' must be a hashref, arrayref, or string" if ref(); + + return $_ = { map {$_,1} $self->_files_in( $_ ) } if -d $_; + return $_ = {$_ => 1}; + } + + my %pl_files = map { + File::Spec->canonpath( $_ ) => 1 + } keys %{ $self->PL_files || {} }; + + my @bin_files = $self->_files_in('bin'); + + my %bin_map = map { + $_ => File::Spec->canonpath( $_ ) + } @bin_files; + + return $_ = { map {$_ => 1} grep !$pl_files{$bin_map{$_}}, @bin_files }; +} +BEGIN { *scripts = \&script_files; } + +{ + my %licenses = ( + perl => 'Perl_5', + apache => 'Apache_2_0', + apache_1_1 => 'Apache_1_1', + artistic => 'Artistic_1', + artistic_2 => 'Artistic_2', + lgpl => 'LGPL_2_1', + lgpl2 => 'LGPL_2_1', + lgpl3 => 'LGPL_3_0', + bsd => 'BSD', + gpl => 'GPL_1', + gpl2 => 'GPL_2', + gpl3 => 'GPL_3', + mit => 'MIT', + mozilla => 'Mozilla_1_1', + restrictive => 'Restricted', + open_source => undef, + unrestricted => undef, + unknown => undef, + ); + + # TODO - would be nice to not have these here, since they're more + # properly stored only in Software::License + my %license_urls = ( + perl => 'http://dev.perl.org/licenses/', + apache => 'http://apache.org/licenses/LICENSE-2.0', + apache_1_1 => 'http://apache.org/licenses/LICENSE-1.1', + artistic => 'http://opensource.org/licenses/artistic-license.php', + artistic_2 => 'http://opensource.org/licenses/artistic-license-2.0.php', + lgpl => 'http://opensource.org/licenses/lgpl-license.php', + lgpl2 => 'http://opensource.org/licenses/lgpl-2.1.php', + lgpl3 => 'http://opensource.org/licenses/lgpl-3.0.html', + bsd => 'http://opensource.org/licenses/bsd-license.php', + gpl => 'http://opensource.org/licenses/gpl-license.php', + gpl2 => 'http://opensource.org/licenses/gpl-2.0.php', + gpl3 => 'http://opensource.org/licenses/gpl-3.0.html', + mit => 'http://opensource.org/licenses/mit-license.php', + mozilla => 'http://opensource.org/licenses/mozilla1.1.php', + restrictive => undef, + open_source => undef, + unrestricted => undef, + unknown => undef, + ); + sub valid_licenses { + return \%licenses; + } + sub _license_url { + return $license_urls{$_[1]}; + } +} + +sub _software_license_class { + my ($self, $license) = @_; + if ($self->valid_licenses->{$license} && eval { require Software::LicenseUtils; Software::LicenseUtils->VERSION(0.103009) }) { + my @classes = Software::LicenseUtils->guess_license_from_meta_key($license, 1); + if (@classes == 1) { + eval "require $classes[0]"; + return $classes[0]; + } + } + LICENSE: for my $l ( $self->valid_licenses->{ $license }, $license ) { + next unless defined $l; + my $trial = "Software::License::" . $l; + if ( eval "require Software::License; Software::License->VERSION(0.014); require $trial; 1" ) { + return $trial; + } + } + return; +} + +# use mapping or license name directly +sub _software_license_object { + my ($self) = @_; + return unless defined( my $license = $self->license ); + + my $class = $self->_software_license_class($license) or return; + + # Software::License requires a 'holder' argument + my $author = join( " & ", @{ $self->dist_author }) || 'unknown'; + my $sl = eval { $class->new({holder=>$author}) }; + if ( $@ ) { + $self->log_warn( "Error getting '$class' object: $@" ); + } + + return $sl; +} + +sub _hash_merge { + my ($self, $h, $k, $v) = @_; + if (ref $h->{$k} eq 'ARRAY') { + push @{$h->{$k}}, ref $v ? @$v : $v; + } elsif (ref $h->{$k} eq 'HASH') { + $h->{$k}{$_} = $v->{$_} foreach keys %$v; + } else { + $h->{$k} = $v; + } +} + +sub ACTION_distmeta { + my ($self) = @_; + $self->do_create_makefile_pl if $self->create_makefile_pl; + $self->do_create_readme if $self->create_readme; + $self->do_create_license if $self->create_license; + $self->do_create_metafile; +} + +sub do_create_metafile { + my $self = shift; + return if $self->{wrote_metadata}; + + my $p = $self->{properties}; + + unless ($p->{license}) { + $self->log_warn("No license specified, setting license = 'unknown'\n"); + $p->{license} = 'unknown'; + } + + my @metafiles = ( $self->metafile, $self->metafile2 ); + # If we're in the distdir, the metafile may exist and be non-writable. + $self->delete_filetree($_) for @metafiles; + + # Since we're building ourself, we have to do some special stuff + # here: the ConfigData module is found in blib/lib. + local @INC = @INC; + if (($self->module_name || '') eq 'Module::Build') { + $self->depends_on('config_data'); + push @INC, File::Spec->catdir($self->blib, 'lib'); + } + + my $meta_obj = $self->_get_meta_object( + quiet => 1, fatal => 1, auto => 1 + ); + my @created = $self->_write_meta_files( $meta_obj, 'META' ); + if ( @created ) { + $self->{wrote_metadata} = 1; + $self->_add_to_manifest('MANIFEST', $_) for @created; + } + return 1; +} + +sub _write_meta_files { + my $self = shift; + my ($meta, $file) = @_; + $file =~ s{\.(?:yml|json)$}{}; + + my @created; + push @created, "$file\.yml" + if $meta && $meta->save( "$file\.yml", {version => "1.4"} ); + push @created, "$file\.json" + if $meta && $meta->save( "$file\.json" ); + + if ( @created ) { + $self->log_info("Created " . join(" and ", @created) . "\n"); + } + return @created; +} + +sub _get_meta_object { + my $self = shift; + my %args = @_; + return unless $self->try_require("CPAN::Meta", "2.110420"); + + my $meta; + eval { + my $data = $self->get_metadata( + fatal => $args{fatal}, + auto => $args{auto}, + ); + $data->{dynamic_config} = $args{dynamic} if defined $args{dynamic}; + $meta = CPAN::Meta->create($data); + }; + if ($@ && ! $args{quiet}) { + $self->log_warn( + "Could not get valid metadata. Error is: $@\n" + ); + } + + return $meta; +} + +sub read_metafile { + my $self = shift; + my ($metafile) = @_; + + return unless $self->try_require("CPAN::Meta", "2.110420"); + my $meta = CPAN::Meta->load_file($metafile); + return $meta->as_struct( {version => "2.0"} ); +} + +sub normalize_version { + my ($self, $version) = @_; + $version = 0 unless defined $version and length $version; + + if ( $version =~ /[=<>!,]/ ) { # logic, not just version + # take as is without modification + } + elsif ( ref $version eq 'version') { # version objects + $version = $version->is_qv ? $version->normal : $version->stringify; + } + elsif ( $version =~ /^[^v][^.]*\.[^.]+\./ ) { # no leading v, multiple dots + # normalize string tuples without "v": "1.2.3" -> "v1.2.3" + $version = "v$version"; + } + else { + # leave alone + } + return $version; +} + +my %prereq_map = ( + requires => [ qw/runtime requires/], + configure_requires => [qw/configure requires/], + build_requires => [ qw/build requires/ ], + test_requires => [ qw/test requires/ ], + test_recommends => [ qw/test recommends/ ], + recommends => [ qw/runtime recommends/ ], + conflicts => [ qw/runtime conflicts/ ], +); + +sub _normalize_prereqs { + my ($self) = @_; + my $p = $self->{properties}; + + # copy prereq data structures so we can modify them before writing to META + my %prereq_types; + for my $type ( 'configure_requires', @{$self->prereq_action_types} ) { + if (exists $p->{$type} and keys %{ $p->{$type} }) { + my ($phase, $relation) = @{ $prereq_map{$type} }; + for my $mod ( keys %{ $p->{$type} } ) { + $prereq_types{$phase}{$relation}{$mod} = $self->normalize_version($p->{$type}{$mod}); + } + } + } + return \%prereq_types; +} + +sub _get_license { + my $self = shift; + + my $license = $self->license; + my ($meta_license, $meta_license_url); + + my $valid_licenses = $self->valid_licenses(); + if ( my $sl = $self->_software_license_object ) { + $meta_license = $sl->meta2_name; + $meta_license_url = $sl->url; + } + elsif ( exists $valid_licenses->{$license} ) { + $meta_license = $valid_licenses->{$license} ? lc $valid_licenses->{$license} : $license; + $meta_license_url = $self->_license_url( $license ); + } + else { + $self->log_warn( "Can not determine license type for '" . $self->license + . "'\nSetting META license field to 'unknown'.\n"); + $meta_license = 'unknown'; + } + return ($meta_license, $meta_license_url); +} + +sub get_metadata { + my ($self, %args) = @_; + + my $fatal = $args{fatal} || 0; + my $p = $self->{properties}; + + $self->auto_config_requires if $args{auto}; + + # validate required fields + foreach my $f (qw(dist_name dist_version dist_author dist_abstract license)) { + my $field = $self->$f(); + unless ( defined $field and length $field ) { + my $err = "ERROR: Missing required field '$f' for metafile\n"; + if ( $fatal ) { + die $err; + } + else { + $self->log_warn($err); + } + } + } + + my %metadata = ( + name => $self->dist_name, + version => $self->normalize_version($self->dist_version), + author => $self->dist_author, + abstract => $self->dist_abstract, + generated_by => "Module::Build version $Module::Build::VERSION", + 'meta-spec' => { + version => '2', + url => 'http://search.cpan.org/perldoc?CPAN::Meta::Spec', + }, + dynamic_config => exists $p->{dynamic_config} ? $p->{dynamic_config} : 1, + release_status => $self->release_status, + ); + + my ($meta_license, $meta_license_url) = $self->_get_license; + $metadata{license} = [ $meta_license ]; + $metadata{resources}{license} = [ $meta_license_url ] if defined $meta_license_url; + + $metadata{prereqs} = $self->_normalize_prereqs; + + if (exists $p->{no_index}) { + $metadata{no_index} = $p->{no_index}; + } elsif (my $pkgs = eval { $self->find_dist_packages }) { + $metadata{provides} = $pkgs if %$pkgs; + } else { + $self->log_warn("$@\nWARNING: Possible missing or corrupt 'MANIFEST' file.\n" . + "Nothing to enter for 'provides' field in metafile.\n"); + } + + if (my $add = $self->meta_add) { + if (not exists $add->{'meta-spec'} or $add->{'meta-spec'}{version} != 2) { + require CPAN::Meta::Converter; + if (CPAN::Meta::Converter->VERSION('2.141170')) { + $add = CPAN::Meta::Converter->new($add)->upgrade_fragment; + delete $add->{prereqs}; # XXX this would now overwrite all prereqs + } + else { + $self->log_warn("Can't meta_add without CPAN::Meta 2.141170"); + } + } + + while (my($k, $v) = each %{$add}) { + $metadata{$k} = $v; + } + } + + if (my $merge = $self->meta_merge) { + if (eval { require CPAN::Meta::Merge }) { + %metadata = %{ CPAN::Meta::Merge->new(default_version => '1.4')->merge(\%metadata, $merge) }; + } + else { + $self->log_warn("Can't merge without CPAN::Meta::Merge"); + } + } + + return \%metadata; +} + +# To preserve compatibility with old API, $node *must* be a hashref +# passed in to prepare_metadata. $keys is an arrayref holding a +# list of keys -- it's use is optional and generally no longer needed +# but kept for back compatibility. $args is an optional parameter to +# support the new 'fatal' toggle + +sub prepare_metadata { + my ($self, $node, $keys, $args) = @_; + unless ( ref $node eq 'HASH' ) { + croak "prepare_metadata() requires a hashref argument to hold output\n"; + } + croak 'Keys argument to prepare_metadata is no longer supported' if $keys; + %{$node} = %{ $self->get_meta(%{$args}) }; + return $node; +} + +sub _read_manifest { + my ($self, $file) = @_; + return undef unless -e $file; + + require ExtUtils::Manifest; # ExtUtils::Manifest is not warnings clean. + local ($^W, $ExtUtils::Manifest::Quiet) = (0,1); + return scalar ExtUtils::Manifest::maniread($file); +} + +sub find_dist_packages { + my $self = shift; + + # Only packages in .pm files are candidates for inclusion here. + # Only include things in the MANIFEST, not things in developer's + # private stock. + + my $manifest = $self->_read_manifest('MANIFEST') + or die "Can't find dist packages without a MANIFEST file\nRun 'Build manifest' to generate one\n"; + + # Localize + my %dist_files = map { $self->localize_file_path($_) => $_ } + keys %$manifest; + + my @pm_files = grep { $_ !~ m{^t} } # skip things in t/ + grep {exists $dist_files{$_}} + keys %{ $self->find_pm_files }; + + return $self->find_packages_in_files(\@pm_files, \%dist_files); +} + +# XXX Do not document this function; mst wrote it and now says the API is +# stupid and needs to be fixed and it shouldn't become a public API until then +sub find_packages_in_files { + my ($self, $file_list, $filename_map) = @_; + + # First, we enumerate all packages & versions, + # separating into primary & alternative candidates + my( %prime, %alt ); + foreach my $file (@{$file_list}) { + my $mapped_filename = $filename_map->{$file}; + my @path = split( /\//, $mapped_filename ); + (my $prime_package = join( '::', @path[1..$#path] )) =~ s/\.pm$//; + + my $pm_info = Module::Metadata->new_from_file( $file ); + + foreach my $package ( $pm_info->packages_inside ) { + next if $package eq 'main'; # main can appear numerous times, ignore + next if $package eq 'DB'; # special debugging package, ignore + next if grep /^_/, split( /::/, $package ); # private package, ignore + + my $version = $pm_info->version( $package ); + + if ( $package eq $prime_package ) { + if ( exists( $prime{$package} ) ) { + # Module::Metadata will handle this conflict + die "Unexpected conflict in '$package'; multiple versions found.\n"; + } else { + $prime{$package}{file} = $mapped_filename; + $prime{$package}{version} = $version if defined( $version ); + } + } else { + push( @{$alt{$package}}, { + file => $mapped_filename, + version => $version, + } ); + } + } + } + + # Then we iterate over all the packages found above, identifying conflicts + # and selecting the "best" candidate for recording the file & version + # for each package. + foreach my $package ( keys( %alt ) ) { + my $result = $self->_resolve_module_versions( $alt{$package} ); + + if ( exists( $prime{$package} ) ) { # primary package selected + + if ( $result->{err} ) { + # Use the selected primary package, but there are conflicting + # errors among multiple alternative packages that need to be + # reported + $self->log_warn( + "Found conflicting versions for package '$package'\n" . + " $prime{$package}{file} ($prime{$package}{version})\n" . + $result->{err} + ); + + } elsif ( defined( $result->{version} ) ) { + # There is a primary package selected, and exactly one + # alternative package + + if ( exists( $prime{$package}{version} ) && + defined( $prime{$package}{version} ) ) { + # Unless the version of the primary package agrees with the + # version of the alternative package, report a conflict + if ( $self->compare_versions( $prime{$package}{version}, '!=', + $result->{version} ) ) { + $self->log_warn( + "Found conflicting versions for package '$package'\n" . + " $prime{$package}{file} ($prime{$package}{version})\n" . + " $result->{file} ($result->{version})\n" + ); + } + + } else { + # The prime package selected has no version so, we choose to + # use any alternative package that does have a version + $prime{$package}{file} = $result->{file}; + $prime{$package}{version} = $result->{version}; + } + + } else { + # no alt package found with a version, but we have a prime + # package so we use it whether it has a version or not + } + + } else { # No primary package was selected, use the best alternative + + if ( $result->{err} ) { + $self->log_warn( + "Found conflicting versions for package '$package'\n" . + $result->{err} + ); + } + + # Despite possible conflicting versions, we choose to record + # something rather than nothing + $prime{$package}{file} = $result->{file}; + $prime{$package}{version} = $result->{version} + if defined( $result->{version} ); + } + } + + # Normalize versions or delete them if undef/0 + for my $provides ( values %prime ) { + if ( $provides->{version} ) { + $provides->{version} = $self->normalize_version( $provides->{version} ) + } + else { + delete $provides->{version}; + } + } + + return \%prime; +} + +# separate out some of the conflict resolution logic from +# $self->find_dist_packages(), above, into a helper function. +# +sub _resolve_module_versions { + my $self = shift; + + my $packages = shift; + + my( $file, $version ); + my $err = ''; + foreach my $p ( @$packages ) { + if ( defined( $p->{version} ) ) { + if ( defined( $version ) ) { + if ( $self->compare_versions( $version, '!=', $p->{version} ) ) { + $err .= " $p->{file} ($p->{version})\n"; + } else { + # same version declared multiple times, ignore + } + } else { + $file = $p->{file}; + $version = $p->{version}; + } + } + $file ||= $p->{file} if defined( $p->{file} ); + } + + if ( $err ) { + $err = " $file ($version)\n" . $err; + } + + my %result = ( + file => $file, + version => $version, + err => $err + ); + + return \%result; +} + +sub make_tarball { + my ($self, $dir, $file) = @_; + $file ||= $dir; + + $self->log_info("Creating $file.tar.gz\n"); + + if ($self->{args}{tar}) { + my $tar_flags = $self->verbose ? 'cvf' : 'cf'; + $self->do_system($self->split_like_shell($self->{args}{tar}), $tar_flags, "$file.tar", $dir); + $self->do_system($self->split_like_shell($self->{args}{gzip}), "$file.tar") if $self->{args}{gzip}; + } else { + eval { require Archive::Tar && Archive::Tar->VERSION(1.09); 1 } + or die "You must install Archive::Tar 1.09+ to make a distribution tarball\n". + "or specify a binary tar program with the '--tar' option.\n". + "See the documentation for the 'dist' action.\n"; + + my $files = $self->rscan_dir($dir); + + # Archive::Tar versions >= 1.09 use the following to enable a compatibility + # hack so that the resulting archive is compatible with older clients. + # If no file path is 100 chars or longer, we disable the prefix field + # for maximum compatibility. If there are any long file paths then we + # need the prefix field after all. + $Archive::Tar::DO_NOT_USE_PREFIX = + (grep { length($_) >= 100 } @$files) ? 0 : 1; + + my $tar = Archive::Tar->new; + $tar->add_files(@$files); + for my $f ($tar->get_files) { + $f->mode($f->mode & ~022); # chmod go-w + } + $tar->write("$file.tar.gz", 1); + } +} + +sub install_path { + my $self = shift; + my( $type, $value ) = ( @_, '<empty>' ); + + Carp::croak( 'Type argument missing' ) + unless defined( $type ); + + my $map = $self->{properties}{install_path}; + return $map unless @_; + + # delete existing value if $value is literal undef() + unless ( defined( $value ) ) { + delete( $map->{$type} ); + return undef; + } + + # return existing value if no new $value is given + if ( $value eq '<empty>' ) { + return undef unless exists $map->{$type}; + return $map->{$type}; + } + + # set value if $value is a valid relative path + return $map->{$type} = $value; +} + +sub install_sets { + # Usage: install_sets('site'), install_sets('site', 'lib'), + # or install_sets('site', 'lib' => $value); + my ($self, $dirs, $key, $value) = @_; + $dirs = $self->installdirs unless defined $dirs; + # update property before merging with defaults + if ( @_ == 4 && defined $dirs && defined $key) { + # $value can be undef; will mask default + $self->{properties}{install_sets}{$dirs}{$key} = $value; + } + my $map = { $self->_merge_arglist( + $self->{properties}{install_sets}, + $self->_default_install_paths->{install_sets} + )}; + if ( defined $dirs && defined $key ) { + return $map->{$dirs}{$key}; + } + elsif ( defined $dirs ) { + return $map->{$dirs}; + } + else { + croak "Can't determine installdirs for install_sets()"; + } +} + +sub original_prefix { + # Usage: original_prefix(), original_prefix('lib'), + # or original_prefix('lib' => $value); + my ($self, $key, $value) = @_; + # update property before merging with defaults + if ( @_ == 3 && defined $key) { + # $value can be undef; will mask default + $self->{properties}{original_prefix}{$key} = $value; + } + my $map = { $self->_merge_arglist( + $self->{properties}{original_prefix}, + $self->_default_install_paths->{original_prefix} + )}; + return $map unless defined $key; + return $map->{$key} +} + +sub install_base_relpaths { + # Usage: install_base_relpaths(), install_base_relpaths('lib'), + # or install_base_relpaths('lib' => $value); + my $self = shift; + if ( @_ > 1 ) { # change values before merge + $self->_set_relpaths($self->{properties}{install_base_relpaths}, @_); + } + my $map = { $self->_merge_arglist( + $self->{properties}{install_base_relpaths}, + $self->_default_install_paths->{install_base_relpaths} + )}; + return $map unless @_; + my $relpath = $map->{$_[0]}; + return defined $relpath ? File::Spec->catdir( @$relpath ) : undef; +} + +# Defaults to use in case the config install paths cannot be prefixified. +sub prefix_relpaths { + # Usage: prefix_relpaths('site'), prefix_relpaths('site', 'lib'), + # or prefix_relpaths('site', 'lib' => $value); + my $self = shift; + my $installdirs = shift || $self->installdirs + or croak "Can't determine installdirs for prefix_relpaths()"; + if ( @_ > 1 ) { # change values before merge + $self->{properties}{prefix_relpaths}{$installdirs} ||= {}; + $self->_set_relpaths($self->{properties}{prefix_relpaths}{$installdirs}, @_); + } + my $map = {$self->_merge_arglist( + $self->{properties}{prefix_relpaths}{$installdirs}, + $self->_default_install_paths->{prefix_relpaths}{$installdirs} + )}; + return $map unless @_; + my $relpath = $map->{$_[0]}; + return defined $relpath ? File::Spec->catdir( @$relpath ) : undef; +} + +sub _set_relpaths { + my $self = shift; + my( $map, $type, $value ) = @_; + + Carp::croak( 'Type argument missing' ) + unless defined( $type ); + + # set undef if $value is literal undef() + if ( ! defined( $value ) ) { + $map->{$type} = undef; + return; + } + # set value if $value is a valid relative path + else { + Carp::croak( "Value must be a relative path" ) + if File::Spec::Unix->file_name_is_absolute($value); + + my @value = split( /\//, $value ); + $map->{$type} = \@value; + } +} + +# Translated from ExtUtils::MM_Any::init_INSTALL_from_PREFIX +sub prefix_relative { + my ($self, $type) = @_; + my $installdirs = $self->installdirs; + + my $relpath = $self->install_sets($installdirs)->{$type}; + + return $self->_prefixify($relpath, + $self->original_prefix($installdirs), + $type, + ); +} + +# Translated from ExtUtils::MM_Unix::prefixify() +sub _prefixify { + my($self, $path, $sprefix, $type) = @_; + + my $rprefix = $self->prefix; + $rprefix .= '/' if $sprefix =~ m|/$|; + + $self->log_verbose(" prefixify $path from $sprefix to $rprefix\n") + if defined( $path ) && length( $path ); + + if( !defined( $path ) || ( length( $path ) == 0 ) ) { + $self->log_verbose(" no path to prefixify, falling back to default.\n"); + return $self->_prefixify_default( $type, $rprefix ); + } elsif( !File::Spec->file_name_is_absolute($path) ) { + $self->log_verbose(" path is relative, not prefixifying.\n"); + } elsif( $path !~ s{^\Q$sprefix\E\b}{}s ) { + $self->log_verbose(" cannot prefixify, falling back to default.\n"); + return $self->_prefixify_default( $type, $rprefix ); + } + + $self->log_verbose(" now $path in $rprefix\n"); + + return $path; +} + +sub _prefixify_default { + my $self = shift; + my $type = shift; + my $rprefix = shift; + + my $default = $self->prefix_relpaths($self->installdirs, $type); + if( !$default ) { + $self->log_verbose(" no default install location for type '$type', using prefix '$rprefix'.\n"); + return $rprefix; + } else { + return $default; + } +} + +sub install_destination { + my ($self, $type) = @_; + + return $self->install_path($type) if $self->install_path($type); + + if ( $self->install_base ) { + my $relpath = $self->install_base_relpaths($type); + return $relpath ? File::Spec->catdir($self->install_base, $relpath) : undef; + } + + if ( $self->prefix ) { + my $relpath = $self->prefix_relative($type); + return $relpath ? File::Spec->catdir($self->prefix, $relpath) : undef; + } + + return $self->install_sets($self->installdirs)->{$type}; +} + +sub install_types { + my $self = shift; + + my %types; + if ( $self->install_base ) { + %types = %{$self->install_base_relpaths}; + } elsif ( $self->prefix ) { + %types = %{$self->prefix_relpaths}; + } else { + %types = %{$self->install_sets($self->installdirs)}; + } + + %types = (%types, %{$self->install_path}); + + return sort keys %types; +} + +sub install_map { + my ($self, $blib) = @_; + $blib ||= $self->blib; + + my( %map, @skipping ); + foreach my $type ($self->install_types) { + my $localdir = File::Spec->catdir( $blib, $type ); + next unless -e $localdir; + + # the line "...next if (($type eq 'bindoc'..." was one of many changes introduced for + # improving HTML generation on ActivePerl, see https://rt.cpan.org/Public/Bug/Display.html?id=53478 + # Most changes were ok, but this particular line caused test failures in t/manifypods.t on windows, + # therefore it is commented out. + + # ********* next if (($type eq 'bindoc' || $type eq 'libdoc') && not $self->is_unixish); + + if (my $dest = $self->install_destination($type)) { + $map{$localdir} = $dest; + } else { + push( @skipping, $type ); + } + } + + $self->log_warn( + "WARNING: Can't figure out install path for types: @skipping\n" . + "Files will not be installed.\n" + ) if @skipping; + + # Write the packlist into the same place as ExtUtils::MakeMaker. + if ($self->create_packlist and my $module_name = $self->module_name) { + my $archdir = $self->install_destination('arch'); + my @ext = split /::/, $module_name; + $map{write} = File::Spec->catfile($archdir, 'auto', @ext, '.packlist'); + } + + # Handle destdir + if (length(my $destdir = $self->destdir || '')) { + foreach (keys %map) { + # Need to remove volume from $map{$_} using splitpath, or else + # we'll create something crazy like C:\Foo\Bar\E:\Baz\Quux + # VMS will always have the file separate than the path. + my ($volume, $path, $file) = File::Spec->splitpath( $map{$_}, 0 ); + + # catdir needs a list of directories, or it will create something + # crazy like volume:[Foo.Bar.volume.Baz.Quux] + my @dirs = File::Spec->splitdir($path); + + # First merge the directories + $path = File::Spec->catdir($destdir, @dirs); + + # Then put the file back on if there is one. + if ($file ne '') { + $map{$_} = File::Spec->catfile($path, $file) + } else { + $map{$_} = $path; + } + } + } + + $map{read} = ''; # To keep ExtUtils::Install quiet + + return \%map; +} + +sub depends_on { + my $self = shift; + foreach my $action (@_) { + $self->_call_action($action); + } +} + +sub rscan_dir { + my ($self, $dir, $pattern) = @_; + my @result; + local $_; # find() can overwrite $_, so protect ourselves + my $subr = !$pattern ? sub {push @result, $File::Find::name} : + !ref($pattern) || (ref $pattern eq 'Regexp') ? sub {push @result, $File::Find::name if /$pattern/} : + ref($pattern) eq 'CODE' ? sub {push @result, $File::Find::name if $pattern->()} : + die "Unknown pattern type"; + + File::Find::find({wanted => $subr, no_chdir => 1}, $dir); + return \@result; +} + +sub delete_filetree { + my $self = shift; + my $deleted = 0; + foreach (@_) { + next unless -e $_; + $self->log_verbose("Deleting $_\n"); + File::Path::rmtree($_, 0, 0); + die "Couldn't remove '$_': $!\n" if -e $_; + $deleted++; + } + return $deleted; +} + +sub autosplit_file { + my ($self, $file, $to) = @_; + require AutoSplit; + my $dir = File::Spec->catdir($to, 'lib', 'auto'); + AutoSplit::autosplit($file, $dir); +} + +sub cbuilder { + # Returns a CBuilder object + + my $self = shift; + my $s = $self->{stash}; + return $s->{_cbuilder} if $s->{_cbuilder}; + + require ExtUtils::CBuilder; + return $s->{_cbuilder} = ExtUtils::CBuilder->new( + config => $self->config, + ($self->quiet ? (quiet => 1 ) : ()), + ); +} + +sub have_c_compiler { + my ($self) = @_; + + my $p = $self->{properties}; + return $p->{_have_c_compiler} if defined $p->{_have_c_compiler}; + + $self->log_verbose("Checking if compiler tools configured... "); + my $b = $self->cbuilder; + my $have = $b && eval { $b->have_compiler }; + $self->log_verbose($have ? "ok.\n" : "failed.\n"); + return $p->{_have_c_compiler} = $have; +} + +sub compile_c { + my ($self, $file, %args) = @_; + + if ( ! $self->have_c_compiler ) { + die "Error: no compiler detected to compile '$file'. Aborting\n"; + } + + my $b = $self->cbuilder; + my $obj_file = $b->object_file($file); + $self->add_to_cleanup($obj_file); + return $obj_file if $self->up_to_date($file, $obj_file); + + $b->compile(source => $file, + defines => $args{defines}, + object_file => $obj_file, + include_dirs => $self->include_dirs, + extra_compiler_flags => $self->extra_compiler_flags, + ); + + return $obj_file; +} + +sub link_c { + my ($self, $spec) = @_; + my $p = $self->{properties}; # For convenience + + $self->add_to_cleanup($spec->{lib_file}); + + my $objects = $p->{objects} || []; + + return $spec->{lib_file} + if $self->up_to_date([$spec->{obj_file}, @$objects], + $spec->{lib_file}); + + my $module_name = $spec->{module_name} || $self->module_name; + + $self->cbuilder->link( + module_name => $module_name, + objects => [$spec->{obj_file}, @$objects], + lib_file => $spec->{lib_file}, + extra_linker_flags => $p->{extra_linker_flags} ); + + return $spec->{lib_file}; +} + +sub compile_xs { + my ($self, $file, %args) = @_; + + $self->log_verbose("$file -> $args{outfile}\n"); + + if (eval {require ExtUtils::ParseXS; 1}) { + + ExtUtils::ParseXS::process_file( + filename => $file, + prototypes => 0, + output => $args{outfile}, + ); + } else { + # Ok, I give up. Just use backticks. + + my $xsubpp = Module::Metadata->find_module_by_name('ExtUtils::xsubpp') + or die "Can't find ExtUtils::xsubpp in INC (@INC)"; + + my @typemaps; + push @typemaps, Module::Metadata->find_module_by_name( + 'ExtUtils::typemap', \@INC + ); + my $lib_typemap = Module::Metadata->find_module_by_name( + 'typemap', [File::Basename::dirname($file), File::Spec->rel2abs('.')] + ); + push @typemaps, $lib_typemap if $lib_typemap; + @typemaps = map {+'-typemap', $_} @typemaps; + + my $cf = $self->{config}; + my $perl = $self->{properties}{perl}; + + my @command = ($perl, "-I".$cf->get('installarchlib'), "-I".$cf->get('installprivlib'), $xsubpp, '-noprototypes', + @typemaps, $file); + + $self->log_info("@command\n"); + open(my $fh, '>', $args{outfile}) or die "Couldn't write $args{outfile}: $!"; + print {$fh} $self->_backticks(@command); + close $fh; + } +} + +sub split_like_shell { + my ($self, $string) = @_; + + return () unless defined($string); + return @$string if ref $string eq 'ARRAY'; + $string =~ s/^\s+|\s+$//g; + return () unless length($string); + + return Text::ParseWords::shellwords($string); +} + +sub oneliner { + # Returns a string that the shell can evaluate as a perl command. + # This should be avoided whenever possible, since "the shell" really + # means zillions of shells on zillions of platforms and it's really + # hard to get it right all the time. + + # Some of this code is stolen with permission from ExtUtils::MakeMaker. + + my($self, $cmd, $switches, $args) = @_; + $switches = [] unless defined $switches; + $args = [] unless defined $args; + + # Strip leading and trailing newlines + $cmd =~ s{^\n+}{}; + $cmd =~ s{\n+$}{}; + + my $perl = ref($self) ? $self->perl : $self->find_perl_interpreter; + return $self->_quote_args($perl, @$switches, '-e', $cmd, @$args); +} + +sub run_perl_script { + my ($self, $script, $preargs, $postargs) = @_; + foreach ($preargs, $postargs) { + $_ = [ $self->split_like_shell($_) ] unless ref(); + } + return $self->run_perl_command([@$preargs, $script, @$postargs]); +} + +sub run_perl_command { + # XXX Maybe we should accept @args instead of $args? Must resolve + # this before documenting. + my ($self, $args) = @_; + $args = [ $self->split_like_shell($args) ] unless ref($args); + my $perl = ref($self) ? $self->perl : $self->find_perl_interpreter; + + # Make sure our local additions to @INC are propagated to the subprocess + local $ENV{PERL5LIB} = join $self->config('path_sep'), $self->_added_to_INC; + + return $self->do_system($perl, @$args); +} + +# Infer various data from the path of the input filename +# that is needed to create output files. +# The input filename is expected to be of the form: +# lib/Module/Name.ext or Module/Name.ext +sub _infer_xs_spec { + my $self = shift; + my $file = shift; + + my $cf = $self->{config}; + + my %spec; + + my( $v, $d, $f ) = File::Spec->splitpath( $file ); + my @d = File::Spec->splitdir( $d ); + (my $file_base = $f) =~ s/\.[^.]+$//i; + + $spec{base_name} = $file_base; + + $spec{src_dir} = File::Spec->catpath( $v, $d, '' ); + + # the module name + shift( @d ) while @d && ($d[0] eq 'lib' || $d[0] eq ''); + pop( @d ) while @d && $d[-1] eq ''; + $spec{module_name} = join( '::', (@d, $file_base) ); + + $spec{archdir} = File::Spec->catdir($self->blib, 'arch', 'auto', + @d, $file_base); + + $spec{c_file} = File::Spec->catfile( $spec{src_dir}, + "${file_base}.c" ); + + $spec{obj_file} = File::Spec->catfile( $spec{src_dir}, + "${file_base}".$cf->get('obj_ext') ); + + require DynaLoader; + my $modfname = defined &DynaLoader::mod2fname ? DynaLoader::mod2fname([@d, $file_base]) : $file_base; + + $spec{bs_file} = File::Spec->catfile($spec{archdir}, "$modfname.bs"); + + $spec{lib_file} = File::Spec->catfile($spec{archdir}, "$modfname.".$cf->get('dlext')); + + return \%spec; +} + +sub process_xs { + my ($self, $file) = @_; + + my $spec = $self->_infer_xs_spec($file); + + # File name, minus the suffix + (my $file_base = $file) =~ s/\.[^.]+$//; + + # .xs -> .c + $self->add_to_cleanup($spec->{c_file}); + + unless ($self->up_to_date($file, $spec->{c_file})) { + $self->compile_xs($file, outfile => $spec->{c_file}); + } + + # .c -> .o + my $v = $self->dist_version; + $self->compile_c($spec->{c_file}, + defines => {VERSION => qq{"$v"}, XS_VERSION => qq{"$v"}}); + + # archdir + File::Path::mkpath($spec->{archdir}, 0, oct(777)) unless -d $spec->{archdir}; + + # .xs -> .bs + $self->add_to_cleanup($spec->{bs_file}); + unless ($self->up_to_date($file, $spec->{bs_file})) { + require ExtUtils::Mkbootstrap; + $self->log_info("ExtUtils::Mkbootstrap::Mkbootstrap('$spec->{bs_file}')\n"); + ExtUtils::Mkbootstrap::Mkbootstrap($spec->{bs_file}); # Original had $BSLOADLIBS - what's that? + open(my $fh, '>>', $spec->{bs_file}); # create + utime((time)x2, $spec->{bs_file}); # touch + } + + # .o -> .(a|bundle) + $self->link_c($spec); +} + +sub do_system { + my ($self, @cmd) = @_; + $self->log_verbose("@cmd\n"); + + # Some systems proliferate huge PERL5LIBs, try to ameliorate: + my %seen; + my $sep = $self->config('path_sep'); + local $ENV{PERL5LIB} = + ( !exists($ENV{PERL5LIB}) ? '' : + length($ENV{PERL5LIB}) < 500 + ? $ENV{PERL5LIB} + : join $sep, grep { ! $seen{$_}++ and -d $_ } split($sep, $ENV{PERL5LIB}) + ); + + my $status = system(@cmd); + if ($status and $! =~ /Argument list too long/i) { + my $env_entries = ''; + foreach (sort keys %ENV) { $env_entries .= "$_=>".length($ENV{$_})."; " } + warn "'Argument list' was 'too long', env lengths are $env_entries"; + } + return !$status; +} + +sub copy_if_modified { + my $self = shift; + my %args = (@_ > 3 + ? ( @_ ) + : ( from => shift, to_dir => shift, flatten => shift ) + ); + $args{verbose} = !$self->quiet + unless exists $args{verbose}; + + my $file = $args{from}; + unless (defined $file and length $file) { + die "No 'from' parameter given to copy_if_modified"; + } + + # makes no sense to replicate an absolute path, so assume flatten + $args{flatten} = 1 if File::Spec->file_name_is_absolute( $file ); + + my $to_path; + if (defined $args{to} and length $args{to}) { + $to_path = $args{to}; + } elsif (defined $args{to_dir} and length $args{to_dir}) { + $to_path = File::Spec->catfile( $args{to_dir}, $args{flatten} + ? File::Basename::basename($file) + : $file ); + } else { + die "No 'to' or 'to_dir' parameter given to copy_if_modified"; + } + + return if $self->up_to_date($file, $to_path); # Already fresh + + { + local $self->{properties}{quiet} = 1; + $self->delete_filetree($to_path); # delete destination if exists + } + + # Create parent directories + File::Path::mkpath(File::Basename::dirname($to_path), 0, oct(777)); + + $self->log_verbose("Copying $file -> $to_path\n"); + + if ($^O eq 'os2') {# copy will not overwrite; 0x1 = overwrite + chmod 0666, $to_path; + File::Copy::syscopy($file, $to_path, 0x1) or die "Can't copy('$file', '$to_path'): $!"; + } else { + File::Copy::copy($file, $to_path) or die "Can't copy('$file', '$to_path'): $!"; + } + + # mode is read-only + (executable if source is executable) + my $mode = oct(444) | ( $self->is_executable($file) ? oct(111) : 0 ); + chmod( $mode, $to_path ); + + return $to_path; +} + +sub up_to_date { + my ($self, $source, $derived) = @_; + $source = [$source] unless ref $source; + $derived = [$derived] unless ref $derived; + + # empty $derived means $source should always run + return 0 if @$source && !@$derived || grep {not -e} @$derived; + + my $most_recent_source = time / (24*60*60); + foreach my $file (@$source) { + unless (-e $file) { + $self->log_warn("Can't find source file $file for up-to-date check"); + next; + } + $most_recent_source = -M _ if -M _ < $most_recent_source; + } + + foreach my $derived (@$derived) { + return 0 if -M $derived > $most_recent_source; + } + return 1; +} + +sub dir_contains { + my ($self, $first, $second) = @_; + # File::Spec doesn't have an easy way to check whether one directory + # is inside another, unfortunately. + + ($first, $second) = map File::Spec->canonpath($_), ($first, $second); + my @first_dirs = File::Spec->splitdir($first); + my @second_dirs = File::Spec->splitdir($second); + + return 0 if @second_dirs < @first_dirs; + + my $is_same = ( $self->_case_tolerant + ? sub {lc(shift()) eq lc(shift())} + : sub {shift() eq shift()} ); + + while (@first_dirs) { + return 0 unless $is_same->(shift @first_dirs, shift @second_dirs); + } + + return 1; +} + +1; +__END__ + + +=head1 NAME + +Module::Build::Base - Default methods for Module::Build + +=head1 SYNOPSIS + + Please see the Module::Build documentation. + +=head1 DESCRIPTION + +The C<Module::Build::Base> module defines the core functionality of +C<Module::Build>. Its methods may be overridden by any of the +platform-dependent modules in the C<Module::Build::Platform::> +namespace, but the intention here is to make this base module as +platform-neutral as possible. Nicely enough, Perl has several core +tools available in the C<File::> namespace for doing this, so the task +isn't very difficult. + +Please see the C<Module::Build> documentation for more details. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 COPYRIGHT + +Copyright (c) 2001-2006 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + +=head1 SEE ALSO + +perl(1), Module::Build(3) + +=cut diff --git a/lib/Module/Build/Bundling.pod b/lib/Module/Build/Bundling.pod new file mode 100644 index 0000000..98f2de3 --- /dev/null +++ b/lib/Module/Build/Bundling.pod @@ -0,0 +1,147 @@ +=head1 NAME + +Module::Build::Bundling - How to bundle Module::Build with a distribution + +=head1 SYNOPSIS + + # Build.PL + use inc::latest 'Module::Build'; + + Module::Build->new( + module_name => 'Foo::Bar', + license => 'perl', + )->create_build_script; + +=head1 DESCRIPTION + +B<WARNING -- THIS IS AN EXPERIMENTAL FEATURE> + +In order to install a distribution using Module::Build, users must +have Module::Build available on their systems. There are two ways +to do this. The first way is to include Module::Build in the +C<configure_requires> metadata field. This field is supported by +recent versions L<CPAN> and L<CPANPLUS> and is a standard feature +in the Perl core as of Perl 5.10.1. Module::Build now adds itself +to C<configure_requires> by default. + +The second way supports older Perls that have not upgraded CPAN or +CPANPLUS and involves bundling an entire copy of Module::Build +into the distribution's C<inc/> directory. This is the same approach +used by L<Module::Install>, a modern wrapper around ExtUtils::MakeMaker +for Makefile.PL based distributions. + +The "trick" to making this work for Module::Build is making sure the +highest version Module::Build is used, whether this is in C<inc/> or +already installed on the user's system. This ensures that all necessary +features are available as well as any new bug fixes. This is done using +the experimental L<inc::latest> module, available on CPAN. + +A "normal" Build.PL looks like this (with only the minimum required +fields): + + use Module::Build; + + Module::Build->new( + module_name => 'Foo::Bar', + license => 'perl', + )->create_build_script; + +A "bundling" Build.PL replaces the initial "use" line with a nearly +transparent replacement: + + use inc::latest 'Module::Build'; + + Module::Build->new( + module_name => 'Foo::Bar', + license => 'perl', + )->create_build_script; + +For I<authors>, when "Build dist" is run, Module::Build will be +automatically bundled into C<inc> according to the rules for +L<inc::latest>. + +For I<users>, inc::latest will load the latest Module::Build, whether +installed or bundled in C<inc/>. + +=head1 BUNDLING OTHER CONFIGURATION DEPENDENCIES + +The same approach works for other configuration dependencies -- modules +that I<must> be available for Build.PL to run. All other dependencies can +be specified as usual in the Build.PL and CPAN or CPANPLUS will install +them after Build.PL finishes. + +For example, to bundle the L<Devel::AssertOS::Unix> module (which ensures a +"Unix-like" operating system), one could do this: + + use inc::latest 'Devel::AssertOS::Unix'; + use inc::latest 'Module::Build'; + + Module::Build->new( + module_name => 'Foo::Bar', + license => 'perl', + )->create_build_script; + +The C<inc::latest> module creates bundled directories based on the packlist +file of an installed distribution. Even though C<inc::latest> takes module +name arguments, it is better to think of it as bundling and making +available entire I<distributions>. When a module is loaded through +C<inc::latest>, it looks in all bundled distributions in C<inc/> for a +newer module than can be found in the existing C<@INC> array. + +Thus, the module-name provided should usually be the "top-level" module +name of a distribution, though this is not strictly required. For example, +L<Module::Build> has a number of heuristics to map module names to +packlists, allowing users to do things like this: + + use inc::latest 'Devel::AssertOS::Unix'; + +even though Devel::AssertOS::Unix is contained within the Devel-CheckOS +distribution. + +At the current time, packlists are required. Thus, bundling dual-core +modules, I<including Module::Build>, may require a 'forced install' over +versions in the latest version of perl in order to create the necessary +packlist for bundling. This limitation will hopefully be addressed in a +future version of Module::Build. + +=head2 WARNING -- How to Manage Dependency Chains + +Before bundling a distribution you must ensure that all prerequisites are +also bundled and load in the correct order. For Module::Build itself, this +should not be necessary, but it is necessary for any other distribution. +(A future release of Module::Build will hopefully address this deficiency.) + +For example, if you need C<Wibble>, but C<Wibble> depends on C<Wobble>, +your Build.PL might look like this: + + use inc::latest 'Wobble'; + use inc::latest 'Wibble'; + use inc::latest 'Module::Build'; + + Module::Build->new( + module_name => 'Foo::Bar', + license => 'perl', + )->create_build_script; + +Authors are strongly suggested to limit the bundling of additional +dependencies if at all possible and to carefully test their distribution +tarballs on older versions of Perl before uploading to CPAN. + +=head1 AUTHOR + +David Golden <dagolden@cpan.org> + +Development questions, bug reports, and patches should be sent to the +Module-Build mailing list at <module-build@perl.org>. + +Bug reports are also welcome at +<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Build>. + +=head1 SEE ALSO + +perl(1), L<inc::latest>, L<Module::Build>(3), L<Module::Build::API>(3), +L<Module::Build::Cookbook>(3), + +=cut + +# vim: tw=75 diff --git a/lib/Module/Build/Compat.pm b/lib/Module/Build/Compat.pm new file mode 100644 index 0000000..25924fd --- /dev/null +++ b/lib/Module/Build/Compat.pm @@ -0,0 +1,632 @@ +package Module::Build::Compat; + +use strict; +use warnings; +our $VERSION = '0.4214'; + +use File::Basename (); +use File::Spec; +use Config; +use Module::Build; +use Module::Metadata; +use version; +use Data::Dumper; + +my %convert_installdirs = ( + PERL => 'core', + SITE => 'site', + VENDOR => 'vendor', +); + +my %makefile_to_build = + ( + TEST_VERBOSE => 'verbose', + VERBINST => 'verbose', + INC => sub { map {(extra_compiler_flags => $_)} Module::Build->split_like_shell(shift) }, + POLLUTE => sub { (extra_compiler_flags => '-DPERL_POLLUTE') }, + INSTALLDIRS => sub { (installdirs => $convert_installdirs{uc shift()}) }, + LIB => sub { + my $lib = shift; + my %config = ( + installprivlib => $lib, + installsitelib => $lib, + installarchlib => "$lib/$Config{archname}", + installsitearch => "$lib/$Config{archname}" + ); + return map { (config => "$_=$config{$_}") } keys %config; + }, + + # Convert INSTALLVENDORLIB and friends. + ( + map { + my $name = $_; + $name => sub { + my @ret = (config => lc($name) . "=" . shift ); + print STDERR "# Converted to @ret\n"; + + return @ret; + } + } qw( + INSTALLARCHLIB INSTALLSITEARCH INSTALLVENDORARCH + INSTALLPRIVLIB INSTALLSITELIB INSTALLVENDORLIB + INSTALLBIN INSTALLSITEBIN INSTALLVENDORBIN + INSTALLSCRIPT INSTALLSITESCRIPT INSTALLVENDORSCRIPT + INSTALLMAN1DIR INSTALLSITEMAN1DIR INSTALLVENDORMAN1DIR + INSTALLMAN3DIR INSTALLSITEMAN3DIR INSTALLVENDORMAN3DIR + ) + ), + + # Some names they have in common + map {$_, lc($_)} qw(DESTDIR PREFIX INSTALL_BASE UNINST), + ); + +my %macro_to_build = %makefile_to_build; +# "LIB=foo make" is not the same as "perl Makefile.PL LIB=foo" +delete $macro_to_build{LIB}; + +sub _merge_prereq { + my ($req, $breq) = @_; + $req ||= {}; + $breq ||= {}; + + # validate formats + for my $p ( $req, $breq ) { + for my $k (keys %$p) { + next if $k eq 'perl'; + + my $v_obj = eval { version->new($p->{$k}) }; + if ( ! defined $v_obj ) { + die "A prereq of the form '$p->{$k}' for '$k' is not supported by Module::Build::Compat ( use a simpler version like '0.05' or 'v1.4.25' )\n"; + } + + # It seems like a lot of people trip over "0.1.2" stuff, so we help them here... + if ( $v_obj->is_qv ) { + my $proper_ver = $v_obj->numify; + warn "Dotted-decimal prereq '$p->{$k}' for '$k' is not portable - converting it to '$proper_ver'\n"; + $p->{$k} = $proper_ver; + } + } + } + # merge + my $merge = { %$req }; + for my $k ( keys %$breq ) { + my $v1 = $merge->{$k} || 0; + my $v2 = $breq->{$k}; + $merge->{$k} = $v1 > $v2 ? $v1 : $v2; + } + return %$merge; +} + + +sub create_makefile_pl { + my ($package, $type, $build, %args) = @_; + + die "Don't know how to build Makefile.PL of type '$type'" + unless $type =~ /^(small|passthrough|traditional)$/; + + if ($type eq 'passthrough') { + $build->log_warn(<<"HERE"); + +IMPORTANT NOTE: The '$type' style of Makefile.PL is deprecated and +may be removed in a future version of Module::Build in favor of the +'configure_requires' property. See Module::Build::Compat +documentation for details. + +HERE + } + + my $fh; + if ($args{fh}) { + $fh = $args{fh}; + } else { + $args{file} ||= 'Makefile.PL'; + local $build->{properties}{quiet} = 1; + $build->delete_filetree($args{file}); + open($fh, '>', "$args{file}") or die "Can't write $args{file}: $!"; + } + + print {$fh} "# Note: this file was auto-generated by ", __PACKAGE__, " version $VERSION\n"; + + # Minimum perl version should be specified as "require 5.XXXXXX" in + # Makefile.PL + my $requires = $build->requires; + if ( my $minimum_perl = $requires->{perl} ) { + my $min_ver = version->new($minimum_perl)->numify; + print {$fh} "require $min_ver;\n"; + } + + # If a *bundled* custom subclass is being used, make sure we add its + # directory to @INC. Also, lib.pm always needs paths in Unix format. + my $subclass_load = ''; + if (ref($build) ne "Module::Build") { + my $subclass_dir = $package->subclass_dir($build); + + if (File::Spec->file_name_is_absolute($subclass_dir)) { + my $base_dir = $build->base_dir; + + if ($build->dir_contains($base_dir, $subclass_dir)) { + $subclass_dir = File::Spec->abs2rel($subclass_dir, $base_dir); + $subclass_dir = $package->unixify_dir($subclass_dir); + $subclass_load = "use lib '$subclass_dir';"; + } + # Otherwise, leave it the empty string + + } else { + $subclass_dir = $package->unixify_dir($subclass_dir); + $subclass_load = "use lib '$subclass_dir';"; + } + } + + if ($type eq 'small') { + printf {$fh} <<'EOF', $subclass_load, ref($build), ref($build); + use Module::Build::Compat 0.02; + %s + Module::Build::Compat->run_build_pl(args => \@ARGV); + require %s; + Module::Build::Compat->write_makefile(build_class => '%s'); +EOF + + } elsif ($type eq 'passthrough') { + printf {$fh} <<'EOF', $subclass_load, ref($build), ref($build); + + unless (eval "use Module::Build::Compat 0.02; 1" ) { + print "This module requires Module::Build to install itself.\n"; + + require ExtUtils::MakeMaker; + my $yn = ExtUtils::MakeMaker::prompt + (' Install Module::Build now from CPAN?', 'y'); + + unless ($yn =~ /^y/i) { + die " *** Cannot install without Module::Build. Exiting ...\n"; + } + + require Cwd; + require File::Spec; + require CPAN; + + # Save this 'cause CPAN will chdir all over the place. + my $cwd = Cwd::cwd(); + + CPAN::Shell->install('Module::Build::Compat'); + CPAN::Shell->expand("Module", "Module::Build::Compat")->uptodate + or die "Couldn't install Module::Build, giving up.\n"; + + chdir $cwd or die "Cannot chdir() back to $cwd: $!"; + } + eval "use Module::Build::Compat 0.02; 1" or die $@; + %s + Module::Build::Compat->run_build_pl(args => \@ARGV); + my $build_script = 'Build'; + $build_script .= '.com' if $^O eq 'VMS'; + exit(0) unless(-e $build_script); # cpantesters convention + require %s; + Module::Build::Compat->write_makefile(build_class => '%s'); +EOF + + } elsif ($type eq 'traditional') { + + my (%MM_Args, %prereq); + if (eval "use Tie::IxHash 1.2; 1") { + tie %MM_Args, 'Tie::IxHash'; # Don't care if it fails here + tie %prereq, 'Tie::IxHash'; # Don't care if it fails here + } + + my %name = ($build->module_name + ? (NAME => $build->module_name) + : (DISTNAME => $build->dist_name)); + + my %version = ($build->dist_version_from + ? (VERSION_FROM => $build->dist_version_from) + : (VERSION => $build->dist_version) + ); + %MM_Args = (%name, %version); + + %prereq = _merge_prereq( $build->requires, $build->build_requires ); + %prereq = map {$_, $prereq{$_}} sort keys %prereq; + + delete $prereq{perl}; + $MM_Args{PREREQ_PM} = \%prereq; + + $MM_Args{INSTALLDIRS} = $build->installdirs eq 'core' ? 'perl' : $build->installdirs; + + $MM_Args{EXE_FILES} = [ sort keys %{$build->script_files} ] if $build->script_files; + + $MM_Args{PL_FILES} = $build->PL_files || {}; + + if ($build->recursive_test_files) { + $MM_Args{test} = { TESTS => join q{ }, $package->_test_globs($build) }; + } + + local $Data::Dumper::Terse = 1; + my $args = Data::Dumper::Dumper(\%MM_Args); + $args =~ s/\{(.*)\}/($1)/s; + + print $fh <<"EOF"; +use ExtUtils::MakeMaker; +WriteMakefile +$args; +EOF + } +} + +sub _test_globs { + my ($self, $build) = @_; + + return map { File::Spec->catfile($_, '*.t') } + @{$build->rscan_dir('t', sub { -d $File::Find::name })}; +} + +sub subclass_dir { + my ($self, $build) = @_; + + return (Module::Metadata->find_module_dir_by_name(ref $build) + || File::Spec->catdir($build->config_dir, 'lib')); +} + +sub unixify_dir { + my ($self, $path) = @_; + return join '/', File::Spec->splitdir($path); +} + +sub makefile_to_build_args { + my $class = shift; + my @out; + foreach my $arg (@_) { + next if $arg eq ''; + + my ($key, $val) = ($arg =~ /^(\w+)=(.+)/ ? ($1, $2) : + die "Malformed argument '$arg'"); + + # Do tilde-expansion if it looks like a tilde prefixed path + ( $val ) = Module::Build->_detildefy( $val ) if $val =~ /^~/; + + if (exists $makefile_to_build{$key}) { + my $trans = $makefile_to_build{$key}; + push @out, $class->_argvify( ref($trans) ? $trans->($val) : ($trans => $val) ); + } elsif (exists $Config{lc($key)}) { + push @out, $class->_argvify( config => lc($key) . "=$val" ); + } else { + # Assume M::B can handle it in lowercase form + push @out, $class->_argvify("\L$key" => $val); + } + } + return @out; +} + +sub _argvify { + my ($self, @pairs) = @_; + my @out; + while (@pairs) { + my ($k, $v) = splice @pairs, 0, 2; + push @out, ("--$k", $v); + } + return @out; +} + +sub makefile_to_build_macros { + my @out; + my %config; # must accumulate and return as a hashref + while (my ($macro, $trans) = each %macro_to_build) { + # On some platforms (e.g. Cygwin with 'make'), the mere presence + # of "EXPORT: FOO" in the Makefile will make $ENV{FOO} defined. + # Therefore we check length() too. + next unless exists $ENV{$macro} && length $ENV{$macro}; + my $val = $ENV{$macro}; + my @args = ref($trans) ? $trans->($val) : ($trans => $val); + while (@args) { + my ($k, $v) = splice(@args, 0, 2); + if ( $k eq 'config' ) { + if ( $v =~ /^([^=]+)=(.*)$/ ) { + $config{$1} = $2; + } + else { + warn "Couldn't parse config '$v'\n"; + } + } + else { + push @out, ($k => $v); + } + } + } + push @out, (config => \%config) if %config; + return @out; +} + +sub run_build_pl { + my ($pack, %in) = @_; + $in{script} ||= 'Build.PL'; + my @args = $in{args} ? $pack->makefile_to_build_args(@{$in{args}}) : (); + print "# running $in{script} @args\n"; + Module::Build->run_perl_script($in{script}, [], \@args) or die "Couldn't run $in{script}: $!"; +} + +sub fake_makefile { + my ($self, %args) = @_; + unless (exists $args{build_class}) { + warn "Unknown 'build_class', defaulting to 'Module::Build'\n"; + $args{build_class} = 'Module::Build'; + } + my $class = $args{build_class}; + + my $perl = $class->find_perl_interpreter; + + # VMS MMS/MMK need to use MCR to run the Perl image. + $perl = 'MCR ' . $perl if $self->_is_vms_mms; + + my $noop = ($class->is_windowsish ? 'rem>nul' : + $self->_is_vms_mms ? 'Continue' : + 'true'); + + my $filetype = $class->is_vmsish ? '.COM' : ''; + + my $Build = 'Build' . $filetype . ' --makefile_env_macros 1'; + my $unlink = $class->oneliner('1 while unlink $ARGV[0]', [], [$args{makefile}]); + $unlink =~ s/\$/\$\$/g unless $class->is_vmsish; + + my $maketext = ($^O eq 'os2' ? "SHELL = sh\n\n" : ''); + + $maketext .= <<"EOF"; +all : force_do_it + $perl $Build +realclean : force_do_it + $perl $Build realclean + $unlink +distclean : force_do_it + $perl $Build distclean + $unlink + + +force_do_it : + @ $noop +EOF + + foreach my $action ($class->known_actions) { + next if $action =~ /^(all|distclean|realclean|force_do_it)$/; # Don't double-define + $maketext .= <<"EOF"; +$action : force_do_it + $perl $Build $action +EOF + } + + if ($self->_is_vms_mms) { + # Roll our own .EXPORT as MMS/MMK don't honor that directive. + $maketext .= "\n.FIRST\n\t\@ $noop\n"; + for my $macro (keys %macro_to_build) { + $maketext .= ".IFDEF $macro\n\tDEFINE $macro \"\$($macro)\"\n.ENDIF\n"; + } + $maketext .= "\n"; + } + else { + $maketext .= "\n.EXPORT : " . join(' ', keys %macro_to_build) . "\n\n"; + } + + return $maketext; +} + +sub fake_prereqs { + my $file = File::Spec->catfile('_build', 'prereqs'); + open(my $fh, '<', "$file") or die "Can't read $file: $!"; + my $prereqs = eval do {local $/; <$fh>}; + close $fh; + + my %merged = _merge_prereq( $prereqs->{requires}, $prereqs->{build_requires} ); + my @prereq; + foreach (sort keys %merged) { + next if $_ eq 'perl'; + push @prereq, "$_=>q[$merged{$_}]"; + } + return unless @prereq; + return "# PREREQ_PM => { " . join(", ", @prereq) . " }\n\n"; +} + + +sub write_makefile { + my ($pack, %in) = @_; + + unless (exists $in{build_class}) { + warn "Unknown 'build_class', defaulting to 'Module::Build'\n"; + $in{build_class} = 'Module::Build'; + } + my $class = $in{build_class}; + $in{makefile} ||= $pack->_is_vms_mms ? 'Descrip.MMS' : 'Makefile'; + + open MAKE, "> $in{makefile}" or die "Cannot write $in{makefile}: $!"; + print MAKE $pack->fake_prereqs; + print MAKE $pack->fake_makefile(%in); + close MAKE; +} + +sub _is_vms_mms { + return Module::Build->is_vmsish && ($Config{make} =~ m/MM[SK]/i); +} + +1; +__END__ + +=for :stopwords passthrough + +=head1 NAME + +Module::Build::Compat - Compatibility with ExtUtils::MakeMaker + +=head1 SYNOPSIS + + # In a Build.PL : + use Module::Build; + my $build = Module::Build->new + ( module_name => 'Foo::Bar', + license => 'perl', + create_makefile_pl => 'traditional' ); + ... + + +=head1 DESCRIPTION + +Because C<ExtUtils::MakeMaker> has been the standard way to distribute +modules for a long time, many tools (CPAN.pm, or your system +administrator) may expect to find a working F<Makefile.PL> in every +distribution they download from CPAN. If you want to throw them a +bone, you can use C<Module::Build::Compat> to automatically generate a +F<Makefile.PL> for you, in one of several different styles. + +C<Module::Build::Compat> also provides some code that helps out the +F<Makefile.PL> at runtime. + + +=head1 METHODS + +=over 4 + +=item create_makefile_pl($style, $build) + +Creates a F<Makefile.PL> in the current directory in one of several +styles, based on the supplied C<Module::Build> object C<$build>. This is +typically controlled by passing the desired style as the +C<create_makefile_pl> parameter to C<Module::Build>'s C<new()> method; +the F<Makefile.PL> will then be automatically created during the +C<distdir> action. + +The currently supported styles are: + +=over 4 + +=item traditional + +A F<Makefile.PL> will be created in the "traditional" style, i.e. it will +use C<ExtUtils::MakeMaker> and won't rely on C<Module::Build> at all. +In order to create the F<Makefile.PL>, we'll include the C<requires> and +C<build_requires> dependencies as the C<PREREQ_PM> parameter. + +You don't want to use this style if during the C<perl Build.PL> stage +you ask the user questions, or do some auto-sensing about the user's +environment, or if you subclass C<Module::Build> to do some +customization, because the vanilla F<Makefile.PL> won't do any of that. + +=item small + +A small F<Makefile.PL> will be created that passes all functionality +through to the F<Build.PL> script in the same directory. The user must +already have C<Module::Build> installed in order to use this, or else +they'll get a module-not-found error. + +=item passthrough (DEPRECATED) + +This is just like the C<small> option above, but if C<Module::Build> is +not already installed on the user's system, the script will offer to +use C<CPAN.pm> to download it and install it before continuing with +the build. + +This option has been deprecated and may be removed in a future version +of Module::Build. Modern CPAN.pm and CPANPLUS will recognize the +C<configure_requires> metadata property and install Module::Build before +running Build.PL if Module::Build is listed and Module::Build now +adds itself to configure_requires by default. + +Perl 5.10.1 includes C<configure_requires> support. In the future, when +C<configure_requires> support is deemed sufficiently widespread, the +C<passthrough> style will be removed. + +=back + +=item run_build_pl(args => \@ARGV) + +This method runs the F<Build.PL> script, passing it any arguments the +user may have supplied to the C<perl Makefile.PL> command. Because +C<ExtUtils::MakeMaker> and C<Module::Build> accept different arguments, this +method also performs some translation between the two. + +C<run_build_pl()> accepts the following named parameters: + +=over 4 + +=item args + +The C<args> parameter specifies the parameters that would usually +appear on the command line of the C<perl Makefile.PL> command - +typically you'll just pass a reference to C<@ARGV>. + +=item script + +This is the filename of the script to run - it defaults to C<Build.PL>. + +=back + +=item write_makefile() + +This method writes a 'dummy' F<Makefile> that will pass all commands +through to the corresponding C<Module::Build> actions. + +C<write_makefile()> accepts the following named parameters: + +=over 4 + +=item makefile + +The name of the file to write - defaults to the string C<Makefile>. + +=back + +=back + + +=head1 SCENARIOS + +So, some common scenarios are: + +=over 4 + +=item 1. + +Just include a F<Build.PL> script (without a F<Makefile.PL> +script), and give installation directions in a F<README> or F<INSTALL> +document explaining how to install the module. In particular, explain +that the user must install C<Module::Build> before installing your +module. + +Note that if you do this, you may make things easier for yourself, but +harder for people with older versions of CPAN or CPANPLUS on their +system, because those tools generally only understand the +F<Makefile.PL>/C<ExtUtils::MakeMaker> way of doing things. + +=item 2. + +Include a F<Build.PL> script and a "traditional" F<Makefile.PL>, +created either manually or with C<create_makefile_pl()>. Users won't +ever have to install C<Module::Build> if they use the F<Makefile.PL>, but +they won't get to take advantage of C<Module::Build>'s extra features +either. + +For good measure, of course, test both the F<Makefile.PL> and the +F<Build.PL> before shipping. + +=item 3. + +Include a F<Build.PL> script and a "pass-through" F<Makefile.PL> +built using C<Module::Build::Compat>. This will mean that people can +continue to use the "old" installation commands, and they may never +notice that it's actually doing something else behind the scenes. It +will also mean that your installation process is compatible with older +versions of tools like CPAN and CPANPLUS. + +=back + + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + + +=head1 COPYRIGHT + +Copyright (c) 2001-2006 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + + +=head1 SEE ALSO + +L<Module::Build>(3), L<ExtUtils::MakeMaker>(3) + + +=cut diff --git a/lib/Module/Build/Config.pm b/lib/Module/Build/Config.pm new file mode 100644 index 0000000..2977680 --- /dev/null +++ b/lib/Module/Build/Config.pm @@ -0,0 +1,59 @@ +package Module::Build::Config; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Config; + +sub new { + my ($pack, %args) = @_; + return bless { + stack => {}, + values => $args{values} || {}, + }, $pack; +} + +sub get { + my ($self, $key) = @_; + return $self->{values}{$key} if ref($self) && exists $self->{values}{$key}; + return $Config{$key}; +} + +sub set { + my ($self, $key, $val) = @_; + $self->{values}{$key} = $val; +} + +sub push { + my ($self, $key, $val) = @_; + push @{$self->{stack}{$key}}, $self->{values}{$key} + if exists $self->{values}{$key}; + $self->{values}{$key} = $val; +} + +sub pop { + my ($self, $key) = @_; + + my $val = delete $self->{values}{$key}; + if ( exists $self->{stack}{$key} ) { + $self->{values}{$key} = pop @{$self->{stack}{$key}}; + delete $self->{stack}{$key} unless @{$self->{stack}{$key}}; + } + + return $val; +} + +sub values_set { + my $self = shift; + return undef unless ref($self); + return $self->{values}; +} + +sub all_config { + my $self = shift; + my $v = ref($self) ? $self->{values} : {}; + return {%Config, %$v}; +} + +1; diff --git a/lib/Module/Build/Cookbook.pm b/lib/Module/Build/Cookbook.pm new file mode 100644 index 0000000..75b5179 --- /dev/null +++ b/lib/Module/Build/Cookbook.pm @@ -0,0 +1,529 @@ +package Module::Build::Cookbook; +use strict; +use warnings; +our $VERSION = '0.4214'; + + +=head1 NAME + +Module::Build::Cookbook - Examples of Module::Build Usage + +=head1 DESCRIPTION + +C<Module::Build> isn't conceptually very complicated, but examples are +always helpful. The following recipes should help developers and/or +installers put together the pieces from the other parts of the +documentation. + + +=head1 BASIC RECIPES + + +=head2 Installing modules that use Module::Build + +In most cases, you can just issue the following commands: + + perl Build.PL + ./Build + ./Build test + ./Build install + +There's nothing complicated here - first you're running a script +called F<Build.PL>, then you're running a (newly-generated) script +called F<Build> and passing it various arguments. + +The exact commands may vary a bit depending on how you invoke perl +scripts on your system. For instance, if you have multiple versions +of perl installed, you can install to one particular perl's library +directories like so: + + /usr/bin/perl5.8.1 Build.PL + ./Build + ./Build test + ./Build install + +If you're on Windows where the current directory is always searched +first for scripts, you'll probably do something like this: + + perl Build.PL + Build + Build test + Build install + +On the old Mac OS (version 9 or lower) using MacPerl, you can +double-click on the F<Build.PL> script to create the F<Build> script, +then double-click on the F<Build> script to run its C<build>, C<test>, +and C<install> actions. + +The F<Build> script knows what perl was used to run F<Build.PL>, so +you don't need to re-invoke the F<Build> script with the complete perl +path each time. If you invoke it with the I<wrong> perl path, you'll +get a warning or a fatal error. + +=head2 Modifying Config.pm values + +C<Module::Build> relies heavily on various values from perl's +C<Config.pm> to do its work. For example, default installation paths +are given by C<installsitelib> and C<installvendorman3dir> and +friends, C linker & compiler settings are given by C<ld>, +C<lddlflags>, C<cc>, C<ccflags>, and so on. I<If you're pretty sure +you know what you're doing>, you can tell C<Module::Build> to pretend +there are different values in F<Config.pm> than what's really there, +by passing arguments for the C<--config> parameter on the command +line: + + perl Build.PL --config cc=gcc --config ld=gcc + +Inside the C<Build.PL> script the same thing can be accomplished by +passing values for the C<config> parameter to C<new()>: + + my $build = Module::Build->new + ( + ... + config => { cc => 'gcc', ld => 'gcc' }, + ... + ); + +In custom build code, the same thing can be accomplished by calling +the L<Module::Build/config> method: + + $build->config( cc => 'gcc' ); # Set + $build->config( ld => 'gcc' ); # Set + ... + my $linker = $build->config('ld'); # Get + + +=head2 Installing modules using the programmatic interface + +If you need to build, test, and/or install modules from within some +other perl code (as opposed to having the user type installation +commands at the shell), you can use the programmatic interface. +Create a Module::Build object (or an object of a custom Module::Build +subclass) and then invoke its C<dispatch()> method to run various +actions. + + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + license => 'perl', + requires => { 'Some::Module' => '1.23' }, + ); + $build->dispatch('build'); + $build->dispatch('test', verbose => 1); + $build->dispatch('install'); + +The first argument to C<dispatch()> is the name of the action, and any +following arguments are named parameters. + +This is the interface we use to test Module::Build itself in the +regression tests. + + +=head2 Installing to a temporary directory + +To create packages for package managers like RedHat's C<rpm> or +Debian's C<deb>, you may need to install to a temporary directory +first and then create the package from that temporary installation. +To do this, specify the C<destdir> parameter to the C<install> action: + + ./Build install --destdir /tmp/my-package-1.003 + +This essentially just prepends all the installation paths with the +F</tmp/my-package-1.003> directory. + + +=head2 Installing to a non-standard directory + +To install to a non-standard directory (for example, if you don't have +permission to install in the system-wide directories), you can use the +C<install_base> or C<prefix> parameters: + + ./Build install --install_base /foo/bar + +See L<Module::Build/"INSTALL PATHS"> for a much more complete +discussion of how installation paths are determined. + + +=head2 Installing in the same location as ExtUtils::MakeMaker + +With the introduction of C<--prefix> in Module::Build 0.28 and +C<INSTALL_BASE> in C<ExtUtils::MakeMaker> 6.31 its easy to get them both +to install to the same locations. + +First, ensure you have at least version 0.28 of Module::Build +installed and 6.31 of C<ExtUtils::MakeMaker>. Prior versions have +differing (and in some cases quite strange) installation behaviors. + +The following installation flags are equivalent between +C<ExtUtils::MakeMaker> and C<Module::Build>. + + MakeMaker Module::Build + PREFIX=... --prefix ... + INSTALL_BASE=... --install_base ... + DESTDIR=... --destdir ... + LIB=... --install_path lib=... + INSTALLDIRS=... --installdirs ... + INSTALLDIRS=perl --installdirs core + UNINST=... --uninst ... + INC=... --extra_compiler_flags ... + POLLUTE=1 --extra_compiler_flags -DPERL_POLLUTE + +For example, if you are currently installing C<MakeMaker> modules with +this command: + + perl Makefile.PL PREFIX=~ + make test + make install UNINST=1 + +You can install into the same location with Module::Build using this: + + perl Build.PL --prefix ~ + ./Build test + ./Build install --uninst 1 + +=head3 C<prefix> vs C<install_base> + +The behavior of C<prefix> is complicated and depends on +how your Perl is configured. The resulting installation locations +will vary from machine to machine and even different installations of +Perl on the same machine. Because of this, it's difficult to document +where C<prefix> will place your modules. + +In contrast, C<install_base> has predictable, easy to explain +installation locations. Now that C<Module::Build> and C<MakeMaker> both +have C<install_base> there is little reason to use C<prefix> other +than to preserve your existing installation locations. If you are +starting a fresh Perl installation we encourage you to use +C<install_base>. If you have an existing installation installed via +C<prefix>, consider moving it to an installation structure matching +C<install_base> and using that instead. + + +=head2 Running a single test file + +C<Module::Build> supports running a single test, which enables you to +track down errors more quickly. Use the following format: + + ./Build test --test_files t/mytest.t + +In addition, you may want to run the test in verbose mode to get more +informative output: + + ./Build test --test_files t/mytest.t --verbose 1 + +I run this so frequently that I define the following shell alias: + + alias t './Build test --verbose 1 --test_files' + +So then I can just execute C<t t/mytest.t> to run a single test. + + +=head1 ADVANCED RECIPES + + +=head2 Making a CPAN.pm-compatible distribution + +New versions of CPAN.pm understand how to use a F<Build.PL> script, +but old versions don't. If authors want to help users who have old +versions, some form of F<Makefile.PL> should be supplied. The easiest +way to accomplish this is to use the C<create_makefile_pl> parameter to +C<< Module::Build->new() >> in the C<Build.PL> script, which can +create various flavors of F<Makefile.PL> during the C<dist> action. + +As a best practice, we recommend using the "traditional" style of +F<Makefile.PL> unless your distribution has needs that can't be +accomplished that way. + +The C<Module::Build::Compat> module, which is part of +C<Module::Build>'s distribution, is responsible for creating these +F<Makefile.PL>s. Please see L<Module::Build::Compat> for the details. + + +=head2 Changing the order of the build process + +The C<build_elements> property specifies the steps C<Module::Build> +will take when building a distribution. To change the build order, +change the order of the entries in that property: + + # Process pod files first + my @e = @{$build->build_elements}; + my ($i) = grep {$e[$_] eq 'pod'} 0..$#e; + unshift @e, splice @e, $i, 1; + +Currently, C<build_elements> has the following default value: + + [qw( PL support pm xs pod script )] + +Do take care when altering this property, since there may be +non-obvious (and non-documented!) ordering dependencies in the +C<Module::Build> code. + + +=head2 Adding new file types to the build process + +Sometimes you might have extra types of files that you want to install +alongside the standard types like F<.pm> and F<.pod> files. For +instance, you might have a F<Bar.dat> file containing some data +related to the C<Foo::Bar> module and you'd like for it to end up as +F<Foo/Bar.dat> somewhere in perl's C<@INC> path so C<Foo::Bar> can +access it easily at runtime. The following code from a sample +C<Build.PL> file demonstrates how to accomplish this: + + use Module::Build; + my $build = Module::Build->new + ( + module_name => 'Foo::Bar', + ...other stuff here... + ); + $build->add_build_element('dat'); + $build->create_build_script; + +This will find all F<.dat> files in the F<lib/> directory, copy them +to the F<blib/lib/> directory during the C<build> action, and install +them during the C<install> action. + +If your extra files aren't located in the C<lib/> directory in your +distribution, you can explicitly say where they are, just as you'd do +with F<.pm> or F<.pod> files: + + use Module::Build; + my $build = new Module::Build + ( + module_name => 'Foo::Bar', + dat_files => {'some/dir/Bar.dat' => 'lib/Foo/Bar.dat'}, + ...other stuff here... + ); + $build->add_build_element('dat'); + $build->create_build_script; + +If your extra files actually need to be created on the user's machine, +or if they need some other kind of special processing, you'll probably +want to subclass C<Module::Build> and create a special method to +process them, named C<process_${kind}_files()>: + + use Module::Build; + my $class = Module::Build->subclass(code => <<'EOF'); + sub process_dat_files { + my $self = shift; + ... locate and process *.dat files, + ... and create something in blib/lib/ + } + EOF + my $build = $class->new + ( + module_name => 'Foo::Bar', + ...other stuff here... + ); + $build->add_build_element('dat'); + $build->create_build_script; + +If your extra files don't go in F<lib/> but in some other place, see +L<"Adding new elements to the install process"> for how to actually +get them installed. + +Please note that these examples use some capabilities of Module::Build +that first appeared in version 0.26. Before that it could +still be done, but the simple cases took a bit more work. + + +=head2 Adding new elements to the install process + +By default, Module::Build creates seven subdirectories of the F<blib> +directory during the build process: F<lib>, F<arch>, F<bin>, +F<script>, F<bindoc>, F<libdoc>, and F<html> (some of these may be +missing or empty if there's nothing to go in them). Anything copied +to these directories during the build will eventually be installed +during the C<install> action (see L<Module::Build/"INSTALL PATHS">. + +If you need to create a new custom type of installable element, e.g. C<conf>, +then you need to tell Module::Build where things in F<blib/conf/> +should be installed. To do this, use the C<install_path> parameter to +the C<new()> method: + + my $build = Module::Build->new + ( + ...other stuff here... + install_path => { conf => $installation_path } + ); + +Or you can call the C<install_path()> method later: + + $build->install_path(conf => $installation_path); + +The user may also specify the path on the command line: + + perl Build.PL --install_path conf=/foo/path/etc + +The important part, though, is that I<somehow> the install path needs +to be set, or else nothing in the F<blib/conf/> directory will get +installed, and a runtime error during the C<install> action will +result. + +See also L<"Adding new file types to the build process"> for how to +create the stuff in F<blib/conf/> in the first place. + + +=head1 EXAMPLES ON CPAN + +Several distributions on CPAN are making good use of various features +of Module::Build. They can serve as real-world examples for others. + + +=head2 SVN-Notify-Mirror + +L<http://search.cpan.org/~jpeacock/SVN-Notify-Mirror/> + +John Peacock, author of the C<SVN-Notify-Mirror> distribution, says: + +=over 4 + +=item 1. Using C<auto_features>, I check to see whether two optional +modules are available - SVN::Notify::Config and Net::SSH; + +=item 2. If the S::N::Config module is loaded, I automatically +generate test files for it during Build (using the C<PL_files> +property). + +=item 3. If the C<ssh_feature> is available, I ask if the user wishes +to perform the ssh tests (since it requires a little preliminary +setup); + +=item 4. Only if the user has C<ssh_feature> and answers yes to the +testing, do I generate a test file. + +I'm sure I could not have handled this complexity with EU::MM, but it +was very easy to do with M::B. + +=back + + +=head2 Modifying an action + +Sometimes you might need an to have an action, say C<./Build install>, +do something unusual. For instance, you might need to change the +ownership of a file or do something else peculiar to your application. + +You can subclass C<Module::Build> on the fly using the C<subclass()> +method and override the methods that perform the actions. You may +need to read through C<Module::Build::Authoring> and +C<Module::Build::API> to find the methods you want to override. All +"action" methods are implemented by a method called "ACTION_" followed +by the action's name, so here's an example of how it would work for +the C<install> action: + + # Build.PL + use Module::Build; + my $class = Module::Build->subclass( + class => "Module::Build::Custom", + code => <<'SUBCLASS' ); + + sub ACTION_install { + my $self = shift; + # YOUR CODE HERE + $self->SUPER::ACTION_install; + } + SUBCLASS + + $class->new( + module_name => 'Your::Module', + # rest of the usual Module::Build parameters + )->create_build_script; + + +=head2 Adding an action + +You can add a new C<./Build> action simply by writing the method for +it in your subclass. Use C<depends_on> to declare that another action +must have been run before your action. + +For example, let's say you wanted to be able to write C<./Build +commit> to test your code and commit it to Subversion. + + # Build.PL + use Module::Build; + my $class = Module::Build->subclass( + class => "Module::Build::Custom", + code => <<'SUBCLASS' ); + + sub ACTION_commit { + my $self = shift; + + $self->depends_on("test"); + $self->do_system(qw(svn commit)); + } + SUBCLASS + + +=head2 Bundling Module::Build + +Note: This section probably needs an update as the technology improves +(see contrib/bundle.pl in the distribution). + +Suppose you want to use some new-ish features of Module::Build, +e.g. newer than the version of Module::Build your users are likely to +already have installed on their systems. The first thing you should +do is set C<configure_requires> to your minimum version of +Module::Build. See L<Module::Build::Authoring>. + +But not every build system honors C<configure_requires> yet. Here's +how you can ship a copy of Module::Build, but still use a newer +installed version to take advantage of any bug fixes and upgrades. + +First, install Module::Build into F<Your-Project/inc/Module-Build>. +CPAN will not index anything in the F<inc> directory so this copy will +not show up in CPAN searches. + + cd Module-Build + perl Build.PL --install_base /path/to/Your-Project/inc/Module-Build + ./Build test + ./Build install + +You should now have all the Module::Build .pm files in +F<Your-Project/inc/Module-Build/lib/perl5>. + +Next, add this to the top of your F<Build.PL>. + + my $Bundled_MB = 0.30; # or whatever version it was. + + # Find out what version of Module::Build is installed or fail quietly. + # This should be cross-platform. + my $Installed_MB = + `$^X -e "eval q{require Module::Build; print Module::Build->VERSION} or exit 1"; + + # some operating systems put a newline at the end of every print. + chomp $Installed_MB; + + $Installed_MB = 0 if $?; + + # Use our bundled copy of Module::Build if it's newer than the installed. + unshift @INC, "inc/Module-Build/lib/perl5" if $Bundled_MB > $Installed_MB; + + require Module::Build; + +And write the rest of your F<Build.PL> normally. Module::Build will +remember your change to C<@INC> and use it when you run F<./Build>. + +In the future, we hope to provide a more automated solution for this +scenario; see C<inc/latest.pm> in the Module::Build distribution for +one indication of the direction we're moving. + + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + + +=head1 COPYRIGHT + +Copyright (c) 2001-2008 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + + +=head1 SEE ALSO + +perl(1), L<Module::Build>(3), L<Module::Build::Authoring>(3), +L<Module::Build::API>(3) + +=cut diff --git a/lib/Module/Build/Dumper.pm b/lib/Module/Build/Dumper.pm new file mode 100644 index 0000000..af4994f --- /dev/null +++ b/lib/Module/Build/Dumper.pm @@ -0,0 +1,19 @@ +package Module::Build::Dumper; +use strict; +use warnings; +our $VERSION = '0.4214'; + +# This is just a split-out of a wrapper function to do Data::Dumper +# stuff "the right way". See: +# http://groups.google.com/group/perl.module.build/browse_thread/thread/c8065052b2e0d741 + +use Data::Dumper; + +sub _data_dump { + my ($self, $data) = @_; + return ("do{ my " + . Data::Dumper->new([$data],['x'])->Purity(1)->Terse(0)->Sortkeys(1)->Dump() + . '$x; }') +} + +1; diff --git a/lib/Module/Build/Notes.pm b/lib/Module/Build/Notes.pm new file mode 100644 index 0000000..e55a26d --- /dev/null +++ b/lib/Module/Build/Notes.pm @@ -0,0 +1,332 @@ +package Module::Build::Notes; + +# A class for persistent hashes + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Data::Dumper; +use Module::Build::Dumper; + +sub new { + my ($class, %args) = @_; + my $file = delete $args{file} or die "Missing required parameter 'file' to new()"; + my $self = bless { + disk => {}, + new => {}, + file => $file, + %args, + }, $class; +} + +sub restore { + my $self = shift; + + open(my $fh, '<', $self->{file}) or die "Can't read $self->{file}: $!"; + $self->{disk} = eval do {local $/; <$fh>}; + die $@ if $@; + close $fh; + $self->{new} = {}; +} + +sub access { + my $self = shift; + return $self->read() unless @_; + + my $key = shift; + return $self->read($key) unless @_; + + my $value = shift; + $self->write({ $key => $value }); + return $self->read($key); +} + +sub has_data { + my $self = shift; + return keys %{$self->read()} > 0; +} + +sub exists { + my ($self, $key) = @_; + return exists($self->{new}{$key}) || exists($self->{disk}{$key}); +} + +sub read { + my $self = shift; + + if (@_) { + # Return 1 key as a scalar + my $key = shift; + return $self->{new}{$key} if exists $self->{new}{$key}; + return $self->{disk}{$key}; + } + + # Return all data + my $out = (keys %{$self->{new}} + ? {%{$self->{disk}}, %{$self->{new}}} + : $self->{disk}); + return wantarray ? %$out : $out; +} + +sub _same { + my ($self, $x, $y) = @_; + return 1 if !defined($x) and !defined($y); + return 0 if !defined($x) or !defined($y); + return $x eq $y; +} + +sub write { + my ($self, $href) = @_; + $href ||= {}; + + @{$self->{new}}{ keys %$href } = values %$href; # Merge + + # Do some optimization to avoid unnecessary writes + foreach my $key (keys %{ $self->{new} }) { + next if ref $self->{new}{$key}; + next if ref $self->{disk}{$key} or !exists $self->{disk}{$key}; + delete $self->{new}{$key} if $self->_same($self->{new}{$key}, $self->{disk}{$key}); + } + + if (my $file = $self->{file}) { + my ($vol, $dir, $base) = File::Spec->splitpath($file); + $dir = File::Spec->catpath($vol, $dir, ''); + return unless -e $dir && -d $dir; # The user needs to arrange for this + + return if -e $file and !keys %{ $self->{new} }; # Nothing to do + + @{$self->{disk}}{ keys %{$self->{new}} } = values %{$self->{new}}; # Merge + $self->_dump($file, $self->{disk}); + + $self->{new} = {}; + } + return $self->read; +} + +sub _dump { + my ($self, $file, $data) = @_; + + open(my $fh, '>', $file) or die "Can't create '$file': $!"; + print {$fh} Module::Build::Dumper->_data_dump($data); + close $fh; +} + +my $orig_template = do { local $/; <DATA> }; +close DATA; + +sub write_config_data { + my ($self, %args) = @_; + + my $template = $orig_template; + $template =~ s/NOTES_NAME/$args{config_module}/g; + $template =~ s/MODULE_NAME/$args{module}/g; + $template =~ s/=begin private\n//; + $template =~ s/=end private/=cut/; + + # strip out private POD markers we use to keep pod from being + # recognized for *this* source file + $template =~ s{$_\n}{} for '=begin private', '=end private'; + + open(my $fh, '>', $args{file}) or die "Can't create '$args{file}': $!"; + print {$fh} $template; + print {$fh} "\n__DATA__\n"; + print {$fh} Module::Build::Dumper->_data_dump([$args{config_data}, $args{feature}, $args{auto_features}]); + close $fh; +} + +1; + + +=head1 NAME + +Module::Build::Notes - Create persistent distribution configuration modules + +=head1 DESCRIPTION + +This module is used internally by Module::Build to create persistent +configuration files that can be installed with a distribution. See +L<Module::Build::ConfigData> for an example. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 COPYRIGHT + +Copyright (c) 2001-2006 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + +=head1 SEE ALSO + +perl(1), L<Module::Build>(3) + +=cut + +__DATA__ +package NOTES_NAME; +use strict; +my $arrayref = eval do {local $/; <DATA>} + or die "Couldn't load ConfigData data: $@"; +close DATA; +my ($config, $features, $auto_features) = @$arrayref; + +sub config { $config->{$_[1]} } + +sub set_config { $config->{$_[1]} = $_[2] } +sub set_feature { $features->{$_[1]} = 0+!!$_[2] } # Constrain to 1 or 0 + +sub auto_feature_names { grep !exists $features->{$_}, keys %$auto_features } + +sub feature_names { + my @features = (keys %$features, auto_feature_names()); + @features; +} + +sub config_names { keys %$config } + +sub write { + my $me = __FILE__; + + # Can't use Module::Build::Dumper here because M::B is only a + # build-time prereq of this module + require Data::Dumper; + + my $mode_orig = (stat $me)[2] & 07777; + chmod($mode_orig | 0222, $me); # Make it writeable + open(my $fh, '+<', $me) or die "Can't rewrite $me: $!"; + seek($fh, 0, 0); + while (<$fh>) { + last if /^__DATA__$/; + } + die "Couldn't find __DATA__ token in $me" if eof($fh); + + seek($fh, tell($fh), 0); + my $data = [$config, $features, $auto_features]; + print($fh 'do{ my ' + . Data::Dumper->new([$data],['x'])->Purity(1)->Dump() + . '$x; }' ); + truncate($fh, tell($fh)); + close $fh; + + chmod($mode_orig, $me) + or warn "Couldn't restore permissions on $me: $!"; +} + +sub feature { + my ($package, $key) = @_; + return $features->{$key} if exists $features->{$key}; + + my $info = $auto_features->{$key} or return 0; + + # Under perl 5.005, each(%$foo) isn't working correctly when $foo + # was reanimated with Data::Dumper and eval(). Not sure why, but + # copying to a new hash seems to solve it. + my %info = %$info; + + require Module::Build; # XXX should get rid of this + while (my ($type, $prereqs) = each %info) { + next if $type eq 'description' || $type eq 'recommends'; + + my %p = %$prereqs; # Ditto here. + while (my ($modname, $spec) = each %p) { + my $status = Module::Build->check_installed_status($modname, $spec); + if ((!$status->{ok}) xor ($type =~ /conflicts$/)) { return 0; } + if ( ! eval "require $modname; 1" ) { return 0; } + } + } + return 1; +} + +=begin private + +=head1 NAME + +NOTES_NAME - Configuration for MODULE_NAME + +=head1 SYNOPSIS + + use NOTES_NAME; + $value = NOTES_NAME->config('foo'); + $value = NOTES_NAME->feature('bar'); + + @names = NOTES_NAME->config_names; + @names = NOTES_NAME->feature_names; + + NOTES_NAME->set_config(foo => $new_value); + NOTES_NAME->set_feature(bar => $new_value); + NOTES_NAME->write; # Save changes + + +=head1 DESCRIPTION + +This module holds the configuration data for the C<MODULE_NAME> +module. It also provides a programmatic interface for getting or +setting that configuration data. Note that in order to actually make +changes, you'll have to have write access to the C<NOTES_NAME> +module, and you should attempt to understand the repercussions of your +actions. + + +=head1 METHODS + +=over 4 + +=item config($name) + +Given a string argument, returns the value of the configuration item +by that name, or C<undef> if no such item exists. + +=item feature($name) + +Given a string argument, returns the value of the feature by that +name, or C<undef> if no such feature exists. + +=item set_config($name, $value) + +Sets the configuration item with the given name to the given value. +The value may be any Perl scalar that will serialize correctly using +C<Data::Dumper>. This includes references, objects (usually), and +complex data structures. It probably does not include transient +things like filehandles or sockets. + +=item set_feature($name, $value) + +Sets the feature with the given name to the given boolean value. The +value will be converted to 0 or 1 automatically. + +=item config_names() + +Returns a list of all the names of config items currently defined in +C<NOTES_NAME>, or in scalar context the number of items. + +=item feature_names() + +Returns a list of all the names of features currently defined in +C<NOTES_NAME>, or in scalar context the number of features. + +=item auto_feature_names() + +Returns a list of all the names of features whose availability is +dynamically determined, or in scalar context the number of such +features. Does not include such features that have later been set to +a fixed value. + +=item write() + +Commits any changes from C<set_config()> and C<set_feature()> to disk. +Requires write access to the C<NOTES_NAME> module. + +=back + + +=head1 AUTHOR + +C<NOTES_NAME> was automatically created using C<Module::Build>. +C<Module::Build> was written by Ken Williams, but he holds no +authorship claim or copyright claim to the contents of C<NOTES_NAME>. + +=end private + diff --git a/lib/Module/Build/PPMMaker.pm b/lib/Module/Build/PPMMaker.pm new file mode 100644 index 0000000..2e6941c --- /dev/null +++ b/lib/Module/Build/PPMMaker.pm @@ -0,0 +1,186 @@ +package Module::Build::PPMMaker; + +use strict; +use warnings; +use Config; + +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; + +# This code is mostly borrowed from ExtUtils::MM_Unix 6.10_03, with a +# few tweaks based on the PPD spec at +# http://www.xav.com/perl/site/lib/XML/PPD.html + +# The PPD spec is based on <http://www.w3.org/TR/NOTE-OSD> + +sub new { + my $package = shift; + return bless {@_}, $package; +} + +sub make_ppd { + my ($self, %args) = @_; + my $build = delete $args{build}; + + my @codebase; + if (exists $args{codebase}) { + @codebase = ref $args{codebase} ? @{$args{codebase}} : ($args{codebase}); + } else { + my $distfile = $build->ppm_name . '.tar.gz'; + print "Using default codebase '$distfile'\n"; + @codebase = ($distfile); + } + + my %dist; + foreach my $info (qw(name author abstract version)) { + my $method = "dist_$info"; + $dist{$info} = $build->$method() or die "Can't determine distribution's $info\n"; + } + + $self->_simple_xml_escape($_) foreach $dist{abstract}, @{$dist{author}}; + + # TODO: could add <LICENSE HREF=...> tag if we knew what the URLs were for + # various licenses + my $ppd = <<"PPD"; +<SOFTPKG NAME=\"$dist{name}\" VERSION=\"$dist{version}\"> + <ABSTRACT>$dist{abstract}</ABSTRACT> +@{[ join "\n", map " <AUTHOR>$_</AUTHOR>", @{$dist{author}} ]} + <IMPLEMENTATION> +PPD + + # We don't include recommended dependencies because PPD has no way + # to distinguish them from normal dependencies. We don't include + # build_requires dependencies because the PPM installer doesn't + # build or test before installing. And obviously we don't include + # conflicts either. + + foreach my $type (qw(requires)) { + my $prereq = $build->$type(); + while (my ($modname, $spec) = each %$prereq) { + next if $modname eq 'perl'; + + my $min_version = '0.0'; + foreach my $c ($build->_parse_conditions($spec)) { + my ($op, $version) = $c =~ /^\s* (<=?|>=?|==|!=) \s* ([\w.]+) \s*$/x; + + # This is a nasty hack because it fails if there is no >= op + if ($op eq '>=') { + $min_version = $version; + last; + } + } + + # PPM4 spec requires a '::' for top level modules + $modname .= '::' unless $modname =~ /::/; + + $ppd .= qq! <REQUIRE NAME="$modname" VERSION="$min_version" />\n!; + } + } + + # We only include these tags if this module involves XS, on the + # assumption that pure Perl modules will work on any OS. + if (keys %{$build->find_xs_files}) { + my $perl_version = $self->_ppd_version($build->perl_version); + $ppd .= sprintf(<<'EOF', $self->_varchname($build->config) ); + <ARCHITECTURE NAME="%s" /> +EOF + } + + foreach my $codebase (@codebase) { + $self->_simple_xml_escape($codebase); + $ppd .= sprintf(<<'EOF', $codebase); + <CODEBASE HREF="%s" /> +EOF + } + + $ppd .= <<'EOF'; + </IMPLEMENTATION> +</SOFTPKG> +EOF + + my $ppd_file = "$dist{name}.ppd"; + open(my $fh, '>', $ppd_file) + or die "Cannot write to $ppd_file: $!"; + + binmode($fh, ":utf8") + if $] >= 5.008 && $Config{useperlio}; + print $fh $ppd; + close $fh; + + return $ppd_file; +} + +sub _ppd_version { + my ($self, $version) = @_; + + # generates something like "0,18,0,0" + return join ',', (split(/\./, $version), (0)x4)[0..3]; +} + +sub _varchname { # Copied from PPM.pm + my ($self, $config) = @_; + my $varchname = $config->{archname}; + # Append "-5.8" to architecture name for Perl 5.8 and later + if ($] >= 5.008) { + my $vstring = sprintf "%vd", $^V; + $vstring =~ s/\.\d+$//; + $varchname .= "-$vstring"; + } + return $varchname; +} + +{ + my %escapes = ( + "\n" => "\\n", + '"' => '"', + '&' => '&', + '>' => '>', + '<' => '<', + ); + my $rx = join '|', keys %escapes; + + sub _simple_xml_escape { + $_[1] =~ s/($rx)/$escapes{$1}/go; + } +} + +1; +__END__ + + +=head1 NAME + +Module::Build::PPMMaker - Perl Package Manager file creation + +=head1 SYNOPSIS + + On the command line, builds a .ppd file: + ./Build ppd + + +=head1 DESCRIPTION + +This package contains the code that builds F<.ppd> "Perl Package +Description" files, in support of ActiveState's "Perl Package +Manager". Details are here: +L<http://aspn.activestate.com/ASPN/Downloads/ActivePerl/PPM/> + + +=head1 AUTHOR + +Dave Rolsky <autarch@urth.org>, Ken Williams <kwilliams@cpan.org> + + +=head1 COPYRIGHT + +Copyright (c) 2001-2006 Ken Williams. All rights reserved. + +This library is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + + +=head1 SEE ALSO + +perl(1), Module::Build(3) + +=cut diff --git a/lib/Module/Build/Platform/Default.pm b/lib/Module/Build/Platform/Default.pm new file mode 100644 index 0000000..562420b --- /dev/null +++ b/lib/Module/Build/Platform/Default.pm @@ -0,0 +1,32 @@ +package Module::Build::Platform::Default; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Base; + +our @ISA = qw(Module::Build::Base); + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::Default - Stub class for unknown platforms + +=head1 DESCRIPTION + +The sole purpose of this module is to inherit from +C<Module::Build::Base>. Please see the L<Module::Build> for the docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/MacOS.pm b/lib/Module/Build/Platform/MacOS.pm new file mode 100644 index 0000000..55d73f5 --- /dev/null +++ b/lib/Module/Build/Platform/MacOS.pm @@ -0,0 +1,151 @@ +package Module::Build::Platform::MacOS; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Base; +our @ISA = qw(Module::Build::Base); + +use ExtUtils::Install; + +sub have_forkpipe { 0 } + +sub new { + my $class = shift; + my $self = $class->SUPER::new(@_); + + # $Config{sitelib} and $Config{sitearch} are, unfortunately, missing. + foreach ('sitelib', 'sitearch') { + $self->config($_ => $self->config("install$_")) + unless $self->config($_); + } + + # For some reason $Config{startperl} is filled with a bunch of crap. + (my $sp = $self->config('startperl')) =~ s/.*Exit \{Status\}\s//; + $self->config(startperl => $sp); + + return $self; +} + +sub make_executable { + my $self = shift; + require MacPerl; + foreach (@_) { + MacPerl::SetFileInfo('McPL', 'TEXT', $_); + } +} + +sub dispatch { + my $self = shift; + + if( !@_ and !@ARGV ) { + require MacPerl; + + # What comes first in the action list. + my @action_list = qw(build test install); + my %actions = map {+($_, 1)} $self->known_actions; + delete @actions{@action_list}; + push @action_list, sort { $a cmp $b } keys %actions; + + my %toolserver = map {+$_ => 1} qw(test disttest diff testdb); + foreach (@action_list) { + $_ .= ' *' if $toolserver{$_}; + } + + my $cmd = MacPerl::Pick("What build command? ('*' requires ToolServer)", @action_list); + return unless defined $cmd; + $cmd =~ s/ \*$//; + $ARGV[0] = ($cmd); + + my $args = MacPerl::Ask('Any extra arguments? (ie. verbose=1)', ''); + return unless defined $args; + push @ARGV, $self->split_like_shell($args); + } + + $self->SUPER::dispatch(@_); +} + +sub ACTION_realclean { + my $self = shift; + chmod 0666, $self->{properties}{build_script}; + $self->SUPER::ACTION_realclean; +} + +# ExtUtils::Install has a hard-coded '.' directory in versions less +# than 1.30. We use a sneaky trick to turn that into ':'. +# +# Note that we do it here in a cross-platform way, so this code could +# actually go in Module::Build::Base. But we put it here to be less +# intrusive for other platforms. + +sub ACTION_install { + my $self = shift; + + return $self->SUPER::ACTION_install(@_) + if eval {ExtUtils::Install->VERSION('1.30'); 1}; + + local $^W = 0; # Avoid a 'redefine' warning + local *ExtUtils::Install::find = sub { + my ($code, @dirs) = @_; + + @dirs = map { $_ eq '.' ? File::Spec->curdir : $_ } @dirs; + + return File::Find::find($code, @dirs); + }; + + return $self->SUPER::ACTION_install(@_); +} + +1; +__END__ + +=head1 NAME + +Module::Build::Platform::MacOS - Builder class for MacOS platforms + +=head1 DESCRIPTION + +The sole purpose of this module is to inherit from +C<Module::Build::Base> and override a few methods. Please see +L<Module::Build> for the docs. + +=head2 Overridden Methods + +=over 4 + +=item new() + +MacPerl doesn't define $Config{sitelib} or $Config{sitearch} for some +reason, but $Config{installsitelib} and $Config{installsitearch} are +there. So we copy the install variables to the other location + +=item make_executable() + +On MacOS we set the file type and creator to MacPerl so it will run +with a double-click. + +=item dispatch() + +Because there's no easy way to say "./Build test" on MacOS, if +dispatch is called with no arguments and no @ARGV a dialog box will +pop up asking what action to take and any extra arguments. + +Default action is "test". + +=item ACTION_realclean() + +Need to unlock the Build program before deleting. + +=back + +=head1 AUTHOR + +Michael G Schwern <schwern@pobox.com> + + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/Unix.pm b/lib/Module/Build/Platform/Unix.pm new file mode 100644 index 0000000..f3cc511 --- /dev/null +++ b/lib/Module/Build/Platform/Unix.pm @@ -0,0 +1,72 @@ +package Module::Build::Platform::Unix; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Base; + +our @ISA = qw(Module::Build::Base); + +sub is_executable { + # We consider the owner bit to be authoritative on a file, because + # -x will always return true if the user is root and *any* + # executable bit is set. The -x test seems to try to answer the + # question "can I execute this file", but I think we want "is this + # file executable". + + my ($self, $file) = @_; + return +(stat $file)[2] & 0100; +} + +sub _startperl { "#! " . shift()->perl } + +sub _construct { + my $self = shift()->SUPER::_construct(@_); + + # perl 5.8.1-RC[1-3] had some broken %Config entries, and + # unfortunately Red Hat 9 shipped it like that. Fix 'em up here. + my $c = $self->{config}; + for (qw(siteman1 siteman3 vendorman1 vendorman3)) { + $c->{"install${_}dir"} ||= $c->{"install${_}"}; + } + + return $self; +} + +# Open group says username should be portable filename characters, +# but some Unix OS working with ActiveDirectory wind up with user-names +# with back-slashes in the name. The new code below is very liberal +# in what it accepts. +sub _detildefy { + my ($self, $value) = @_; + $value =~ s[^~([^/]+)?(?=/|$)] # tilde with optional username + [$1 ? + (eval{(getpwnam $1)[7]} || "~$1") : + ($ENV{HOME} || eval{(getpwuid $>)[7]} || glob("~")) + ]ex; + return $value; +} + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::Unix - Builder class for Unix platforms + +=head1 DESCRIPTION + +The sole purpose of this module is to inherit from +C<Module::Build::Base>. Please see the L<Module::Build> for the docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/VMS.pm b/lib/Module/Build/Platform/VMS.pm new file mode 100644 index 0000000..ebe8c6c --- /dev/null +++ b/lib/Module/Build/Platform/VMS.pm @@ -0,0 +1,522 @@ +package Module::Build::Platform::VMS; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Base; +use Config; + +our @ISA = qw(Module::Build::Base); + + + +=head1 NAME + +Module::Build::Platform::VMS - Builder class for VMS platforms + +=head1 DESCRIPTION + +This module inherits from C<Module::Build::Base> and alters a few +minor details of its functionality. Please see L<Module::Build> for +the general docs. + +=head2 Overridden Methods + +=over 4 + +=item _set_defaults + +Change $self->{build_script} to 'Build.com' so @Build works. + +=cut + +sub _set_defaults { + my $self = shift; + $self->SUPER::_set_defaults(@_); + + $self->{properties}{build_script} = 'Build.com'; +} + + +=item cull_args + +'@Build foo' on VMS will not preserve the case of 'foo'. Rather than forcing +people to write '@Build "foo"' we'll dispatch case-insensitively. + +=cut + +sub cull_args { + my $self = shift; + my($action, $args) = $self->SUPER::cull_args(@_); + my @possible_actions = grep { lc $_ eq lc $action } $self->known_actions; + + die "Ambiguous action '$action'. Could be one of @possible_actions" + if @possible_actions > 1; + + return ($possible_actions[0], $args); +} + + +=item manpage_separator + +Use '__' instead of '::'. + +=cut + +sub manpage_separator { + return '__'; +} + + +=item prefixify + +Prefixify taking into account VMS' filepath syntax. + +=cut + +# Translated from ExtUtils::MM_VMS::prefixify() + +sub _catprefix { + my($self, $rprefix, $default) = @_; + + my($rvol, $rdirs) = File::Spec->splitpath($rprefix); + if( $rvol ) { + return File::Spec->catpath($rvol, + File::Spec->catdir($rdirs, $default), + '' + ) + } + else { + return File::Spec->catdir($rdirs, $default); + } +} + + +sub _prefixify { + my($self, $path, $sprefix, $type) = @_; + my $rprefix = $self->prefix; + + return '' unless defined $path; + + $self->log_verbose(" prefixify $path from $sprefix to $rprefix\n"); + + # Translate $(PERLPREFIX) to a real path. + $rprefix = VMS::Filespec::vmspath($rprefix) if $rprefix; + $sprefix = VMS::Filespec::vmspath($sprefix) if $sprefix; + + $self->log_verbose(" rprefix translated to $rprefix\n". + " sprefix translated to $sprefix\n"); + + if( length($path) == 0 ) { + $self->log_verbose(" no path to prefixify.\n") + } + elsif( !File::Spec->file_name_is_absolute($path) ) { + $self->log_verbose(" path is relative, not prefixifying.\n"); + } + elsif( $sprefix eq $rprefix ) { + $self->log_verbose(" no new prefix.\n"); + } + else { + my($path_vol, $path_dirs) = File::Spec->splitpath( $path ); + my $vms_prefix = $self->config('vms_prefix'); + if( $path_vol eq $vms_prefix.':' ) { + $self->log_verbose(" $vms_prefix: seen\n"); + + $path_dirs =~ s{^\[}{\[.} unless $path_dirs =~ m{^\[\.}; + $path = $self->_catprefix($rprefix, $path_dirs); + } + else { + $self->log_verbose(" cannot prefixify.\n"); + return $self->prefix_relpaths($self->installdirs, $type); + } + } + + $self->log_verbose(" now $path\n"); + + return $path; +} + +=item _quote_args + +Command-line arguments (but not the command itself) must be quoted +to ensure case preservation. + +=cut + +sub _quote_args { + # Returns a string that can become [part of] a command line with + # proper quoting so that the subprocess sees this same list of args, + # or if we get a single arg that is an array reference, quote the + # elements of it and return the reference. + my ($self, @args) = @_; + my $got_arrayref = (scalar(@args) == 1 + && ref $args[0] eq 'ARRAY') + ? 1 + : 0; + + # Do not quote qualifiers that begin with '/'. + map { if (!/^\//) { + $_ =~ s/\"/""/g; # escape C<"> by doubling + $_ = q(").$_.q("); + } + } + ($got_arrayref ? @{$args[0]} + : @args + ); + + return $got_arrayref ? $args[0] + : join(' ', @args); +} + +=item have_forkpipe + +There is no native fork(), so some constructs depending on it are not +available. + +=cut + +sub have_forkpipe { 0 } + +=item _backticks + +Override to ensure that we quote the arguments but not the command. + +=cut + +sub _backticks { + # The command must not be quoted but the arguments to it must be. + my ($self, @cmd) = @_; + my $cmd = shift @cmd; + my $args = $self->_quote_args(@cmd); + return `$cmd $args`; +} + +=item find_command + +Local an executable program + +=cut + +sub find_command { + my ($self, $command) = @_; + + # a lot of VMS executables have a symbol defined + # check those first + if ( $^O eq 'VMS' ) { + require VMS::DCLsym; + my $syms = VMS::DCLsym->new; + return $command if scalar $syms->getsym( uc $command ); + } + + $self->SUPER::find_command($command); +} + +# _maybe_command copied from ExtUtils::MM_VMS::maybe_command + +=item _maybe_command (override) + +Follows VMS naming conventions for executable files. +If the name passed in doesn't exactly match an executable file, +appends F<.Exe> (or equivalent) to check for executable image, and F<.Com> +to check for DCL procedure. If this fails, checks directories in DCL$PATH +and finally F<Sys$System:> for an executable file having the name specified, +with or without the F<.Exe>-equivalent suffix. + +=cut + +sub _maybe_command { + my($self,$file) = @_; + return $file if -x $file && ! -d _; + my(@dirs) = (''); + my(@exts) = ('',$Config{'exe_ext'},'.exe','.com'); + + if ($file !~ m![/:>\]]!) { + for (my $i = 0; defined $ENV{"DCL\$PATH;$i"}; $i++) { + my $dir = $ENV{"DCL\$PATH;$i"}; + $dir .= ':' unless $dir =~ m%[\]:]$%; + push(@dirs,$dir); + } + push(@dirs,'Sys$System:'); + foreach my $dir (@dirs) { + my $sysfile = "$dir$file"; + foreach my $ext (@exts) { + return $file if -x "$sysfile$ext" && ! -d _; + } + } + } + return; +} + +=item do_system + +Override to ensure that we quote the arguments but not the command. + +=cut + +sub do_system { + # The command must not be quoted but the arguments to it must be. + my ($self, @cmd) = @_; + $self->log_verbose("@cmd\n"); + my $cmd = shift @cmd; + my $args = $self->_quote_args(@cmd); + return !system("$cmd $args"); +} + +=item oneliner + +Override to ensure that we do not quote the command. + +=cut + +sub oneliner { + my $self = shift; + my $oneliner = $self->SUPER::oneliner(@_); + + $oneliner =~ s/^\"\S+\"//; + + return "MCR $^X $oneliner"; +} + +=item rscan_dir + +Inherit the standard version but remove dots at end of name. +If the extended character set is in effect, do not remove dots from filenames +with Unix path delimiters. + +=cut + +sub rscan_dir { + my ($self, $dir, $pattern) = @_; + + my $result = $self->SUPER::rscan_dir( $dir, $pattern ); + + for my $file (@$result) { + if (!_efs() && ($file =~ m#/#)) { + $file =~ s/\.$//; + } + } + return $result; +} + +=item dist_dir + +Inherit the standard version but replace embedded dots with underscores because +a dot is the directory delimiter on VMS. + +=cut + +sub dist_dir { + my $self = shift; + + my $dist_dir = $self->SUPER::dist_dir; + $dist_dir =~ s/\./_/g unless _efs(); + return $dist_dir; +} + +=item man3page_name + +Inherit the standard version but chop the extra manpage delimiter off the front if +there is one. The VMS version of splitdir('[.foo]') returns '', 'foo'. + +=cut + +sub man3page_name { + my $self = shift; + + my $mpname = $self->SUPER::man3page_name( shift ); + my $sep = $self->manpage_separator; + $mpname =~ s/^$sep//; + return $mpname; +} + +=item expand_test_dir + +Inherit the standard version but relativize the paths as the native glob() doesn't +do that for us. + +=cut + +sub expand_test_dir { + my ($self, $dir) = @_; + + my @reldirs = $self->SUPER::expand_test_dir( $dir ); + + for my $eachdir (@reldirs) { + my ($v,$d,$f) = File::Spec->splitpath( $eachdir ); + my $reldir = File::Spec->abs2rel( File::Spec->catpath( $v, $d, '' ) ); + $eachdir = File::Spec->catfile( $reldir, $f ); + } + return @reldirs; +} + +=item _detildefy + +The home-grown glob() does not currently handle tildes, so provide limited support +here. Expect only UNIX format file specifications for now. + +=cut + +sub _detildefy { + my ($self, $arg) = @_; + + # Apparently double ~ are not translated. + return $arg if ($arg =~ /^~~/); + + # Apparently ~ followed by whitespace are not translated. + return $arg if ($arg =~ /^~ /); + + if ($arg =~ /^~/) { + my $spec = $arg; + + # Remove the tilde + $spec =~ s/^~//; + + # Remove any slash following the tilde if present. + $spec =~ s#^/##; + + # break up the paths for the merge + my $home = VMS::Filespec::unixify($ENV{HOME}); + + # In the default VMS mode, the trailing slash is present. + # In Unix report mode it is not. The parsing logic assumes that + # it is present. + $home .= '/' unless $home =~ m#/$#; + + # Trivial case of just ~ by it self + if ($spec eq '') { + $home =~ s#/$##; + return $home; + } + + my ($hvol, $hdir, $hfile) = File::Spec::Unix->splitpath($home); + if ($hdir eq '') { + # Someone has tampered with $ENV{HOME} + # So hfile is probably the directory since this should be + # a path. + $hdir = $hfile; + } + + my ($vol, $dir, $file) = File::Spec::Unix->splitpath($spec); + + my @hdirs = File::Spec::Unix->splitdir($hdir); + my @dirs = File::Spec::Unix->splitdir($dir); + + unless ($arg =~ m#^~/#) { + # There is a home directory after the tilde, but it will already + # be present in in @hdirs so we need to remove it by from @dirs. + + shift @dirs; + } + my $newdirs = File::Spec::Unix->catdir(@hdirs, @dirs); + + $arg = File::Spec::Unix->catpath($hvol, $newdirs, $file); + } + return $arg; + +} + +=item find_perl_interpreter + +On VMS, $^X returns the fully qualified absolute path including version +number. It's logically impossible to improve on it for getting the perl +we're currently running, and attempting to manipulate it is usually +lossy. + +=cut + +sub find_perl_interpreter { + return VMS::Filespec::vmsify($^X); +} + +=item localize_file_path + +Convert the file path to the local syntax + +=cut + +sub localize_file_path { + my ($self, $path) = @_; + $path = VMS::Filespec::vmsify($path); + $path =~ s/\.\z//; + return $path; +} + +=item localize_dir_path + +Convert the directory path to the local syntax + +=cut + +sub localize_dir_path { + my ($self, $path) = @_; + return VMS::Filespec::vmspath($path); +} + +=item ACTION_clean + +The home-grown glob() expands a bit too aggressively when given a bare name, +so default in a zero-length extension. + +=cut + +sub ACTION_clean { + my ($self) = @_; + foreach my $item (map glob(VMS::Filespec::rmsexpand($_, '.;0')), $self->cleanup) { + $self->delete_filetree($item); + } +} + + +# Need to look up the feature settings. The preferred way is to use the +# VMS::Feature module, but that may not be available to dual life modules. + +my $use_feature; +BEGIN { + if (eval { local $SIG{__DIE__}; require VMS::Feature; }) { + $use_feature = 1; + } +} + +# Need to look up the UNIX report mode. This may become a dynamic mode +# in the future. +sub _unix_rpt { + my $unix_rpt; + if ($use_feature) { + $unix_rpt = VMS::Feature::current("filename_unix_report"); + } else { + my $env_unix_rpt = $ENV{'DECC$FILENAME_UNIX_REPORT'} || ''; + $unix_rpt = $env_unix_rpt =~ /^[ET1]/i; + } + return $unix_rpt; +} + +# Need to look up the EFS character set mode. This may become a dynamic +# mode in the future. +sub _efs { + my $efs; + if ($use_feature) { + $efs = VMS::Feature::current("efs_charset"); + } else { + my $env_efs = $ENV{'DECC$EFS_CHARSET'} || ''; + $efs = $env_efs =~ /^[ET1]/i; + } + return $efs; +} + +=back + +=head1 AUTHOR + +Michael G Schwern <schwern@pobox.com> +Ken Williams <kwilliams@cpan.org> +Craig A. Berry <craigberry@mac.com> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut + +1; +__END__ diff --git a/lib/Module/Build/Platform/VOS.pm b/lib/Module/Build/Platform/VOS.pm new file mode 100644 index 0000000..786073a --- /dev/null +++ b/lib/Module/Build/Platform/VOS.pm @@ -0,0 +1,33 @@ +package Module::Build::Platform::VOS; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Base; + +our @ISA = qw(Module::Build::Base); + + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::VOS - Builder class for VOS platforms + +=head1 DESCRIPTION + +The sole purpose of this module is to inherit from +C<Module::Build::Base>. Please see the L<Module::Build> for the docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/Windows.pm b/lib/Module/Build/Platform/Windows.pm new file mode 100644 index 0000000..4f65507 --- /dev/null +++ b/lib/Module/Build/Platform/Windows.pm @@ -0,0 +1,318 @@ +package Module::Build::Platform::Windows; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; + +use Config; +use File::Basename; +use File::Spec; + +use Module::Build::Base; + +our @ISA = qw(Module::Build::Base); + + +sub manpage_separator { + return '.'; +} + +sub have_forkpipe { 0 } + +sub _detildefy { + my ($self, $value) = @_; + $value =~ s,^~(?= [/\\] | $ ),$ENV{HOME},x + if $ENV{HOME}; + return $value; +} + +sub ACTION_realclean { + my ($self) = @_; + + $self->SUPER::ACTION_realclean(); + + my $basename = basename($0); + $basename =~ s/(?:\.bat)?$//i; + + if ( lc $basename eq lc $self->build_script ) { + if ( $self->build_bat ) { + $self->log_verbose("Deleting $basename.bat\n"); + my $full_progname = $0; + $full_progname =~ s/(?:\.bat)?$/.bat/i; + + # Voodoo required to have a batch file delete itself without error; + # Syntax differs between 9x & NT: the later requires a null arg (???) + require Win32; + my $null_arg = (Win32::IsWinNT()) ? '""' : ''; + my $cmd = qq(start $null_arg /min "\%comspec\%" /c del "$full_progname"); + + open(my $fh, '>>', "$basename.bat") + or die "Can't create $basename.bat: $!"; + print $fh $cmd; + close $fh ; + } else { + $self->delete_filetree($self->build_script . '.bat'); + } + } +} + +sub make_executable { + my $self = shift; + + $self->SUPER::make_executable(@_); + + foreach my $script (@_) { + + # Native batch script + if ( $script =~ /\.(bat|cmd)$/ ) { + $self->SUPER::make_executable($script); + next; + + # Perl script that needs to be wrapped in a batch script + } else { + my %opts = (); + if ( $script eq $self->build_script ) { + $opts{ntargs} = q(-x -S %0 --build_bat %*); + $opts{otherargs} = q(-x -S "%0" --build_bat %1 %2 %3 %4 %5 %6 %7 %8 %9); + } + + my $out = eval {$self->pl2bat(in => $script, update => 1, %opts)}; + if ( $@ ) { + $self->log_warn("WARNING: Unable to convert file '$script' to an executable script:\n$@"); + } else { + $self->SUPER::make_executable($out); + } + } + } +} + +# This routine was copied almost verbatim from the 'pl2bat' utility +# distributed with perl. It requires too much voodoo with shell quoting +# differences and shortcomings between the various flavors of Windows +# to reliably shell out +sub pl2bat { + my $self = shift; + my %opts = @_; + + # NOTE: %0 is already enclosed in doublequotes by cmd.exe, as appropriate + $opts{ntargs} = '-x -S %0 %*' unless exists $opts{ntargs}; + $opts{otherargs} = '-x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9' unless exists $opts{otherargs}; + + $opts{stripsuffix} = '/\\.plx?/' unless exists $opts{stripsuffix}; + $opts{stripsuffix} = ($opts{stripsuffix} =~ m{^/([^/]*[^/\$]|)\$?/?$} ? $1 : "\Q$opts{stripsuffix}\E"); + + unless (exists $opts{out}) { + $opts{out} = $opts{in}; + $opts{out} =~ s/$opts{stripsuffix}$//oi; + $opts{out} .= '.bat' unless $opts{in} =~ /\.bat$/i or $opts{in} =~ /^-$/; + } + + my $head = <<EOT; + \@rem = '--*-Perl-*-- + \@echo off + if "%OS%" == "Windows_NT" goto WinNT + perl $opts{otherargs} + goto endofperl + :WinNT + perl $opts{ntargs} + if NOT "%COMSPEC%" == "%SystemRoot%\\system32\\cmd.exe" goto endofperl + if %errorlevel% == 9009 echo You do not have Perl in your PATH. + if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul + goto endofperl + \@rem '; +EOT + + $head =~ s/^\s+//gm; + my $headlines = 2 + ($head =~ tr/\n/\n/); + my $tail = "\n__END__\n:endofperl\n"; + + my $linedone = 0; + my $taildone = 0; + my $linenum = 0; + my $skiplines = 0; + + my $start = $Config{startperl}; + $start = "#!perl" unless $start =~ /^#!.*perl/; + + open(my $in, '<', "$opts{in}") or die "Can't open $opts{in}: $!"; + my @file = <$in>; + close($in); + + foreach my $line ( @file ) { + $linenum++; + if ( $line =~ /^:endofperl\b/ ) { + if (!exists $opts{update}) { + warn "$opts{in} has already been converted to a batch file!\n"; + return; + } + $taildone++; + } + if ( not $linedone and $line =~ /^#!.*perl/ ) { + if (exists $opts{update}) { + $skiplines = $linenum - 1; + $line .= "#line ".(1+$headlines)."\n"; + } else { + $line .= "#line ".($linenum+$headlines)."\n"; + } + $linedone++; + } + if ( $line =~ /^#\s*line\b/ and $linenum == 2 + $skiplines ) { + $line = ""; + } + } + + open(my $out, '>', "$opts{out}") or die "Can't open $opts{out}: $!"; + print $out $head; + print $out $start, ( $opts{usewarnings} ? " -w" : "" ), + "\n#line ", ($headlines+1), "\n" unless $linedone; + print $out @file[$skiplines..$#file]; + print $out $tail unless $taildone; + close($out); + + return $opts{out}; +} + + +sub _quote_args { + # Returns a string that can become [part of] a command line with + # proper quoting so that the subprocess sees this same list of args. + my ($self, @args) = @_; + + my @quoted; + + for (@args) { + if ( /^[^\s*?!\$<>;|'"\[\]\{\}]+$/ ) { + # Looks pretty safe + push @quoted, $_; + } else { + # XXX this will obviously have to improve - is there already a + # core module lying around that does proper quoting? + s/"/\\"/g; + push @quoted, qq("$_"); + } + } + + return join " ", @quoted; +} + + +sub split_like_shell { + # As it turns out, Windows command-parsing is very different from + # Unix command-parsing. Double-quotes mean different things, + # backslashes don't necessarily mean escapes, and so on. So we + # can't use Text::ParseWords::shellwords() to break a command string + # into words. The algorithm below was bashed out by Randy and Ken + # (mostly Randy), and there are a lot of regression tests, so we + # should feel free to adjust if desired. + + (my $self, local $_) = @_; + + return @$_ if defined() && ref() eq 'ARRAY'; + + my @argv; + return @argv unless defined() && length(); + + my $arg = ''; + my( $i, $quote_mode ) = ( 0, 0 ); + + while ( $i < length() ) { + + my $ch = substr( $_, $i , 1 ); + my $next_ch = substr( $_, $i+1, 1 ); + + if ( $ch eq '\\' && $next_ch eq '"' ) { + $arg .= '"'; + $i++; + } elsif ( $ch eq '\\' && $next_ch eq '\\' ) { + $arg .= '\\'; + $i++; + } elsif ( $ch eq '"' && $next_ch eq '"' && $quote_mode ) { + $quote_mode = !$quote_mode; + $arg .= '"'; + $i++; + } elsif ( $ch eq '"' && $next_ch eq '"' && !$quote_mode && + ( $i + 2 == length() || + substr( $_, $i + 2, 1 ) eq ' ' ) + ) { # for cases like: a"" => [ 'a' ] + push( @argv, $arg ); + $arg = ''; + $i += 2; + } elsif ( $ch eq '"' ) { + $quote_mode = !$quote_mode; + } elsif ( $ch eq ' ' && !$quote_mode ) { + push( @argv, $arg ) if $arg; + $arg = ''; + ++$i while substr( $_, $i + 1, 1 ) eq ' '; + } else { + $arg .= $ch; + } + + $i++; + } + + push( @argv, $arg ) if defined( $arg ) && length( $arg ); + return @argv; +} + + +# system(@cmd) does not like having double-quotes in it on Windows. +# So we quote them and run it as a single command. +sub do_system { + my ($self, @cmd) = @_; + + my $cmd = $self->_quote_args(@cmd); + my $status = system($cmd); + if ($status and $! =~ /Argument list too long/i) { + my $env_entries = ''; + foreach (sort keys %ENV) { $env_entries .= "$_=>".length($ENV{$_})."; " } + warn "'Argument list' was 'too long', env lengths are $env_entries"; + } + return !$status; +} + +# Copied from ExtUtils::MM_Win32 +sub _maybe_command { + my($self,$file) = @_; + my @e = exists($ENV{'PATHEXT'}) + ? split(/;/, $ENV{PATHEXT}) + : qw(.com .exe .bat .cmd); + my $e = ''; + for (@e) { $e .= "\Q$_\E|" } + chop $e; + # see if file ends in one of the known extensions + if ($file =~ /($e)$/i) { + return $file if -e $file; + } + else { + for (@e) { + return "$file$_" if -e "$file$_"; + } + } + return; +} + + +1; + +__END__ + +=head1 NAME + +Module::Build::Platform::Windows - Builder class for Windows platforms + +=head1 DESCRIPTION + +The sole purpose of this module is to inherit from +C<Module::Build::Base> and override a few methods. Please see +L<Module::Build> for the docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org>, Randy W. Sims <RandyS@ThePierianSpring.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3) + +=cut diff --git a/lib/Module/Build/Platform/aix.pm b/lib/Module/Build/Platform/aix.pm new file mode 100644 index 0000000..28eeb1a --- /dev/null +++ b/lib/Module/Build/Platform/aix.pm @@ -0,0 +1,39 @@ +package Module::Build::Platform::aix; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Platform::Unix; + +our @ISA = qw(Module::Build::Platform::Unix); + +# This class isn't necessary anymore, but we can't delete it, because +# some people might still have the old copy in their @INC, containing +# code we don't want to execute, so we have to make sure an upgrade +# will replace it with this empty subclass. + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::aix - Builder class for AIX platform + +=head1 DESCRIPTION + +This module provides some routines very specific to the AIX +platform. + +Please see the L<Module::Build> for the general docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/cygwin.pm b/lib/Module/Build/Platform/cygwin.pm new file mode 100644 index 0000000..034b9e1 --- /dev/null +++ b/lib/Module/Build/Platform/cygwin.pm @@ -0,0 +1,54 @@ +package Module::Build::Platform::cygwin; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Platform::Unix; + +our @ISA = qw(Module::Build::Platform::Unix); + +sub manpage_separator { + '.' +} + +# Copied from ExtUtils::MM_Cygwin::maybe_command() +# If our path begins with F</cygdrive/> then we use the Windows version +# to determine if it may be a command. Otherwise we use the tests +# from C<ExtUtils::MM_Unix>. + +sub _maybe_command { + my ($self, $file) = @_; + + if ($file =~ m{^/cygdrive/}i) { + require Module::Build::Platform::Windows; + return Module::Build::Platform::Windows->_maybe_command($file); + } + + return $self->SUPER::_maybe_command($file); +} + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::cygwin - Builder class for Cygwin platform + +=head1 DESCRIPTION + +This module provides some routines very specific to the cygwin +platform. + +Please see the L<Module::Build> for the general docs. + +=head1 AUTHOR + +Initial stub by Yitzchak Scott-Thoennes <sthoenna@efn.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/darwin.pm b/lib/Module/Build/Platform/darwin.pm new file mode 100644 index 0000000..204ed18 --- /dev/null +++ b/lib/Module/Build/Platform/darwin.pm @@ -0,0 +1,39 @@ +package Module::Build::Platform::darwin; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Platform::Unix; + +our @ISA = qw(Module::Build::Platform::Unix); + +# This class isn't necessary anymore, but we can't delete it, because +# some people might still have the old copy in their @INC, containing +# code we don't want to execute, so we have to make sure an upgrade +# will replace it with this empty subclass. + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::darwin - Builder class for Mac OS X platform + +=head1 DESCRIPTION + +This module provides some routines very specific to the Mac OS X +platform. + +Please see the L<Module::Build> for the general docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/Platform/os2.pm b/lib/Module/Build/Platform/os2.pm new file mode 100644 index 0000000..69fdf8e --- /dev/null +++ b/lib/Module/Build/Platform/os2.pm @@ -0,0 +1,48 @@ +package Module::Build::Platform::os2; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; +use Module::Build::Platform::Unix; + +our @ISA = qw(Module::Build::Platform::Unix); + +sub manpage_separator { '.' } + +sub have_forkpipe { 0 } + +# Copied from ExtUtils::MM_OS2::maybe_command +sub _maybe_command { + my($self,$file) = @_; + $file =~ s,[/\\]+,/,g; + return $file if -x $file && ! -d _; + return "$file.exe" if -x "$file.exe" && ! -d _; + return "$file.cmd" if -x "$file.cmd" && ! -d _; + return; +} + +1; +__END__ + + +=head1 NAME + +Module::Build::Platform::os2 - Builder class for OS/2 platform + +=head1 DESCRIPTION + +This module provides some routines very specific to the OS/2 +platform. + +Please see the L<Module::Build> for the general docs. + +=head1 AUTHOR + +Ken Williams <kwilliams@cpan.org> + +=head1 SEE ALSO + +perl(1), Module::Build(3), ExtUtils::MakeMaker(3) + +=cut diff --git a/lib/Module/Build/PodParser.pm b/lib/Module/Build/PodParser.pm new file mode 100644 index 0000000..277ee59 --- /dev/null +++ b/lib/Module/Build/PodParser.pm @@ -0,0 +1,63 @@ +package Module::Build::PodParser; + +use strict; +use warnings; +our $VERSION = '0.4214'; +$VERSION = eval $VERSION; + +sub new { + # Perl is so fun. + my $package = shift; + + my $self; + $self = bless {have_pod_parser => 0, @_}, $package; + + unless ($self->{fh}) { + die "No 'file' or 'fh' parameter given" unless $self->{file}; + open($self->{fh}, '<', $self->{file}) or die "Couldn't open $self->{file}: $!"; + } + + return $self; +} + +sub parse_from_filehandle { + my ($self, $fh) = @_; + + local $_; + while (<$fh>) { + next unless /^=(?!cut)/ .. /^=cut/; # in POD + # Accept Name - abstract or C<Name> - abstract + last if ($self->{abstract}) = /^ (?: [a-z_0-9:]+ | [BCIF] < [a-z_0-9:]+ > ) \s+ - \s+ (.*\S) /ix; + } + + my @author; + while (<$fh>) { + next unless /^=head1\s+AUTHORS?/i ... /^=/; + next if /^=/; + push @author, $_ if /\@/; + } + return unless @author; + s/^\s+|\s+$//g foreach @author; + + $self->{author} = \@author; + + return; +} + +sub get_abstract { + my $self = shift; + return $self->{abstract} if defined $self->{abstract}; + + $self->parse_from_filehandle($self->{fh}); + + return $self->{abstract}; +} + +sub get_author { + my $self = shift; + return $self->{author} if defined $self->{author}; + + $self->parse_from_filehandle($self->{fh}); + + return $self->{author} || []; +} |