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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
%% -------------------------------------------------------------------
%%
%% rebar: Erlang Build Tools
%%
%% Copyright (c) 2009 Dave Smith (dizzyd@dizzyd.com)
%%
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%%
%% The above copyright notice and this permission notice shall be included in
%% all copies or substantial portions of the Software.
%%
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%% THE SOFTWARE.
%% -------------------------------------------------------------------
-module(rebar_base_compiler).
-include("rebar.hrl").
-export([run/4,
run/7,
run/8,
run/5,
ok_tuple/3,
error_tuple/5]).
%% ===================================================================
%% Public API
%% ===================================================================
run(Config, FirstFiles, RestFiles, CompileFn) ->
%% Compile the first files in sequence
compile_each(FirstFiles, Config, CompileFn),
%% Spin up workers for the rest of the files
case RestFiles of
[] ->
ok;
_ ->
Self = self(),
F = fun() -> compile_worker(Self, Config, CompileFn) end,
Jobs = rebar:get_jobs(Config),
?DEBUG("Starting ~B compile worker(s)~n", [Jobs]),
Pids = [spawn_monitor(F) || _I <- lists:seq(1,Jobs)],
compile_queue(Config, Pids, RestFiles)
end.
run(Config, FirstFiles, SourceDir, SourceExt, TargetDir, TargetExt,
Compile3Fn) ->
run(Config, FirstFiles, SourceDir, SourceExt, TargetDir, TargetExt,
Compile3Fn, [check_last_mod]).
run(Config, FirstFiles, SourceDir, SourceExt, TargetDir, TargetExt,
Compile3Fn, Opts) ->
%% Find all possible source files
Recursive = proplists:get_value(recursive, Opts, true),
FoundFiles = rebar_utils:find_files_by_ext(SourceDir, SourceExt, Recursive),
%% Remove first files from found files
RestFiles = [Source || Source <- FoundFiles,
not lists:member(Source, FirstFiles)],
FirstUnits = source_to_unit_each(FirstFiles,
SourceDir, SourceExt,
TargetDir, TargetExt),
RestUnits = source_to_unit_each(RestFiles,
SourceDir, SourceExt,
TargetDir, TargetExt),
run(Config, FirstUnits, RestUnits, Compile3Fn, Opts).
%% FirstUnits and RestUnits are lists of tuples: {Source,Target}
run(Config, FirstUnits, RestUnits, Compile3Fn, Opts) ->
%% Check opts for flag indicating that compile should check lastmod
CheckLastMod = proplists:get_bool(check_last_mod, Opts),
run(Config, FirstUnits, RestUnits,
fun({S, Target}, C) ->
simple_compile_wrapper(S, Target, Compile3Fn, C, CheckLastMod)
end).
ok_tuple(Config, Source, Ws) ->
{ok, format_warnings(Config, Source, Ws)}.
error_tuple(Config, Source, Es, Ws, Opts) ->
{error, format_errors(Config, Source, Es),
format_warnings(Config, Source, Ws, Opts)}.
%% ===================================================================
%% Internal functions
%% ===================================================================
simple_compile_wrapper(Source, Target, Compile3Fn, Config, false) ->
Compile3Fn(Source, Target, Config);
simple_compile_wrapper(Source, Target, Compile3Fn, Config, true) ->
case filelib:last_modified(Target) < filelib:last_modified(Source) of
true ->
Compile3Fn(Source, Target, Config);
false ->
skipped
end.
source_to_unit_each(Files, SourceDir, SourceExt, TargetDir, TargetExt) ->
[{File, target_file(File, SourceDir, SourceExt, TargetDir, TargetExt)}
|| File <- Files].
target_file(SourceFile, SourceDir, SourceExt, TargetDir, TargetExt) ->
BaseFile = remove_common_path(SourceFile, SourceDir),
filename:join([TargetDir, filename:basename(BaseFile, SourceExt) ++ TargetExt]).
remove_common_path(Fname, Path) ->
remove_common_path1(filename:split(Fname), filename:split(Path)).
remove_common_path1([Part | RestFilename], [Part | RestPath]) ->
remove_common_path1(RestFilename, RestPath);
remove_common_path1(FilenameParts, _) ->
filename:join(FilenameParts).
compile_each([], _Config, _CompileFn) ->
ok;
compile_each([Unit | Rest], Config, CompileFn) ->
case CompileFn(Unit, Config) of
ok ->
?CONSOLE("Compiled ~s\n", [unit_source(Unit)]);
{ok, Warnings} ->
report(Warnings),
?CONSOLE("Compiled ~s\n", [unit_source(Unit)]);
skipped ->
?INFO("Skipped ~s\n", [unit_source(Unit)]);
Error ->
maybe_report(Error),
?CONSOLE("Compiling ~s failed:\n",
[maybe_absname(Config, unit_source(Unit))]),
?DEBUG("Compilation failed: ~p\n", [Error]),
case rebar_config:get_xconf(Config, keep_going, false) of
false ->
?FAIL;
true ->
?WARN("Continuing after build error\n", [])
end
end,
compile_each(Rest, Config, CompileFn).
unit_source({Source, _Target}) ->
Source;
unit_source(Source) ->
Source.
compile_queue(_Config, [], []) ->
ok;
compile_queue(Config, Pids, Targets) ->
receive
{next, Worker} ->
case Targets of
[] ->
Worker ! empty,
compile_queue(Config, Pids, Targets);
[Source | Rest] ->
Worker ! {compile, Source},
compile_queue(Config, Pids, Rest)
end;
{fail, {_, {source, Unit}}=Error} ->
maybe_report(Error),
?CONSOLE("Compiling ~s failed:\n",
[maybe_absname(Config, unit_source(Unit))]),
?DEBUG("Worker compilation failed: ~p\n", [Error]),
case rebar_config:get_xconf(Config, keep_going, false) of
false ->
?FAIL;
true ->
?WARN("Continuing after build error\n", []),
compile_queue(Config, Pids, Targets)
end;
{compiled, Unit, Warnings} ->
report(Warnings),
?CONSOLE("Compiled ~s\n", [unit_source(Unit)]),
compile_queue(Config, Pids, Targets);
{compiled, Unit} ->
?CONSOLE("Compiled ~s\n", [unit_source(Unit)]),
compile_queue(Config, Pids, Targets);
{skipped, Unit} ->
?INFO("Skipped ~s\n", [unit_source(Unit)]),
compile_queue(Config, Pids, Targets);
{'DOWN', Mref, _, Pid, normal} ->
?DEBUG("Worker exited cleanly\n", []),
Pids2 = lists:delete({Pid, Mref}, Pids),
compile_queue(Config, Pids2, Targets);
{'DOWN', _Mref, _, _Pid, Info} ->
?DEBUG("Worker failed: ~p\n", [Info]),
?FAIL
end.
compile_worker(QueuePid, Config, CompileFn) ->
QueuePid ! {next, self()},
receive
{compile, Source} ->
case catch(CompileFn(Source, Config)) of
{ok, Ws} ->
QueuePid ! {compiled, Source, Ws},
compile_worker(QueuePid, Config, CompileFn);
ok ->
QueuePid ! {compiled, Source},
compile_worker(QueuePid, Config, CompileFn);
skipped ->
QueuePid ! {skipped, Source},
compile_worker(QueuePid, Config, CompileFn);
Error ->
QueuePid ! {fail, {{error, Error}, {source, Source}}},
case rebar_config:get_xconf(Config, keep_going, false) of
false ->
ok;
true ->
compile_worker(QueuePid, Config, CompileFn)
end
end;
empty ->
ok
end.
format_errors(Config, Source, Errors) ->
format_errors(Config, Source, "", Errors).
format_warnings(Config, Source, Warnings) ->
format_warnings(Config, Source, Warnings, []).
format_warnings(Config, Source, Warnings, Opts) ->
Prefix = case lists:member(warnings_as_errors, Opts) of
true -> "";
false -> "Warning: "
end,
format_errors(Config, Source, Prefix, Warnings).
maybe_report({{error, {error, _Es, _Ws}=ErrorsAndWarnings}, {source, _}}) ->
maybe_report(ErrorsAndWarnings);
maybe_report([{error, E}, {source, S}]) ->
report(["unexpected error compiling " ++ S, io_lib:fwrite("~n~p~n", [E])]);
maybe_report({error, Es, Ws}) ->
report(Es),
report(Ws);
maybe_report(_) ->
ok.
report(Messages) ->
lists:foreach(fun(Msg) -> io:format("~s", [Msg]) end, Messages).
format_errors(Config, _MainSource, Extra, Errors) ->
[begin
AbsSource = maybe_absname(Config, Source),
[format_error(AbsSource, Extra, Desc) || Desc <- Descs]
end
|| {Source, Descs} <- Errors].
format_error(AbsSource, Extra, {{Line, Column}, Mod, Desc}) ->
ErrorDesc = Mod:format_error(Desc),
?FMT("~s:~w:~w: ~s~s~n", [AbsSource, Line, Column, Extra, ErrorDesc]);
format_error(AbsSource, Extra, {Line, Mod, Desc}) ->
ErrorDesc = Mod:format_error(Desc),
?FMT("~s:~w: ~s~s~n", [AbsSource, Line, Extra, ErrorDesc]);
format_error(AbsSource, Extra, {Mod, Desc}) ->
ErrorDesc = Mod:format_error(Desc),
?FMT("~s: ~s~s~n", [AbsSource, Extra, ErrorDesc]).
maybe_absname(Config, Filename) ->
case rebar_utils:processing_base_dir(Config) of
true ->
Filename;
false ->
filename:absname(Filename)
end.
|
