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Since this test later does a git add -A, we should clean out unnecessary
untracked files as part of our cleanup.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is another challenging testcase trying to exercise the virtual merge
base creation in the rename/rename(1to2) code. A testcase is added that
we should be able to merge cleanly, but which requires a virtual merge
base to be created that is aware of rename/rename(1to2)/add-source
conflicts and can handle those.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This test is mostly just designed for testing optimality of the virtual
merge base in the event of a rename/rename(1to2) conflict. The current
choice for resolving this in git seems somewhat confusing and suboptimal.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add testcases that cover three failures with current git merge, all
involving renaming one file on both sides of history:
Case 1:
If a single file is renamed to two different filenames on different sides
of history, there should be a conflict. Adding a new file on one of those
sides of history whose name happens to match the rename source should not
cause the merge to suddenly succeed.
Case 2:
If a single file is renamed on both sides of history but renamed
identically, there should not be a conflict. This works fine. However,
if one of those sides also added a new file that happened to match the
rename source, then that file should be left alone. Currently, the
rename/rename conflict handling causes that new file to become untracked.
Case 3:
If a single file is renamed to two different filenames on different sides
of history, there should be a conflict. This works currently. However,
if those renames also involve rename/add conflicts (i.e. there are new
files on one side of history that match the destination of the rename of
the other side of history), then the resulting conflict should be recorded
in the index, showing that there were multiple files with a given filename.
Currently, git silently discards one of file versions.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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rename/rename conflicts, both with one file being renamed to two different
files and with two files being renamed to the same file, should leave the
index and the working copy in a sane state with appropriate conflict
recording, auxiliary files, etc. Git seems to handle one of the two cases
alright, but has some problems with the two files being renamed to one
case. Add tests for both cases.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add testcases that cover a variety of merge issues with files being
renamed and modified on different sides of history, when there are
directories possibly conflicting with the rename location.
Case 1:
On one side of history, a file is modified and a new directory is added.
On the other side of history, the file is modified in a non-conflicting
way but is renamed to the location of the new directory.
Case 2:
[Same as case 1, but there is also a content conflict. In detail:]
On one side of history, a file is modified and a new directory is added.
On the other side of history, the file is modified in a conflicting way
and it is renamed to the location of the new directory.
Case 3:
[Similar to case 1, but the "conflicting" directory is the directory
where the file original resided. In detail:]
On one side of history, a file is modified. On the other side of history,
the file is modified in a non-conflicting way, but the directory it was
under is removed and the file is renamed to the location of the directory
it used to reside in (i.e. 'sub/file' gets renamed to 'sub'). This is
flagged as a directory/rename conflict, but should be able to be resolved
since the directory can be cleanly removed by the merge.
One branch renames a file and makes a file where the directory the renamed
file used to be in, and the other branch updates the file in
place. Merging them should resolve it cleanly as long as the content level
change on the branches do not overlap and rename is detected, or should
leave conflict without losing information.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are cases where history should merge cleanly, and which current git
does merge cleanly despite not detecting a rename; however the merge
currently nukes files that should not be removed.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An undetected rename can cause a silent success where a conflict should
have been detected, or can cause an erroneous conflict state where the
merge should have been resolvable. Add testcases for both.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If there is a cleanly resolvable rename/modify conflict AND there is a new
file introduced on the renamed side of the merge whose name happens to
match that of the source of the rename (but is otherwise unrelated to the
rename), then git fails to cleanly resolve the merge despite the fact that
the new file should not cause any problems.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Current git will nuke an untracked file during a rename/delete conflict if
(a) there is an untracked file whose name matches the source of a rename
and (b) the merge is done in a certain direction. Add a simple testcase
demonstrating this bug.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"svn dcommit --mergeinfo" replaces the svn:mergeinfo property in an
upstream SVN repository with the given text. The svn:mergeinfo
property may contain commits originating on multiple branches,
separated by newlines.
Cause space characters in the mergeinfo to be replaced by newlines,
allowing a user to create history representing multiple branches being
merged into one.
Update the corresponding documentation and add a test for the new
functionality.
Signed-off-by: Bryan Jacobs <bjacobs@woti.com>
Acked-by: Sam Vilain <sam@vilain.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
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The matching step in commit 3235b7053c45a734c1cdf9b117bda68b7ced29c9
did not properly account for users of the "rewriteRoot"
configuration parameter.
ref: <CANWsHyfHtr0EaJtNsDK9UTcmb_AbLg-1jUA-0uWJ-nEeNosb7w@mail.gmail.com>
Suggested-by: H Krishnan <hetchkay@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
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Adds a --preserve-empty-dirs flag to the clone operation that will detect
empty directories in the remote Subversion repository and create placeholder
files in the corresponding local Git directories. This allows "empty"
directories to exist in the history of a Git repository.
Also adds the --placeholder-file flag to control the name of any placeholder
files created. Default value is ".gitignore".
Signed-off-by: Ray Chen <rchen@cs.umd.edu>
Acked-by: Eric Wong <normalperson@yhbt.net>
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| | |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|/ / / / / / / / / / / / / / / / / / /
| |/| | | | | | | | | | | | | | | | | | | | | | | | | | | / / / / / / /
| |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|/ / / / / / /
|/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
* maint:
Documentation: clarify effects of -- <path> arguments
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| | | |_|_|_|_|_|_|/ / / / / / / / / / / / / / / / / / / / / / / / / /
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'git log -- <path>' does not "show commits that affect the specified
paths" in a literal sense unless --full-history is given (for example,
a file that only existed on a side branch will turn up no commits at
all!).
Reword it to specify the actual intent of the filtering, and point to
the "History Simplification" section.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* nd/decorate-grafts:
log: Do not decorate replacements with --no-replace-objects
log: decorate "replaced" on to replaced commits
log: decorate grafted commits with "grafted"
Move write_shallow_commits to fetch-pack.c
Add for_each_commit_graft() to iterate all grafts
decoration: do not mis-decorate refs with same prefix
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5267d29 (log: decorate "replaced" on to replaced commits, 2011-08-19)
introduced textual decorations for replaced commits, based on the
detection of refs/replace.
Make it so that additionally the use of --no-replace-objects is
detected: I.e. replaced commits are only decorated as replaced when they
are actually replaced.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Old code also decorates "new" commits with "refs/replace/SHA1". This
is now gone, but I guess no one will miss it.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In shallow repositories, this may help detect whether a branch ends,
or it is deeper than current depth.
It also show graft points that extend a branch.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function produces network traffic and should be in fetch-pack. It
has been in commit.c because it needs to iterate (private) graft
list. It can now do so using for_each_commit_graft().
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We definitely do not want to decorate refs/headsandtails the same as
refs/heads/*, for example.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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| | |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|/ / /
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* nd/maint-clone-gitdir:
clone: allow to clone from .git file
read_gitfile_gently(): rename misnamed function to read_gitfile()
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function was not gentle at all to the callers and died without giving
them a chance to deal with possible errors. Rename it to read_gitfile(),
and update all the callers.
As no existing caller needs a true "gently" variant, we do not bother
adding one at this point.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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| | |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|/ / / /
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* ci/forbid-unwanted-current-branch-update:
Show interpreted branch name in error messages
Prevent force-updating of the current branch
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Change the error message when doing: "git branch @{-1}",
"git checkout -b @{-1}", or "git branch -m foo @{-1}"
* was: A branch named '@{-1}' already exists.
* now: A branch named 'bar' already exists.
Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git branch -M <foo> <current-branch>" allows updating the current branch
which HEAD points, without the necessary house-keeping that git reset
normally does to make this operation sensible. It also leaves the reflog
in a confusing state (you would be warned when trying to read it).
"git checkout -B <current branch> <foo>" is also partly vulnerable to this
bug; due to inconsistent pre-flight checks it would perform half of its
task and then abort just before rewriting the branch. Again this
manifested itself as the index file getting out-of-sync with HEAD.
"git branch -f" already guarded against this problem, and aborts with
a fatal error.
Update "git branch -M", "git checkout -B" and "git branch -f" to share the
same check before allowing a branch to be created. These prevent you from
updating the current branch.
We considered suggesting the use of "git reset" in the failure message
but concluded that it was not possible to discern what the user was
actually trying to do.
Signed-off-by: Conrad Irwin <conrad.irwin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/pager-with-external-command:
support pager.* for external commands
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Without this patch, any commands that are not builtin would
not respect pager.* config. For example:
git config pager.stash false
git stash list
would still use a pager. With this patch, pager.stash now
has an effect. If it is not specified, we will still fall
back to pager.log when we invoke "log" from "stash list".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/maint-clone-alternates:
clone: clone from a repository with relative alternates
clone: allow more than one --reference
Conflicts:
builtin/clone.c
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Cloning from a local repository blindly copies or hardlinks all the files
under objects/ hierarchy. This results in two issues:
- If the repository cloned has an "objects/info/alternates" file, and the
command line of clone specifies --reference, the ones specified on the
command line get overwritten by the copy from the original repository.
- An entry in a "objects/info/alternates" file can specify the object
stores it borrows objects from as a path relative to the "objects/"
directory. When cloning a repository with such an alternates file, if
the new repository is not sitting next to the original repository, such
relative paths needs to be adjusted so that they can be used in the new
repository.
This updates add_to_alternates_file() to take the path to the alternate
object store, including the "/objects" part at the end (earlier, it was
taking the path to $GIT_DIR and was adding "/objects" itself), as it is
technically possible to specify in objects/info/alternates file the path
of a directory whose name does not end with "/objects".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Also add a test to expose a long-standing bug that is triggered when
cloning with --reference option from a local repository that has its own
alternates. The alternate object stores specified on the command line
are lost, and only alternates copied from the source repository remain.
The bug will be fixed in the next patch.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/color-and-pager:
want_color: automatically fallback to color.ui
diff: don't load color config in plumbing
config: refactor get_colorbool function
color: delay auto-color decision until point of use
git_config_colorbool: refactor stdout_is_tty handling
diff: refactor COLOR_DIFF from a flag into an int
setup_pager: set GIT_PAGER_IN_USE
t7006: use test_config helpers
test-lib: add helper functions for config
t7006: modernize calls to unset
Conflicts:
builtin/commit.c
parse-options.c
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All of the "do we want color" flags default to -1 to
indicate that we don't have any color configured. This value
is handled in one of two ways:
1. In porcelain, we check early on whether the value is
still -1 after reading the config, and set it to the
value of color.ui (which defaults to 0).
2. In plumbing, it stays untouched as -1, and want_color
defaults it to off.
This works fine, but means that every porcelain has to check
and reassign its color flag. Now that want_color gives us a
place to put this check in a single spot, we can do that,
simplifying the calling code.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The diff config callback is split into two functions: one
which loads "ui" config, and one which loads "basic" config.
The former chains to the latter, as the diff UI config is a
superset of the plumbing config.
The color.diff variable is only loaded in the UI config.
However, the basic config actually chains to
git_color_default_config, which loads color.ui. This doesn't
actually cause any bugs, because the plumbing diff code does
not actually look at the value of color.ui.
However, it is somewhat nonsensical, and it makes it
difficult to refactor the color code. It probably came about
because there is no git_color_config to load only color
config, but rather just git_color_default_config, which
loads color config and chains to git_default_config.
This patch splits out the color-specific portion of
git_color_default_config so that the diff UI config can call
it directly. This is perhaps better explained by the
chaining of callbacks. Before we had:
git_diff_ui_config
-> git_diff_basic_config
-> git_color_default_config
-> git_default_config
Now we have:
git_diff_ui_config
-> git_color_config
-> git_diff_basic_config
-> git_default_config
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For "git config --get-colorbool color.foo", we use a custom
callback that looks not only for the key that the user gave
us, but also for "diff.color" (for backwards compatibility)
and "color.ui" (as a fallback).
For the former, we use a custom variable to store the
diff.color value. For the latter, though, we store it in the
main "git_use_color_default" variable, turning on color.ui
for any other parts of git that respect this value.
In practice, this doesn't cause any bugs, because git-config
runs without caring about git_use_color_default, and then
exits. But it crosses module boundaries in an unusual and
confusing way, and it makes refactoring color handling
harder than it needs to be.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we read a color value either from a config file or from
the command line, we use git_config_colorbool to convert it
from the tristate always/never/auto into a single yes/no
boolean value.
This has some timing implications with respect to starting
a pager.
If we start (or decide not to start) the pager before
checking the colorbool, everything is fine. Either isatty(1)
will give us the right information, or we will properly
check for pager_in_use().
However, if we decide to start a pager after we have checked
the colorbool, things are not so simple. If stdout is a tty,
then we will have already decided to use color. However, the
user may also have configured color.pager not to use color
with the pager. In this case, we need to actually turn off
color. Unfortunately, the pager code has no idea which color
variables were turned on (and there are many of them
throughout the code, and they may even have been manipulated
after the colorbool selection by something like "--color" on
the command line).
This bug can be seen any time a pager is started after
config and command line options are checked. This has
affected "git diff" since 89d07f7 (diff: don't run pager if
user asked for a diff style exit code, 2007-08-12). It has
also affect the log family since 1fda91b (Fix 'git log'
early pager startup error case, 2010-08-24).
This patch splits the notion of parsing a colorbool and
actually checking the configuration. The "use_color"
variables now have an additional possible value,
GIT_COLOR_AUTO. Users of the variable should use the new
"want_color()" wrapper, which will lazily determine and
cache the auto-color decision.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Usually this function figures out for itself whether stdout
is a tty. However, it has an extra parameter just to allow
git-config to override the auto-detection for its
--get-colorbool option.
Instead of an extra parameter, let's just use a global
variable. This makes calling easier in the common case, and
will make refactoring the colorbool code much simpler.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This lets us store more than just a bit flag for whether we
want color; we can also store whether we want automatic
colors. This can be useful for making the automatic-color
decision closer to the point of use.
This mostly just involves replacing DIFF_OPT_* calls with
manipulations of the flag. The biggest exception is that
calls to DIFF_OPT_TST must check for "o->use_color > 0",
which lets an "unknown" value (i.e., the default) stay at
"no color". In the previous code, a value of "-1" was not
propagated at all.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have always set a global "spawned_pager" variable when we
start the pager. This lets us make the auto-color decision
later in the program as as "we are outputting to a terminal,
or to a pager which can handle colors".
Commit 6e9af86 added support for the GIT_PAGER_IN_USE
environment variable. An external program calling git (e.g.,
git-svn) could set this variable to indicate that it had
already started the pager, and that the decision about
auto-coloring should take that into account.
However, 6e9af86 failed to do the reverse, which is to tell
external programs when git itself has started the pager.
Thus a git command implemented as an external script that
has the pager turned on (e.g., "git -p stash show") would
not realize it was going to a pager, and would suppress
colors.
This patch remedies that; we always set GIT_PAGER_IN_USE
when we start the pager, and the value is respected by both
this program and any spawned children.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In some cases, this is just making the test script a little
shorter and easier to read. However, there are several
places where we didn't take proper precautions against
polluting downstream tests with our config; this fixes them,
too.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are a few common tasks when working with configuration
variables in tests; this patch aims to make them a little
easier to write and less error-prone.
When setting a variable, you should typically make sure to
clean it up after the test is finished, so as not to pollute
other tests. Like:
test_when_finished 'git config --unset foo.bar' &&
git config foo.bar baz
This patch lets you just write:
test_config foo.bar baz
When clearing a variable that does not exist, git-config
will report a specific non-zero error code. Meaning that
tests which call "git config --unset" often either rely on
the prior tests having actually set it, or must use
test_might_fail. With this patch, the previous:
test_might_fail git config --unset foo.bar
becomes:
test_unconfig foo.bar
Not only is this easier to type, but it is more robust; it
will correctly detect errors from git-config besides "key
was not set".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These tests break &&-chaining to deal with broken "unset"
implementations. Instead, they should just use sane_unset.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mh/attr:
Unroll the loop over passes
Change while loop into for loop
Determine the start of the states outside of the pass loop
Change parse_attr() to take a pointer to struct attr_state
Increment num_attr in parse_attr_line(), not parse_attr()
Document struct match_attr
Add a file comment
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The passes no longer share much code, and the unrolled code is easier
to understand.
Use a new index variable instead of num_attr for the second loop, as
we are no longer counting attributes but rather indexing through them.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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