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Jeff King 046e4c1c09 Makefile: exclude contrib from FIND_SOURCE_FILES
When you're working on the git project, you're unlikely to
care about random bits in contrib/ (e.g., you would not want
to jump to the copy of xmalloc in the wincred credential
helper). Nobody has really complained because there are
relatively few C files in contrib.

Now that we're matching shell scripts, too, we get quite a
few more hits, especially in the obsolete contrib/examples
directory. Looking for usage() should turn up the one in
git-sh-setup, not in some long-dead version of git-clone.

Let's just exclude all of contrib. Any specific projects
there which are big enough to want tags can generate them
separately.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:54:49 -08:00
Jeff King 8fa2043293 Makefile: match shell scripts in FIND_SOURCE_FILES
We feed FIND_SOURCE_FILES to ctags to help developers
navigate to particular functions, but we only feed C source
code. The same feature can be helpful when working with
shell scripts (especially the test suite). Modern versions
of ctags know how to parse shell scripts; we just need to
feed the filenames to it.

This patch specifically avoids including the individual test
scripts themselves. Those are unlikely to be of interest,
and there are a lot of them to process. It does pick up
test-lib.sh and test-lib-functions.sh.

Note that our negative pathspec already excludes the
individual scripts for the ls-files case, but we need to
loosen the `find` rule to match it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:54:49 -08:00
Jeff King e6fc85b11f Makefile: exclude test cruft from FIND_SOURCE_FILES
The test directory may contain three types of files that
match our patterns:

  1. Helper programs in t/helper.

  2. Sample data files (e.g., t/t4051/hello.c).

  3. Untracked cruft in trash directories and t/perf/build.

We want to match (1), but not the other two, as they just
clutter up the list.

For the ls-files method, we can drop (2) with a negative
pathspec. We do not have to care about (3), since ls-files
will not list untracked files.

For `find`, we can match both cases with `-prune` patterns.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:54:49 -08:00
Jeff King e951ebca91 Makefile: reformat FIND_SOURCE_FILES
As we add to this in future commits, the formatting is going
to make it harder and harder to read. Let's write it more as
we would in a shell script, putting each logical block on
its own line.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:54:49 -08:00
Beat Bolli 9e6e9aefdf unicode_width.h: update the width tables to Unicode 9.0
Rerunning update-unicode.sh that we fixed in the previous commits
produces these new tables.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:48:07 -08:00
Beat Bolli 3fe5799144 update_unicode.sh: remove the plane filter
The uniset upstream has accepted my patches that eliminate the Unicode
plane offsets from the output in '--32' mode.

Remove the corresponding filter in update_unicode.sh.

This also fixes the issue that the plane offsets were not removed from
the second uniset call.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:48:07 -08:00
Beat Bolli fef54f3162 update_unicode.sh: automatically download newer definition files
Checking just for the unicode data files' existence is not sufficient;
we should also download them if a newer version exists on the Unicode
consortium's servers. Option -N of wget does this nicely for us.

Reviewed-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:48:00 -08:00
Beat Bolli 3f0a386309 update_unicode.sh: pin the uniset repo to a known good commit
The uniset upstream has added more commits that for example change the
hexadecimal output in '--32' mode to decimal. Let's pin the repo to a
commit that still outputs the width tables in the format we want.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-13 16:12:48 -08:00
Beat Bolli b79e28e370 update_unicode.sh: remove an unnecessary subshell level
After the move into contrib/update-unicode, we no longer create the
unicode directory to have a clean working folder. Instead, the directory
of the script is used. This means that the subshell can be removed.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-13 16:12:47 -08:00
Beat Bolli f3eb54920e update_unicode.sh: move it into contrib/update-unicode
As it's used only by a tiny minority of the Git developer population,
this script does not belong into the main Git source directory.

Move it into contrib/ and adjust the paths to account for the new
location.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-13 16:12:47 -08:00
Luke Diamand 378f7be1e7 git-p4: support git worktrees
git-p4 would attempt to find the git directory using
its own specific code, which did not know about git
worktrees.

Rework it to use "git rev-parse --git-dir" instead.

Add test cases for worktree usage and specifying
git directory via --git-dir and $GIT_DIR.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-13 16:04:53 -08:00
Junio C Hamano de2efebf7c Early fixes for 2.11.x series
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-13 14:13:17 -08:00
Junio C Hamano ad9d7346b3 Merge branch 'ew/svn-fixes'
* ew/svn-fixes:
  git-svn: document useLogAuthor and addAuthorFrom config keys
  git-svn: allow "0" in SVN path components
2016-12-13 14:09:27 -08:00
Junio C Hamano c04790a93a Merge branch 'js/mingw-isatty'
We often decide if a session is interactive by checking if the
standard I/O streams are connected to a TTY, but isatty() emulation
on Windows incorrectly returned true if it is used on NUL (i.e. an
equivalent to /dev/null). This has been fixed.

* js/mingw-isatty:
  mingw: intercept isatty() to handle /dev/null as Git expects it
2016-12-13 14:09:27 -08:00
Johannes Sixt eaa76de0df t5547-push-quarantine: run the path separator test on Windows, too
To perform the test case on Windows in a way that corresponds to the
POSIX version, inject the semicolon in a directory name.

Typically, an absolute POSIX style path, such as the one in $PWD, is
translated into a Windows style path by bash when it invokes git.exe.
However, the presence of the semicolon suppresses this translation;
but the untranslated POSIX style path is useless for git.exe.
Therefore, instead of $PWD pass the Windows style path that $(pwd)
produces.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-13 11:15:10 -08:00
Stefan Beller 9e189f1a5c t3600: slightly modernize style
Remove the space between redirection and file name.
Also remove unnecessary invocations of subshells, such as

	(cd submod &&
		echo X >untracked
	) &&

as there is no point of having the shell for functional purposes.
In case of a single Git command use the `-C` option to let Git cd into
the directory.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 23:11:57 -08:00
Stefan Beller f6f8586140 submodule: add absorb-git-dir function
When a submodule has its git dir inside the working dir, the submodule
support for checkout that we plan to add in a later patch will fail.

Add functionality to migrate the git directory to be absorbed
into the superprojects git directory.

The newly added code in this patch is structured such that other areas of
Git can also make use of it. The code in the submodule--helper is a mere
wrapper and option parser for the function
`absorb_git_dir_into_superproject`, that takes care of embedding the
submodules git directory into the superprojects git dir. That function
makes use of the more abstract function for this use case
`relocate_gitdir`, which can be used by e.g. the worktree code eventually
to move around a git directory.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 15:15:07 -08:00
Stefan Beller 47e83eb3b7 move connect_work_tree_and_git_dir to dir.h
That function was primarily used by submodule code, but the function
itself is not inherently about submodules. In the next patch we'll
introduce relocate_git_dir, which can be used by worktrees as well,
so find a neutral middle ground in dir.h.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 15:15:07 -08:00
Stefan Beller 1a248cf21d worktree: check if a submodule uses worktrees
In a later patch we want to move around the the git directory of
a submodule. Both submodules as well as worktrees are involved in
placing git directories at unusual places, so their functionality
may collide. To react appropriately to situations where worktrees
in submodules are in use, offer a new function to query the
a submodule if it uses the worktree feature.

An earlier approach:
  "Implement submodule_get_worktrees and just count them", however:
  This can be done cheaply (both in new code to write as well as run time)
  by obtaining the list of worktrees based off that submodules git
  directory. However as we have loaded the variables for the current
  repository, the values in the submodule worktree
  can be wrong, e.g.
  * core.ignorecase may differ between these two repositories
  * the ref resolution is broken (refs/heads/branch in the submodule
    resolves to the sha1 value of the `branch` in the current repository
    that may not exist or have another sha1)

The implementation here is just checking for any files in
$GIT_COMMON_DIR/worktrees for the submodule, which ought to be sufficient
if the submodule is using the current repository format, which we also
check.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 15:15:07 -08:00
Jeff King aae2ae4f74 tmp-objdir: quote paths we add to alternates
Commit 722ff7f87 (receive-pack: quarantine objects until
pre-receive accepts, 2016-10-03) regressed pushes to
repositories with colon (or semi-colon in Windows in them)
because it adds the repository's main object directory to
GIT_ALTERNATE_OBJECT_DIRECTORIES. The receiver interprets
the colon as a delimiter, not as part of the path, and
index-pack is unable to find objects which it needs to
resolve deltas.

The previous commit introduced a quoting mechanism for the
alternates list; let's use it here to cover this case. We'll
avoid quoting when we can, though. This alternate setup is
also used when calling hooks, so it's possible that the user
may call older git implementations which don't understand
the quoting mechanism. By quoting only when necessary, this
setup will continue to work unless the user _also_ has a
repository whose path contains the delimiter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 15:10:46 -08:00
Jeff King cf3c635210 alternates: accept double-quoted paths
We read lists of alternates from objects/info/alternates
files (delimited by newline), as well as from the
GIT_ALTERNATE_OBJECT_DIRECTORIES environment variable
(delimited by colon or semi-colon, depending on the
platform).

There's no mechanism for quoting the delimiters, so it's
impossible to specify an alternate path that contains a
colon in the environment, or one that contains a newline in
a file. We've lived with that restriction for ages because
both alternates and filenames with colons are relatively
rare, and it's only a problem when the two meet. But since
722ff7f87 (receive-pack: quarantine objects until
pre-receive accepts, 2016-10-03), which builds on the
alternates system, every push causes the receiver to set
GIT_ALTERNATE_OBJECT_DIRECTORIES internally.

It would be convenient to have some way to quote the
delimiter so that we can represent arbitrary paths.

The simplest thing would be an escape character before a
quoted delimiter (e.g., "\:" as a literal colon). But that
creates a backwards compatibility problem: any path which
uses that escape character is now broken, and we've just
shifted the problem. We could choose an unlikely escape
character (e.g., something from the non-printable ASCII
range), but that's awkward to use.

Instead, let's treat names as unquoted unless they begin
with a double-quote, in which case they are interpreted via
our usual C-stylke quoting rules. This also breaks
backwards-compatibility, but in a smaller way: it only
matters if your file has a double-quote as the very _first_
character in the path (whereas an escape character is a
problem anywhere in the path).  It's also consistent with
many other parts of git, which accept either a bare pathname
or a double-quoted one, and the sender can choose to quote
or not as required.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 15:10:43 -08:00
Junio C Hamano 9b519609a6 Merge branch 'jk/alt-odb-cleanup' into jk/quote-env-path-list-component
* jk/alt-odb-cleanup:
  alternates: re-allow relative paths from environment
2016-12-12 15:09:57 -08:00
Luis Ressel e2c20be57c date-formats.txt: Typo fix
Last time I checked, I was living in the UTC+01:00 time zone. UTC+02:00
would be Central European _Summer_ Time.

Signed-off-by: Luis Ressel <aranea@aixah.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 11:09:51 -08:00
Eric Wong ea9a93dcc2 git-svn: document useLogAuthor and addAuthorFrom config keys
We've always supported these config keys in git-svn,
so document them so users won't have to respecify them
on every invocation.

Reported-by: Juergen Kosel <juergen.kosel@gmx.de>
Signed-off-by: Eric Wong <e@80x24.org>
2016-12-12 10:49:50 -08:00
Eric Wong a0f5a0c828 git-svn: allow "0" in SVN path components
Blindly checking a path component for falsiness is unwise, as
"0" is false to Perl, but a valid pathname component for SVN
(or any filesystem).

Found via random code reading.

Signed-off-by: Eric Wong <e@80x24.org>
2016-12-12 10:49:50 -08:00
Vitaly "_Vi" Shukela bf03b79047 submodule--helper: set alternateLocation for cloned submodules
In 31224cbdc7 (clone: recursive and reference option triggers
submodule alternates, 2016-08-17) a mechanism was added to
have submodules referenced.  It did not address _nested_
submodules, however.

This patch makes all not just the root repository, but also
all submodules (recursively) have submodule.alternateLocation
and submodule.alternateErrorStrategy configured, making Git
search for possible alternates for nested submodules as well.

As submodule's alternate target does not end in .git/objects
(rather .git/modules/qqqqqq/objects), this alternate target
path restriction for in add_possible_reference_from_superproject
relates from "*.git/objects" to just */objects".

New tests have been added to t7408-submodule-reference.

Signed-off-by: Vitaly _Vi Shukela <vi0oss@gmail.com>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12 09:56:52 -08:00
David Aguilar 6cf5f6cef7 mergetools: fix xxdiff hotkeys
xxdiff was using a mix of "Ctrl-<key>" and "Ctrl+<key>" hotkeys.
The dashed "-" form is not accepted by newer xxdiff versions.
Use the plus "+" form only.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 16:20:32 -08:00
David Aguilar ce6926974e difftool: rename variables for consistency
Always call the list of files @files.
Always call the worktree $worktree.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 16:18:59 -08:00
David Aguilar f242a03d73 difftool: chdir as early as possible
Make difftool chdir to the top-level of the repository as soon as it can
so that we can simplify how paths are handled.  Replace construction of
absolute paths via string concatenation with relative paths wherever
possible.  The bulk of the code no longer needs to use absolute paths.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 16:18:54 -08:00
David Aguilar e6e3e2a67c difftool: sanitize $workdir as early as possible
The double-slash fixup on the $workdir variable was being
performed just-in-time to avoid double-slashes in symlink
targets, but the rest of the code was silently using paths with
embedded "//" in them.

A recent user-reported error message contained double-slashes.
Eliminate the issue by sanitizing inputs as soon as they arrive.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 16:18:53 -08:00
David Aguilar 86defcbe3f difftool: fix dir-diff index creation when in a subdirectory
9ec26e7977 (difftool: fix argument handling in subdirs, 2016-07-18)
corrected how path arguments are handled in a subdirectory, but
it introduced a regression in how entries outside of the
subdirectory are handled by dir-diff.

When preparing the right-side of the diff we only include the
changed paths in the temporary area.

The left side of the diff is constructed from a temporary
index that is built from the same set of changed files, but it
was being constructed from within the subdirectory.  This is a
problem because the indexed paths are toplevel-relative, and
thus they were not getting added to the index.

Teach difftool to chdir to the toplevel of the repository before
preparing its temporary indexes.  This ensures that all of the
toplevel-relative paths are valid.

Add test cases to more thoroughly exercise this scenario.

Reported-by: Frank Becker <fb@mooflu.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 16:18:31 -08:00
Johannes Schindelin cbb3f3c9b1 mingw: intercept isatty() to handle /dev/null as Git expects it
When Git's source code calls isatty(), it really asks whether the
respective file descriptor is connected to an interactive terminal.

Windows' _isatty() function, however, determines whether the file
descriptor is associated with a character device. And NUL, Windows'
equivalent of /dev/null, is a character device.

Which means that for years, Git mistakenly detected an associated
interactive terminal when being run through the test suite, which
almost always redirects stdin, stdout and stderr to /dev/null.

This bug only became obvious, and painfully so, when the new
bisect--helper entered the `pu` branch and made the automatic build & test
time out because t6030 was waiting for an answer.

For details, see

	https://msdn.microsoft.com/en-us/library/f4s0ddew.aspx

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 16:15:46 -08:00
Jacob Keller b1d31c8954 ref-filter: add support to display trailers as part of contents
Add %(trailers) and %(contents:trailers) to display the trailers as
interpreted by trailer_info_get. Update documentation and add a test for
the new feature.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 13:58:41 -08:00
Jacob Keller d9f31fbfe9 pretty: add %(trailers) format for displaying trailers of a commit message
Recent patches have expanded on the trailers.c code and we have the
builtin commant git-interpret-trailers which can be used to add or
modify trailer lines. However, there is no easy way to simply display
the trailers of a commit message.

Add support for %(trailers) format modifier which will use the
trailer_info_get() calls to read trailers in an identical way as git
interpret-trailers does. Use a long format option instead of a short
name so that future work can more easily unify ref-filter and pretty
formats.

Add documentation and tests for the same.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 13:58:41 -08:00
Nguyễn Thái Ngọc Duy 9512177b68 rebase: add --quit to cleanup rebase, leave everything else untouched
There are occasions when you decide to abort an in-progress rebase and
move on to do something else but you forget to do "git rebase --abort"
first. Or the rebase has been in progress for so long you forgot about
it. By the time you realize that (e.g. by starting another rebase)
it's already too late to retrace your steps. The solution is normally

    rm -r .git/<some rebase dir>

and continue with your life. But there could be two different
directories for <some rebase dir> (and it obviously requires some
knowledge of how rebase works), and the ".git" part could be much
longer if you are not at top-dir, or in a linked worktree. And
"rm -r" is very dangerous to do in .git, a mistake in there could
destroy object database or other important data.

Provide "git rebase --quit" for this use case, mimicking a precedent
that is "git cherry-pick --quit".

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-11 13:51:41 -08:00
Kristoffer Haugsbakk 47437fd3bd doc: omit needless "for"
What was intended was perhaps "... plumbing does for you" ("you" added), but
simply omitting the word "for" is more terse and gets the intended point across
just as well, if not more so.

I originally went with the approach of writing "for you", but Junio C
Hamano suggested this approach instead.

Signed-off-by: Kristoffer Haugsbakk <kristoffer.haugsbakk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 15:14:01 -08:00
Kristoffer Haugsbakk c857c3a1ce doc: make the intent of sentence clearer
By adding the word "just", which might have been accidentally omitted.

Adding the word "just" makes it clear that the point is to *not* do an
octopus merge simply because you *can* do it.  In other words, you
should have a reason for doing it beyond simply having two (seemingly)
independent commits that you need to merge into another branch, since
it's not always the best approach.

The previous sentence made it look more like it was trying to say that
you shouldn't do an octopus merge *because* you can do an octopus merge.
Although this interpretation doesn't make sense and the rest of the
paragraph makes the intended meaning clear, this adjustment should make
the intent of the sentence more immediately clear to the reader.

Signed-off-by: Kristoffer Haugsbakk <kristoffer.haugsbakk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 15:14:01 -08:00
Kristoffer Haugsbakk f383e4ed53 doc: add verb in front of command to run
Instead of using the command 'git clone' as a verb, use "run" as the
verb indicating the action of executing the command 'git clone'.

Signed-off-by: Kristoffer Haugsbakk <kristoffer.haugsbakk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 15:14:01 -08:00
Kristoffer Haugsbakk 8b9bb339cd doc: add articles (grammar)
Add definite and indefinite articles in three places where they were
missing.

- Use "the" in front of a directory name
- Use "the" in front of "style of cooperation"
- Use an indefinite article in front of "CVS background"

Signed-off-by: Kristoffer Haugsbakk <kristoffer.haugsbakk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 15:14:01 -08:00
Stefan Beller 6f94351b0a test-lib-functions.sh: teach test_commit -C <dir>
Specifically when setting up submodule tests, it comes in handy if
we can create commits in repositories that are not at the root of
the tested trash dir. Add "-C <dir>" similar to gits -C parameter
that will perform the operation in the given directory.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 14:52:57 -08:00
Stefan Beller 89c8626557 submodule helper: support super prefix
Just like main commands in Git, the submodule helper needs
access to the superproject prefix. Enable this in the git.c
but have its own fuse in the helper code by having a flag to
turn on the super prefix.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 14:52:57 -08:00
Stefan Beller 90c0011619 submodule: use absolute path for computing relative path connecting
The current caller of connect_work_tree_and_git_dir passes
an absolute path for the `git_dir` parameter. In the future patch
we will also pass in relative path for `git_dir`. Extend the functionality
of connect_work_tree_and_git_dir to take relative paths for parameters.

We could work around this in the future patch by computing the absolute
path for the git_dir in the calling site, however accepting relative
paths for either parameter makes the API for this function much harder
to misuse.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 14:52:57 -08:00
Stephan Beyer 39784cd362 sequencer: remove useless get_dir() function
This function is used only once, for the removal of the
directory. It is not used for the creation of the directory nor
anywhere else.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 14:51:16 -08:00
Stephan Beyer 1e41229d96 sequencer: make sequencer abort safer
In contrast to "git am --abort", a sequencer abort did not check
whether the current HEAD is the one that is expected. This can lead
to loss of work (when not spotted and resolved using reflog before
the garbage collector chimes in).

This behavior is now changed by mimicking "git am --abort".  The
abortion is done but HEAD is not changed when the current HEAD is
not the expected HEAD.

A new file "sequencer/abort-safety" is added to save the expected
HEAD.

The new behavior is only active when --abort is invoked on multiple
picks. The problem does not occur for the single-pick case because
it is handled differently.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 14:50:45 -08:00
Stephan Beyer aeebd98ebe t3510: test that cherry-pick --abort does not unsafely change HEAD
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 14:50:45 -08:00
Andreas Krey beb635ca9c commit: remove 'Clever' message for --only --amend
The behavior is now documented; more importantly, rewarding the user
with a "Wow, you are clever" praise afterwards is not an effective
way to advertise the feature--at that point the user already knows.

Signed-off-by: Andreas Krey <a.krey@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-09 10:52:46 -08:00
Jack Bates 43d1948b7b diff: handle --no-abbrev in no-index case
There are two different places where the --no-abbrev option is parsed,
and two different places where SHA-1s are abbreviated. We normally parse
--no-abbrev with setup_revisions(), but in the no-index case, "git diff"
calls diff_opt_parse() directly, and diff_opt_parse() didn't handle
--no-abbrev until now. (It did handle --abbrev, however.) We normally
abbreviate SHA-1s with find_unique_abbrev(), but commit 4f03666 ("diff:
handle sha1 abbreviations outside of repository, 2016-10-20) recently
introduced a special case when you run "git diff" outside of a
repository.

setup_revisions() does also call diff_opt_parse(), but not for --abbrev
or --no-abbrev, which it handles itself. setup_revisions() sets
rev_info->abbrev, and later copies that to diff_options->abbrev. It
handles --no-abbrev by setting abbrev to zero. (This change doesn't
touch that.)

Setting abbrev to zero was broken in the outside-of-a-repository special
case, which until now resulted in a truly zero-length SHA-1, rather than
taking zero to mean do not abbreviate. The only way to trigger this bug,
however, was by running "git diff --raw" without either the --abbrev or
--no-abbrev options, because 1) without --raw it doesn't respect abbrev
(which is bizarre, but has been that way forever), 2) we silently clamp
--abbrev=0 to MINIMUM_ABBREV, and 3) --no-abbrev wasn't handled until
now.

The outside-of-a-repository case is one of three no-index cases. The
other two are when one of the files you're comparing is outside of the
repository you're in, and the --no-index option.

Signed-off-by: Jack Bates <jack@nottheoilrig.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-08 14:40:30 -08:00
David Aguilar 853e10c197 difftool: fix dir-diff index creation when in a subdirectory
9ec26e7977 (difftool: fix argument handling in subdirs, 2016-07-18)
corrected how path arguments are handled in a subdirectory, but
it introduced a regression in how entries outside of the
subdirectory are handled by dir-diff.

When preparing the right-side of the diff we only include the
changed paths in the temporary area.

The left side of the diff is constructed from a temporary
index that is built from the same set of changed files, but it
was being constructed from within the subdirectory.  This is a
problem because the indexed paths are toplevel-relative, and
thus they were not getting added to the index.

Teach difftool to chdir to the toplevel of the repository before
preparing its temporary indexes.  This ensures that all of the
toplevel-relative paths are valid.

Add test cases to more thoroughly exercise this scenario.

Reported-by: Frank Becker <fb@mooflu.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-08 10:28:00 -08:00
Stephan Beyer 1868331f13 am: change safe_to_abort()'s not rewinding error into a warning
The error message tells the user that something went terribly wrong
and the --abort could not be performed. But the --abort is performed,
only without rewinding. By simply changing the error into a warning,
we indicate the user that she must not try something like
"git am --abort --force", instead she just has to check the HEAD.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-08 09:09:44 -08:00
Stephan Beyer ccd71b2f38 am: fix filename in safe_to_abort() error message
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-08 09:09:34 -08:00