Commit Graph

45367 Commits

Author SHA1 Message Date
Jeff King
965cba2e7e archive-zip: load userdiff config
Since 4aff646d17 (archive-zip: mark text files in archives,
2015-03-05), the zip archiver will look at the userdiff
driver to decide whether a file is text or binary. This
usually doesn't need to look any further than the attributes
themselves (e.g., "-diff", etc). But if the user defines a
custom driver like "diff=foo", we need to look at
"diff.foo.binary" in the config. Prior to this patch, we
didn't actually load it.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-07 18:49:30 -08:00
David Turner
1c409a705c repack: die on incremental + write-bitmap-index
The bitmap index only works for single packs, so requesting an
incremental repack with bitmap indexes makes no sense.

Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-29 13:45:37 -08:00
David Turner
bdf56de896 auto gc: don't write bitmaps for incremental repacks
When git gc --auto does an incremental repack of loose objects, we do
not expect to be able to write a bitmap; it is very likely that
objects in the new pack will have references to objects outside of the
pack.  So we shouldn't try to write a bitmap, because doing so will
likely issue a warning.

This warning was making its way into gc.log.  When the gc.log was
present, future auto gc runs would refuse to run.

Patch by Jeff King.
Bug report, test, and commit message by David Turner.

Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-29 13:45:35 -08:00
Junio C Hamano
48d5014dd4 config.abbrev: document the new default that auto-scales
We somehow forgot to update the "default is 7" in the
documentation.  Also give a way to explicitly ask the auto-scaling
by setting config.abbrev to "auto".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22 13:17:15 -08:00
Nguyễn Thái Ngọc Duy
c06fa62dfc config.c: handle lock file in error case in git_config_rename_...
We could rely on atexit() to clean up everything, but let's be
explicit when we can. And it's good anyway because the function is
called the second time in the same process, we're in trouble.

This function should not affect the successful case because after
commit_lock_file() is called, rollback_lock_file() becomes no-op,
as long as it is initialized.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22 12:31:50 -08:00
Jeff Hostetler
a9b8a09c3c mingw: replace isatty() hack
Git for Windows has carried a patch that depended on internals
of MSVC runtime, but it does not work correctly with recent MSVC
runtime. A replacement was written originally for compiling
with VC++. The patch in this message is a backport of that
replacement, and it also fixes the previous attempt to make
isatty() tell that /dev/null is *not* an interactive terminal.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Tested-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22 09:58:46 -08:00
Alan Davies
86924838e3 mingw: fix colourization on Cygwin pseudo terminals
Git only colours the output and uses pagination if isatty() returns 1.
MSYS2 and Cygwin emulate pseudo terminals via named pipes, meaning that
isatty() returns 0.

f7f90e0f4f (mingw: make isatty() recognize MSYS2's pseudo terminals
(/dev/pty*), 2016-04-27) fixed this for MSYS2 terminals, but not for
Cygwin.

The named pipes that Cygwin and MSYS2 use are very similar. MSYS2 PTY pipes
are called 'msys-*-pty*' and Cygwin uses 'cygwin-*-pty*'. This commit
modifies the existing check to allow both MSYS2 and Cygwin PTY pipes to be
identified as TTYs.

Note that pagination is still broken when running Git for Windows from
within Cygwin, as MSYS2's less.exe is spawned (and does not like to
interact with Cygwin's PTY).

This partially fixes https://github.com/git-for-windows/git/issues/267

Signed-off-by: Alan Davies <alan.n.davies@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22 09:58:29 -08:00
Johannes Schindelin
fee807c5f6 mingw: adjust is_console() to work with stdin
When determining whether a handle corresponds to a *real* Win32 Console
(as opposed to, say, a character device such as /dev/null), we use the
GetConsoleOutputBufferInfo() function as a tell-tale.

However, that does not work for *input* handles associated with a
console. Let's just use the GetConsoleMode() function for input handles,
and since it does not work on output handles fall back to the previous
method for those.

This patch prepares for using is_console() instead of my previous
misguided attempt in cbb3f3c9b1 (mingw: intercept isatty() to handle
/dev/null as Git expects it, 2016-12-11) that broke everything on
Windows.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22 09:58:20 -08:00
Johannes Sixt
5e74824fac t5615-alternate-env: double-quotes in file names do not work on Windows
Protect a recently added test case with !MINGW.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-21 14:01:19 -08:00
Mike Hommey
405d7f4af6 fast-import: properly fanout notes when tree is imported
In typical uses of fast-import, trees are inherited from a parent
commit. In that case, the tree_entry for the branch looks like:

  .versions[1].sha1 = $some_sha1
  .tree = <tree structure loaded from $some_sha1>

However, when trees are imported, rather than inherited, that is not the
case. One can import a tree with a filemodify command, replacing the
root tree object.

e.g.
  "M 040000 $some_sha1 \n"

In this case, the tree_entry for the branch looks like:

  .versions[1].sha1 = $some_sha1
  .tree = NULL

When adding new notes with the notemodify command, do_change_note_fanout
is called to get a notes count, and to do so, it loops over the
tree_entry->tree, but doesn't do anything when the tree is NULL.

In the latter case above, it means do_change_note_fanout thinks the tree
contains no notes, and new notes are added with no fanout.

Interestingly, do_change_note_fanout does check whether subdirectories
have a NULL .tree, in which case it uses load_tree(). Which means the
right behaviour happens when using the filemodify command to import
subdirectories.

This change makes do_change_note_fanount call load_tree() whenever the
tree_entry it is given has no tree loaded, making all cases handled
equally.

Signed-off-by: Mike Hommey <mh@glandium.org>
Reviewed-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20 13:53:26 -08:00
Nguyễn Thái Ngọc Duy
6e45b43fa9 config.c: rename label unlock_and_out
There are two ways to unlock a file: commit, or revert. Rename it to
commit_and_out to avoid confusion.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20 12:08:06 -08:00
Nguyễn Thái Ngọc Duy
29647d79a9 config.c: handle error case for fstat() calls
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20 12:08:06 -08:00
Kyle J. McKay
08414938a2 mailinfo.c: move side-effects outside of assert
Since 6b4b013f18 (mailinfo: handle in-body header continuations,
2016-09-20, v2.11.0) mailinfo.c has contained new code with an
assert of the form:

	assert(call_a_function(...))

The function in question, check_header, has side effects.  This
means that when NDEBUG is defined during a release build the
function call is omitted entirely, the side effects do not
take place and tests (fortunately) start failing.

Since the only time that mi->inbody_header_accum is appended to is
in check_inbody_header, and appending onto a blank
mi->inbody_header_accum always happens when is_inbody_header is
true, this guarantees a prefix that causes check_header to always
return true.

Therefore replace the assert with an if !check_header + DIE
combination to reflect this.

Helped-by: Jonathan Tan <jonathantanmy@google.com>
Helped-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20 09:30:01 -08:00
Max Kirillov
c46458e82f mingw: consider that UNICODE_STRING::Length counts bytes
UNICODE_STRING::Length field means size of buffer in bytes[1],
despite of buffer itself being array of wchar_t. Because of that
terminating zero is placed twice as far. Fix it.

[1] https://msdn.microsoft.com/en-us/library/windows/desktop/aa380518.aspx

Signed-off-by: Max Kirillov <max@max630.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20 09:04:57 -08:00
George Vanburgh
9943e5b979 git-p4: fix multi-path changelist empty commits
When importing from multiple perforce paths - we may attempt to
import a changelist that contains files from two (or more) of these
depot paths. Currently, this results in multiple git commits - one
containing the changes, and the other(s) as empty commit(s). This
behavior was introduced in commit 1f90a64891 ("git-p4: reduce number
of server queries for fetches", 2015-12-19).

Reproduction Steps:

  1. Have a git repo cloned from a perforce repo using multiple
     depot paths (e.g. //depot/foo and //depot/bar).

  2. Submit a single change to the perforce repo that makes changes
     in both //depot/foo and //depot/bar.

  3. Run "git p4 sync" to sync the change from #2.

Change is synced as multiple commits, one for each depot path that
was affected.

Using a set, instead of a list inside p4ChangesForPaths() ensures
that each changelist is unique to the returned list, and therefore
only a single commit is generated for each changelist.

Reported-by: James Farwell <jfarwell@vmware.com>
Signed-off-by: George Vanburgh <gvanburgh@bloomberg.net>
Reviewed-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-19 10:04:21 -08:00
Luke Diamand
df8a9e86db git-p4: avoid crash adding symlinked directory
When submitting to P4, if git-p4 came across a symlinked
directory, then during the generation of the submit diff, it would
try to open it as a normal file and fail.

Spot symlinks (of any type) and output a description of the symlink
instead.

Add a test case.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-18 13:19:40 -08:00
Lars Schneider
7eeda8b821 t0021: fix flaky test
t0021.15 creates files, adds them to the index, and commits them. All
this usually happens in a test run within the same second and Git cannot
know if the files have been changed between `add` and `commit`.  Thus,
Git has to run the clean filter in both operations. Sometimes these
invocations spread over two different seconds and Git can infer that the
files were not changed between `add` and `commit` based on their
modification timestamp. The test would fail as it expects the filter
invocation. Remove this expectation to make the test stable.

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-18 13:01:20 -08:00
Jeff King
29401e1575 index-pack: skip collision check when not in repository
You can run "git index-pack path/to/foo.pack" outside of a
repository to generate an index file, or just to verify the
contents. There's no point in doing a collision check, since
we obviously do not have any objects to collide with.

The current code will blindly look in .git/objects based on
the result of setup_git_env(). That effectively gives us the
right answer (since we won't find any objects), but it's a
waste of time, and it conflicts with our desire to
eventually get rid of the "fallback to .git" behavior of
setup_git_env().

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-16 13:57:19 -08:00
Johannes Sixt
7814fbe3f1 normalize_path_copy(): fix pushing to //server/share/dir on Windows
normalize_path_copy() is not prepared to keep the double-slash of a
//server/share/dir kind of path, but treats it like a regular POSIX
style path and transforms it to /server/share/dir.

The bug manifests when 'git push //server/share/dir master' is run,
because tmp_objdir_add_as_alternate() uses the path in normalized
form when it registers the quarantine object database via
link_alt_odb_entries(). Needless to say that the directory cannot be
accessed using the wrongly normalized path.

Fix it by skipping all of the root part, not just a potential drive
prefix. offset_1st_component takes care of this, see the
implementation in compat/mingw.c::mingw_offset_1st_component().

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-16 13:10:43 -08:00
Jeff King
a3c45d1260 t: use nongit() function where applicable
Many tests want to run a command outside of any git repo;
with the nongit() function this is now a one-liner. It saves
a few lines, but more importantly, it's immediately obvious
what the code is trying to accomplish.

This doesn't convert every such case in the test suite; it
just covers those that want to do a one-off command. Other
cases, such as the ones in t4035, are part of a larger
scheme of outside-repo files, and it's less confusing for
them to stay consistent with the surrounding tests.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-16 09:31:00 -08:00
Jeff King
7176a31444 index-pack: complain when --stdin is used outside of a repo
The index-pack builtin is marked as RUN_SETUP_GENTLY,
because it's perfectly fine to index a pack in the
filesystem outside of any repository. However, --stdin mode
will write the result to the object database, which does not
make sense outside of a repository. Doing so creates a bogus
".git" directory with nothing in it except the newly-created
pack and its index.

Instead, let's flag this as an error and abort.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-16 09:29:43 -08:00
Jeff King
de95302a4c t5000: extract nongit function to test-lib-functions.sh
This function abstracts the idea of running a command
outside of any repository (which is slightly awkward to do
because even if you make a non-repo directory, git may keep
walking up outside of the trash directory). There are
several scripts that use the same technique, so let's make
the function available for everyone.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-16 09:29:16 -08:00
Jeff King
54471fdcc3 README: replace gmane link with public-inbox
The general status and future of gmane is unclear at this
point, but certainly it does not seem to be carrying
gmane.comp.version-control.git at all anymore. Let's point
to public-inbox.org, which seems to be the favored archive
on the list these days (and which uses message-ids in its
URLs, making the links somewhat future-proof).

Reported-by: Chiel ten Brinke <ctenbrinke@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-15 09:30:09 -08:00
Junio C Hamano
ce73bb22d8 Revert "sequencer: remove useless get_dir() function"
This reverts commit 39784cd362.

The function had only one caller when the "remove useless" was
written, but another topic will soon make heavy use of it and more
importantly the function will return different paths depending on
the value in opts.
2016-12-14 14:56:46 -08:00
Jeff King
87433261a4 parse-options: print "fatal:" before usage_msg_opt()
Programs may use usage_msg_opt() to print a brief message
followed by the program usage, and then exit. The message
isn't prefixed at all, though, so it doesn't match our usual
error output and is easy to overlook:

    $ git clone 1 2 3
    Too many arguments.

    usage: git clone [<options>] [--] <repo> [<dir>]

    -v, --verbose         be more verbose
    -q, --quiet           be more quiet
    --progress            force progress reporting
    -n, --no-checkout     don't create a checkout
    --bare                create a bare repository
    [...and so on for another 31 lines...]

It looks especially bad when the message starts with an
option, like:

    $ git replace -e
    -e needs exactly one argument

    usage: git replace [-f] <object> <replacement>
       or: git replace [-f] --edit <object>
    [...etc...]

Let's put our usual "fatal:" prefix in front of it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 09:58:09 -08:00
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
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
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
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
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