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rit
17 years agoMerge branch 'rs/maint-grep-word-regexp-fix' into maint
Junio C Hamano [Tue, 2 Jun 2009 14:48:09 +0000 (07:48 -0700)]
Merge branch 'rs/maint-grep-word-regexp-fix' into maint

* rs/maint-grep-word-regexp-fix:
  grep: fix colouring of matches with zero length
  grep: fix word-regexp at the beginning of lines

17 years agoMerge branch 'sb/maint-1.6.2-opt-filename-fix' into maint
Junio C Hamano [Tue, 2 Jun 2009 14:47:03 +0000 (07:47 -0700)]
Merge branch 'sb/maint-1.6.2-opt-filename-fix' into maint

* sb/maint-1.6.2-opt-filename-fix:
  apply, fmt-merge-msg: use relative filenames
  commit: -F overrides -t

17 years agoMerge branch 'jc/maint-add-p-coalesce-fix' into maint
Junio C Hamano [Tue, 2 Jun 2009 14:46:52 +0000 (07:46 -0700)]
Merge branch 'jc/maint-add-p-coalesce-fix' into maint

* jc/maint-add-p-coalesce-fix:
  t3701: ensure correctly set up repository after skipped tests
  Revert "git-add--interactive: remove hunk coalescing"
  Splitting a hunk that adds a line at the top fails in "add -p"

17 years agoMerge branch 'tr/maint-doc-stash-pop' into maint
Junio C Hamano [Tue, 2 Jun 2009 14:43:45 +0000 (07:43 -0700)]
Merge branch 'tr/maint-doc-stash-pop' into maint

* tr/maint-doc-stash-pop:
  Documentation: teach stash/pop workflow instead of stash/apply

17 years agotest-lib: fix http exit codes
Clemens Buchacher [Mon, 1 Jun 2009 12:28:25 +0000 (14:28 +0200)]
test-lib: fix http exit codes

Previously, die() would report the exit code of stop_httpd. Instead,
save and reset the exit code before dying.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agotest-lib: allow exit trap to be used for cleanup by tests
Clemens Buchacher [Mon, 1 Jun 2009 12:14:41 +0000 (14:14 +0200)]
test-lib: allow exit trap to be used for cleanup by tests

Exit trap should not be removed in case tests require cleanup code. This
is especially important if tests are executed with the --immediate option.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agotest-lib: fail if invalid options are passed
Clemens Buchacher [Mon, 1 Jun 2009 12:14:40 +0000 (14:14 +0200)]
test-lib: fail if invalid options are passed

Previously, unknown options would be ignored, including any subsequent
valid options.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogrep: fix colouring of matches with zero length
René Scharfe [Mon, 1 Jun 2009 21:53:05 +0000 (23:53 +0200)]
grep: fix colouring of matches with zero length

If a zero-length match is encountered, break out of loop and show the rest
of the line uncoloured.  Otherwise we'd be looping forever, trying to make
progress by advancing the pointer by zero characters.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agorefuse to merge during a merge
Clemens Buchacher [Mon, 1 Jun 2009 09:20:56 +0000 (11:20 +0200)]
refuse to merge during a merge

The following is an easy mistake to make for users coming from version
control systems with an "update and commit"-style workflow.

        1. git pull
        2. resolve conflicts
        3. git pull

Step 3 overrides MERGE_HEAD, starting a new merge with dirty index.
IOW, probably not what the user intended. Instead, refuse to merge
again if a merge is in progress.

Reported-by: Dave Olszewski <cxreg@pobox.com>
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agomatch_refs: search ref list tail internally
Clemens Buchacher [Sun, 31 May 2009 14:26:48 +0000 (16:26 +0200)]
match_refs: search ref list tail internally

Avoid code duplication by moving list tail search to match_refs().

This does not change the semantics, except for http-push, which now inserts
to the front of the ref list in order to get rid of the global remote_tail.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-show-branch.txt: document --date-order option
Stephen Boyd [Mon, 1 Jun 2009 06:34:46 +0000 (23:34 -0700)]
git-show-branch.txt: document --date-order option

Copy the description of date-order from rev-list-options.txt, and then
reword it to be commit specific. While we're at it, put <rev> <glob>...
on a new line to not exceed 80 characters.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoAdd custom memory allocator to MinGW and MacOS builds
Marius Storm-Olsen [Sun, 31 May 2009 16:15:23 +0000 (18:15 +0200)]
Add custom memory allocator to MinGW and MacOS builds

The standard allocator on Windows is pretty bad prior
to Windows Vista, and nedmalloc is better than the
modified dlmalloc provided with newer versions of the
MinGW libc.

NedMalloc stats in Git
----------------------
  All results are the best result out of 3 runs. The
  benchmarks have been done on different hardware, so
  the repack times are not comparable.

  These benchmarks are all based on 'git repack -adf'
  on the Linux kernel.

  XP
  -----------------------------------------------
  MinGW               Threads  Total Time   Speed
  -----------------------------------------------
  3.4.2                  (1T)  00:12:28.422
  3.4.2     + nedmalloc  (1T)  00:07:25.437 1.68x

  3.4.5                  (1T)  00:12:20.718
  3.4.5     + nedmalloc  (1T)  00:07:24.809 1.67x

  4.3.3-tdm              (1T)  00:12:01.843
  4.3.3-tdm + nedmalloc  (1T)  00:07:16.468 1.65x

  4.3.3-tdm              (2T)  00:07:35.062
  4.3.3-tdm + nedmalloc  (2T)  00:04:57.874 1.54x

  Vista
  -----------------------------------------------
  MinGW               Threads  Total Time   Speed
  -----------------------------------------------
  4.3.3-tdm              (1T)  00:07:40.844
  4.3.3-tdm + nedmalloc  (1T)  00:07:17.548 1.05x

  4.3.3-tdm              (2T)  00:05:33.746
  4.3.3-tdm + nedmalloc  (2T)  00:05:27.334 1.02x

  Mac Mini
  -----------------------------------------------
  GCC                 Threads  Total Time   Speed
  -----------------------------------------------
  i686-darwin9-4.0.1     (2T)  00:09:57.346
  i686-darwin9-4.0.1+ned (2T)  00:08:51.072 1.12x

Signed-off-by: Marius Storm-Olsen <marius@trolltech.com>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMinGW readdir reimplementation to support d_type
Marius Storm-Olsen [Sun, 31 May 2009 16:15:22 +0000 (18:15 +0200)]
MinGW readdir reimplementation to support d_type

The original readdir implementation was fast, but didn't
support the d_type. This means that git would do additional
lstats for each entry, to figure out if the entry was a
directory or not. This unneedingly slowed down many
operations, since Windows API provides this information
directly when walking the directories.

By running this implementation on Moe's repo structure:
  mkdir bummer && cd bummer; for ((i=0;i<100;i++)); do
    mkdir $i && pushd $i;
      for ((j=0;j<1000;j++)); do echo "$j" >$j; done;
    popd;
  done

We see the following speedups:
  git add .
  -------------------
  old: 00:00:23(.087)
  new: 00:00:21(.512) 1.07x

  git status
  -------------------
  old: 00:00:03(.306)
  new: 00:00:01(.684) 1.96x

  git clean -dxf
  -------------------
  old: 00:00:01(.918)
  new: 00:00:00(.295) 6.50x

Signed-off-by: Marius Storm-Olsen <marius@trolltech.com>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoconnect.c: Support PuTTY plink and TortoisePlink as SSH on Windows
Edward Z. Yang [Sun, 31 May 2009 16:15:21 +0000 (18:15 +0200)]
connect.c: Support PuTTY plink and TortoisePlink as SSH on Windows

OpenSSH uses -p to specify custom ports, while PuTTY plink and
TortoisePlink use -P. Git now detects if plink is in GIT_SSH and
modify its flags as necessary.

We call plink with -batch, so that it will error out with an error
message instead of waiting for user input.  As reported in msysGit
issue 96, plink wants to interact with the user asking if a host
key should be accepted, but this just blocks the terminal, since
plink tries to get the answer from stdin.  However, stdin is
already connected to Git that wants to send input to the remote
command.

But we do not pass -batch to TortoisePlink, because TortoisePlink
uses a GUI to communicate with the user, and it does not understand
-batch.

Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit: browsing paths with spaces when using the start command
Pat Thoyts [Sun, 31 May 2009 16:15:20 +0000 (18:15 +0200)]
git: browsing paths with spaces when using the start command

msysGit issue 258 tracks a problem opening a browser onto file
paths that contain spaces or parentheses when calling the
web--browse script. This patch modifies how the start command is
called to solve this.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMinGW: fix warning about implicit declaration of _getch()
Johannes Schindelin [Mon, 1 Jun 2009 06:41:45 +0000 (08:41 +0200)]
MinGW: fix warning about implicit declaration of _getch()

conio.h provides the declaration.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agotest-chmtime: work around Windows limitation
Johannes Schindelin [Sun, 31 May 2009 16:15:18 +0000 (18:15 +0200)]
test-chmtime: work around Windows limitation

Windows has problems changing the mtime when the file is write protected,
even by the owner of said file.

Add a Windows-only workaround to change the mode if necessary before
trying to change the mtime.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoWork around a regression in Windows 7, causing erase_in_line() to crash sometimes
Johannes Schindelin [Mon, 1 Jun 2009 06:04:16 +0000 (08:04 +0200)]
Work around a regression in Windows 7, causing erase_in_line() to crash sometimes

The function FillConsoleOutputCharacterA() was pretty content in XP to take a NULL
pointer if we did not want to store the number of written columns.  In Windows 7,
it crashes, but only when called from within Git Bash, not from within cmd.exe.
Go figure.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoQuiet make: do not leave Windows behind
Johannes Schindelin [Sun, 31 May 2009 16:15:16 +0000 (18:15 +0200)]
Quiet make: do not leave Windows behind

On Windows, we have to check whether there are scripts which would
override .exe files, but this check missed the "quietification".
Make now prints 'BUILTIN all' instead of a long chain of 'test || rm'
commands.

[spr: added clarification what make will print. ]

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMinGW: GCC >= 4 does not need SNPRINTF_SIZE_CORR anymore
Johannes Schindelin [Sun, 31 May 2009 16:15:15 +0000 (18:15 +0200)]
MinGW: GCC >= 4 does not need SNPRINTF_SIZE_CORR anymore

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agodiff: generate pretty filenames in prep_temp_blob()
David Aguilar [Sun, 31 May 2009 08:35:52 +0000 (01:35 -0700)]
diff: generate pretty filenames in prep_temp_blob()

Naturally, prep_temp_blob() did not care about filenames.
As a result, GIT_EXTERNAL_DIFF and textconv generated
filenames such as ".diff_XXXXXX".

This modifies prep_temp_blob() to generate user-friendly
filenames when creating temporary files.

Diffing "name.ext" now generates "XXXXXX_name.ext".

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agocompat: add a basename() compatibility function
David Aguilar [Sun, 31 May 2009 08:35:51 +0000 (01:35 -0700)]
compat: add a basename() compatibility function

Some systems such as Windows lack libgen.h so provide a
basename() implementation for cross-platform use.

This introduces the NO_LIBGEN_H construct to the Makefile
and autoconf scripts.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agocompat: add a mkstemps() compatibility function
David Aguilar [Sun, 31 May 2009 08:35:50 +0000 (01:35 -0700)]
compat: add a mkstemps() compatibility function

mkstemps() is a BSD extension so provide an implementation
for cross-platform use.

Signed-off-by: David Aguilar <davvid@gmail.com>
Tested-by: Johannes Sixt <j6t@kdbg.org> (Windows)
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agot6050: check pushing something based on a replaced commit
Christian Couder [Wed, 27 May 2009 05:14:09 +0000 (07:14 +0200)]
t6050: check pushing something based on a replaced commit

When using something like:

$ git push $there 04a8c^2:master

we need to parse 04a8c to find its second parent and then start
discussing what object to send with the other end.  "04a8c^2" is a direct
user input and should mean the same commit as git show "04a8c^2" would
give the user, so it obviously needs to obey the replace rules (making
04a8c parsed), but the object transfer should not look at replace at all.

This patch adds some tests to check that the above is working well.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoDocumentation: add documentation for "git replace"
Christian Couder [Mon, 13 Apr 2009 22:36:59 +0000 (00:36 +0200)]
Documentation: add documentation for "git replace"

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoAdd git-replace to .gitignore
David Aguilar [Tue, 14 Apr 2009 02:01:27 +0000 (19:01 -0700)]
Add git-replace to .gitignore

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agobuiltin-replace: use "usage_msg_opt" to give better error messages
Christian Couder [Mon, 2 Feb 2009 05:13:06 +0000 (06:13 +0100)]
builtin-replace: use "usage_msg_opt" to give better error messages

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoparse-options: add new function "usage_msg_opt"
Christian Couder [Mon, 2 Feb 2009 05:12:58 +0000 (06:12 +0100)]
parse-options: add new function "usage_msg_opt"

This function can be used instead of "usage_with_options" when you
want to print an error message before the usage string.

It may be useful because:

if (condition)
usage_msg_opt("condition is false", usage, opts);

is shorter than:

if (condition) {
fprintf(stderr, "condition is false\n\n");
usage_with_options(usage, opts);
}

and may be more consistent.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agobuiltin-replace: teach "git replace" to actually replace
Christian Couder [Mon, 2 Feb 2009 05:12:53 +0000 (06:12 +0100)]
builtin-replace: teach "git replace" to actually replace

Teach the syntax: "git replace <object> <replacement>", so that
"git replace" can now create replace refs. These replace refs
will be used by read_sha1_file to substitute <object> with
<replacement> for most of the commands.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoAdd new "git replace" command
Christian Couder [Mon, 2 Feb 2009 05:12:44 +0000 (06:12 +0100)]
Add new "git replace" command

This command can only be used now to list replace refs in
"refs/replace/" and to delete them.

The option to list replace refs is "-l".
The option to delete replace refs is "-d".

The behavior should be consistent with how "git tag" and "git branch"
are working.

The code has been copied from "builtin-tag.c" by Kristian Høgsberg
<krh@redhat.com> and Carlos Rica <jasampler@gmail.com> that was itself
based on git-tag.sh and mktag.c by Linus Torvalds.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoenvironment: add global variable to disable replacement
Christian Couder [Fri, 23 Jan 2009 09:07:46 +0000 (10:07 +0100)]
environment: add global variable to disable replacement

This new "read_replace_refs" global variable is set to 1 by
default, so that replace refs are used by default. But
reachability traversal and packing commands ("cmd_fsck",
"cmd_prune", "cmd_pack_objects", "upload_pack",
"cmd_unpack_objects") set it to 0, as they must work with the
original DAG.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agomktag: call "check_sha1_signature" with the replacement sha1
Christian Couder [Fri, 23 Jan 2009 09:07:26 +0000 (10:07 +0100)]
mktag: call "check_sha1_signature" with the replacement sha1

Otherwise we get a "sha1 mismatch" error for replaced objects.

Note that I am not sure at all that this is a good change.
It may be that we should just refuse to tag a replaced object. But
in this case we should probably give a meaningfull error message
instead of "sha1 mismatch".

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoreplace_object: add a test case
Christian Couder [Fri, 23 Jan 2009 09:07:18 +0000 (10:07 +0100)]
replace_object: add a test case

In this patch the setup code is very big, but this will be used in
test cases that will be added later.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoobject: call "check_sha1_signature" with the replacement sha1
Christian Couder [Fri, 23 Jan 2009 09:07:10 +0000 (10:07 +0100)]
object: call "check_sha1_signature" with the replacement sha1

Otherwise we get a "sha1 mismatch" error for replaced objects.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agosha1_file: add a "read_sha1_file_repl" function
Christian Couder [Fri, 23 Jan 2009 09:07:01 +0000 (10:07 +0100)]
sha1_file: add a "read_sha1_file_repl" function

This new function will replace "read_sha1_file". This latter function
becoming just a stub to call the former will a NULL "replacement"
argument.

This new function is needed because sometimes we need to use the
replacement sha1.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoreplace_object: add mechanism to replace objects found in "refs/replace/"
Christian Couder [Fri, 23 Jan 2009 09:06:53 +0000 (10:06 +0100)]
replace_object: add mechanism to replace objects found in "refs/replace/"

The code implementing this mechanism has been copied more-or-less
from the commit graft code.

This mechanism is used in "read_sha1_file". sha1 passed to this
function that match a ref name in "refs/replace/" are replaced by
the sha1 that has been read in the ref.

We "die" if the replacement recursion depth is too high or if we
can't read the replacement object.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agorefs: add a "for_each_replace_ref" function
Christian Couder [Fri, 23 Jan 2009 09:06:38 +0000 (10:06 +0100)]
refs: add a "for_each_replace_ref" function

This is some preparation work for the following patches that are using
the "refs/replace/" ref namespace.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMerge branch 'sb/opt-filename'
Junio C Hamano [Sun, 31 May 2009 23:57:42 +0000 (16:57 -0700)]
Merge branch 'sb/opt-filename'

* sb/opt-filename:
  parse-opts: add OPT_FILENAME and transition builtins
  parse-opts: prepare for OPT_FILENAME

Conflicts:
builtin-log.c

17 years agoMerge branch 'jc/solaris-0811'
Junio C Hamano [Sun, 31 May 2009 23:18:02 +0000 (16:18 -0700)]
Merge branch 'jc/solaris-0811'

* jc/solaris-0811:
  OpenSolaris 200811 (SunOS 5.11) does not want OLD_ICONV
  Teach Solaris that _XOPEN_SOURCE=600 really menas XPG6

17 years agoMerge branch 'sb/show-branch-parse-options'
Junio C Hamano [Sun, 31 May 2009 23:17:58 +0000 (16:17 -0700)]
Merge branch 'sb/show-branch-parse-options'

* sb/show-branch-parse-options:
  show-branch: migrate to parse-options API
  parse-options: add PARSE_OPT_LITERAL_ARGHELP for complicated argh's

Conflicts:
parse-options.h

17 years agoMerge branch 'mm/apply-double-slash'
Junio C Hamano [Sun, 31 May 2009 23:17:46 +0000 (16:17 -0700)]
Merge branch 'mm/apply-double-slash'

* mm/apply-double-slash:
  apply: handle filenames with double slashes better

17 years agoMerge branch 'sb/format-patch-parseopt'
Junio C Hamano [Sun, 31 May 2009 23:17:31 +0000 (16:17 -0700)]
Merge branch 'sb/format-patch-parseopt'

* sb/format-patch-parseopt:
  format-patch: migrate to parse-options API

Conflicts:
builtin-log.c

17 years agoMerge branch 'jc/mktree'
Junio C Hamano [Sun, 31 May 2009 23:17:11 +0000 (16:17 -0700)]
Merge branch 'jc/mktree'

* jc/mktree:
  mktree: validate entry type in input
  mktree --batch: build more than one tree object
  mktree --missing: updated usage message and man page
  mktree --missing: allow missing objects
  t1010: add mktree test
  mktree: do not barf on a submodule commit
  builtin-mktree.c: use a helper function to handle one line of input
  mktree: use parse-options
  build-in git-mktree

17 years agoMerge branch 'ew/svn-test-and-old-i18n'
Junio C Hamano [Sun, 31 May 2009 23:17:07 +0000 (16:17 -0700)]
Merge branch 'ew/svn-test-and-old-i18n'

* ew/svn-test-and-old-i18n:
  t8005: fix typo, it's ISO-8859-5, not KOI8-R
  t8005: convert CP1251 character set to ISO8859-5
  t8005: use more portable character encoding names
  t5100: use ancient encoding syntax for backwards compatibility
  t9301: use ISO8859-1 rather than ISO-8859-1
  t3901: Use ISO8859-1 instead of ISO-8859-1 for backward compatibility
  t3901: avoid negation on right hand side of '|'
  builtin-mailinfo.c: use "ISO8859-1" instead of "latin1" as fallback encoding
  builtin-mailinfo.c: compare character encodings case insensitively
  Use 'UTF-8' rather than 'utf-8' everywhere for backward compatibility
  t3900: use ancient iconv names for backward compatibility

17 years agoMerge branch 'mw/send-email'
Junio C Hamano [Sun, 31 May 2009 23:16:52 +0000 (16:16 -0700)]
Merge branch 'mw/send-email'

* mw/send-email:
  send-email: Remove superfluous `my $editor = ...'
  send-email: 'References:' should only reference what is sent
  send-email: Handle "GIT:" rather than "GIT: " during --compose
  Docs: send-email: --smtp-server-port can take symbolic ports
  Docs: send-email: Refer to CONFIGURATION section for sendemail.multiedit
  Docs: send-email: Put options back into alphabetical order

17 years agoMerge branch 'cc/bisect' (early part)
Junio C Hamano [Sun, 31 May 2009 23:16:48 +0000 (16:16 -0700)]
Merge branch 'cc/bisect' (early part)

* 'cc/bisect' (early part):
  bisect: check ancestors without forking a "git rev-list" process
  commit: add function to unparse a commit and its parents
  bisect: rework some rev related functions to make them more reusable

17 years agogit-add: no need for -f when resolving a conflict in already tracked path
Jeff King [Sat, 30 May 2009 21:54:18 +0000 (17:54 -0400)]
git-add: no need for -f when resolving a conflict in already tracked path

When a path F that matches ignore pattern has a conflict, "git add F"
insisted the -f option be given, which did not make sense.  It would have
required -f when the path was originally added, but when resolving a
conflict, it already is tracked.

So this should work (and does):

  $ echo file >.gitignore
  $ echo content >file
  $ git add -f file ;# need -f because we are adding new path
  $ echo more content >>file
  $ git add file ;# don't need -f; it is not actually an "other" file

This is handled under the hood by the COLLECT_IGNORED option to
read_directory. When that code finds an ignored file, it checks the
index to make sure it is not actually a tracked file. However, the test
it uses does not take into account unmerged entries, and considers them
to still be ignored. "git ls-files" uses a more elaborate test and gets
the right answer and the same test should be used here.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoconfig.txt: document add.ignore-errors
Stephen Boyd [Sun, 31 May 2009 05:08:02 +0000 (22:08 -0700)]
config.txt: document add.ignore-errors

Use the description of "--ignore-errors" from git-add.txt as
inspiration.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agobash: remove always true if statement from __git_ps1()
SZEDER Gábor [Fri, 29 May 2009 12:00:36 +0000 (14:00 +0200)]
bash: remove always true if statement from __git_ps1()

The recent commits 8763dbb1 (completion: fix PS1 display during a
merge on detached HEAD, 2009-05-16), ff790b6a (completion: simplify
"current branch" in __git_ps1(), 2009-05-10), and d7107ca6
(completion: fix PS1 display during an AM on detached HEAD,
2009-05-26) ensure that the branch name in __git_ps1() is always set
to something sensible.  Therefore, the condition for checking the
non-empty branch name is always fulfilled, and can be removed.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-apply(1): Clarify that one can select where to apply the patch
Björn Steinbrink [Fri, 29 May 2009 10:21:24 +0000 (12:21 +0200)]
git-apply(1): Clarify that one can select where to apply the patch

The patch can be applied to the work tree, the index or both, but the
short description made it look like it's always applied to both.

Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agohttp-push: reuse existing is_null_ref
Clemens Buchacher [Sun, 31 May 2009 10:36:10 +0000 (12:36 +0200)]
http-push: reuse existing is_null_ref

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agot9139 uses ancient, backwards-compatible iconv names
Eric Wong [Sat, 30 May 2009 00:14:47 +0000 (17:14 -0700)]
t9139 uses ancient, backwards-compatible iconv names

This resolves a semantic conflicts early to work with 5ae93df (t3900: use
ancient iconv names for backward compatibility, 2009-05-18).

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMerge git://git.bogomips.org/git-svn
Junio C Hamano [Sun, 31 May 2009 05:25:41 +0000 (22:25 -0700)]
Merge git://git.bogomips.org/git-svn

* git://git.bogomips.org/git-svn:
  git-svn: refuse to dcommit non-UTF-8 messages

17 years agoDocumentation: teach stash/pop workflow instead of stash/apply
Thomas Rast [Thu, 28 May 2009 09:40:15 +0000 (11:40 +0200)]
Documentation: teach stash/pop workflow instead of stash/apply

Recent discussion on the list showed some comments in favour of a
stash/pop workflow:

  http://marc.info/?l=git&m=124234911423358&w=2
  http://marc.info/?l=git&m=124235348327711&w=2

Change the stash documentation and examples to document pop in its own
right (and apply in terms of pop), and use stash/pop in the examples.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoman page: add an EXAMPLES section.
Avery Pennarun [Sat, 30 May 2009 18:24:31 +0000 (14:24 -0400)]
man page: add an EXAMPLES section.

17 years agoAdd basic git-subtree manpage in asciidoc format.
Avery Pennarun [Sat, 30 May 2009 18:05:33 +0000 (14:05 -0400)]
Add basic git-subtree manpage in asciidoc format.

17 years agoMake --squash work with the 'add' command too.
Avery Pennarun [Sat, 30 May 2009 08:11:43 +0000 (04:11 -0400)]
Make --squash work with the 'add' command too.

17 years agoFix splitting after using a squash merge.
Avery Pennarun [Sat, 30 May 2009 07:33:39 +0000 (03:33 -0400)]
Fix splitting after using a squash merge.

17 years agoDon't squash-merge if the old and new commits are the same.
Avery Pennarun [Sat, 30 May 2009 07:33:17 +0000 (03:33 -0400)]
Don't squash-merge if the old and new commits are the same.

17 years agoBasic "subtree merge --squash" support.
Avery Pennarun [Sat, 30 May 2009 07:18:27 +0000 (03:18 -0400)]
Basic "subtree merge --squash" support.

Instead of merging in the history of the entire subproject, just squash it
all into one commit, but try to at least track which commits we used so that
we can do future merges correctly.

Bonus feature: we can actually switch branches of the subproject this way,
just by "squash merging" back and forth from one tag to another.

17 years agomerge_msg() is really more like rejoin_msg().
Avery Pennarun [Sat, 30 May 2009 05:28:20 +0000 (01:28 -0400)]
merge_msg() is really more like rejoin_msg().

17 years agoFIXME help for --squash option
Avery Pennarun [Sat, 30 May 2009 04:48:07 +0000 (00:48 -0400)]
FIXME help for --squash option

17 years agoslightly rearrange help message for split.
Avery Pennarun [Sat, 30 May 2009 05:10:14 +0000 (01:10 -0400)]
slightly rearrange help message for split.

17 years agoNew --branch option to split command.
Avery Pennarun [Sat, 30 May 2009 05:05:43 +0000 (01:05 -0400)]
New --branch option to split command.

This is just a handy way to create a new branch from the newly-split subtree.

17 years agotypo in comment
Avery Pennarun [Sat, 30 May 2009 04:47:59 +0000 (00:47 -0400)]
typo in comment

17 years agoMerge branch 'sb/maint-1.6.2-opt-filename-fix'
Junio C Hamano [Fri, 29 May 2009 22:01:16 +0000 (15:01 -0700)]
Merge branch 'sb/maint-1.6.2-opt-filename-fix'

* sb/maint-1.6.2-opt-filename-fix:
  apply, fmt-merge-msg: use relative filenames
  commit: -F overrides -t

17 years agoMerge branch 'jc/maint-add-p-coalesce-fix'
Junio C Hamano [Fri, 29 May 2009 22:00:15 +0000 (15:00 -0700)]
Merge branch 'jc/maint-add-p-coalesce-fix'

* jc/maint-add-p-coalesce-fix:
  t3701: ensure correctly set up repository after skipped tests
  Revert "git-add--interactive: remove hunk coalescing"
  Splitting a hunk that adds a line at the top fails in "add -p"

17 years agoMerge branch 'rs/maint-grep-word-regexp-fix'
Junio C Hamano [Fri, 29 May 2009 21:59:50 +0000 (14:59 -0700)]
Merge branch 'rs/maint-grep-word-regexp-fix'

* rs/maint-grep-word-regexp-fix:
  grep: fix word-regexp at the beginning of lines

17 years agot9120: don't expect failure with SVN_HTTPD_PORT unset
Stephen Boyd [Tue, 26 May 2009 06:15:47 +0000 (23:15 -0700)]
t9120: don't expect failure with SVN_HTTPD_PORT unset

The test still passes when SVN_HTTPD_PORT is not set. Futhermore, t9115
and t9118 don't check if SVN_HTTPD_PORT is set even though they both use
start_httpd() from lib-git-svn.sh. Admittedly, the test is not very
meaningful without SVN_HTTPD_PORT, as commit f5530b (support for funky
branch and project names over HTTP(S) 2007-11-11) states that the URI
escaping is only done over HTTP(S).

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agofor-each-ref: Do not lookup objects when they will not be used
Anders Kaseorg [Wed, 27 May 2009 19:23:12 +0000 (15:23 -0400)]
for-each-ref: Do not lookup objects when they will not be used

This makes commands such as `git for-each-ref --format='%(refname)'`,
which are used heavily by the bash_completion code, run about 6 times
faster on an uncached repository (3 s intead of 18 s on my linux-2.6
repository with several remotes).

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMakefile: use /usr/ucb/install on SunOS platforms rather than ginstall
Brandon Casey [Thu, 28 May 2009 02:17:05 +0000 (21:17 -0500)]
Makefile: use /usr/ucb/install on SunOS platforms rather than ginstall

We can avoid a GNU dependency by using /usr/ucb/install.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoDocumentation: teach stash/pop workflow instead of stash/apply
Thomas Rast [Thu, 28 May 2009 09:40:15 +0000 (11:40 +0200)]
Documentation: teach stash/pop workflow instead of stash/apply

Recent discussion on the list showed some comments in favour of a
stash/pop workflow:

  http://marc.info/?l=git&m=124234911423358&w=2
  http://marc.info/?l=git&m=124235348327711&w=2

Change the stash documentation and examples to document pop in its own
right (and apply in terms of pop), and use stash/pop in the examples.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-cvsexportcommit can't commit files which have been removed from CVS
Nick Woolley [Thu, 28 May 2009 23:23:33 +0000 (00:23 +0100)]
git-cvsexportcommit can't commit files which have been removed from CVS

If a file X is removed from CVS, it goes into the Attic directory, and CVS
reports it as 'no file X' but with status 'Up-to-date'.  cvsexportcommit
misinterprets this as an existing file and tries to commit a file with the
same name.  Correctly identify these files, so that new files with the
same name can be committed.

Add a test to t9200-git-cvsexportcommit.sh, which tests that we can
re-commit a removed filename which remains in CVS's attic. This adds a
file 'attic_gremlin' in CVS, then "removes" it, then tries to commit a
file with the same name from git.

Signed-off-by: Nick Woolley <git.wu-lee@noodlefactory.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-am foreign patch support: StGIT support
Giuseppe Bilotta [Wed, 27 May 2009 09:25:18 +0000 (11:25 +0200)]
git-am foreign patch support: StGIT support

Support StGIT patches by implementing a simple perl-based converter
mimicking StGIT's own parse_patch. Also support StGIT patch series by
'exploding' the index into a list of files and re-running the mail
splitting with patch_format set to stgit.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-am foreign patch support: autodetect some patch formats
Giuseppe Bilotta [Wed, 27 May 2009 21:20:12 +0000 (23:20 +0200)]
git-am foreign patch support: autodetect some patch formats

Default to mbox format if input is from stdin. Otherwise, look at the
first few lines of the first patch to try to guess its format.

Include checks for mailboxes, stgit patch series, stgit single patches
and hg patches.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-am foreign patch support: introduce patch_format
Giuseppe Bilotta [Wed, 27 May 2009 09:25:16 +0000 (11:25 +0200)]
git-am foreign patch support: introduce patch_format

Set up a framework to allow git-am to support patches which are not in
mailbox format. Introduce a patch_format variable that presently can
only be set from the command line, defaulting to 'mbox' (the only
supported format) if not specified.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMerge branch 'maint'
Junio C Hamano [Fri, 29 May 2009 05:50:23 +0000 (22:50 -0700)]
Merge branch 'maint'

* maint:
  fix segfault showing an empty remote

17 years agobisect: display first bad commit without forking a new process
Christian Couder [Thu, 28 May 2009 21:21:16 +0000 (23:21 +0200)]
bisect: display first bad commit without forking a new process

Previously "git diff-tree --pretty COMMIT" was run using
"run_command_v_opt" to display information about the first bad
commit.

The goal of this patch is to avoid a "fork" and an "exec" call
when displaying that information.

To do that, we manually setup revision information as
"git diff-tree --pretty" would do it, and then use the
"log_tree_commit" function.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agogit-svn: refuse to dcommit non-UTF-8 messages
Eric Wong [Thu, 28 May 2009 07:56:23 +0000 (00:56 -0700)]
git-svn: refuse to dcommit non-UTF-8 messages

...without i18n.commitencoding set in the config.

SVN tries to store all commit messages in UTF-8, however it is
up to the job of the clients to enforce this rule.  SVN servers
themselves do not always enforce this; allowing clients to
commit malformed UTF-8 messages and break repositories.

So git-svn will enforce this and tell the user to set
i18n.commitencoding when a git commit is is not in UTF-8.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
17 years agofix segfault showing an empty remote
Clemens Buchacher [Wed, 27 May 2009 20:13:43 +0000 (22:13 +0200)]
fix segfault showing an empty remote

In case of an empty list, the search for its tail caused a
NULL-pointer dereference.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Reported-by: Erik Faye-Lund <kusmabite@googlemail.com>
Acked-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agot8005: fix typo, it's ISO-8859-5, not KOI8-R
Brandon Casey [Thu, 28 May 2009 01:57:45 +0000 (20:57 -0500)]
t8005: fix typo, it's ISO-8859-5, not KOI8-R

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agobisect: drop unparse_commit() and use clear_commit_marks()
Christian Couder [Wed, 27 May 2009 05:09:40 +0000 (07:09 +0200)]
bisect: drop unparse_commit() and use clear_commit_marks()

The goal of this patch series is to check if good revisions are
ancestor of the bad revision without forking a process to launch
"git rev-list $good ^$bad".

This new version of this patch series does not use an "unparse_commit"
function anymore, we use "clear_commit_marks" instead.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agot5500: Modernize test style
Stephen Boyd [Tue, 26 May 2009 06:17:14 +0000 (23:17 -0700)]
t5500: Modernize test style

Code outside of the test harness was emitting "Initializing..." from
git-init. Fixup this test to be more modern:

    - test_expect_object_count() and count_objects() are unused

    - use grep directly instead of test "..." = $(grep ...)

    - end the test_expect_success line with a single-quote and put the
      test on a new line

    - put as much code inside the test harness as possible

    - no_strict_count_check is unused and duplicates the test
      "new object count"

    - use && whenever possible to catch errors early

    - use test_tick instead of GIT_AUTHOR_DATE=$sec

    - remove debugging aid log.txt

    - use subshells instead of cd-ing around

Also merge the pull test into one large test.

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agocompletion: fix PS1 display during an AM on detached HEAD
Junio C Hamano [Tue, 26 May 2009 05:56:03 +0000 (22:56 -0700)]
completion: fix PS1 display during an AM on detached HEAD

This is a companion patch to previous 8763dbb (completion: fix PS1 display
during a merge on detached HEAD, 2009-05-16).  While rebasing or running am
on a detached HEAD, the code failed to set $b (branch description) that
enables the whole status display business.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoimap-send: add support for IPv6
Benjamin Kramer [Mon, 25 May 2009 19:13:54 +0000 (21:13 +0200)]
imap-send: add support for IPv6

Add IPv6 support by implementing name resolution with the
protocol agnostic getaddrinfo(3) API. The old gethostbyname(3)
code is still available when git is compiled with NO_IPV6.

Signed-off-by: Benjamin Kramer <benny.kra@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoUpdate draft release notes to 1.6.4
Junio C Hamano [Tue, 26 May 2009 02:46:17 +0000 (19:46 -0700)]
Update draft release notes to 1.6.4

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMerge branch 'maint'
Junio C Hamano [Tue, 26 May 2009 02:44:52 +0000 (19:44 -0700)]
Merge branch 'maint'

* maint:
  Prepare for 1.6.3.2
  fix cat-file usage message and documentation
  fetch: report ref storage DF errors more accurately
  lock_ref: inform callers of unavailable ref
  merge-options.txt: Clarify merge --squash

Conflicts:
RelNotes

17 years agoPrepare for 1.6.3.2
Junio C Hamano [Tue, 26 May 2009 02:20:39 +0000 (19:20 -0700)]
Prepare for 1.6.3.2

Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agoMerge branch 'js/maint-no-ln-across-libexec-and-bin' into maint
Junio C Hamano [Tue, 26 May 2009 02:04:29 +0000 (19:04 -0700)]
Merge branch 'js/maint-no-ln-across-libexec-and-bin' into maint

* js/maint-no-ln-across-libexec-and-bin:
  Add NO_CROSS_DIRECTORY_HARDLINKS support to the Makefile

Conflicts:
Makefile

17 years agoMerge branch 'lt/maint-diff-reduce-lstat' into maint
Junio C Hamano [Tue, 26 May 2009 02:04:08 +0000 (19:04 -0700)]
Merge branch 'lt/maint-diff-reduce-lstat' into maint

* lt/maint-diff-reduce-lstat:
  Teach 'git checkout' to preload the index contents
  Avoid unnecessary 'lstat()' calls in 'get_stat_data()'

17 years agoMerge branch 'jm/format-patch-no-auto-n-when-k-is-given' into maint
Junio C Hamano [Tue, 26 May 2009 02:03:52 +0000 (19:03 -0700)]
Merge branch 'jm/format-patch-no-auto-n-when-k-is-given' into maint

* jm/format-patch-no-auto-n-when-k-is-given:
  format-patch let -k override a config-specified format.numbered

17 years agoMerge branch 'do/maint-merge-recursive-fix' into maint
Junio C Hamano [Tue, 26 May 2009 02:03:43 +0000 (19:03 -0700)]
Merge branch 'do/maint-merge-recursive-fix' into maint

* do/maint-merge-recursive-fix:
  merge-recursive: never leave index unmerged while recursing

17 years agoMerge branch 'jk/maint-1.6.0-trace-argv' into maint
Junio C Hamano [Tue, 26 May 2009 02:03:20 +0000 (19:03 -0700)]
Merge branch 'jk/maint-1.6.0-trace-argv' into maint

* jk/maint-1.6.0-trace-argv:
  fix GIT_TRACE segfault with shell-quoted aliases

Conflicts:
alias.c

17 years agoMerge branch 'np/push-delta' into maint
Junio C Hamano [Tue, 26 May 2009 02:02:11 +0000 (19:02 -0700)]
Merge branch 'np/push-delta' into maint

* np/push-delta:
  allow OFS_DELTA objects during a push

17 years agoMerge branch 'ar/merge-one-file-diag' into maint
Junio C Hamano [Tue, 26 May 2009 02:01:59 +0000 (19:01 -0700)]
Merge branch 'ar/merge-one-file-diag' into maint

* ar/merge-one-file-diag:
  Clarify kind of conflict in merge-one-file helper

17 years agoMerge branch 'ar/unlink-err' into maint
Junio C Hamano [Tue, 26 May 2009 02:01:50 +0000 (19:01 -0700)]
Merge branch 'ar/unlink-err' into maint

* ar/unlink-err:
  print unlink(2) errno in copy_or_link_directory
  replace direct calls to unlink(2) with unlink_or_warn
  Introduce an unlink(2) wrapper which gives warning if unlink failed

17 years agoMerge branch 'jk/maint-add-empty' into maint
Junio C Hamano [Tue, 26 May 2009 02:01:41 +0000 (19:01 -0700)]
Merge branch 'jk/maint-add-empty' into maint

* jk/maint-add-empty:
  add: don't complain when adding empty project root

17 years agofix cat-file usage message and documentation
Jeff King [Mon, 25 May 2009 10:33:15 +0000 (06:33 -0400)]
fix cat-file usage message and documentation

cat-file with an object on the command line requires an
option to tell it what to output (type, size, pretty-print,
etc). However, the square brackets in the usage imply that
those options are not required. This patch switches them to
parentheses to indicate "required but grouped-OR" (curly
braces might also work, but this follows the convention used
already by "git stash").

While we're at it, let's change the <sha1> specifier in the
usage to <object>. That's what the documentation uses, and
it does actually use the regular object lookup.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agofetch: report ref storage DF errors more accurately
Jeff King [Mon, 25 May 2009 10:40:54 +0000 (06:40 -0400)]
fetch: report ref storage DF errors more accurately

When we fail to store a fetched ref, we recommend that the
user try running "git prune" to remove up any old refs that
have been deleted by the remote, which would clear up any DF
conflicts. However, ref storage might fail for other
reasons (e.g., permissions problems) in which case the
advice is useless and misleading.

This patch detects when there is an actual DF situation and
only issues the advice when one is found.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
17 years agolock_ref: inform callers of unavailable ref
Jeff King [Mon, 25 May 2009 10:37:15 +0000 (06:37 -0400)]
lock_ref: inform callers of unavailable ref

One of the ways that locking might fail is that there is a
DF conflict between two refs (e.g., you want to lock
"foo/bar" but "foo" already exists). In this case, we return
an error, but there is no way for the caller to know the
specific problem.

This patch sets errno to ENOTDIR, which is the most sensible
code. It's what we would see if the refs were stored purely
in the filesystem (but these days we must check the
namespace manually due to packed refs).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>