OSDN Git Service
Johannes Schindelin [Wed, 18 Jul 2007 13:17:43 +0000 (14:17 +0100)]
filter-branch: get rid of "set -e"
It was reported by Alex Riesen that "set -e" can break something as
trivial as "unset CDPATH" in bash.
So get rid of "set -e".
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Richard MUSIL [Tue, 17 Jul 2007 17:02:57 +0000 (19:02 +0200)]
git-svn: Minimalistic patch which allows svn usernames with space(s).
Changed filter for username in svn-authors file, so even 'user name' is accepted.
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Linus Torvalds [Tue, 17 Jul 2007 17:34:44 +0000 (10:34 -0700)]
Do a better job at guessing unknown character sets
At least in the kernel development community, we're generally slowly
converting to UTF-8 everywhere, and the old default of Latin1 in emails is
being supplanted by UTF-8, and it doesn't necessarily show up as such in
the mail headers (because, quite frankly, when people send patches
around, they want the email client to do as little as humanly possible
about the patch)
Despite that, it's often the case that email addresses etc still have
Latin1, so I've seen emails where this is a mixed bag, with Signed-off
parts being copied from email (and containing Latin1 characters), and the
rest of the email being a patch in UTF-8.
So this suggests a very natural change: if the target character set is
utf-8 (the default), and if the source already looks like utf-8, just
assume that it doesn't need any conversion at all.
Only assume that it needs conversion if it isn't already valid utf-8, in
which case we (for historical reasons) will assume it's Latin1.
Basically no really _valid_ latin1 will ever look like utf-8, so while
this changes our historical behaviour, it doesn't do so in practice, and
makes the default behaviour saner for the case where the input was already
in proper format.
We could do a more fancy guess, of course, but this correctly handled a
series of patches I just got from Andrew that had a mixture of Latin1 and
UTF-8 (in different emails, but without any character set indication).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
しらいしななこ [Tue, 17 Jul 2007 08:15:42 +0000 (17:15 +0900)]
Document "git stash message..."
The command was recently updated to take message on the command line, but
this feature has not been documented.
Signed-off-by: Nanako Shiraishi <nanako3@bluebottle.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sven Verdoolaege [Tue, 17 Jul 2007 18:28:28 +0000 (20:28 +0200)]
unpack-trees.c: assume submodules are clean during check-out
In particular, when moving back to a commit without a given submodule
and then moving back forward to a commit with the given submodule,
we shouldn't complain that updating would lose untracked file in
the submodule, because git currently does not checkout subprojects
during superproject check-out.
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 19 Jul 2007 00:00:36 +0000 (17:00 -0700)]
Merge branch 'maint'
* maint:
Force listingblocks to be monospaced in manpages
Do not expect unlink(2) to fail on a directory.
Julian Phillips [Wed, 18 Jul 2007 21:33:57 +0000 (22:33 +0100)]
Force listingblocks to be monospaced in manpages
For the html output we can use a stylesheet to make sure that the
listingblocks are presented in a monospaced font. For the manpages do
it manually by inserting a ".ft C" before and ".ft" after the block in
question.
In order for these roff commands to get through to the manpage they
have to be element encoded to prevent quoting.
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 18 Jul 2007 05:58:28 +0000 (22:58 -0700)]
Do not expect unlink(2) to fail on a directory.
When "git checkout-index" checks out path A/B/C, it makes sure A
and A/B are truly directories; if there is a regular file or
symlink at A, we prefer to remove it.
We used to do this by catching an error return from mkdir(2),
and on EEXIST did unlink(2), and when it succeeded, tried
another mkdir(2).
Thomas Glanzmann found out the above does not work on Solaris
for a root user, as unlink(2) was so old fashioned there that it
allowed to unlink a directory.
As pointed out, this still doesn't guarantee that git won't call
"unlink()" on a directory (race conditions etc), but that's
fundamentally true (there is no "funlink()" like there is
"fstat()"), and besides, that is in no way git-specific (ie it's
true of any application that gets run as root).
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 17 Jul 2007 06:59:54 +0000 (23:59 -0700)]
Update INSTALL
We haven't used bignum in rev-list from openssl nor elsewhere
for a long time. Also git-gui is now part of git.git itself,
and depends on wish.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Francis Moreau [Mon, 16 Jul 2007 11:38:47 +0000 (13:38 +0200)]
Fix git-branch documentation when using remote refs
Signed-off-by: Francis Moreau <francis.moro@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Eric Wong [Mon, 16 Jul 2007 04:53:50 +0000 (21:53 -0700)]
git-svn: fix commiting renames over DAV with funky file names
Renaming files with non-URI friendly characters caused
breakage when committing to DAV repositories (over http(s)).
Even if I try leaving out the $self->{url} from the return value
of url_path(), a partial (without host), unescaped path name
does not work.
Filenames for DAV repos need to be URI-encoded before being
passed to the library. Since this bug did not affect file://
and svn:// repos, the git-svn test library needed to be expanded
to include support for starting Apache with mod_dav_svn enabled.
This new test is not enabled by default, but can be enabled by
setting SVN_HTTPD_PORT to any available TCP/IP port on
127.0.0.1.
Additionally, for running this test, the following variables
(with defaults shown) can be changed for the suitable system.
The default values are set for Debian systems:
SVN_HTTPD_MODULE_PATH=/usr/lib/apache2/modules
SVN_HTTPD_PATH=/usr/sbin/apache2
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
David Kastrup [Sun, 15 Jul 2007 09:46:11 +0000 (11:46 +0200)]
contrib/emacs/Makefile: Also install .el files.
Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sun, 15 Jul 2007 23:41:17 +0000 (16:41 -0700)]
GIT v1.5.3-rc2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sean [Sun, 15 Jul 2007 19:52:32 +0000 (15:52 -0400)]
Demote git-p4import to contrib status.
Move git-p4import.py and Documentation/git-p4import.txt into
a contrib/p4import directory. Add a README there directing
people to contrib/fast-import/git-p4 as a better alternative.
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sean [Sun, 15 Jul 2007 19:51:01 +0000 (15:51 -0400)]
Remove p4 rpm from git.spec.in.
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sean [Sun, 15 Jul 2007 19:49:33 +0000 (15:49 -0400)]
Remove "WITH_P4IMPORT" knob from the Makefile
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jim Meyering [Sat, 14 Jul 2007 18:48:42 +0000 (20:48 +0200)]
git-cvsserver: detect/diagnose write failure, etc.
There were many operations that did not notice and report errors
to the CVS client, which would have resulted in corrupt working
tree.
Signed-off-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Emil Medve [Sat, 14 Jul 2007 17:51:44 +0000 (12:51 -0500)]
Use $(RM) in Makefiles instead of 'rm -f'
Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sun, 15 Jul 2007 05:57:47 +0000 (22:57 -0700)]
Merge branch 'master' of git://repo.or.cz/git/fastimport
* 'master' of git://repo.or.cz/git/fastimport:
Teach fast-import to recursively copy files/directories
Fix git-p4 on Windows to not use the Posix sysconf function.
Correct trivial typo in fast-import documentation
Junio C Hamano [Sun, 15 Jul 2007 05:56:47 +0000 (22:56 -0700)]
Documentation/git-commit-tree: remove description of a nonexistent limitation
Noticed by Geoff Richards.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Peter Hagervall [Sat, 14 Jul 2007 23:14:45 +0000 (01:14 +0200)]
Make every builtin-*.c file #include "builtin.h"
Make every builtin-*.c file #include "builtin.h".
Also takes care of some declaration/definition mismatches.
Signed-off-by: Peter Hagervall <hager@cs.umu.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shawn O. Pearce [Sun, 15 Jul 2007 05:40:37 +0000 (01:40 -0400)]
Teach fast-import to recursively copy files/directories
Some source material (e.g. Subversion dump files) perform directory
renames by telling us the directory was copied, then deleted in the
same revision. This makes it difficult for a frontend to convert
such data formats to a fast-import stream, as all the frontend has
on hand is "Copy a/ to b/; Delete a/" with no details about what
files are in a/, unless the frontend also kept track of all files.
The new 'C' subcommand within a commit allows the frontend to make a
recursive copy of one path to another path within the branch, without
needing to keep track of the individual file paths. The metadata
copy is performed in memory efficiently, but is implemented as a
copy-immediately operation, rather than copy-on-write.
With this new 'C' subcommand frontends could obviously implement an
'R' (rename) on their own as a combination of 'C' and 'D' (delete),
but since we have already offered up 'R' in the past and it is a
trivial thing to keep implemented I'm not going to deprecate it.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Marius Storm-Olsen [Fri, 13 Jul 2007 12:39:05 +0000 (14:39 +0200)]
Fix git-p4 on Windows to not use the Posix sysconf function.
Add condition for Windows, since it doesn't support the os.sysconf module.
We hardcode the commandline limit to 2K, as that should work on most
Windows platforms.
Signed-off-by: Marius Storm-Olsen <marius@trolltech.com>
Acked-by: Simon Hausmann <simon@lst.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Eric Wong [Sat, 14 Jul 2007 19:40:32 +0000 (12:40 -0700)]
git-svn: remove leading slashes from fetch lines in the generate config
We were previously sensitive to leading slashes in the fetch
lines and incorrectly writing them to the config if the user
used them (needlessly) in the command-line.
This fixes the issue and allows us to play nicely with legacy
configs that have leading slashes in fetch lines.
Thanks to Bradford Smith for figuring this out for me:
>
> This works:
>
> git-svn clone https://my.server.net/repos/path/ -Ttrunk/testing
> -ttags/testing -bbranches/testing testing
>
> This doesn't:
>
> git-svn clone https://my.server.net/repos/path -T/trunk/testing
> -t/tags/testing -b/branches/testing testing
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 14 Jul 2007 20:44:58 +0000 (13:44 -0700)]
Update .mailmap
The script "contrib/stats/mailmap.pl" found a few missed ones.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 14 Jul 2007 20:43:09 +0000 (13:43 -0700)]
Add contrib/stats/mailmap.pl script
This script reads the existing commit log and .mailmap file,
and outputs author e-mail addresses that would map to more
than one names (most likely due to difference in the way they
are spelled, but some are due to ancient botched commits).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Josh Triplett [Sat, 14 Jul 2007 08:05:43 +0000 (01:05 -0700)]
Remove useless uses of cat, and replace with filename arguments
Replace uses of cat that do nothing but writing the contents of
a single file to another command via pipe.
[jc: Original patch from Josh was somewhat buggy and rewrote
"cat $file | wc -l" to "wc -l $file", but this one should be Ok.]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Matthieu Moy [Fri, 13 Jul 2007 17:41:38 +0000 (19:41 +0200)]
More permissive "git-rm --cached" behavior without -f.
In the previous behavior, "git-rm --cached" (without -f) had the same
restriction as "git-rm". This forced the user to use the -f flag in
situations which weren't actually dangerous, like:
$ git add foo # oops, I didn't want this
$ git rm --cached foo # back to initial situation
Previously, the index had to match the file *and* the HEAD. With
--cached, the index must now match the file *or* the HEAD. The behavior
without --cached is unchanged, but provides better error messages.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 14 Jul 2007 06:48:03 +0000 (23:48 -0700)]
Document new --date=<format>
Now, git-log family can take full range of internally supported date format
to their --date=<format> argument. Document it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 14 Jul 2007 06:03:37 +0000 (23:03 -0700)]
Wire new date formats to --date=<format> parser.
Now we can use all internally supported date formats with
git log --date=<format>
syntax. Earlier, we only allowed relative/local/default.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 14 Jul 2007 06:14:52 +0000 (23:14 -0700)]
Make show_rfc2822_date() just another date output format.
These days, show_date() takes a date_mode parameter to specify
the output format, and a separate specialized function for dates
in E-mails does not make much sense anymore.
This retires show_rfc2822_date() function and make it just
another date output format.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Robin Rosenberg [Fri, 13 Jul 2007 23:00:42 +0000 (01:00 +0200)]
Support output ISO 8601 format dates
Support output of full ISO 8601 style dates in e.g. git log
and other places that use interpolation for formatting.
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 14 Jul 2007 05:37:42 +0000 (22:37 -0700)]
Merge branch 'master' of git://git./gitk/gitk
* 'master' of git://git.kernel.org/pub/scm/gitk/gitk:
gitk: Fix bug introduced by previous commit
Alex Riesen [Thu, 12 Jul 2007 22:30:35 +0000 (00:30 +0200)]
Fix git-rebase -i to allow squashing of fast-forwardable commits
Without this change the commits will be left standalone, with
duplicated commit message.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sven Verdoolaege [Fri, 13 Jul 2007 14:14:50 +0000 (16:14 +0200)]
lockfile.c: schedule remove_lock_file only once.
Removing a lockfile once should be enough.
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Stephen Rothwell [Fri, 13 Jul 2007 15:54:06 +0000 (08:54 -0700)]
send-email: discard blank around address in extract_valid_address as well.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Greg KH [Fri, 13 Jul 2007 04:17:49 +0000 (21:17 -0700)]
make git-send-email.perl handle email addresses with no names when Email::Valid is present
When using git-send-email.perl on a changeset that has:
Cc: <stable@kernel.org>
in the body of the description, and the Email::Valid perl module is
installed on the system, the email address will be deemed "invalid" for
some reason (Email::Valid isn't smart enough to handle this?) and
complain and not send the address the email.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Paul Mackerras [Fri, 13 Jul 2007 03:45:55 +0000 (13:45 +1000)]
gitk: Fix bug introduced by previous commit
When I added the "--" case to the code scanning the arguments, I missed
the fact that since the switch statement uses -regexp, the "--" case
will match any argument containing "--", e.g. "--all". This fixes it
by taking out the -regexp (since we don't actually need regular
expression matching) and adjusting the match strings.
A side effect of this is that previously any argument starting with
"-d" would be taken to indicate date mode; now the argument has to be
exactly "-d" if you want date mode.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Jakub Narebski [Thu, 12 Jul 2007 23:54:08 +0000 (01:54 +0200)]
Document git commit --untracked-files and --verbose
Documentation based on description of commit
443f8338 which added
'-u'|'--untracked-files' option to git-status, and on git-runstatus(1)
man page.
Note that those options apply also to git-status.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jakub Narebski [Thu, 12 Jul 2007 23:54:07 +0000 (01:54 +0200)]
Document long options '--message=<msg>' and '--no-commit'
Document that '--message=<msg>' is long version of '-m <msg>' in
git-commit, and that '--no-checkout' is long version of '-n' in
git-clone.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jakub Narebski [Thu, 12 Jul 2007 23:54:06 +0000 (01:54 +0200)]
Update git-merge documentation.
Add "Configuration" section to describe merge.summary
configuration variable (which is mentioned in git-fmt-merge-msg(1)
man page, but it is a plumbing command), and merge.verbosity
configuration variable (so there is a place to make reference
from "Environment Variables" section of git(7) man page) to the
git-merge(1) man page. Also describe GIT_MERGE_VERBOSITY
environment.
The configuration variable merge.verbosity and environment variable
GIT_MERGE_VERBOSITY were introduced in commit
8c3275ab, which also
documented configuration variable but not environment variable.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Fri, 13 Jul 2007 02:27:12 +0000 (22:27 -0400)]
Pack-objects: properly initialize the depth value
Commit
5a235b5e was missing this little detail. Otherwise your pack
will explode.
Problem noted by Brian Downing.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 12 Jul 2007 21:54:33 +0000 (14:54 -0700)]
GIT v1.5.3-rc1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 12 Jul 2007 21:50:57 +0000 (14:50 -0700)]
Merge branch 'master' of git://git./gitk/gitk
* 'master' of git://git.kernel.org/pub/scm/gitk/gitk:
gitk: Improve handling of -- and ambiguous arguments
gitk: Use git log and add support for --left-right
gitk: Fix bug causing "can't read commitrow(0,n)" error
[PATCH] gitk: Fix for tree view ending in nested directories
gitk: Remove the unused stopfindproc function
gitk: Fix bug in the anc_or_desc routine
gitk: Fix the find and highlight functions
Miklos Vajna [Thu, 12 Jul 2007 18:39:27 +0000 (20:39 +0200)]
gitweb: new cgi parameter: opt
Currently the only supported value is '--no-merges' for the 'rss', 'atom',
'log', 'shortlog' and 'history' actions, but it can be easily extended to allow
other parameters for other actions.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
David Kastrup [Thu, 12 Jul 2007 14:48:48 +0000 (16:48 +0200)]
Add missing functions to contrib/emacs/vc-git.el
This is necessary to make several editing functions work, like
C-u C-x v =
Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Steven Walter [Thu, 12 Jul 2007 14:52:30 +0000 (10:52 -0400)]
Documentation for git-log --follow
After vainly searching the Documentation for how to follow renames, I
finally broke down and grepped the source. It would appear that Linus
didn't add write and docs for this feature when he wrote it. The
following patch rectifies that, hopefully sparing future users from
resorting to the source code.
Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Thu, 12 Jul 2007 21:07:59 +0000 (17:07 -0400)]
reduce git-pack-objects memory usage a little more
The delta depth doesn't have to be stored in the global object array
structure since it is only used during the deltification pass.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 12:55:52 +0000 (07:55 -0500)]
Add documentation for --window-memory, pack.windowMemory
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 12:55:51 +0000 (07:55 -0500)]
Add --window-memory option to git-repack
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 13:07:46 +0000 (08:07 -0500)]
Add pack-objects window memory usage limit
This adds an option (--window-memory=N) and configuration variable
(pack.windowMemory = N) to limit the memory size of the pack-objects
delta search window. This works by removing the oldest unpacked objects
whenever the total size goes above the limit. It will always leave
at least one object, though, so as not to completely eliminate the
possibility of computing deltas.
This is an extra limit on top of the normal window size (--window=N);
the window will not dynamically grow above the fixed number of entries
specified to fill the memory limit.
With this, repacking a repository with a mix of large and small objects
is possible even with a very large window.
Cleaner and correct circular buffer handling courtesy of Nicolas Pitre.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 13:32:26 +0000 (08:32 -0500)]
Add functions for parsing integers with size suffixes
Split out the nnn{k,m,g} parsing code from git_config_int into
git_parse_long, so command-line parameters can enjoy the same
functionality. Also add get_parse_ulong for unsigned values.
Make git_config_int use git_parse_long, and add get_config_ulong
as well.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 12:55:48 +0000 (07:55 -0500)]
Support fetching the memory usage of a delta index
Delta indices, at least on 64-bit platforms, tend to be larger than
the actual uncompressed data. As such, keeping track of this storage
is important if you want to successfully limit the memory size of your
pack window.
Squirrel away the total allocation size inside the delta_index struct,
and add an accessor "sizeof_delta_index" to access it.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 12:55:47 +0000 (07:55 -0500)]
Don't try to delta if target is much smaller than source
Add a new try_delta heuristic. Don't bother trying to make a delta if
the target object size is much smaller (currently 1/32) than the source,
as it's very likely not going to get a match. Even if it does, you will
have to read at least 32x the size of the new file to reassemble it,
which isn't such a good deal. This leads to a considerable performance
improvement when deltifying a mix of small and large files with a very
large window, because you don't have to wait for the large files to
percolate out of the window before things start going fast again.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 14:16:11 +0000 (09:16 -0500)]
Correct shebang line for contrib/stats/packinfo.pl
"/bin/perl"? What was I thinking?
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Thu, 12 Jul 2007 07:40:18 +0000 (03:40 -0400)]
script to display a distribution of longest common hash prefixes
This script was originally posted on the git mailing list by
Randal L. Schwartz <merlyn@stonehenge.com>.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Thu, 12 Jul 2007 18:33:21 +0000 (14:33 -0400)]
apply delta depth bias to already deltified objects
We already apply a bias on the initial delta attempt with max_size being
a function of the base object depth. This has the effect of favoring
shallower deltas even if deeper deltas could be smaller, and therefore
creating a wider delta tree (see commits
4e8da195 and
c3b06a69).
This principle should also be applied to all delta attempts for the same
object and not only the first attempt. With this the criteria for the
best delta is not only its size but also its depth, so that a shallower
delta might be selected even if it is larger than a deeper one. Even if
some deltas get larger, they allow for wider delta trees making the
depth limit less quickly reached and therefore better deltas can be
subsequently found, keeping the resulting pack size even smaller.
Runtime access to the pack should also benefit from shallower deltas.
Testing on different repositories showed slighter faster repacks,
smaller resulting packs, and a much nicer curve for delta depth
distribution with no more peak at the maximum depth level.
Improvements are even more significant with smaller depth limits.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 12 Jul 2007 21:17:26 +0000 (14:17 -0700)]
Update list of older git docs
Junio C Hamano [Thu, 12 Jul 2007 21:14:51 +0000 (14:14 -0700)]
Merge commit 'git-gui/master'
* commit 'git-gui/master': (36 commits)
git-gui: Change prior tree SHA-1 verification to use git_read
git-gui: Include a space in Cygwin shortcut command lines
git-gui: Use sh.exe in Cygwin shortcuts
git-gui: Paper bag fix for Cygwin shortcut creation
git-gui: Improve the Windows and Mac OS X shortcut creators
git-gui: Teach console widget to use git_read
git-gui: Perform our own magic shbang detection on Windows
git-gui: Treat `git version` as `git --version`
git-gui: Assume unfound commands are known by git wrapper
git-gui: Correct gitk installation location
git-gui: Always use absolute path to all git executables
git-gui: Show a progress meter for checking out files
git-gui: Change the main window progress bar to use status_bar
git-gui: Extract blame viewer status bar into mega-widget
git-gui: Allow double-click in checkout dialog to start checkout
git-gui: Default selection to first matching ref
git-gui: Unabbreviate commit SHA-1s prior to display
git-gui: Refactor branch switch to support detached head
git-gui: Refactor our ui_status_value update technique
git-gui: Better handling of detached HEAD
...
Junio C Hamano [Thu, 12 Jul 2007 21:12:38 +0000 (14:12 -0700)]
Merge branch 'maint'
* maint:
GIT 1.5.2.4
Teach read-tree 2-way merge to ignore intermediate symlinks
git-gui: Work around bad interaction between Tcl and cmd.exe on ^{tree}
git-gui: Don't linewrap within console windows
git-gui: Correct ls-tree buffering problem in browser
git-gui: Skip nicknames when selecting author initials
git-gui: Ensure windows shortcuts always have .bat extension
git-gui: Include a Push action on the left toolbar
git-gui: Bind M1-P to push action
git-gui: Don't bind F5/M1-R in all windows
git-gui: Unlock the index when cancelling merge dialog
git-gui: properly popup error if gitk should be started but is not installed
Junio C Hamano [Thu, 12 Jul 2007 19:01:47 +0000 (12:01 -0700)]
GIT 1.5.2.4
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Paul Mackerras [Thu, 12 Jul 2007 12:29:49 +0000 (22:29 +1000)]
gitk: Improve handling of -- and ambiguous arguments
This makes gitk more consistent with git rev-list and git log in its
handling of arguments that could be either a revision or a filename;
now gitk displays an error message and quits, rather than treating it
as a revision and getting an error in the underlying git log. Now
gitk always passes "--" to git log even if no filenames are being
specified.
It also makes gitk display errors in invoking git log in a window
rather than on stderr, and makes gitk stop looking for a -d flag
when it sees a "--" argument.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Junio C Hamano [Thu, 12 Jul 2007 08:04:16 +0000 (01:04 -0700)]
Teach read-tree 2-way merge to ignore intermediate symlinks
Earlier in
16a4c61, we taught "read-tree -m -u" not to be
confused when switching from a branch that has a path frotz/filfre
to another branch that has a symlink frotz that points at xyzzy/
directory. The fix was incomplete in that it was still confused
when coming back (i.e. switching from a branch with frotz -> xyzzy/
to another branch with frotz/filfre).
This fix is rather expensive in that for a path that is created
we would need to see if any of the leading component of that
path exists as a symbolic link in the filesystem (in which case,
we know that path itself does not exist, and the fact we already
decided to check it out tells us that in the index we already
know that symbolic link is going away as there is no D/F
conflict).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 12 Jul 2007 08:45:56 +0000 (01:45 -0700)]
Merge branch 'maint' of git://repo.or.cz/git-gui into maint
* 'maint' of git://repo.or.cz/git-gui:
git-gui: Work around bad interaction between Tcl and cmd.exe on ^{tree}
git-gui: Don't linewrap within console windows
git-gui: Correct ls-tree buffering problem in browser
git-gui: Skip nicknames when selecting author initials
git-gui: Ensure windows shortcuts always have .bat extension
git-gui: Include a Push action on the left toolbar
git-gui: Bind M1-P to push action
git-gui: Don't bind F5/M1-R in all windows
git-gui: Unlock the index when cancelling merge dialog
git-gui: properly popup error if gitk should be started but is not installed
Shawn O. Pearce [Thu, 12 Jul 2007 06:45:23 +0000 (02:45 -0400)]
git-gui: Change prior tree SHA-1 verification to use git_read
This cat-file was done on maint, where we did not have git_read
available to us. But here on master we do, so we should make
use of it.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Thu, 12 Jul 2007 06:40:54 +0000 (02:40 -0400)]
Merge branch 'maint'
* maint:
git-gui: Work around bad interaction between Tcl and cmd.exe on ^{tree}
Shawn O. Pearce [Thu, 12 Jul 2007 06:31:28 +0000 (02:31 -0400)]
git-gui: Work around bad interaction between Tcl and cmd.exe on ^{tree}
From Johannes Sixt <J.Sixt@eudaptics.com>:
> It seems that MSYS's wish does some quoting for Bourne shells,
> in particular, escape the first '{' of the "^{tree}" suffix, but
> then it uses cmd.exe to run "git rev-parse". However, cmd.exe does
> not remove the backslash, so that the resulting rev expression
> ends up in git's guts as unrecognizable garbage: rev-parse fails,
> and git-gui hickups in a way that it must be restarted.
Johannes originally submitted a patch to this section of commit.tcl
to use `git rev-parse $PARENT:`, but not all versions of Git will
accept that format. So I'm just taking the really simple approach
here of scanning the first line of the commit to grab its tree.
About the same cost, but works everywhere.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Junio C Hamano [Thu, 12 Jul 2007 05:52:45 +0000 (22:52 -0700)]
Re-code builtin-branch.c in UTF-8
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Carlos Rica [Wed, 11 Jul 2007 18:50:34 +0000 (20:50 +0200)]
Function stripspace now gets a buffer instead file descriptors.
An implementation easier to call from builtins. It is designed
to be used from the upcoming builtin-tag.c and builtin-commit.c,
because both need to remove unwanted spaces from messages.
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Thu, 12 Jul 2007 03:02:25 +0000 (22:02 -0500)]
Pack information tool
This tool will print vaguely pretty information about a pack. It
expects the output of "git-verify-pack -v" as input on stdin.
$ git-verify-pack -v | packinfo.pl
See the documentation in the script (contrib/stats/packinfo.pl)
for more information.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Tue, 10 Jul 2007 17:50:44 +0000 (18:50 +0100)]
branch --track: code cleanup and saner handling of local branches
This patch cleans up some complicated code, and replaces it with a
cleaner version, using code from remote.[ch], which got extended a
little in the process. This also enables us to fix two cases:
The earlier "fix" to setup tracking only when the original ref started
with "refs/remotes" is wrong. You are absolutely allowed to use a
separate layout for your tracking branches. The correct fix, of course,
is to set up tracking information only when there is a matching
remote.<nick>.fetch line containing a colon.
Another corner case was not handled properly. If two remotes write to
the original ref, just warn the user and do not set up tracking.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Tue, 10 Jul 2007 17:48:40 +0000 (18:48 +0100)]
Add for_each_remote() function, and extend remote_find_tracking()
The function for_each_remote() does exactly what the name
suggests.
The function remote_find_tracking() was extended to be able to
search remote refs for a given local ref. The caller sets
either src or dst (but not both) in the refspec parameter, and
remote_find_tracking() will fill in the other and return 0.
Both changes are required for the next step: simplification of
git-branch's --track functionality.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Carlos Rica [Tue, 10 Jul 2007 23:11:53 +0000 (01:11 +0200)]
t7004: Add tests for the git tag -n option.
These tests check the syntax for the git tag -n option
and its output when one, none or many lines of the
message are requested.
Also this commit adds a missing && in the test
that checks the sorted output of git tag -l.
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Carlos Rica [Tue, 10 Jul 2007 21:59:43 +0000 (23:59 +0200)]
t0030: Add tests with consecutive text lines and others with spaces added.
Previous tests only had paragraphs of one line. This commit adds some
tests to check when many consecutive text lines are given.
Also, it adds tests for checking that many lines between paragraphs are
correctly reduced to one when there are tabs and spaces in those lines.
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Carlos Rica [Tue, 10 Jul 2007 21:53:45 +0000 (23:53 +0200)]
t0030: Remove repeated instructions and add missing &&
Moved some tests to another test_expect_success block.
Many tests now reuse the same "expect" file. Also replacing
many printf "" >expect with one >expect instruction.
Added missing && which concatenated tests in some
test_expect_success blocks.
Signed-off-by: Carlos Rica <jasampler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Tue, 10 Jul 2007 13:50:49 +0000 (14:50 +0100)]
Fix --cherry-pick with given paths
If you say --cherry-pick, you do not want to see patches which are
in the upstream. If you specify paths with that, what you usually
expect is that only those parts of the patches are looked at which
actually touch the given paths.
With this patch, that expectation is met.
Noticed by Sam Vilain.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Wed, 11 Jul 2007 14:18:17 +0000 (15:18 +0100)]
Fix core.sharedRepository = 2
For compatibility reasons, "git init --shared=all" does not write
"all" into the config, but a number. In the shared setup, you
really have to support even older clients on the _same_ repository.
But git_config_perm() did not pick up on it.
Also, "git update-server-info" failed to pick up on the shared
permissions.
This patch fixes both issues, and adds a test to prove it.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Tested-by: martin f krafft <madduck@madduck.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael Hendricks [Thu, 5 Jul 2007 00:36:48 +0000 (18:36 -0600)]
gitweb: configurable width for the projects list Description column
This allows gitweb users to set $projects_list_description_width
in their gitweb.conf to determine how many characters of a project
description are displayed before being truncated with an ellipsis.
Signed-off-by: Michael Hendricks <michael@ndrix.org>
Acked-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shawn O. Pearce [Tue, 10 Jul 2007 13:51:42 +0000 (09:51 -0400)]
Correct trivial typo in fast-import documentation
Rogan Dawes noticed I meant `filerename` here and not `filename`.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Junio C Hamano [Tue, 10 Jul 2007 06:44:45 +0000 (23:44 -0700)]
Merge branch 'bd/delta'
* bd/delta:
pack-objects: Prefer shallower deltas if the size is equal
Daniel Barkalow [Tue, 10 Jul 2007 04:47:26 +0000 (00:47 -0400)]
Some cosmetic changes to remote library
Functions for managing ref lists were named based on their use in
match_refs (for push). For fetch, they will be used for other purposes, so
rename them as a separate patch to make the future code readable.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Daniel Barkalow [Tue, 10 Jul 2007 04:47:23 +0000 (00:47 -0400)]
Add allocation and freeing functions for struct refs
Instead of open-coding allocation wherever it happens, have a function.
Also, add a function to free a list of refs, which we currently never
actually do.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Matt McCutchen [Tue, 10 Jul 2007 01:30:39 +0000 (21:30 -0400)]
Makefile: rebuild git.o on version change, clean up git$X flags
Commit
334d28ae factored out git.o as an intermediate stage between
git.c and git$X. However:
- It left some no-longer-relevant flags in the rule for git$X.
- It failed to replace git$X with git.o in the list of files that
record GIT_VERSION. This broke incorporation of a changed
GIT_VERSION into git$X because, when GIT_VERSION changes, git.o isn't
remade and git$X is relinked from the git.o that still contains the
old GIT_VERSION.
This patch removes the irrelevant flags and fixes incorporation of a
changed GIT_VERSION into git$X.
Signed-off-by: Matt McCutchen <hashproduct@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Mon, 9 Jul 2007 13:47:24 +0000 (14:47 +0100)]
rerere: record resolution even if file is not in merge base
Two-file merges were rare enough that they were dropped outside of the
radar. This fix is a trivial change to builtin-rerere.c::find_conflict().
It is still sane to insist that we do not do rerere for symlinks, and
require to have stages #2 and #3, but we can drop the requirement to have
stage #1. rerere does not use information from there anyway.
This fix is from Junio, together with two tests to verify that it works
as expected.
Acked-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shawn O. Pearce [Tue, 10 Jul 2007 02:58:23 +0000 (22:58 -0400)]
Support wholesale directory renames in fast-import
Some source material (e.g. Subversion dump files) perform directory
renames without telling us exactly which files in that subdirectory
were moved. This makes it hard for a frontend to convert such data
formats to a fast-import stream, as all the frontend has on hand
is "Rename a/ to b/" with no details about what files are in a/,
unless the frontend also kept track of all files.
The new 'R' subcommand within a commit allows the frontend to
rename either a file or an entire subdirectory, without needing to
know the object's SHA-1 or the specific files contained within it.
The rename is performed as efficiently as possible internally,
making it cheaper than a 'D'/'M' pair for a file rename.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Tue, 10 Jul 2007 01:28:27 +0000 (21:28 -0400)]
Merge branch 'maint'
* maint:
Clarify documentation of fast-import's D subcommand
Shawn O. Pearce [Tue, 10 Jul 2007 01:27:55 +0000 (21:27 -0400)]
Clarify documentation of fast-import's D subcommand
The 'D' subcommand within a commit can also delete a directory
recursively. This wasn't clear in the prior version of the
documentation, leading to a question on the mailing list.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Mon, 9 Jul 2007 15:10:26 +0000 (11:10 -0400)]
git-gui: Include a space in Cygwin shortcut command lines
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Mon, 9 Jul 2007 15:09:27 +0000 (11:09 -0400)]
git-gui: Use sh.exe in Cygwin shortcuts
Because we are trying to execute /bin/sh we know it must be a real
Windows executable and thus ends with the standard .exe suffix.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Mon, 9 Jul 2007 15:01:02 +0000 (11:01 -0400)]
git-gui: Paper bag fix for Cygwin shortcut creation
We cannot execute the git directory, it is not a valid Tcl command
name. Instead we just want to pass it as an argument to our sq
proc.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Tue, 10 Jul 2007 01:19:13 +0000 (21:19 -0400)]
Merge branch 'maint'
* maint:
git-gui: Don't linewrap within console windows
git-gui: Correct ls-tree buffering problem in browser
Shawn O. Pearce [Mon, 9 Jul 2007 15:14:00 +0000 (11:14 -0400)]
git-gui: Don't linewrap within console windows
If we get more than 80 characters of text in a single line odds
are it is output from git-fetch or git-push and its showing a
lot of detail off to the right edge that is not so important to
the average user. We still want to make sure we show everything
we need, but we can get away with that information being off to
the side with a horizontal scrollbar.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Mon, 9 Jul 2007 15:55:45 +0000 (11:55 -0400)]
git-gui: Correct ls-tree buffering problem in browser
Our file browser was showing bad output as it did not properly buffer
a partial record when read from `ls-tree -z`. This did not show up on
my Mac OS X system as most trees are small, the pipe buffers generally
big and `ls-tree -z` was generally fast enough that all data was ready
before Tcl started to read. However on my Cygwin system one of my
production repositories had a large enough tree and packfile that it
took a couple of pipe buffers for `ls-tree -z` to complete its dump.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Paul Mackerras [Mon, 9 Jul 2007 12:45:47 +0000 (22:45 +1000)]
gitk: Use git log and add support for --left-right
This is based on patches from Linus Torvalds and Junio Hamano, so the
ideas here are theirs.
This makes gitk use "git log -z --pretty=raw" instead of "git rev-list"
to generate the list of commits, and also makes it grok the "<" and ">"
markers that git log (and git rev-list) output with the --left-right
flag to indicate which side of a symmetric diff a commit is reachable
from. Left-side commits are drawn with a triangle pointing leftwards
instead of a circle, and right-side commits are drawn with a triangle
pointing rightwards. The commitlisted list is used to store the
left/right information as well as the information about whether each
commit is on the boundary.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 9 Jul 2007 12:29:24 +0000 (22:29 +1000)]
gitk: Fix bug causing "can't read commitrow(0,n)" error
In commit
66e46f37de3ed3211a8ae0e8fc09c063bc3a1e08 I changed gitk to
store ids in rowrangelist and idrowranges rather than row numbers,
but I missed two places in the layouttail procedure. This resulted
in occasional errors such as the "can't read "commitrow(0,8572)":
no such element in array" error reported by Mark Levedahl. This fixes
it by using the id rather than the row number.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brian Downing [Thu, 5 Jul 2007 11:33:02 +0000 (06:33 -0500)]
[PATCH] gitk: Fix for tree view ending in nested directories
Unroll the prefix stack when assigning treeheights when leaving
proc treeview. Previously, when the ls-tree output ended in
multiple nested directories (for instance in a repository with a
single file "foo/bar/baz"), $treeheight("foo/bar/") was assigned
twice, and $treeheight("foo/") was never assigned. This led to
an error when expanding the "foo" directory in the gitk treeview.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Shawn O. Pearce [Mon, 9 Jul 2007 07:28:41 +0000 (03:28 -0400)]
git-gui: Improve the Windows and Mac OS X shortcut creators
We now embed any GIT_* and SSH_* environment variables as well as
the path to the git wrapper executable into the Mac OS X .app file.
This should allow us to restore the environment properly when
we restart.
We also try to use proper Bourne shell single quoting when we can,
as this avoids any sort of problems that might occur due to a path
containing shell metacharacters.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce [Mon, 9 Jul 2007 07:07:05 +0000 (03:07 -0400)]
git-gui: Teach console widget to use git_read
Now that we are pretty strict about setting up own absolute paths to
any git helper (saving a marginal runtime cost to resolve the tool)
we can do the same in our console widget by making sure all console
execs go through git_read if they are a git subcommand, and if not
make sure they at least try to use the Tcl 2>@1 IO redirection if
possible, as it should be faster than |& cat.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Brian Downing [Mon, 9 Jul 2007 04:45:21 +0000 (23:45 -0500)]
pack-objects: Prefer shallower deltas if the size is equal
Change "try_delta" so that if it finds a delta that has the same size
but shallower depth than the existing delta, it will prefer the
shallower one. This makes certain delta trees vastly less deep.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shawn O. Pearce [Mon, 9 Jul 2007 06:47:33 +0000 (02:47 -0400)]
git-gui: Perform our own magic shbang detection on Windows
If we cannot locate a .exe for a git tool that we want to run than
it may just be a Bourne shell script as these are popular in Git.
In such a case the first line of the file will say "#!/bin/sh" so
a UNIX kernel knows what program to start to parse and run that.
But Windows doesn't support shbang lines, and neither does the Tcl
that comes with Cygwin.
We can pass control off to the git wrapper as that is a real Cygwin
program and can therefore start the Bourne shell script, but that is
at least two fork+exec calls to get the program running. One to do
the fork+exec of the git wrapper and another to start the Bourne shell
script. If the program is run multiple times it is rather expensive
as the magic shbang detection won't be cached across executions.
On MinGW/MSYS we don't have the luxury of such magic detection. The
MSYS team has taught some of this magic to the git wrapper, but again
its slower than it needs to be as the git wrapper must still go and
run the Bourne shell after it is called.
We now attempt to guess the shbang line on Windows by reading the
first line of the file and building our own command line path from
it. Currently we support Bourne shell (sh), Perl and Python. That
is the entire set of shbang lines that appear in git.git today.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>