Junio C Hamano [Sun, 25 Nov 2007 02:03:20 +0000 (18:03 -0800)]
Merge branch 'lt/maint-rev-list-gitlink' into maint
* lt/maint-rev-list-gitlink:
Fix rev-list when showing objects involving submodules
Junio C Hamano [Sun, 25 Nov 2007 02:03:04 +0000 (18:03 -0800)]
Merge branch 'jc/maint-add-sync-stat' into maint
* jc/maint-add-sync-stat:
t2200: test more cases of "add -u"
git-add: make the entry stat-clean after re-adding the same contents
ce_match_stat, run_diff_files: use symbolic constants for readability
Junio C Hamano [Sun, 25 Nov 2007 02:02:30 +0000 (18:02 -0800)]
Merge branch 'jc/maint-format-patch-encoding' into maint
* jc/maint-format-patch-encoding:
test format-patch -s: make sure MIME content type is shown as needed
format-patch -s: add MIME encoding header if signer's name requires so
Junio C Hamano [Sun, 25 Nov 2007 02:01:46 +0000 (18:01 -0800)]
Merge branch 'bs/maint-t7005' into maint
* bs/maint-t7005:
t7005-editor.sh: Don't invoke real vi when it is in GIT_EXEC_PATH
Junio C Hamano [Sun, 25 Nov 2007 01:54:08 +0000 (17:54 -0800)]
Merge branch 'bs/maint-commit-options' into maint
* bs/maint-commit-options:
git-commit: Add tests for invalid usage of -a/--interactive with paths
git-commit.sh: Fix usage checks regarding paths given when they do not make sense
Junio C Hamano [Fri, 23 Nov 2007 07:25:19 +0000 (23:25 -0800)]
Fix sample pre-commit hook
If the worktree happened to have a file called HEAD, "diff-index --cached HEAD"
would complain about the ambiguity between revision and path. Avoid it by
using an explicit "--" for disambiguation.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Fri, 23 Nov 2007 00:48:55 +0000 (16:48 -0800)]
Make test scripts executable.
Johannes Schindelin [Thu, 22 Nov 2007 12:24:59 +0000 (12:24 +0000)]
bundle create: keep symbolic refs' names instead of resolving them
When creating a bundle, symbolic refs used to be resolved to the
non-symbolic refs they point to before being written to the list
of contained refs. I.e. "git bundle create a1.bundle HEAD master"
would show something like
388afe7881b33102fada216dd07806728773c011 refs/heads/master
388afe7881b33102fada216dd07806728773c011 refs/heads/master
instead of
388afe7881b33102fada216dd07806728773c011 HEAD
388afe7881b33102fada216dd07806728773c011 refs/heads/master
Introduce a special handling so that the symbolic refs are listed
with the names passed on the command line.
Noticed by Santi Béjar.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Tue, 20 Nov 2007 12:54:04 +0000 (07:54 -0500)]
send-email: add transfer encoding header with content-type
We add the content-type header only when we have non-7bit
characters from the 'From' header, so we really need to
specify the encoding (in other cases, where the commit text
needed a content-type, git-format-patch will already have
added the encoding header).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Matthieu Moy [Mon, 19 Nov 2007 18:25:11 +0000 (19:25 +0100)]
Doc fix for git-reflog: mention @{...} syntax, and <ref> in synopsys.
The HEAD@{...} syntax was documented in git-rev-parse manpage, which
is hard to find by someone looking for the documentation of porcelain.
git-reflog is probably the place where one expects to find this.
While I'm there, "git revlog show whatever" was also undocumented.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brian Downing [Mon, 19 Nov 2007 16:58:51 +0000 (10:58 -0600)]
config: clarify compression defaults
* Clarify that core.compression provides a system-wide default to
other compression parameters.
* Explain that the default for pack.compression, -1, is "a default
compromise between speed and compression (currently equivalent
to level 6)" according to zlib.h.
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 [Mon, 19 Nov 2007 16:58:50 +0000 (10:58 -0600)]
config: correct core.loosecompression documentation
* core.loosecompression stated that the default was "0 (best speed)",
when in fact 0 is "no compression", and the default is Z_BEST_SPEED,
which is 1.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 19 Nov 2007 07:56:01 +0000 (23:56 -0800)]
Merge branch 'maint' of git://linux-nfs.org/~bfields/git into maint
* 'maint' of git://linux-nfs.org/~bfields/git:
Documentation: Fix references to deprecated commands
user-manual: mention "..." in "Generating diffs", etc.
user-manual: Add section "Why bisecting merge commits can be harder ..."
git-remote.txt: fix example url
J. Bruce Fields [Mon, 19 Nov 2007 01:50:57 +0000 (20:50 -0500)]
Documentation: Fix references to deprecated commands
... by changing git-tar-tree reference to git-archive and removing
seemingly unrelevant footnote about git-ssh-{fetch,upload}.
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
J. Bruce Fields [Mon, 19 Nov 2007 00:18:27 +0000 (19:18 -0500)]
user-manual: mention "..." in "Generating diffs", etc.
We should mention the use of the "..." syntax for git-diff here. The
note about the difference between diff and the combined output of
git-format-patch then no longer fits so well, so remove it. Add a
reference to the git-format-patch[1] manpage.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Steffen Prohaska [Sat, 10 Nov 2007 13:49:54 +0000 (14:49 +0100)]
user-manual: Add section "Why bisecting merge commits can be harder ..."
This commit adds a discussion of the challenge of bisecting
merge commits to the user manual. The original author is
Junio C Hamano <gitster@pobox.com>, who posted the text to
the mailing list <http://marc.info/?l=git&m=
119403257315527&w=2>.
His email was adapted for the manual.
The discussion is added to "Rewriting history and maintainig
patch series". The text added requires good understanding of
merging and rebasing. Therefore it should not be placed too
early in the manual. Right after the section on "Problems with
rewriting history", the discussion of bisect gives another reason
for linearizing as much of the history as possible.
The text includes suggestions and fixes by
Ralf Wildenhues <Ralf.Wildenhues@gmx.de> and
Benoit Sigoure <tsuna@lrde.epita.fr>.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Junio C Hamano [Sun, 18 Nov 2007 22:00:38 +0000 (14:00 -0800)]
GIT 1.5.3.6
Junio C Hamano [Sun, 18 Nov 2007 05:18:14 +0000 (21:18 -0800)]
grep -An -Bm: fix invocation of external grep command
When building command line to invoke external grep, the
arguments to -A/-B/-C options were placd in randarg[] buffer,
but the code forgot that snprintf() does not count terminating
NUL in its return value. This caused "git grep -A1 -B2" to
invoke external grep with "-B21 -A1".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
J. Bruce Fields [Sat, 3 Nov 2007 02:54:31 +0000 (22:54 -0400)]
git-remote.txt: fix example url
If I'm going to use a real example as a URL, I suppose I should get it
right....
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Linus Torvalds [Sun, 11 Nov 2007 23:35:23 +0000 (23:35 +0000)]
Fix rev-list when showing objects involving submodules
The function mark_tree_uninteresting() assumed that the tree entries
are blob when they are not trees. This is not so. Since we do
not traverse into submodules (yet), the gitlinks should be ignored.
In general, we should try to start moving away from using the
"S_ISLNK()" like things for internal git state. It was a mistake to
just assume the numbers all were same across all systems in the first
place. This implementation converts to the "object_type", and then
uses a case statement.
Noticed by Ilari on IRC.
Test script taken from an earlier version by Dscho.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 17 Nov 2007 02:44:06 +0000 (18:44 -0800)]
Update draft release notes for 1.5.3.6
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 17 Nov 2007 05:14:17 +0000 (21:14 -0800)]
Merge branch 'ds/maint-deflatebound' into maint
* ds/maint-deflatebound:
Improve accuracy of check for presence of deflateBound.
Junio C Hamano [Fri, 16 Nov 2007 09:15:41 +0000 (01:15 -0800)]
Fix per-directory exclude handing for "git add"
In "dir_struct", each exclusion element in the exclusion stack records a
base string (pointer to the beginning with length) so that we can tell
where it came from, but this pointer is just pointing at the parameter
that is given by the caller to the push_exclude_per_directory()
function.
While read_directory_recursive() runs, calls to excluded() makes use
the data in the exclusion elements, including this base string. The
caller of read_directory_recursive() is not supposed to free the
buffer it gave to push_exclude_per_directory() earlier, until it
returns.
The test case Bruce Stephens gave in the mailing list discussion
was simplified and added to the t3700 test.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 17 Nov 2007 01:05:02 +0000 (17:05 -0800)]
core.excludesfile clean-up
There are inconsistencies in the way commands currently handle
the core.excludesfile configuration variable. The problem is
the variable is too new to be noticed by anything other than
git-add and git-status.
* git-ls-files does not notice any of the "ignore" files by
default, as it predates the standardized set of ignore files.
The calling scripts established the convention to use
.git/info/exclude, .gitignore, and later core.excludesfile.
* git-add and git-status know about it because they call
add_excludes_from_file() directly with their own notion of
which standard set of ignore files to use. This is just a
stupid duplication of code that need to be updated every time
the definition of the standard set of ignore files is
changed.
* git-read-tree takes --exclude-per-directory=<gitignore>,
not because the flexibility was needed. Again, this was
because the option predates the standardization of the ignore
files.
* git-merge-recursive uses hardcoded per-directory .gitignore
and nothing else. git-clean (scripted version) does not
honor core.* because its call to underlying ls-files does not
know about it. git-clean in C (parked in 'pu') doesn't either.
We probably could change git-ls-files to use the standard set
when no excludes are specified on the command line and ignore
processing was asked, or something like that, but that will be a
change in semantics and might break people's scripts in a subtle
way. I am somewhat reluctant to make such a change.
On the other hand, I think it makes perfect sense to fix
git-read-tree, git-merge-recursive and git-clean to follow the
same rule as other commands. I do not think of a valid use case
to give an exclude-per-directory that is nonstandard to
read-tree command, outside a "negative" test in the t1004 test
script.
This patch is the first step to untangle this mess.
The next step would be to teach read-tree, merge-recursive and
clean (in C) to use setup_standard_excludes().
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Wincent Colaiuta [Fri, 16 Nov 2007 13:25:10 +0000 (14:25 +0100)]
Fix t9101 test failure caused by Subversion "auto-props"
If a user has an "auto-prop" in his/her ~/.subversion/config file for
automatically setting the svn:keyword Id property on all ".c" files
(a reasonably common configuration in the Subversion world) then one
of the "svn propset" operations in the very first test would become a
no-op, which in turn would make the next commit a no-op.
This then caused the 25th test ('test propget') to fail because it
expects a certain number of commits to have taken place but the actual
number of commits was off by one.
Björn Steinbrink identified the "auto-prop" feature as the cause
of the failure. This patch avoids it by passing the "--no-auto-prop"
flag to "svn import" when setting up the test repository, thus ensuring
that the "svn propset" operation is no longer a no-op, regardless of the
users' settings in their config.
Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Fri, 16 Nov 2007 10:49:09 +0000 (05:49 -0500)]
git-send-email: add charset header if we add encoded 'From'
We sometimes pick out the original rfc822 'From' header and
include it in the body of the message. If the original
author's name needs encoding, then we should specify that in
the content-type header.
If we already had a content-type header in the mail, then we
may need to re-encode. The logic is there to detect
this case, but it doesn't actually do the re-encoding.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 14 Nov 2007 09:54:43 +0000 (01:54 -0800)]
git-clean: honor core.excludesfile
git-clean did not honor core.excludesfile configuration
variable, although some other commands such as git-add and
git-status did. Fix this inconsistency.
Original report and patch from Shun'ichi Fuji. Rewritten by me
and bugs and tests are mine.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jonas Fonseca [Wed, 14 Nov 2007 09:38:46 +0000 (10:38 +0100)]
Documentation: Fix man page breakage with DocBook XSL v1.72
From version 1.72 it will replace all dots in roff requests with U+2302
("house" character), and add escaping in output for all instances of dot
that are not in roff requests. This caused the ".ft" hack forcing
monospace font in listingblocks to end up as "\&.ft" and being visible
in the resulting man page.
The fix adds a DOCBOOK_XSL_172 build variable that will disable the
hack. To allow this variable to be defined in config.mak it also moves
build variable handling below the inclusion of config.mak.
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Tue, 13 Nov 2007 18:17:47 +0000 (21:17 +0300)]
git-remote.txt: fix typo
Signed-off-by: Sergei Organov <osv@javad.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Sat, 10 Nov 2007 13:17:33 +0000 (16:17 +0300)]
core-tutorial.txt: Fix argument mistake in an example.
One of examples has wrong output given the arguments provided.
Fix arguments to match the output.
Fix a minor syntax mistake in another place.
Signed-off-by: Sergei Organov <osv@javad.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jing Xue [Mon, 12 Nov 2007 04:43:00 +0000 (23:43 -0500)]
replace reference to git-rm with git-reset in git-commit doc
The message in git-commit suggesting to use 'git rm --cached'
to unstage is just plain wrong. It really should mention 'git reset'.
Suggested by Jan Hudec.
Signed-off-by: Jing Xue <jingxue@digizenstudio.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Wincent Colaiuta [Wed, 14 Nov 2007 07:51:41 +0000 (08:51 +0100)]
Grammar fixes for gitattributes documentation
Tweak the "filter" section of the gitattributes documentation to add
some
missing articles and improve some word choices without changing the
semantics of the section.
Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shawn O. Pearce [Wed, 14 Nov 2007 04:48:42 +0000 (23:48 -0500)]
Don't allow fast-import tree delta chains to exceed maximum depth
Brian Downing noticed fast-import can produce tree depths of up
to 6,035 objects and even deeper. Long delta chains can create
very small packfiles but cause problems during repacking as git
needs to unpack each tree to count the reachable blobs.
What's happening here is the active branch cache isn't big enough.
We're swapping out the branch and thus recycling the tree information
(struct tree_content) back into the free pool. When we later reload
the tree we set the delta_depth to 0 but we kept the tree we just
reloaded as a delta base.
So if the tree we reloaded was already at the maximum depth we
wouldn't know it and make the new tree a delta. Multiply the
number of times the branch cache has to swap out the tree times
max_depth (10) and you get the maximum delta depth of a tree created
by fast-import. In Brian's case above the active branch cache had
to swap the branch out 603/604 times during this import to produce
a tree with a delta depth of 6035.
Acked-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 13 Nov 2007 20:28:53 +0000 (12:28 -0800)]
revert/cherry-pick: allow starting from dirty work tree.
There is no reason to forbid a dirty work tree when reverting or
cherry-picking a change, as long as the index is clean.
The scripted version used to allow it:
case "$no_commit" in
t)
# We do not intend to commit immediately. We just want to
# merge the differences in.
head=$(git-write-tree) ||
die "Your index file is unmerged."
;;
*)
head=$(git-rev-parse --verify HEAD) ||
die "You do not have a valid HEAD"
files=$(git-diff-index --cached --name-only $head) || exit
if [ "$files" ]; then
die "Dirty index: cannot $me (dirty: $files)"
fi
;;
esac
but C rewrite tightened the check, probably by mistake.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 13 Nov 2007 21:05:50 +0000 (13:05 -0800)]
t/t3404: fix test for a bogus todo file.
The test wants to see if there are still remaining tasks, but checked
a wrong file.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Björn Steinbrink [Mon, 12 Nov 2007 15:15:39 +0000 (16:15 +0100)]
git-commit: Add tests for invalid usage of -a/--interactive with paths
git-commit was/is broken in that it accepts paths together with -a or
--interactive, which it shouldn't. There tests check those usage errors.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 12 Nov 2007 08:00:00 +0000 (00:00 -0800)]
Merge branch 'sp/maint-plug-traverse-commit-list-leak' into maint
* sp/maint-plug-traverse-commit-list-leak:
Fix memory leak in traverse_commit_list
Christian Couder [Mon, 12 Nov 2007 04:37:25 +0000 (05:37 +0100)]
for-each-ref: fix off by one read.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Mon, 12 Nov 2007 04:07:05 +0000 (23:07 -0500)]
git-branch: remove mention of non-existent '-b' option
This looks like a cut and paste error from the git-checkout
explanation of --no-track.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Benoit Sigoure [Sun, 11 Nov 2007 18:41:41 +0000 (19:41 +0100)]
git-svn: prevent dcommitting if the index is dirty.
dcommit uses rebase to sync the history with what has just been pushed to
SVN. Trying to dcommit with a dirty index is troublesome for rebase, so now
the user will get an error message if he attempts to dcommit with a dirty
index.
Signed-off-by: Benoit Sigoure <tsuna@lrde.epita.fr>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 12 Nov 2007 02:44:16 +0000 (18:44 -0800)]
t2200: test more cases of "add -u"
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Björn Steinbrink [Sun, 11 Nov 2007 17:38:11 +0000 (18:38 +0100)]
t7005-editor.sh: Don't invoke real vi when it is in GIT_EXEC_PATH
The git wrapper executable always prepends the GIT_EXEC_PATH build
variable to the current PATH, so prepending "." to the PATH is not
enough to give precedence to the fake vi executable.
The --exec-path option allows to prepend a directory to PATH even before
GIT_EXEC_PATH (which is added anyway), so we can use that instead.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Sun, 11 Nov 2007 04:29:10 +0000 (23:29 -0500)]
fix index-pack with packs >4GB containing deltas on 32-bit machines
This probably hasn't been properly tested before. Here's a script to
create a 8GB repo with the necessary characteristics (copy the
test-genrandom executable from the Git build tree to /tmp first):
-----
#!/bin/bash
git init
git config core.compression 0
# create big objects with no deltas
for i in $(seq -w 1 2 63)
do
echo $i
/tmp/test-genrandom $i
268435456 > file_$i
git add file_$i
rm file_$i
echo "file_$i -delta" >> .gitattributes
done
# create "deltifiable" objects in between big objects
for i in $(seq -w 2 2 64)
do
echo "$i $i $i" >> grow
cp grow file_$i
git add file_$i
rm file_$i
done
rm grow
# create a pack with them
git commit -q -m "commit of big objects interlaced with small deltas"
git repack -a -d
-----
Then clone this repo over the Git protocol.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Sat, 10 Nov 2007 20:00:33 +0000 (15:00 -0500)]
git-hash-object should honor config variables
... such as core.compression.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Vincent Zanotti [Sat, 10 Nov 2007 18:55:27 +0000 (19:55 +0100)]
gitweb: correct month in date display for atom feeds
Signed-off-by: Vincent Zanotti <vincent.zanotti@m4x.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Shawn O. Pearce [Fri, 9 Nov 2007 11:06:10 +0000 (06:06 -0500)]
Fix memory leak in traverse_commit_list
If we were listing objects too then the objects were buffered in an
array only reachable from a stack allocated structure. When this
function returns that array would be leaked as nobody would have
a reference to it anymore.
Historically this hasn't been a problem as the primary user of
traverse_commit_list() (the noble git-rev-list) would terminate
as soon as the function was finished, thus allowing the operating
system to cleanup memory. However we have been leaking this data
in git-pack-objects ever since that program learned how to run the
revision listing internally, rather than relying on reading object
names from git-rev-list.
To better facilitate reuse of traverse_commit_list during other
builtin tools (such as git-fetch) we shouldn't leak temporary memory
like this and instead we need to clean up properly after ourselves.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 10 Nov 2007 02:22:52 +0000 (18:22 -0800)]
git-add: make the entry stat-clean after re-adding the same contents
Earlier in commit
0781b8a9b2fe760fc4ed519a3a26e4b9bd6ccffe
(add_file_to_index: skip rehashing if the cached stat already
matches), add_file_to_index() were taught not to re-add the path
if it already matches the index.
The change meant well, but was not executed quite right. It
used ie_modified() to see if the file on the work tree is really
different from the index, and skipped adding the contents if the
function says "not modified".
This was wrong. There are three possible comparison results
between the index and the file in the work tree:
- with lstat(2) we _know_ they are different. E.g. if the
length or the owner in the cached stat information is
different from the length we just obtained from lstat(2), we
can tell the file is modified without looking at the actual
contents.
- with lstat(2) we _know_ they are the same. The same length,
the same owner, the same everything (but this has a twist, as
described below).
- we cannot tell from lstat(2) information alone and need to go
to the filesystem to actually compare.
The last case arises from what we call 'racy git' situation,
that can be caused with this sequence:
$ echo hello >file
$ git add file
$ echo aeiou >file ;# the same length
If the second "echo" is done within the same filesystem
timestamp granularity as the first "echo", then the timestamp
recorded by "git add" and the timestamp we get from lstat(2)
will be the same, and we can mistakenly say the file is not
modified. The path is called 'racily clean'. We need to
reliably detect racily clean paths are in fact modified.
To solve this problem, when we write out the index, we mark the
index entry that has the same timestamp as the index file itself
(that is the time from the point of view of the filesystem) to
tell any later code that does the lstat(2) comparison not to
trust the cached stat info, and ie_modified() then actually goes
to the filesystem to compare the contents for such a path.
That's all good, but it should not be used for this "git add"
optimization, as the goal of "git add" is to actually update the
path in the index and make it stat-clean. With the false
optimization, we did _not_ cause any data loss (after all, what
we failed to do was only to update the cached stat information),
but it made the following sequence leave the file stat dirty:
$ echo hello >file
$ git add file
$ echo hello >file ;# the same contents
$ git add file
The solution is not to use ie_modified() which goes to the
filesystem to see if it is really clean, but instead use
ie_match_stat() with "assume racily clean paths are dirty"
option, to force re-adding of such a path.
There was another problem with "git add -u". The codepath
shares the same issue when adding the paths that are found to be
modified, but in addition, it asked "git diff-files" machinery
run_diff_files() function (which is "git diff-files") to list
the paths that are modified. But "git diff-files" machinery
uses the same ie_modified() call so that it does not report
racily clean _and_ actually clean paths as modified, which is
not what we want.
The patch allows the callers of run_diff_files() to pass the
same "assume racily clean paths are dirty" option, and makes
"git-add -u" codepath to use that option, to discover and re-add
racily clean _and_ actually clean paths.
We could further optimize on top of this patch to differentiate
the case where the path really needs re-adding (i.e. the content
of the racily clean entry was indeed different) and the case
where only the cached stat information needs to be refreshed
(i.e. the racily clean entry was actually clean), but I do not
think it is worth it.
This patch applies to maint and all the way up.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 10 Nov 2007 08:15:03 +0000 (00:15 -0800)]
ce_match_stat, run_diff_files: use symbolic constants for readability
ce_match_stat() can be told:
(1) to ignore CE_VALID bit (used under "assume unchanged" mode)
and perform the stat comparison anyway;
(2) not to perform the contents comparison for racily clean
entries and report mismatch of cached stat information;
using its "option" parameter. Give them symbolic constants.
Similarly, run_diff_files() can be told not to report anything
on removed paths. Also give it a symbolic constant for that.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Fri, 9 Nov 2007 19:33:54 +0000 (14:33 -0500)]
print warning/error/fatal messages in one shot
Not doing so is likely to create a messed up display when sent over the
sideband protocol.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Fri, 9 Nov 2007 08:17:26 +0000 (00:17 -0800)]
Start preparing for 1.5.3.6
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Benoit Sigoure [Thu, 8 Nov 2007 18:56:28 +0000 (19:56 +0100)]
git-send-email: Change the prompt for the subject of the initial message.
I never understood what this prompt was asking for until I read the actual
source code. I think this wording is much more understandable.
Signed-off-by: Benoit Sigoure <tsuna@lrde.epita.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Thu, 8 Nov 2007 16:40:25 +0000 (19:40 +0300)]
SubmittingPatches: improve the 'Patch:' section of the checklist
There were 2 items "send patch to..." but having different set of
addresses to send patch to. Merge them together and move the resulting
item to the end of checklist.
Signed-off-by: Sergei Organov <osv@javad.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jonas Fonseca [Thu, 8 Nov 2007 23:21:42 +0000 (00:21 +0100)]
instaweb: Minor cleanups and fixes for potential problems
Fix path quoting and test of empty values that some shells do not like.
Remove duplicate check and setting of $browser.
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Alex Riesen [Thu, 8 Nov 2007 23:41:39 +0000 (00:41 +0100)]
stop t1400 hiding errors in tests
The last rm in the test was lacking an "&&" before it,
which caused the errors in the commands be silently hidden.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Fri, 9 Nov 2007 00:41:56 +0000 (16:41 -0800)]
Makefile: add missing dependency on wt-status.h
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Fri, 9 Nov 2007 00:24:00 +0000 (16:24 -0800)]
refresh_index_quietly(): express "optional" nature of index writing better
The point of the part of the code this patch touches is that if
we modified the active_cache, we try to write it out and make it
the index file for later users to use by calling
"commit_locked_index", but we do not really care about the
failure from this sequence because it is done purely as an
optimization.
The original code called three functions primarily for their
side effects but as condition of an if statement, which is
admittedly a bad style.
Incidentally, it squelches an "empty if body" warning from gcc.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ralf Wildenhues [Thu, 8 Nov 2007 21:48:49 +0000 (22:48 +0100)]
Fix sed string regex escaping in module_name.
When escaping a string to be used as a sed regex, it is important
to only escape active characters. Escaping other characters is
undefined according to POSIX, and in practice leads to issues with
extensions such as GNU sed's \+.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ralf Wildenhues [Thu, 8 Nov 2007 21:47:36 +0000 (22:47 +0100)]
Avoid a few unportable, needlessly nested "...`...".
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Gerrit Pape [Tue, 6 Nov 2007 08:54:18 +0000 (08:54 +0000)]
git-mailsplit: with maildirs not only process cur/, but also new/
When saving patches to a maildir with e.g. mutt, the files are put into
the new/ subdirectory of the maildir, not cur/. This makes git-am state
"Nothing to do.". This patch lets git-mailsplit additional check new/
after reading cur/.
This was reported by Joey Hess through
http://bugs.debian.org/447396
Signed-off-by: Gerrit Pape <pape@smarden.org>
Acked-by: Jeff King <peff@peff.net>
Acked-by: Alex Riesen <raa.lkml@gmail.com>
Acked-by: Fernando J. Pereda <ferdy@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Sat, 3 Nov 2007 00:55:31 +0000 (17:55 -0700)]
test format-patch -s: make sure MIME content type is shown as needed
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 31 Oct 2007 21:55:17 +0000 (14:55 -0700)]
format-patch -s: add MIME encoding header if signer's name requires so
When the body of the commit log message contains a non-ASCII character,
format-patch correctly emitted the encoding header to mark the resulting
message as such. However, if the original message was fully ASCII, the
command line switch "-s" was given to add a new sign-off, and
the signer's name was not ASCII only, the resulting message would have
contained non-ASCII character but was not marked as such.
This was cherry-picked from the fix in 'master'
Signed-off-by: Junio C Hamano <gitster@pobox.com>
David Symonds [Wed, 7 Nov 2007 03:24:28 +0000 (14:24 +1100)]
Improve accuracy of check for presence of deflateBound.
ZLIB_VERNUM isn't defined in some zlib versions, so this patch does a proper
linking test in autoconf to see whether deflateBound exists in zlib. Also,
setting NO_DEFLATE_BOUND will also work for folk not using autoconf.
Signed-off-by: David Symonds <dsymonds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Johannes Schindelin [Thu, 8 Nov 2007 00:33:19 +0000 (00:33 +0000)]
Add Documentation/CodingGuidelines
Even if our code is quite a good documentation for our coding style,
some people seem to prefer a document describing it.
The part about the shell scripts is clearly just copied from one of
Junio's helpful mails, and some parts were added from comments by
Junio, Andreas Ericsson and Robin Rosenberg.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ask Bjørn Hansen [Tue, 6 Nov 2007 10:54:01 +0000 (02:54 -0800)]
When exec() fails include the failing command in the error message
git-svn occasionally fails with no details as to what went wrong - this should help debug those situations.
Signed-off-by: Ask Bjørn Hansen <ask@develooper.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
David D Kilzer [Sun, 4 Nov 2007 12:45:22 +0000 (04:45 -0800)]
RelNotes-1.5.3.5: fix another typo
Signed-off-by: David D Kilzer <ddkilzer@kilzer.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Björn Steinbrink [Mon, 5 Nov 2007 19:36:33 +0000 (20:36 +0100)]
git-commit.sh: Fix usage checks regarding paths given when they do not make sense
The checks that looked for paths given to git-commit in addition to
--all or --interactive expected only 3 values, while the case statement
actually provides 4, so the check was never triggered.
The bug was introduced in
6cbf07efc5702351897dee4742525c9b9f7828ac when
the case statement was extended to handle --interactive.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Marco Costalba [Sun, 4 Nov 2007 14:35:26 +0000 (15:35 +0100)]
Remove a couple of duplicated include
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 6 Nov 2007 01:16:47 +0000 (17:16 -0800)]
grep with unmerged index
We called flush_grep() every time we saw an unmerged entry in
the index. If we happen to find an unmerged entry before we saw
more than two paths, we incorrectly declared that the user had
too many non-paths options in front.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 6 Nov 2007 02:56:55 +0000 (18:56 -0800)]
Merge branch 'gp/maint-diffdoc' into maint
* gp/maint-diffdoc:
git-diff.txt: add section "output format" describing the diff formats
Gerrit Pape [Mon, 5 Nov 2007 09:16:22 +0000 (09:16 +0000)]
git-daemon: fix remote port number in log entry
The port number in struct sockaddr_in needs to be converted from network
byte order to host byte order (on some architectures).
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Eric Wong [Mon, 5 Nov 2007 11:21:48 +0000 (03:21 -0800)]
git-svn: t9114: verify merge commit message in test
It's possible that we end up with an incorrect commit message
in this test after making changes to fix the clobber bug
in dcommit.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Eric Wong [Mon, 5 Nov 2007 11:21:47 +0000 (03:21 -0800)]
git-svn: fix dcommit clobbering when committing a series of diffs
Our revision number sent to SVN is set to the last revision we
committed if we've made any previous commits in a dcommit
invocation.
Although our SVN Editor code uses the delta of two (old) trees
to generate information to send upstream, it'll still send
complete resultant files upstream; even if the tree they're
based against is out-of-date.
The combination of sending a file that does not include the
latest changes, but set with a revision number of a commit we
just made will cause SVN to accept the resultant file even if it
was generated against an old tree.
More trouble was caused when fixing this because we were
rebasing uncessarily at times. We used git-diff-tree to check
the imported SVN revision against our HEAD, not the last tree we
committed to SVN. The unnecessary rebasing caused merge commits
upstream to SVN to fail.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
David D Kilzer [Sat, 3 Nov 2007 14:04:52 +0000 (07:04 -0700)]
RelNotes-1.5.3.5: fix typo
Signed-off-by: David D Kilzer <ddkilzer@kilzer.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Mike Hommey [Sat, 3 Nov 2007 12:22:53 +0000 (13:22 +0100)]
Delay pager setup in git blame
This avoids to launch the pager when git blame fails for any reason.
Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Gerrit Pape [Sat, 3 Nov 2007 11:55:02 +0000 (11:55 +0000)]
git-cvsimport: really convert underscores in branch names to dots with -u
The documentation states for the -u option that underscores in tag and
branch names are converted to dots, but this was actually implemented
for the tag names only.
Kurt Roeckx reported this through
http://bugs.debian.org/446495
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jonathan del Strother [Wed, 17 Oct 2007 09:31:35 +0000 (10:31 +0100)]
Fixing path quoting in git-rebase
git-rebase used to fail when run from a path containing a space.
Signed-off-by: Jonathan del Strother <jon.delStrother@bestbefore.tv>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Junio C Hamano [Fri, 2 Nov 2007 22:40:54 +0000 (15:40 -0700)]
Merge branch 'bk/maint-cvsexportcommit' into maint
* bk/maint-cvsexportcommit:
cvsexportcommit: fix for commits that do not have parents
Kristian Høgsberg [Fri, 2 Nov 2007 15:33:07 +0000 (11:33 -0400)]
Remove unecessary hard-coding of EDITOR=':' VISUAL=':' in some test suites.
They are already set and exoprted by sourcing ./test-lib.sh
in all test scripts.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Fri, 2 Nov 2007 17:12:57 +0000 (20:12 +0300)]
Documentation: quote commit messages consistently.
Documentation quotes commit messages 14 times with double-quotes, and 7
times with single-quotes. The patch turns everything to double-quotes.
A nice side effect is that documentation becomes more Windoze-friendly
as AFAIK single quotes won't work there.
Signed-off-by: Sergei Organov <osv@javad.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jonas Fonseca [Fri, 2 Nov 2007 09:10:11 +0000 (10:10 +0100)]
Remove escaping of '|' in manpage option sections
The escaped were ending up verbatim in the generated documentation.
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Gerrit Pape [Wed, 31 Oct 2007 13:59:16 +0000 (13:59 +0000)]
git-diff.txt: add section "output format" describing the diff formats
git-diff.txt includes diff-options.txt which for the -p option refers
to a section "generating patches.." which is missing from the git-diff
documentation. This patch adapts diff-format.txt to additionally
mention the git-diff program, and includes diff-format.txt into
git-diff.txt.
Tino Keitel noticed this problem.
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Thu, 1 Nov 2007 14:21:39 +0000 (17:21 +0300)]
git-format-patch.txt: fix explanation of an example.
Signed-off-by: Sergei Organov <osv@javad.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Thu, 1 Nov 2007 13:24:11 +0000 (16:24 +0300)]
git-filter-branch.txt: fix a typo.
Signed-off-by: Sergei Organov <osv@javad.com>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ralf Wildenhues [Thu, 1 Nov 2007 08:46:02 +0000 (09:46 +0100)]
git-clone.txt: Improve --depth description.
Avoid abbreviation 'revs', improve the language a bit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jakub Narebski [Thu, 1 Nov 2007 12:45:33 +0000 (13:45 +0100)]
gitweb: Update config file example for snapshot feature in gitweb/INSTALL
Commit
a3c8ab30a54c30a6a434760bedf04548425416ef by Matt McCutchen
"gitweb: snapshot cleanups & support for offering multiple formats"
introduced new format of $feature{'snapshot'}{'default'} value. Update
"Config file example" in gitweb/INSTALL accordingly.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brad King [Wed, 31 Oct 2007 20:55:13 +0000 (16:55 -0400)]
cvsexportcommit: fix for commits that do not have parents
Previously commits without parents would fail to export with a
message indicating that the commits had more than one parent.
Instead we should use the --root option for git-diff-tree in
place of a parent.
Signed-off-by: Brad King <brad.king@kitware.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 31 Oct 2007 19:20:05 +0000 (12:20 -0700)]
GIT 1.5.3.5
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 31 Oct 2007 04:32:49 +0000 (21:32 -0700)]
Update GIT 1.5.3.5 Release Notes
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Björn Steinbrink [Wed, 31 Oct 2007 02:20:32 +0000 (03:20 +0100)]
git-rebase--interactive.sh: Make 3-way merge strategies work for -p.
git-rebase--interactive.sh used to pass all parents of a merge commit to
git-merge, which means that we have at least 3 heads to merge: HEAD,
first parent and second parent. So 3-way merge strategies like recursive
wouldn't work.
Fortunately, we have checked out the first parent right before the merge
anyway, so that is HEAD. Therefore we can drop simply it from the list
of parents, making 3-way strategies work for merge commits with only
two parents.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Björn Steinbrink [Wed, 31 Oct 2007 02:20:31 +0000 (03:20 +0100)]
git-rebase--interactive.sh: Don't pass a strategy to git-cherry-pick.
git-cherry-pick doesn't support a strategy paramter, so don't pass one.
This means that --strategy for interactive rebases is a no-op for
anything but merge commits, but that's still better than being broken. A
correct fix would probably need to port the --merge behaviour from plain
git-rebase.sh, but I have no clue how to integrate that cleanly.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Björn Steinbrink [Wed, 31 Oct 2007 02:20:30 +0000 (03:20 +0100)]
Fix --strategy parsing in git-rebase--interactive.sh
For the --strategy/-s option, git-rebase--interactive.sh dropped the
parameter which it was trying to parse.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Lars Hjemli [Tue, 25 Sep 2007 06:36:38 +0000 (08:36 +0200)]
Make merge-recursive honor diff.renamelimit
It might be a sign of source code management gone bad, but when two branches
has diverged almost beyond recognition and time has come for the branches to
merge, the user is going to need all the help his tool can give him. Honoring
diff.renamelimit has great potential as a painkiller in such situations.
The painkiller effect could have been achieved by e.g. 'merge.renamelimit',
but the flexibility gained by a separate option is questionable: our user
would probably expect git to detect renames equally good when merging as
when diffing (I known I did).
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Nicolas Pitre [Tue, 30 Oct 2007 19:59:24 +0000 (15:59 -0400)]
cherry-pick/revert: more compact user direction message
A failed cherry-pick (and friend) currently says:
|Automatic cherry-pick failed. After resolving the conflicts,
|mark the corrected paths with 'git-add <paths>'
|and commit the result.
This can obviously be displayed on two lines only.
While at it, change "git-add" to "git add".
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sergei Organov [Tue, 30 Oct 2007 19:54:02 +0000 (22:54 +0300)]
core-tutorial: Use new syntax for git-merge.
"git-merge <msg> HEAD <other branches>" is still supported but
we shouldn't encourage its use.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 30 Oct 2007 18:54:11 +0000 (11:54 -0700)]
git-merge: document but discourage the historical syntax
Historically "git merge" took its command line arguments in a
rather strange order. Document the historical syntax, and also
document clearly that it is not encouraged in new scripts.
There is no reason to deprecate the historical syntax, as the
current code can sanely tell which syntax the caller is using,
and existing scripts by people do use the historical syntax.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 30 Oct 2007 18:30:43 +0000 (11:30 -0700)]
Prevent send-pack from segfaulting (backport from 'master')
4491e62ae932d5774f628d1bd3be663c11058a73 (Prevent send-pack from
segfaulting when a branch doesn't match) is hereby cherry-picked
back to 'maint'.
If we can't find a source match, and we have no destination, we
need to abort the match function early before we try to match
the destination against the remote.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Michael W. Olson [Tue, 30 Oct 2007 13:53:47 +0000 (09:53 -0400)]
Documentation/git-cvsexportcommit.txt: s/mgs/msg/ in example
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 29 Oct 2007 19:02:59 +0000 (12:02 -0700)]
RelNotes-1.5.3.5: describe recent fixes
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 29 Oct 2007 19:00:55 +0000 (12:00 -0700)]
merge-recursive.c: mrtree in merge() is not used before set
The called function merge_trees() sets its *result, to which the
address of the variable mrtree in merge() function is passed,
only when index_only is set. But that is Ok as the function
uses the value in the variable only under index_only iteration.
However, recent gcc does not realize this. Work it around by
adding a fake initializer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 29 Oct 2007 18:53:55 +0000 (11:53 -0700)]
sha1_file.c: avoid gcc signed overflow warnings
With the recent gcc, we get:
sha1_file.c: In check_packed_git_:
sha1_file.c:527: warning: assuming signed overflow does not
occur when assuming that (X + c) < X is always false
sha1_file.c:527: warning: assuming signed overflow does not
occur when assuming that (X + c) < X is always false
for a piece of code that tries to make sure that off_t is large
enough to hold more than 2^32 offset. The test tried to make
sure these do not wrap-around:
/* make sure we can deal with large pack offsets */
off_t x = 0x7fffffffUL, y = 0xffffffffUL;
if (x > (x + 1) || y > (y + 1)) {
but gcc assumes it can do whatever optimization it wants for a
signed overflow (undefined behaviour) and warns about this
construct.
Follow Linus's suggestion to check sizeof(off_t) instead to work
around the problem.
Signed-off-by: Junio C Hamano <gitster@pobox.com>