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No need to memcpy() source buffer data when we might just process the
data in place instead of accumulating it into a separate buffer.
This is the case when a whole buffer would have been copied, summed,
written out and then discarded right away.
Also move the CRC32 processing within the loop so the data is more likely
to remain in the L1 CPU cache between the CRC32 sum, SHA1 sum and the
write call.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* np/maint-safer-pack:
fixup_pack_header_footer(): use nicely aligned buffer sizes
index-pack: use fixup_pack_header_footer()'s validation mode
pack-objects: use fixup_pack_header_footer()'s validation mode
improve reliability of fixup_pack_header_footer()
pack-objects: improve returned information from write_one()
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* maint:
Document sendemail.envelopesender configuration
Document clarification: gitmodules, gitattributes
config.txt: Add missing colons after option name
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Signed-off-by: Ask Bjørn Hansen <ask@develooper.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The SYNOPSIS section of gitattibutes and gitmodule fail to clearly
specify the name of the in tree files used. This patch brings in the
initial `.' and the fact that the `.gitmodules' file should reside at
the top-level of the working tree.
Signed-off-by: Gustaf Hendeby <hendeby@isy.liu.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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gitcvs.usecrlfattr --> gitcvs.usecrlfattr::
This fixes an asciidoc markup issue.
Signed-off-by: Teemu Likonen <tlikonen@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
gitattributes: -crlf is not binary
git-apply: Loosen "match_beginning" logic
Fix example in git-name-rev documentation
shell: do not play duplicated definition games to shrink the executable
Fix use of hardlinks in "make install"
pack-objects: Allow missing base objects when creating thin packs
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The description of crlf attribute incorrectly said that "-crlf" means
binary. It is true that for binary files you would want "-crlf", but
that is not the same thing.
We also have supported attribute macros and via that mechanism a handy
"binary" to specify "-crlf -diff" at the same time. It was not documented
anywhere as far as I can tell, even though the support was there from
the very beginning.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Even after a handfle attempts, match_beginning logic still has corner
cases:
1bf1a85 (apply: treat EOF as proper context., 2006-05-23)
65aadb9 (apply: force matching at the beginning., 2006-05-24)
4be6096 (apply --unidiff-zero: loosen sanity checks ..., 2006-09-17)
ee5a317 (Fix "git apply" to correctly enforce "match ..., 2008-04-06)
This is a tricky piece of code.
We still incorrectly enforce "match_beginning" for -U0 matches.
I noticed this while trying out an example sequence from Clemens Buchacher:
$ echo a >victim
$ git add victim
$ echo b >>victim
$ git diff -U0 >patch
$ cat patch
diff --git i/victim w/victim
index 7898192..422c2b7 100644
--- i/victim
+++ w/victim
@@ -1,0 +2 @@ a
+b
$ git apply --cached --unidiff-zero <patch
$ git show :victim
b
a
The change inserts a new line before the second line, but we insist it to
be applied at the beginning. As the result, the code refuses to apply it
at the original offset, and we end up adding the line at the beginning.
Updates to the test script are by Clemens Buchacher.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 59d3f54 (name-rev: avoid "^0" when unneeded, 2007-02-20), name-rev
stopped showing an unnecessary "^0" to dereference a tag down to a commit.
The patch should have made a matching update to the documentation, but we
forgot.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* sp/missing-thin-base:
pack-objects: Allow missing base objects when creating thin packs
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* sb/daemon:
daemon.c: minor style fixup
git-daemon: rewrite kindergarden, new option --max-connections
git-daemon: Simplify dead-children reaping logic
git-daemon: use LOG_PID, simplify logging code
git-daemon: call logerror() instead of error()
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* af/maint-install-no-handlink:
Fix use of hardlinks in "make install"
Makefile: always provide a fallback when hardlinks fail
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Playing with linker games to shrink git-shell did not go well with various
other platforms and compilers.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code failed to filter-out git-add properly on platforms were $X is
not empty (ATM there is only one such a platform).
Than it tried to create a hardlink to the file ($execdir/git-add) it just
removed (because git-add is first in the BUILT_INS), so ln failed (but
because stderr was redirected into /dev/null the error was never seen), and
the whole install ended up using "ln -s" instead.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It should be more efficient to use nicely aligned buffer sizes, either
for filesystem operations or SHA1 checksums. Also, using a relatively
small nominal size might allow for the data to remain in L1 cache
between both SHA1_Update() calls.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When completing a thin pack, a new header has to be written to
the pack and a new SHA1 computed. Make sure that the SHA1 of what
is being read back matches the SHA1 of what was written for both:
the original pack and the appended objects.
To do so, a couple write_or_die() calls were converted to sha1write()
which has the advantage of doing some buffering as well as handling
SHA1 and CRC32 checksum already.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When limiting the pack size, a new header has to be written to the
pack and a new SHA1 computed. Make sure that the SHA1 of what is being
read back matches the SHA1 of what was written.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, this function has the potential to read corrupted pack data
from disk and give it a valid SHA1 checksum. Let's add the ability to
validate SHA1 checksum of existing data along the way, including before
and after any arbitrary point in the pack.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function returns 0 when the current object couldn't be written
due to the pack size limit, otherwise the current offset in the pack.
There is a problem with this approach however, since current object
could be a delta and its delta base might just have been written in
the same write_one() call, but those successfully written objects are
not accounted in the offset variable tracked by the caller. Currently
this is not an issue but a subsequent patch will need this.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* np/verify-pack:
discard revindex data when pack list changes
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* maint:
tutorial: gentler illustration of Alice/Bob workflow using gitk
pretty=format: respect date format options
make git-shell paranoid about closed stdin/stdout/stderr
Document gitk --argscmd flag.
Fix '--dirstat' with cross-directory renaming
for-each-ref: Allow a trailing slash in the patterns
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When this option is passed to git p4 clone, the checkout at the end would
previously fail. This patch fixes it by optionally creating the master branch
from refs/heads/p4/master, which is the correct one for this option.
Signed-off-by: Tor Arvid Lund <torarvid@gmail.com>
Acked-By: Simon Hausmann <simon@lst.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update to gitutorial as discussedin the git mailing list:
http://marc.info/?t=121969390900002&r=1&w=2
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running a command like:
git log --pretty=format:%ad --date=short
the date option was ignored. This patch causes it to use whatever
format was specified by --date (or by --relative-date, etc), just
as the non-user formats would do.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is in general unsafe to start a program with one or more of file
descriptors 0/1/2 closed. Karl Chen for example noticed that stat_command
does this in order to rename a pipe file descriptor to 0:
dup2(from, 0);
close(from);
... but if stdin was closed (for example) from == 0, so that
dup2(0, 0);
close(0);
just ends up closing the pipe. Another extremely rare but nasty problem
would occur if an "important" file ends up in file descriptor 2, and is
corrupted by a call to die().
Fixing this in git was considered to be overkill, so this patch works
around it only for git-shell. The fix is simply to open all the "low"
descriptors to /dev/null in main.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Acked-by: Stephen R. van den Berg <srb@cuci.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This was part of my original patch, but appears to have been lost.
Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The dirstat code depends on the fact that we always generate diffs with
the names sorted, since it then just does a single-pass walk-over of the
sorted list of names and how many changes there were. The sorting means
that all files are nicely grouped by directory.
That all works fine.
Except when we have rename detection, and suddenly the nicely sorted list
of pathnames isn't all that sorted at all. And now the single-pass dirstat
walk gets all confused, and you can get results like this:
[torvalds@nehalem linux]$ git diff --dirstat=2 -M v2.6.27-rc4..v2.6.27-rc5
3.0% arch/powerpc/configs/
6.8% arch/arm/configs/
2.7% arch/powerpc/configs/
4.2% arch/arm/configs/
5.6% arch/powerpc/configs/
8.4% arch/arm/configs/
5.5% arch/powerpc/configs/
23.3% arch/arm/configs/
8.6% arch/powerpc/configs/
4.0% arch/
4.4% drivers/usb/musb/
4.0% drivers/watchdog/
7.6% drivers/
3.5% fs/
The trivial fix is to add a sorting pass, fixing it to:
[torvalds@nehalem linux]$ git diff --dirstat=2 -M v2.6.27-rc4..v2.6.27-rc5
43.0% arch/arm/configs/
25.5% arch/powerpc/configs/
5.3% arch/
4.4% drivers/usb/musb/
4.0% drivers/watchdog/
7.6% drivers/
3.5% fs/
Spot the difference. In case anybody wonders: it's because of a ton of
renames from {include/asm-blackfin => arch/blackfin/include/asm} that just
totally messed up the file ordering in between arch/arm and arch/powerpc.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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More often than not, I end up using something like refs/remotes/ as the
pattern for for-each-ref, but that doesn't work, because it expects to see
the slash in the ref name right after the matched pattern. So teach it to
accept the slash as the final character in the pattern as well.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Even if it always needed
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Just because we can
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These are not used anywhere else.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The statics are always initialized with 0
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Just calculate it where it is needed - it is cheap and trivial,
as all the lengths are already there (stored when creating the
command lists).
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The following syntax:
char foo[] = {
[0] = 1,
[7] = 2,
[15] = 3
};
is a c99 construct which some compilers do not support even though they
support other c99 constructs. This construct can be avoided by folding
these 'special' test cases into the sane_ctype array and making use of
the related infrastructure.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Matthias Kestenholz <mk@spinlock.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mv/merge-custom:
t7606: fix custom merge test
Fix "git-merge -s bogo" help text
Update .gitignore to ignore git-help
Builtin git-help.
builtin-help: always load_command_list() in cmd_help()
Add a second testcase for handling invalid strategies in git-merge
Add a new test for using a custom merge strategy
builtin-merge: allow using a custom strategy
builtin-help: make some internal functions available to other builtins
Conflicts:
help.c
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* ml/submodule:
git-submodule.sh - Remove trailing / from URL if found
git-submodule.sh - Remove trailing / from URL if found
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* am/cherry-pick-rerere:
Make cherry-pick use rerere for conflict resolution.
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* jc/add-addremove:
builtin-add.c: optimize -A option and "git add ."
builtin-add.c: restructure the code for maintainability
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* np/verify-pack:
discard revindex data when pack list changes
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* da/submodule-sync:
git-submodule: add "sync" command
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* maint:
ctype.c: protect tiny C preprocessor constants
index-pack: be careful after fixing up the header/footer
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Some platforms contaminate the preprocessor token namespace with their own
definition of SS without being asked. Avoid getting hit by redefinition
warning messages by explicitly undef SS, AA and DD shorthand we use in this
table definition.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The index-pack command, when processing a thin pack, fixed up the pack
after-the-fact. It forgets to fsync the result, because it only did that
in one path rather in all cases of fixup.
This moves the fsync_or_die() to the fix-up routine itself, rather than
doing it in one of the callers, so that all cases are covered.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently it is not possible to skip the submission of a change to Perforce
when running git-p4 submit. This patch compares the modification time before
and after the submit editor invokation and offers a prompt for skipping if
the submit template file was not saved.
Signed-off-by: Simon Hausmann <simon@lst.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* af/maint-install-no-handlink:
Makefile: always provide a fallback when hardlinks fail
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* jc/no-slim-shell:
Revert "Build-in "git-shell""
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* maint:
index-pack: setup git repository
Suppress some bash redirection error messages
Fix a warning (on cygwin) to allow -Werror
Fix "git log -i --grep"
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Previously, running "git format-patch -U5" would cause the
low-level diff machinery to change the diff output format
from "not specified" to "patch". This meant that
format-patch thought we explicitly specified a diff output
format, and would not use the default format. The resulting
message lacked both the diffstat and the summary, as well as
the separating "---".
Now format-patch explicitly checks for this condition and
uses the default. That means that "git format-patch -p" will
now have the "-p" ignored.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Nicolas Pitre
Junio C Hamano
Ask Bjørn Hansen
Gustaf Hendeby
Teemu Likonen
Alex Riesen
Tor Arvid Lund
Paolo Ciarrocchi
Jeff King
Paolo Bonzini
Yann Dirson
Linus Torvalds
Björn Steinbrink
Brandon Casey
Matthias Kestenholz
Simon Hausmann