A malloc() + memcpy() will always be faster than mmap() +
malloc() + inflate(). If the data is already there it is
certainly better to copy it straight away.
With this patch below I can do 'git log drivers/scsi/ >
/dev/null' about 7% faster. I bet it might be even more on
those platforms with bad mmap() support.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Especially with the new index format to come, it is more appropriate
to encapsulate more into check_packed_git_idx() and assume less of the
index format in struct packed_git.
To that effect, the index_base is renamed to index_data with void * type
so it is not used directly but other pointers initialized with it. This
allows for a couple pointer cast removal, as well as providing a better
generic name to grep for when adding support for new index versions or
formats.
And index_data is declared const too while at it.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
The 'use packed deltified objects' test was flawed as it failed to
remove the pack and index from the previous test, effectively preventing
the desired pack from being exercised as objects could be found in that
other pack instead.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Such a builtin remote simplifies the operation of "git-fetch",
which will populate FETCH_HEAD but will not pretend that two
repositories are in use, will not create a thin pack, and will
not perform any useless remapping of names. The speed
improvement is around 20%, and it should improve more if
"git-fetch" is converted to a builtin.
To this end, git-parse-remote is grown with a new kind of
remote, 'builtin'. In git-fetch.sh, we treat the builtin remote
specially in that it needs no pack/store operations. In fact,
doing git-fetch on a builtin remote will simply populate
FETCH_HEAD appropriately.
The patch also improves of the --track/--no-track support,
extending it so that branch.<name>.remote items referring '.'
can be created. Finally, it fixes a typo in git-checkout.sh.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Previous formulation could make it appear as removing all lines
matching a regexp (at least, I was looking for such a flag, and
confused this flag for what I was looking for).
Signed-off-by: Yann Dirson <ydirson@altern.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
git-checkout: fix "eval" used for merge labelling.
The symbolic notation of the fork point can contain whitespaces (e.g.
"git checkout -m 'HEAD@{9 hours ago}'"). Quote strings properly
when using eval to prepare GITHEAD_$new
update-hook: fix incorrect use of git-describe and sed for finding previous tag
Previously git-describe would output lines of the form v1.1.1-gf509d56
The update hook found the dash and stripped it off using
sed 's/-g.*//'
The remainder was then used as the previous tag name.
However, git-describe has changed format. The output is now of the form v1.1.1-23-gf509d56
The above sed fragment doesn't strip the middle "-23", and so the
previous tag name used would be "v1.1.1-23". This is incorrect.
Since the hook script was written, git-describe now gained support for
"--abbrev=0", which it uses as a special flag to tell it not to output
anything other than the nearest tag name. This patch fixes the problem,
and prevents any future recurrence by using this new flag rather than
sed to find the previous tag.
Signed-off-by: Andy Parkins <andyparkins@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
* jc/fetch:
.gitignore: add git-fetch--tool
builtin-fetch--tool: fix reflog notes.
git-fetch: retire update-local-ref which is not used anymore.
builtin-fetch--tool: make sure not to overstep ls-remote-result buffer.
fetch--tool: fix uninitialized buffer when reading from stdin
builtin-fetch--tool: adjust to updated sha1_object_info().
git-fetch--tool takes flags before the subcommand.
Use stdin reflist passing in git-fetch.sh
Use stdin reflist passing in parse-remote
Allow fetch--tool to read from stdin
git-fetch: rewrite expand_ref_wildcard in C
git-fetch: rewrite another shell loop in C
git-fetch: move more code into C.
git-fetch--tool: start rewriting parts of git-fetch in C.
git-fetch: split fetch_main into fetch_dumb and fetch_native
If you use scanf or sscanf to parse integers, your code probably
accepts bogus inputs. For example, builtin-grep (aka git-grep) uses
sscanf(scan, "%u", &num) to parse the integer argument to -A, -B, -C.
Currently, "-C 1,000" and "-C 4294967297" are both treated just like
"-C 1":
$ git-grep -h -C 4294967297 juggle
out and you may find it easier to switch back and forth if you
juggle multiple lines of development simultaneously. Of
course, you will pay the price of more disk usage to hold
The obvious fix is to use strtoul instead. But using a bare strtoul is
too messy, at least when done properly, so I've added a wrapper function.
The new function in the patch below belongs elsewhere if it would be
useful in replacing any of the four remaining uses of sscanf.
One final note: With this change, I get a slightly different
diagnostic depending on the context size:
A common convention that makes it easy to identify the source
of a diagnostic is to include the program name before the first ":".
Whether that should be "git" or "git-grep" is another question.
Using "grep" or "fatal" is misleading.
Signed-off-by: Jim Meyering <jim@meyering.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
shortlog: prompt when reading from terminal by mistake
I was trying to see who have been active recently to find GSoC
mentor candidates by running:
$ git shortlog -s -n --since=4.months | head -n 20
After waiting for about 20 seconds, I started getting worried,
thinking that the recent revision traversal updates might have
had an unintended side effect.
Not so. "git shortlog" acts as a filter when no revs are given,
unlike "git log" which defaults to HEAD. It was reading from
its standard input.
git-svn: add -l/--local command to "git svn rebase"
This avoids fetching new revisions remotely, and is usefuly
versus plain "git rebase" because the user does not have to
specify which remote head to rebase against.
Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
Add git-mergetool to run an appropriate merge conflict resolution program
The git-mergetool program can be used to automatically run an appropriate
merge resolution program to resolve merge conflicts. It will automatically
run one of kdiff3, tkdiff, meld, xxdiff, or emacs emerge programs.
I have come across many emails that use long strings of '-'s as separators
for ideas. This patch below limits the separator to only 3 '-', with the
intent that long string of '-'s will stay in the commit msg and not in the
patch file.
Signed-off-by: Don Zickus <dzickus@redhat.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
I am working on a project that required parsing through regular
mboxes that didn't necessarily have patches embedded in them. I
started by creating my own modified copy of git-am and working
from there. Very quickly, I noticed git-mailinfo wasn't able to
handle a big chunk of my email.
After hacking up numerous solutions and running into more
limitations, I decided it was just easier to rewrite a big chunk
of it. The following patch has a bunch of fixes and features
that I needed in order for me do what I wanted.
Note: I'm didn't follow any email rfc papers but I don't think
any of the changes I did required much knowledge (besides the
boundary stuff).
List of major changes/fixes:
- can't create empty patch files fix
- empty patch files don't fail, this failure will come inside git-am
- multipart boundaries are now handled
- only output inbody headers if a patch exists otherwise assume those
headers are part of the reply and instead output the original headers
- decode and filter base64 patches correctly
- various other accidental fixes
I believe I didn't break any existing functionality or
compatibility (other than what I describe above, which is really
only the empty patch file).
I tested this through various mailing list archives and
everything seemed to parse correctly (a couple thousand emails).
[jc: squashed in another patch from Don's five patch series to
fix the test case, as this patch exposes the bug in the test.]
Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
Merge branch 'master' of git://repo.or.cz/git/fastimport
* 'master' of git://repo.or.cz/git/fastimport:
Remove unnecessary casts from fast-import
New fast-import test case for valid tree sorting
fast-import: grow tree storage more aggressively
POSIX says sed may add a trailing LF if there isn't already
one there. We shouldn't rely on it not adding that LF, as
some systems (Mac OS X for example) will add it.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
I started hacking on a change to add stdout redirection support to
the run_command family, but found I was using a lot of close calls
on two pipes in an array (such as for pipe). So I'm doing a tiny
bit of refactoring first to make the next set of changes clearer.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Jeff King pointed out that these casts are quite unnecessary, as
the compiler should be doing them anyway, and may cause problems
in the future if the size of the argument for to_atom were to ever
be increased.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The Git tree sorting convention is more complex than just the name,
it needs to include the mode too to make sure trees sort as though
their name ends with "/".
This is a simple test case that verifies fast-import keeps the tree
ordering correct after editing the same tree twice in a single
input stream. A recent proposed patch series (that has not yet
been applied) will cause this test to fail, due to a bug in the
way the series handles sorting within the trees.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When building up a tree for a commit, fast-import
dynamically allocates memory for the tree entries. When more
space is needed, the allocated memory is increased by a
constant amount. For very large trees, this means
re-allocating and memcpy()ing the memory O(n) times.
To compound this problem, releasing the previous tree
resource does not free the memory; it is kept in a pool
for future trees. This means that each of the O(n)
allocations will consume increasing amounts of memory,
giving O(n^2) memory consumption.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Since git-gui 0.6.4 the credits file is no longer produced.
This file was removed from git-gui due to build issues that
a lot of users and Git developers have reported running into.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Merge branch 'maint' of git://repo.or.cz/git-gui into maint
* 'maint' of git://repo.or.cz/git-gui:
git-gui: Allow 'git gui version' outside of a repository
git-gui: Revert "git-gui: Display all authors of git-gui."
git-gui: Revert "Don't modify CREDITS-FILE if it hasn't changed."
git-gui: Allow committing empty merges
git-gui: Allow 'git gui version' outside of a repository
I got a little surprise one day when I tried to run 'git gui version'
outside of a Git repository to determine what version of git-gui was
installed on that system. Turns out we were doing the repository
check long before we got around to command line argument handling.
We now look to see if the only argument we have been given is
'version' or '--version', and if so, print out the version and
exit immediately; long before we consider looking at the Git
version or working directory. This way users can still get to
the git-gui version number even if Git's version cannot be read.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Johannes Sixt noticed that git-gui would not let the user commit
a merge created by `git merge -s ours` as the ours strategy does
not alter the tree (that is HEAD^1^{tree} = HEAD^{tree} after the
merge). The same issue arises from amending such a merge commit.
We now permit an empty commit (no changed files) if we are doing
a merge commit. Core Git does this with its command line based
git-commit tool, so it makes sense for the GUI to do the same.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The expected outcome is _not_ to error out if only a couple of the
refs were not changed during the last 10 days.
This patch complains loudly about refs which are skipped due to the
pack not containing the corresponding objects, but dies only if
no objects would be in the pack _at all_.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
git-send-email: configurable bcc and chain-reply-to
Chain-reply-to is a personal perference, and is unlikely to change from
patchset to patchset. Similarly, bcc is likely to have the same values
every invocation is one likes to bcc oneself.
So, allow both to be set via configuration variables.
Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
git-merge: warn when -m provided on a fast forward
Warn the user that the "-m" option is ignored in the case of a fast
forward. That may save some confusion in the case where the user
doesn't know about fast forwards yet and may not realize that the
behavior here is intentional.
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Junio C Hamano <junkio@cox.net>
* jc/boundary:
git-bundle: prevent overwriting existing bundles
git-bundle: die if a given ref is not included in bundle
git-bundle: handle thin packs in subcommand "unbundle"
git-bundle: Make thin packs
git-bundle: avoid packing objects which are in the prerequisites
bundle: fix wrong check of read_header()'s return value & add tests
revision --boundary: fix uncounted case.
revision --boundary: fix stupid typo
git-bundle: make verify a bit more chatty.
revision traversal: SHOWN means shown
git-bundle: various fixups
revision traversal: retire BOUNDARY_SHOW
revision walker: Fix --boundary when limited
Sergey Vlasov, Andy Parkins and Alex Riesen all pointed out that it
is possible for a single invocation of receive-pack to be given more
refs than the OS might allow us to pass as command line parameters
to a single hook invocation.
We don't want to break these up into multiple invocations (like
xargs might do) as that makes it impossible for the pre-receive
hook to verify multiple related ref updates occur at the same time,
and it makes it harder for post-receive to send out a single batch
notification.
Instead we pass the reference data on a pipe connected to the
hook's stdin, supplying one ref per line to the hook. This way a
single hook invocation can obtain an infinite amount of ref data,
without bumping into any operating system limits.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Split back out update_hook handling in receive-pack
Since we have decided to change the calling conventions for the
pre-receive and post-receive hooks to take the ref data on stdin
rather than on the command line we cannot use the same logic to
invoke the update hook anymore.
So we take a small step backwards towards what we used to have,
and create a specialized function for executing just the update
hook.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Refactor run_command error handling in receive-pack
I'm pulling the error handling used to decode the result of
run_command up into a new function so that I can reuse it.
No changes, just a simple code movement.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Sometimes callers trying to use run_command to execute a child
process will want to setup a pipe or file descriptor to redirect
into the child's stdin.
This idea is completely stolen from builtin-bundle's fork_with_pipe,
written by Johannes Schindelin. All credit (and blame) should lie
with Dscho. ;-)
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
If the calling process wants to send data to stdin of a
child process it will need to arrange for a pipe and get
the child process running, feed data to it, then wait
for the child process to finish. So we split the run
function into two halves, allowing callers to first
start the child then later finish it.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
There are a number of places where we do some variation of
fork()+exec() but we also need to setup redirection in the process,
much like what run_command does for us already with its option flags.
It would be nice to reuse more of the run_command logic, especially
as that non-fork API helps us to port to odd platforms like Win32.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Another change by me is removing the va_list variants of run_command,
one of which is used by builtin-revert.c. To avoid compile errors
I'm refactoring builtin-revert to use the char** variant instead,
as that variant is staying.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
cvsserver: Use Merged response instead of Update-existing for merged files
Using Update-existing leads to the client forgetting about the "locally
modified" status of the file which can lead to loss of local changes on
later updates.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de> Acked-by: Martin Langhoff <martin.langhoff@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
I like the idea of the new ':/<oneline prefix>' notation, and gave it
a try, but all I could get was a segfault. It was dereferencing a NULL
commit list. Fix below. With it, this example now works:
$ mkdir .j; cd .j; touch f
$ git-init; git-add f; git-commit -mc f; echo x >f; git-commit -md f
$ git-diff -p :/c :/d
diff --git a/f b/f
index e69de29..587be6b 100644
--- a/f
+++ b/f
@@ -0,0 +1 @@
+x
Signed-off-by: Jim Meyering <jim@meyering.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
prepare_packed_git(): sort packs by age and localness.
When accessing objects, we first look for them in packs that
are linked together in the reverse order of discovery.
Since younger packs tend to contain more recent objects, which
are more likely to be accessed often, and local packs tend to
contain objects more relevant to our specific projects, sort the
list of packs before starting to access them. In addition,
favoring local packs over the ones borrowed from alternates can
be a win when alternates are mounted on network file systems.
This would first fork your own 'mytopic' branch from the 'topic'
branch you track from the 'origin' repository; then it would set up two
configuration variables so that 'git pull' without parameters does the
right thing while you are on your own 'mytopic' branch.
This commit adds a --track option to git-branch, so that "git
branch --track mytopic origin/topic" performs the latter two actions
when creating your 'mytopic' branch.
If the configuration variable branch.autosetupmerge is set to true, you
do not have to pass the --track option explicitly; further patches in
this series allow setting the variable with a "git remote add" option.
The configuration variable is off by default, and there is a --no-track
option to countermand it even if the variable is set.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* js/diff-ni:
Get rid of the dependency to GNU diff in the tests
diff --no-index: support /dev/null as filename
diff-ni: fix the diff with standard input
diff: support reading a file from stdin via "-"
* sp/make:
Allow "make -w" generate its usual output
Support of "make -s": do not output anything of the build itself
More build output cleaning up
Make 'make' quiet by default
Make 'make' quieter while building git
* maint:
git.el: Retrieve commit log information from .dotest directory.
git.el: Avoid appending a signoff line that is already present.
setup_git_directory_gently: fix off-by-one error
user-manual: install user manual stylesheet with other web documents
user-manual: fix rendering of history diagrams
user-manual: fix missing colon in git-show example
user-manual: fix inconsistent use of pull and merge
user-manual: fix inconsistent example
glossary: fix overoptimistic automatic linking of defined terms
Documentation: s/seperator/separator/
Adjust reflog filemode in shared repository
Merge branch 'maint' of git://linux-nfs.org/~bfields/git into maint
* 'maint' of git://linux-nfs.org/~bfields/git:
user-manual: install user manual stylesheet with other web documents
user-manual: fix rendering of history diagrams
user-manual: fix missing colon in git-show example
user-manual: fix inconsistent use of pull and merge
user-manual: fix inconsistent example
glossary: fix overoptimistic automatic linking of defined terms
Asciidoc appears to interpret a backslash at the end of a line as
escaping the end-of-line character, which screws up the display of
history diagrams like
o--o--o
\
o--...
The obvious fix (replacing "\" by "\\") doesn't work. The only
workaround I've found is to include all such diagrams in a LiteralBlock.
Asciidoc claims that should be equivalent to a literal paragraph, so I
don't understand why the difference--perhaps it's an asciidoc bug.
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
user-manual: fix inconsistent use of pull and merge
I used "git pull ." instead of "git merge" here without any explanation.
Stick instead to "git merge" for now (the equivalent pull syntax is
still covered in a later chapter).
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
glossary: fix overoptimistic automatic linking of defined terms
The script sort_glossary.pl turns each use of "term" into a link to the
definition of "term". To avoid mangling links like
gitlink:git-term[1]
it doesn't replace any occurence of "term" preceded by "link:git-".
This fails for gitlink:git-symbolic-ref[1] when substituting for "ref".
So instead just refuse to replace anything preceded by a "-".
That could result in missing some opportunities, but that's a less
annoying error.
Actually I find the automatic substitution a little distracting; some
day maybe we should just run it once and commit the result, so it can
be hand-tuned.
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
add: Support specifying an excludes file with a configuration variable
This adds the 'core.excludesfile' configuration variable. This variable can
hold a path to a file containing patterns of file names to exclude from
git-add, like $GIT_DIR/info/exclude. Patterns in the excludes file are used
in addition to those in info/exclude.
Signed-off-by: James Bowes <jbowes@dangerouslyinc.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
The --interactive option behaves like "git commit", except that
"git add --interactive" is executed before committing. It is
incompatible with -a and -i.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Not only does it prevent accidentally losing older bundles, but it
also fixes a subtle bug: when writing into an existing bundle,
git-pack-objects would not truncate the bundle. Therefore,
fetching from the bundle would trigger an error in unpack-objects:
"fatal: pack has junk at the end".
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
Merge branch 'master' of git://repo.or.cz/git/fastimport
* 'master' of git://repo.or.cz/git/fastimport:
Allow fast-import frontends to reload the marks table
Use atomic updates to the fast-import mark file
Preallocate memory earlier in fast-import
Thin packs are way smaller, but they rely on the receiving end to have the
base objects. However, Git's pack protocol also uses thin packs by
default. So make the packs contained in bundles thin, since bundles are
just another transport.
The patch looks a bit bigger than intended, mainly because --thin
_implies_ that pack-objects should run its own rev-list. Therefore, this
patch removes all the stuff we used to roll rev-list ourselves.
This commit also changes behaviour slightly: since we now know early
enough if a specified ref is _not_ contained in the pack, we can avoid
putting that ref into the pack. So, we don't die() here, but warn()
instead, and skip that ref.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>