| Commit message (Collapse) | Author | Age | Files | Lines |
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Jon Smirl said:
| Once an object reference hits a pack file it is very likely that
| following references will hit the same pack file. So first place to
| look for an object is the same place the previous object was found.
This is indeed a good heuristic so here it is. The search always start
with the pack where the last object lookup succeeded. If the wanted
object is not available there then the search continues with the normal
pack ordering.
To test this I split the Linux repository into 66 packs and performed a
"time git-rev-list --objects --all > /dev/null". Best results are as
follows:
Pack Sort w/o this patch w/ this patch
-------------------------------------------------------------
recent objects last 26.4s 20.9s
recent objects first 24.9s 18.4s
This shows that the pack order based on object age has some influence,
but that the last-used-pack heuristic is even more significant in
reducing object lookup.
Signed-off-by: Nicolas Pitre <nico@cam.org> --- Note: the
--max-pack-size to git-repack currently produces packs with old objects
after those containing recent objects. The pack sort based on
filesystem timestamp is therefore backward for those. This needs to be
fixed of course, but at least it made me think about this variable for
the test.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Use a generic make rule to build all the test programs, rather than
specifically mentioning each one.
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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... and make the entries sorted.
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* db/remote:
Move refspec pattern matching to match_refs().
Update local tracking refs when pushing
Add handlers for fetch-side configuration of remotes.
Move refspec parser from connect.c and cache.h to remote.{c,h}
Move remote parsing into a library file out of builtin-push.
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This means that send-pack and http-push will support pattern refspecs,
so builtin-push.c doesn't have to expand them, and also git push can
just turn --tags into "refs/tags/*", further simplifying
builtin-push.c
check_ref_format() gets a third "conditionally okay" result for
something that's valid as a pattern but not as a particular ref.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This also adds a --remote option to send-pack, which specifies the
configured remote being used. It is provided automatically by
git-push, and must match the url (which is still needed, since there
could be multiple urls).
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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These follow the pattern of the push side configuration, but aren't
taken from anywhere else, because git-fetch is still in shell.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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The new parser is different from the one in builtin-push in two ways:
the default is to use the current branch's remote, if there is one,
before "origin"; and config is used in preference to remotes.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* 'dh/repack' (early part):
Ensure git-repack -a -d --max-pack-size=N deletes correct packs
pack-objects: clarification & option checks for --max-pack-size
git-repack --max-pack-size: add option parsing to enable feature
git-repack --max-pack-size: split packs as asked by write_{object,one}()
git-repack --max-pack-size: write_{object,one}() respect pack limit
git-repack --max-pack-size: new file statics and code restructuring
Alter sha1close() 3rd argument to request flush only
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The packfile portion of the "remove redundant" code
near the bottom of git-repack.sh is broken when
pack splitting occurs. Particularly since this is
the only place where we automatically delete packfiles,
make sure it works properly for all cases, old or new.
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Explain the special code for detecting a corner-case error,
and complain about --stdout & --max-pack-size being used together.
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Add --max-pack-size parsing and usage messages.
Upgrade git-repack.sh to handle multiple packfile names,
and build packfiles in GIT_OBJECT_DIRECTORY not GIT_DIR.
Update documentation.
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Rewrite write_pack_file() to break to a new packfile
whenever write_object/write_one request it, and
correct the header's object count in the previous packfile.
Change write_index_file() to write an index
for just the objects in the most recent packfile.
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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With --max-pack-size, generate the appropriate write limit
for each object and check against it before each group of writes.
Update delta usability rules to handle base being in a previously-
written pack. Inline sha1write_compress() so we know the
exact size of the written data when it needs to be compressed.
Detect and return write "failure".
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Add "pack_size_limit", the limit specified by --max-pack-size,
"written_list", the list of objects written to the current pack,
and "nr_written", the number of objects in written_list.
Put "base_name" at file scope again and add forward declarations.
Move write_index_file() call from cnd_pack_objects() to
write_pack_file() since only the latter will know how
many times to call write_index_file().
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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update=0 suppressed writing the final SHA-1 but was not used.
Now final=0 suppresses SHA-1 finalization, SHA-1 writing,
and closing -- in other words, only flush the buffer.
Signed-off-by: Dana L. How <danahow@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* np/delta:
update diff-delta.c copyright
improve delta long block matching with big files
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There is actually nothing left from the original LibXDiff code I used
over 2 years ago, and even the GIT implementation has diverged quite a
bit from LibXDiff's at this point. Let's update the copyright notice
to better reflect that fact.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Martin Koegler noted that create_delta() performs a new hash lookup
after every block copy encoding which are currently limited to 64KB.
In case of larger identical blocks, the next hash lookup would normally
point to the next 64KB block in the reference buffer and multiple block
copy operations will be consecutively encoded.
It is however possible that the reference buffer be sparsely indexed if
hash buckets have been trimmed down in create_delta_index() when hashing
of the reference buffer isn't well balanced. In that case the hash
lookup following a block copy might fail to match anything and the fact
that the reference buffer still matches beyond the previous 64KB block
will be missed.
Let's rework the code so that buffer comparison isn't bounded to 64KB
anymore. The match size should be as large as possible up front and
only then should multiple block copy be encoded to cover it all.
Also, fewer hash lookups will be performed in the end.
According to Martin, this patch should reduce his 92MB pack down to 75MB
with the dataset he has.
Tests performed on the Linux kernel repo show a slightly smaller pack and
a slightly faster repack.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* jc/nodelta:
builtin-pack-objects: remove unnecessary code for no-delta
Teach "delta" attribute to pack-objects.
pack-objects: pass fullname down to add_object_entry()
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As we do not consider objects marked as "no-delta" early, there
is no point to check if the other objects already in the delta
window are marked as such -- "no-delta" objects will not enter
the window to begin with.
Pointed out by Nico.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This teaches pack-objects to use .gitattributes mechanism so
that the user can specify certain blobs are not worth spending
CPU cycles to attempt deltification.
The name of the attrbute is "delta", and when it is set to
false, like this:
== .gitattributes ==
*.jpg -delta
they are always stored in the plain-compressed base object
representation.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Instead of giving a hash for grouping, pass fullname to add_object_entry().
I want to add "do not try deltifying this object" bit to object_entry based on
the settings in .gitattributes, and hashing the name down too early would
interfere with that plan.
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* ar/verbose:
Add another verbosity level to git-fetch
Verbose connect messages to show the IP addresses used
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Use "-v -v" to run git-fetch-pack in verbose mode.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Also, the patch makes the error messages more verbose. Helps when
diagnosing connect problems on weird systems.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* ar/run:
Allow environment variables to be unset in the processes started by run_command
Add ability to specify environment extension to run_command
Add run_command_v_opt_cd: chdir into a directory before exec
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To unset a variable, just specify its name, without "=". For example:
const char *env[] = {"GIT_DIR=.git", "PWD", NULL};
const char *argv[] = {"git-ls-files", "-s", NULL};
int err = run_command_v_opt_cd_env(argv, RUN_GIT_CMD, ".", env);
The PWD will be unset before executing git-ls-files.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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There is no way to specify and override for the environment:
there'd be no user for it yet.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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It can make code simplier (no need to preserve cwd) and safer
(no chance the cwd of the current process is accidentally forgotten).
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* ar/mergestat:
Add a configuration option to control diffstat after merge
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The diffstat can be controlled either with command-line options
(--summary|--no-summary) or with merge.diffstat. The default is
left as it was: diffstat is active by default.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* rr/cvsexport:
Add option to cvs update before export
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Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* maint:
cvsserver: Fix some typos in asciidoc documentation
cvsserver: Note that CVS_SERVER can also be specified as method variable
cvsserver: Correct inetd.conf example in asciidoc documentation
user-manual: fixed typo in example
Add test case for $Id$ expanded in the repository
git-svn: avoid md5 calculation entirely if SVN doesn't provide one
Makefile: Remove git-fsck and git-verify-pack from PROGRAMS
Fix stupid typo in lookup_tag()
git-gui: Guess our share/git-gui/lib path at runtime if possible
Correct key bindings to Control-<foo>
git-gui: Tighten internal pattern match for lib/ directory
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Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Reasonably new versions of the cvs CLI client allow one to
specifiy CVS_SERVER as a method variable directly in
CVSROOT. This is way more convinient than using an
environment variable since it gets saved in CVS/Root.
Since I only discovered this by accident I guess there
might be others out there that learnt CVS on the 1.11
series (or even earlier) and profit from such a note
about cvs improvements in the last couple years.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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While the given example worked, it made us look rather
incompetent. Give the correct reason why one needs the
more complex syntax and change the example to reflect
that.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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This test case would have caught the bug fixed by revision
c23290d5.
It puts various forms of $Id$ into a file in the repository,
without allowing git to collapse them to uniformity. Then enables the
$Id$ expansion on checkout, and checks that what is checked out has
coped with the various forms.
Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* maint-1.5.1:
git-svn: avoid md5 calculation entirely if SVN doesn't provide one
Fix stupid typo in lookup_tag()
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There's no point in calculating an MD5 if we're not going to use
it. We'll also avoid the possibility of there being a bug in the
Perl MD5 library not being able to handle zero-sized files.
This is a followup to 20b3d206acbbb042c7ad5f42d36ff8d036a538c5,
which allows us to track repositories that do not provide MD5
checksums.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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* 'maint' of git://repo.or.cz/git-gui:
git-gui: Guess our share/git-gui/lib path at runtime if possible
Correct key bindings to Control-<foo>
git-gui: Tighten internal pattern match for lib/ directory
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Johannes Sixt asked me to try to avoid embedding the runtime location
of git-gui's library directory in the executable script. Not embedding
it helps the MinGW to be relocatable to another directory should a user
wish to install the programs in a directory other than the location the
packager wanted them to be installed into.
Most of this is a hack. We try to determine if the path of our master
git-gui script will be able to locate the lib by ../share/git-gui/lib.
This should be true if $(gitexecdir) and $(libdir) have the same prefix.
If they do then we defer the assignment of $(libdir) until runtime, and
we get it from $argv0 rather than embedding it into the script itself.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Alberto Bertogli reported on #git that git-gui was exiting with
alt-q, while gitk on the same system was exiting with ctrl-q.
That was not what I wanted. I really wanted M1B to be bound to
the Control key on most non-Mac OS X platforms, but according to
Sam Vilain M1 on most systems means alt. Since gitk always does
control, I'm doing the same thing for all non-Mac OS X systems.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Our GITGUI_LIBDIR macro was testing only for @@ at the start of
the path, assuming nobody would ever find that to be a reasonable
prefix for a directory to install our library into. That is most
likely a valid assumption, but its even more unlikely they would
have the start be @@GITGUI_ and the end be @@. Note that we
cannot use the full string here because that would get expanded
by the sed replacement in our Makefile.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Those are builtins. Remove them from PROGRAMS variable
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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Since this is a trivial variation of the general pserver
authentication, there is really no reason not to support
it.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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