This shrinks "struct object" to the absolutely minimal size possible.
It now contains /only/ the object flags and the SHA1 hash name of the
object.
The "refs" field, which is really needed only for fsck, is maintained in
a separate hashed lookup-table, allowing all normal users to totally
ignore it.
This helps memory usage, although not as much as I hoped: it looks like
the allocation overhead of malloc (and the alignment constraints in
particular) means that while the structure size shrinks, the actual
allocation overhead mostly does not.
[ That said: memory usage is actually down, but not as much as it should
be: I suspect just one of the object types actually ended up shrinking
its effective allocation size.
To get to the next level, we probably need specialized allocators that
don't pad the allocation more than necessary. ]
The separation makes for some code cleanup, though, and makes the ref
tracking that fsck wants a clearly separate thing.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-tar-tree adds an extended pax header to archives if its first
parameter points to a commit. It confuses older tars and isn't
very useful in the case of git anyway, so stop doing it.
Idea: Junio, implementation: Junio. I just wrote it up. :-)
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Detect changed prefix and/or changed build flags in the middle
of the build (or between 'make' and 'make install'), and if change
is detected, make sure all objects are compiled with same build
flags and same prefix, thus avoiding inconsistent/broken build.
[jc: removed otherwise unnecessary Makefile target to test the
change this patch introduces. ]
Signed-off-by: Yakov Lerner <iler.ml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
By being an internal command git-get-commit-id can make use of
struct ustar_header and other stuff and stops wasting precious
disk space.
Note: I recycled one of the two "tar-tree" entries instead of
splitting that cleanup into a separate patch.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The framework to create lockfiles that are removed at exit is
first used to reliably write the index file, but it is
applicable to other things, so stop calling it "cache_file".
This also rewords a few remaining error message that called the
index file "cache file".
Signed-off-by: Junio C Hamano <junkio@cox.net>
This ifdef's out more functions that are not used while !USE_MULTI
in http code. Also the dependency of http related objects on http.h
header file was missing in the Makefile.
Signed-off-by: Junio C Hamano <junkio@cox.net>
* jc/cache-tree: (26 commits)
builtin-rm: squelch compiler warnings.
git-write-tree writes garbage on sparc64
Fix crash when reading the empty tree
fsck-objects: do not segfault on missing tree in cache-tree
cache-tree: a bit more debugging support.
read-tree: invalidate cache-tree entry when a new index entry is added.
Fix test-dump-cache-tree in one-tree disappeared case.
fsck-objects: mark objects reachable from cache-tree
cache-tree: replace a sscanf() by two strtol() calls
cache-tree.c: typefix
test-dump-cache-tree: validate the cached data as well.
cache_tree_update: give an option to update cache-tree only.
read-tree: teach 1-way merege and plain read to prime cache-tree.
read-tree: teach 1 and 2 way merges about cache-tree.
update-index: when --unresolve, smudge the relevant cache-tree entries.
test-dump-cache-tree: report number of subtrees.
cache-tree: sort the subtree entries.
Teach fsck-objects about cache-tree.
index: make the index file format extensible.
cache-tree: protect against "git prune".
...
Conflicts:
Makefile, builtin.h, git.c: resolved the same way as in next.
Otherwise, if make is suspended, or killed with prejudice, or if the
system crashes, you could be left with an up-to-date, yet corrupt,
generated file.
I left off the `clean' addition, because I believe "make clean" should
not remove wildcard patterns like "*+", on the off-chance that someone
uses names like that for files they care about. Besides, in practice,
those temporary files are left behind so rarely that they're not a bother,
and they're removed again as part of the next build.
[jc: sign-off?]
Signed-off-by: Junio C Hamano <junkio@cox.net>
As both DESTDIR and the prefix are supposed to be absolute pathnames
they can simply be concatenated without an extra / (like in the main Makefile).
The extra slash may even break installation on Windows.
[jc: adjusted an earlier workaround for this problem in the dist-doc
target in the main Makefile as well. ]
Signed-off-by: Martin Waitz <tali@admingilde.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes "git format-patch" a built-in.
* js/fmt-patch:
git-rebase: use canonical A..B syntax to format-patch
git-format-patch: now built-in.
fmt-patch: Support --attach
fmt-patch: understand old <his> notation
Teach fmt-patch about --keep-subject
Teach fmt-patch about --numbered
fmt-patch: implement -o <dir>
fmt-patch: output file names to stdout
Teach fmt-patch to write individual files.
Use RFC2822 dates from "git fmt-patch".
git-fmt-patch: thinkofix to show [PATCH] properly.
rename internal format-patch wip
Minor tweak on subject line in --pretty=email
Tentative built-in format-patch.
This makes 'git add' and 'git rm' built-ins.
* lt/dirwalk:
Add builtin "git rm" command
Move pathspec matching from builtin-add.c into dir.c
Prevent bogus paths from being added to the index.
builtin-add: fix unmatched pathspec warnings.
Remove old "git-add.sh" remnants
builtin-add: warn on unmatched pathspecs
Do "git add" as a builtin
Clean up git-ls-file directory walking library interface
libify git-ls-files directory traversal
Moving "git-cmd" commands out of the path and into a special
git exec path, should include the builtins.
[jc: fixed the case where bindir == gitexecdir - ln -f fails
with a complaint that src and dst are the same, likewise for
the fallback cp.]
Signed-off-by: Junio C Hamano <junkio@cox.net>
For systems which lack inet_ntop(), this adds compat/inet_ntop.c,
and related build constant, NO_INET_NTOP. Older Cygwin(s) lack
inet_ntop().
Signed-off-by: Yakov Lerner <iler.ml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is what this branch is all about. It records the
evil merge needed to adjust built-in git-add and git-rm for
the cache-tree extension.
* lt/dirwalk:
Add builtin "git rm" command
Move pathspec matching from builtin-add.c into dir.c
Prevent bogus paths from being added to the index.
builtin-add: fix unmatched pathspec warnings.
Remove old "git-add.sh" remnants
builtin-add: warn on unmatched pathspecs
Do "git add" as a builtin
Clean up git-ls-file directory walking library interface
libify git-ls-files directory traversal
Conflicts:
Makefile
builtin.h
git.c
update-index.c
* jc/cache-tree: (24 commits)
Fix crash when reading the empty tree
fsck-objects: do not segfault on missing tree in cache-tree
cache-tree: a bit more debugging support.
read-tree: invalidate cache-tree entry when a new index entry is added.
Fix test-dump-cache-tree in one-tree disappeared case.
fsck-objects: mark objects reachable from cache-tree
cache-tree: replace a sscanf() by two strtol() calls
cache-tree.c: typefix
test-dump-cache-tree: validate the cached data as well.
cache_tree_update: give an option to update cache-tree only.
read-tree: teach 1-way merege and plain read to prime cache-tree.
read-tree: teach 1 and 2 way merges about cache-tree.
update-index: when --unresolve, smudge the relevant cache-tree entries.
test-dump-cache-tree: report number of subtrees.
cache-tree: sort the subtree entries.
Teach fsck-objects about cache-tree.
index: make the index file format extensible.
cache-tree: protect against "git prune".
Add test-dump-cache-tree
Use cache-tree in update-index.
...
This makes tar-tree a built-in. As an added bonus, you can now
say:
git tar-tree --remote=remote-repository <ent> [<base>]
This does not work with git-daemon yet, but should work with
localhost and git over ssh transports.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This changes semantics very subtly, because it adds a new atomicity
guarantee.
In particular, if you "git rm" several files, it will now do all or
nothing. The old shell-script really looped over the removed files one by
one, and would basically randomly fail in the middle if "-f" was used and
one of the files didn't exist in the working directory.
This C builtin one will not re-write the index after each remove, but
instead remove all files at once. However, that means that if "-f" is used
(to also force removal of the file from the working directory), and some
files have already been removed from the workspace, it won't stop in the
middle in some half-way state like the old one did.
So what happens is that if the _first_ file fails to be removed with "-f",
we abort the whole "git rm". But once we've started removing, we don't
leave anything half done. If some of the other files don't exist, we'll
just ignore errors of removal from the working tree.
This is only an issue with "-f", of course.
I think the new behaviour is strictly an improvement, but perhaps more
importantly, it is _different_. As a special case, the semantics are
identical for the single-file case (which is the only one our test-suite
seems to test).
The other question is what to do with leading directories. The old "git
rm" script didn't do anything, which is somewhat inconsistent. This one
will actually clean up directories that have become empty as a result of
removing the last file, but maybe we want to have a flag to decide the
behaviour?
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
c3c8835fbb broke the default template
location which is in builtin-init-db.o, by not supplying the
compilation-time constant to the right build commands.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Basically this just renames init-db.c to builtin-init-db.c and makes
some strings const.
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Importing a quilt patch series into git is not very difficult
but parsing the patch descriptions and all of the other
minutia take a bit of effort to get right, so this automates it.
Since git and quilt complement each other it makes sense
to make it easy to go back and forth between the two.
If a patch is encountered that it cannot derive the author
from the user is asked.
Signed-off-by: Junio C Hamano <junkio@cox.net>
[jc: rewrote by stealing from what I run to update html and
man branches automatically]
Signed-off-by: Tilman Sauerbeck <tilman@code-monkey.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This was surprisingly easy. The diff is truly minimal: rename "main()" to
"cmd_rev_list()" in rev-list.c, and rename the whole file to reflect its
new built-in status.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
First try. Let's see how well this works.
In many ways, the hard parts of "git commit" are not so different from
this, and a builtin commit would share a lot of the code, I think.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This moves the core directory traversal and filename exclusion logic
into the general git library, making it available for other users
directly.
If we ever want to do "git commit" or "git add" as a built-in (and we
do), we want to be able to handle most of git-ls-files as a library.
NOTE! Not all of git-ls-files is libified by this. The index matching
and pathspec prefix calculation is still in ls-files.c, but this is a
big part of it.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* jc/grep: (22 commits)
Fix silly typo in new builtin grep
builtin-grep: unparse more command line options.
builtin-grep: use external grep when we can take advantage of it
builtin-grep: -F (--fixed-strings)
builtin-grep: -w fix
builtin-grep: typofix
builtin-grep: tighten argument parsing.
builtin-grep: documentation
Teach -f <file> option to builtin-grep.
builtin-grep: -L (--files-without-match).
builtin-grep: binary files -a and -I
builtin-grep: terminate correctly at EOF
builtin-grep: tighten path wildcard vs tree traversal.
builtin-grep: support -w (--word-regexp).
builtin-grep: support -c (--count).
builtin-grep: allow more than one patterns.
builtin-grep: allow -<n> and -[ABC]<n> notation for context lines.
builtin-grep: printf %.*s length is int, not ptrdiff_t.
builtin-grep: do not use setup_revisions()
builtin-grep: support '-l' option.
...
* fix:
Fix pack-index issue on 64-bit platforms a bit more portably.
Install git-send-email by default
Fix compilation on newer NetBSD systems
git config syntax updates
Another config file parsing fix.
checkout: use --aggressive when running a 3-way merge (-m).
After 567ffeb772 and
4bc87a28be, git-send-email no
longer requires any non-standard Perl modules, so there's no
reason to special-case it.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
NetBSD >=2.0 has iconv() in libc. A libiconv is not required and
does not exist.
See: http://netbsd.gw.com/cgi-bin/man-cgi?iconv+3+NetBSD-2.0
[jc: with a bit of simplification later discussed on the list.]
Signed-off-by: Dennis Stosberg <dennis@stosberg.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
After 567ffeb772 and
4bc87a28be, git-send-email no
longer requires any non-standard Perl modules, so there's no
reason to special-case it.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* np/delta:
improve diff-delta with sparse and/or repetitive data
tiny optimization to diff-delta
replace adler32 with Rabin's polynomial in diff-delta
use delta index data when finding best delta matches
split the diff-delta interface
This adds "binary patch" to the diff output and teaches apply
what to do with them.
On the diff generation side, traditionally, we said "Binary
files differ\n" without giving anything other than the preimage
and postimage object name on the index line. This was good
enough for applying a patch generated from your own repository
(very useful while rebasing), because the postimage would be
available in such a case. However, this was not useful when the
recipient of such a patch via e-mail were to apply it, even if
the preimage was available.
This patch allows the diff to generate "binary" patch when
operating under --full-index option. The binary patch follows
the usual extended git diff headers, and looks like this:
"GIT binary patch\n"
<length byte><data>"\n"
...
"\n"
Each line is prefixed with a "length-byte", whose value is upper
or lowercase alphabet that encodes number of bytes that the data
on the line decodes to (1..52 -- 'A' means 1, 'B' means 2, ...,
'Z' means 26, 'a' means 27, ...). <data> is 1 or more groups of
5-byte sequence, each of which encodes up to 4 bytes in base85
encoding. Because 52 / 4 * 5 = 65 and we have the length byte,
an output line is capped to 66 characters. The payload is the
same diff-delta as we use in the packfiles.
On the consumption side, git-apply now can decode and apply the
binary patch when --allow-binary-replacement is given, the diff
was generated with --full-index, and the receiving repository
has the preimage blob, which is the same condition as it always
required when accepting an "Binary files differ\n" patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When inspecting a project whose build infrastructure used to
assume that .git/HEAD is a symlink ref, core.prefersymlinkrefs
in the config file of such a project would help to bisect its
history.
Signed-off-by: Junio C Hamano <junkio@cox.net>
(cherry picked from 9f0bb90d16 commit)
We used to depend on bignum from openssl for rev-list to compute
merge-order, but there is no reason to use different build
recipe from other programs anymore. Just build it with git-%$X
rule like everybody else.
Noticed by Alexey Dobriyan.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When inspecting a project whose build infrastructure used to
assume that .git/HEAD is a symlink ref, core.prefersymlinkrefs
in the config file of such a project would help to bisect its
history.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Remove the shell-script version, make the hardlink from the git
binary, and update the documentation to describe a new option.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This attempts to set up built-in "git grep" to further reduce
our dependence on the shell, while at the same time optionally
allowing to run grep against object database. You could do
funky things like these:
git grep --cached -e pattern ;# grep from index
git grep -e pattern master ;# or in a rev
git grep -e pattern master next ;# or in multiple revs
git grep -e pattern pu^@ ;# even like this with an
;# extension from another topic ;-)
git grep -e pattern master..next ;# or even from rev ranges
git grep -e pattern master~20:Documentation
;# or an arbitrary tree
git grep -e pattern next:git-commit.sh
;# or an arbitrary blob
Right now, it does not understand and/or obey many options grep
should accept, and the pattern must be given with -e option due
to the way the parameter parser is structured, both of which
obviously need to be fixed for usability.
But this is going in the right direction. The shell script
version is one of the worst Portability offender in the git
barebone Porcelainish; it uses xargs -0 to pass paths around and
shell arrays to sift flags and parameters.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds a builtin "push" command, which is largely just a C'ification of
the "git-push.sh" script.
Now, the reason I did it as a built-in is partly because it's yet another
step on relying less on shell, but it's actually mostly because I've
wanted to be able to push to _multiple_ repositories, and the most obvious
and simplest interface for that would seem be to just have a "remotes"
file that has multiple URL entries.
(For "pull", having multiple entries should either just select the first
one, or you could fall back on the others on failure - your choice).
And quite frankly, it just became too damn messy to do that in shell.
Besides, we actually have a fair amount of infrastructure in C, so it just
wasn't that hard to do.
Of course, this is almost totally untested. It probably doesn't work for
anything but the one trial I threw at it. "Simple" doesn't necessarily
mean "obviously correct".
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This brings another small repacking speedup for sensibly the same pack
size. On the Linux kernel repo, git-repack -a -f is 3.7% faster for a
0.4% larger pack.
Credits to Geert Bosch who brought the Rabin's polynomial idea to my
attention.
This also eliminate the issue of adler32() reading past the data buffer,
as noticed by Johannes Schindelin.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Also it learned to do -v (verbose) to report:
- number of loose objects
- disk occupied by loose objects
- number of objects in local packs
- number of loose objects that are also in pack
- unrecognised garbage in .git/objects/??/.
Signed-off-by: Junio C Hamano <junkio@cox.net>
* master:
commit-tree: allow generic object name for the tree as well.
Makefile: remove and create xdiff library from scratch.
t0000-basic: Add ls-tree recursive test back.
Libified diff-index: backward compatibility fix.
Libify diff-index.
Libify diff-files.
Makefile: remove and create libgit.a from scratch.
Document the configuration file
Document git-var -l listing also configuration variables
rev-parse: better error message for ambiguous arguments
make update-index --chmod work with multiple files and --stdin
socksetup: don't return on set_reuse_addr() error
Fix "git show --stat"
git-update-index --unresolve
Add git-unresolve <paths>...
Add colordiff for git to contrib/colordiff.
gitk: Let git-rev-list do the argument list parsing
Foolishly I renamed diff.o around which caused an old diff.o
taken out of libgit.a and got linked into resulting binary and
exhibited mysterious breakage for many people. This borrows
from the kernel Makefile (scripts/Makefile.build) to first remove
the target and then recreate.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This was useful in diagnosing the corrupt index.aux format
problem. But do not bother building or installing it by
default.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The cache_tree data structure is to cache tree object names that
would result from the current index file.
The idea is to have an optional file to record each tree object
name that corresponds to a directory path in the cache when we
run write_cache(), and read it back when we run read_cache().
During various index manupulations, we selectively invalidate
the parts so that the next write-tree can bypass regenerating
tree objects for unchanged parts of the directory hierarchy.
We could perhaps make the cache-tree data an optional part of
the index file, but that would involve the index format updates,
so unless we need it for performance reasons, the current plan
is to use a separate file, $GIT_DIR/index.aux to store this
information and link it with the index file with the checksum
that is already used for index file integrity check.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is the first installment to libify diff brothers.
The updated diff-files uses revision.c::setup_revisions()
infrastructure to parse its command line arguments, which means
the pathname arguments are checked more strictly than before.
The tests are adjusted to separate possibly missing paths from
the rest of arguments with double-dashes, to show the kosher
way.
As Linus pointed out, renaming diff.c to diff-lib.c was simply
stupid, so I am renaming it back. The new diff-lib.c is to
contain pieces extracted from diff brothers.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Right now it split it into "builtin-log.c" for log-related commands
("log", "show" and "whatchanged"), and "builtin-help.c" for the
informational commands (usage printing and "help" and "version").
This just makes things easier to read, I find.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This target lists undocumented commands, and/or whose document
is not referenced from the main git documentation.
For now, there are some exceptions I added primarily because I
lack the energy to document them myself:
- merge backends (we should really document them)
- ssh-push/ssh-pull (does anybody still use them?)
- annotate and blame (maybe after one of them eats the other ;-)
Signed-off-by: Junio C Hamano <junkio@cox.net>
Nobody except diff-stages used it -- the callers instead filtered
the input to diffcore themselves. Make diff-stages do that as
well and retire diffcore-pathspec.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This separates out the part that deals with one-commit diff-tree
(and --stdin form) into a separate log-tree module.
There are two goals with this. The more important one is to be
able to make this part available to "git log --diff", so that we
can have a native "git whatchanged" command. Another is to
simplify the commit log generation part simpler.
Signed-off-by: Junio C Hamano <junkio@cox.net>
With an old curl version, git-http-push is not compiled. But git-http-fetch
still needs to be linked with expat if NO_EXPAT is not defined.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This command removes untracked files from the working tree. This
implementation is based on cg-clean with some simplifications. The
documentation is included.
[jc: with trivial documentation fix, noticed by Jakub Narebski]
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This refactors the line-by-line callback mechanism used in
combine-diff so that other programs can reuse it more easily.
Signed-off-by: Junio C Hamano <junkio@cox.net>
If git is not built with NO_EXPAT, this patch changes git-http-fetch to
attempt using DAV to get a list of remote packs and fall back to using
objects/info/packs if the DAV request fails.
Signed-off-by: Nick Hengeveld <nickh@reactrix.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Useful for diagnostics/troubleshooting to know which client versions are
hitting your server.
Signed-off-by: Nick Hengeveld <nickh@reactrix.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The dependency was not properly updated when we added this
library, breaking parallel build with $(MAKE) -j.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Introduce tree-walk.[ch] and move "struct tree_desc" and
associated functions from various places.
Rename DIFF_FILE_CANON_MODE(mode) macro to canon_mode(mode) and
move it to cache.h. This macro returns the canonicalized
st_mode value in the host byte order for files, symlinks and
directories -- to be compared with a tree_desc entry.
create_ce_mode(mode) in cache.h is similar but is intended to be
used for index entries (so it does not work for directories) and
returns the value in the network byte order.
Signed-off-by: Junio C Hamano <junkio@cox.net>
For some reason, I need ALL_LDFLAGS in the git target only on
AIX. Once it builds, only one test "fails" on AIX 5.1 with
1.3.0.rc1, t5500-fetch-pack.sh, but it looks like it's some
odd tool problem in the tester + my setup and not a real bug.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
By changing the dependency "$(LIB_H)" to "$(LIBS)", at least one version
of make thought that a file named "-lz" would be needed.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This uses a simplified libxdiff setup to generate unified diffs _without_
doing fork/execve of GNU "diff".
This has several huge advantages, for example:
Before:
[torvalds@g5 linux]$ time git diff v2.6.16.. > /dev/null
real 0m24.818s
user 0m13.332s
sys 0m8.664s
After:
[torvalds@g5 linux]$ time git diff v2.6.16.. > /dev/null
real 0m4.563s
user 0m2.944s
sys 0m1.580s
and the fact that this should be a lot more portable (ie we can ignore all
the issues with doing fork/execve under Windows).
Perhaps even more importantly, this allows us to do diffs without actually
ever writing out the git file contents to a temporary file (and without
any of the shell quoting issues on filenames etc etc).
NOTE! THIS PATCH DOES NOT DO THAT OPTIMIZATION YET! I was lazy, and the
current "diff-core" code actually will always write the temp-files,
because it used to be something that you simply had to do. So this current
one actually writes a temp-file like before, and then reads it into memory
again just to do the diff. Stupid.
But if this basic infrastructure is accepted, we can start switching over
diff-core to not write temp-files, which should speed things up even
further, especially when doing big tree-to-tree diffs.
Now, in the interest of full disclosure, I should also point out a few
downsides:
- the libxdiff algorithm is different, and I bet GNU diff has gotten a
lot more testing. And the thing is, generating a diff is not an exact
science - you can get two different diffs (and you will), and they can
both be perfectly valid. So it's not possible to "validate" the
libxdiff output by just comparing it against GNU diff.
- GNU diff does some nice eye-candy, like trying to figure out what the
last function was, and adding that information to the "@@ .." line.
libxdiff doesn't do that.
- The libxdiff thing has some known deficiencies. In particular, it gets
the "\No newline at end of file" case wrong. So this is currently for
the experimental branch only. I hope Davide will help fix it.
That said, I think the huge performance advantage, and the fact that it
integrates better is definitely worth it. But it should go into a
development branch at least due to the missing newline issue.
Technical note: this is based on libxdiff-0.17, but I did some surgery to
get rid of the extraneous fat - stuff that git doesn't need, and seriously
cutting down on mmfile_t, which had much more capabilities than the diff
algorithm either needed or used. In this version, "mmfile_t" is just a
trivial <pointer,length> tuple.
That said, I tried to keep the differences to simple removals, so that you
can do a diff between this and the libxdiff origin, and you'll basically
see just things getting deleted. Even the mmfile_t simplifications are
left in a state where the diffs should be readable.
Apologies to Davide, whom I'd love to get feedback on this all from (I
wrote my own "fill_mmfile()" for the new simpler mmfile_t format: the old
complex format had a helper function for that, but I did my surgery with
the goal in mind that eventually we _should_ just do
mmfile_t mf;
buf = read_sha1_file(sha1, type, &size);
mf->ptr = buf;
mf->size = size;
.. use "mf" directly ..
which was really a nightmare with the old "helpful" mmfile_t, and really
is that easy with the new cut-down interfaces).
[ Btw, as any hawk-eye can see from the diff, this was actually generated
with itself, so it is "self-hosting". That's about all the testing it
has gotten, along with the above kernel diff, which eye-balls correctly,
but shows the newline issue when you double-check it with "git-apply" ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* fk/blame:
blame: Rename detection (take 2)
rev-lib: Make it easy to do rename tracking (take 2)
Make it possible to not clobber object.util in sort_in_topological_order (take 2)
Add git-imap-send, derived from isync 1.0.1.
repack: prune loose objects when -d is given
try_to_simplify_commit(): do not skip inspecting tree change at boundary.
Fix t1200 test for breakage caused by removal of full-stop at the end of fast-forward message.
Describe how to add extra mail header lines in mail generated by git-format-patch.
Document the --attach flag.
allow double click on current HEAD id after git-pull
git-imap-send drops a patch series generated by git-format-patch into an
IMAP folder. This allows patch submitters to send patches through their
own mail program.
git-imap-send uses the following values from the GIT repository
configuration:
The target IMAP folder:
[imap]
Folder = "INBOX.Drafts"
A command to open an ssh tunnel to the imap mail server.
[imap]
Tunnel = "ssh -q user@imap.server.com /usr/bin/imapd ./Maildir
2> /dev/null"
[imap]
Host = imap.server.com
User = bob
Password = pwd
Port = 143
* jc/fsck:
fsck-objects: Remove --standalone
refs.c::do_for_each_ref(): Finish error message lines with "\n"
Nicer output from 'git'
Use #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
Remove trailing dot after short description
Fix some inconsistencies in the docs
contrib/git-svn: fix a harmless warning on rebuild (with old repos)
contrib/git-svn: remove the --no-stop-on-copy flag
contrib/git-svn: fix svn compat and fetch args
Don't recurse into parents marked uninteresting.
diff-delta: bound hash list length to avoid O(m*n) behavior
test-delta needs zlib to compile
git-fmt-merge-msg cleanup
This brings http-push functionality more in line with the ssh/git version,
by borrowing bits from send-pack and rev-list to process refspecs and
revision history in more standard ways. Also, the status of remote objects
is determined using PROPFIND requests for the object directory rather than
HEAD requests for each object - while it may be less efficient for small
numbers of objects, this approach is able to get the status of all remote
loose objects in a maximum of 256 requests.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The default output mode is slightly different from git-annotate's.
However, git-annotate's output mode can be obtained by using the
'-c' flag.
Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is a companion patch to e29e1147e4
which made diffcore similarity estimator independent from the packfile
deltifier. There is no reason for us to be counting the xdelta anymore.
Signed-off-by: Junio C Hamano <junkio@cox.net>
* lt/rev-list:
setup_revisions(): handle -n<n> and -<n> internally.
git-log (internal): more options.
git-log (internal): add approxidate.
Rip out merge-order and make "git log <paths>..." work again.
Tie it all together: "git log"
Introduce trivial new pager.c helper infrastructure
git-rev-list libification: rev-list walking
Splitting rev-list into revisions lib, end of beginning.
rev-list split: minimum fixup.
First cut at libifying revlist generation
Now blame will depend on the new revision walker infrastructure,
we need to make it depend on earlier parts of Linus' rev-list
topic branch, hence this merge.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Well, assuming breaking --merge-order is fine, here's a patch (on top of
the other ones) that makes
git log <filename>
actually work, as far as I can tell.
I didn't add the logic for --before/--after flags, but that should be
pretty trivial, and is independent of this anyway.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is to rework diffcore break/rename/copy detection code
so that it does not affected when deltifier code gets improved.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is what the previous diffs all built up to.
We can do "git log" as a trivial small helper function inside git.c,
because the infrastructure is all there for us to use as a library.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This introduces the new function
void setup_pager(void);
to set up output to be written through a pager applocation.
All in preparation for doing the simple scripts in C.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When on Darwin platforms don't include Fink or DarwinPorts
into the link path unless the related library directory
is actually present. The linker on MacOS 10.4 complains
if it is given a directory which does not exist.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This really just splits things up partially, and creates the
interface to set things up by parsing the command line.
No real code changes so far, although the parsing of filenames is a bit
stricter. In particular, if there is a "--", then we do not accept any
filenames before it, and if there isn't any "--", then we check that _all_
paths listed are valid, not just the first one.
The new argument parsing automatically also gives us "--default" and
"--not" handling as in git-rev-parse.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The merge 712b1dd389 was done
incorrectly, and lost this program from Makefile.
Big thanks go to Tony Luck for noticing it, and Linus for
diagnosing it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds a git-rm command which provides convenience similar to
git-add, (and a bit more since it takes care of the rm as well if
given -f).
Like git-add, git-rm expands the given path names through
git-ls-files. This means it only acts on files listed in the
index. And it does act recursively on directories by default, (no -r
needed as in the case of rm itself). When it recurses, it does not
remove empty directories that are left behind.
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-cvsserver is highly functional. However, not all methods are implemented,
and for those methods that are implemented, not all switches are implemented.
All the common read operations are implemented, and add/remove/commit are
supported.
Testing has been done using both the CLI CVS client, and the Eclipse CVS
plugin. Most functionality works fine with both of these clients.
Currently git-cvsserver only works over SSH connections, see the
Documentation for more details on how to configure your client. It
does not support pserver for anonymous access but it should not be
hard to implement. Anonymous access will need tighter input validation.
In our very informal tests, it seems to be significantly faster than a real
CVS server.
This utility depends on a version of git-cvsannotate that supports -S and on
DBD::SQLite.
Licensed under GPLv2. Copyright The Open University UK.
Authors: Martyn Smith <martyn@catalyst.net.nz>
Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
In my attempt to port git to IRIX, I broke it. Sorry.
Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
- Solaris 9 and up do not need -liconv, so NEEDS_LIBICONV should be set
only for S8.
- Move the declaration of the uname variables to early in the Makefile
so they can be referenced by prefix and gitexecdir variables.
- gitexecdir defaults to being same as bindir, it might as well reference
that variable.
[jc: corrupt patch, sneakily tried to remove inclusion of GIT-VERSION-FILE
I do not know why I am applying this...]
Signed-off-by: Paul Jakma <paul@quagga.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
I have also been working on a blame program. The algorithm is pretty
much the one described by Junio in his blame.perl. My variant doesn't
handle renames, but it shouldn't be too hard to add that. The output
is minimal, just the line number followed by the commit SHA1.
An interesting observation is that the output from my git-blame and
your git-annotate doesn't match on all files in the git
repository. One example where several lines differ is read-cache.c. I
haven't investigated it further to find out which one is correct.
The code should be considered as a work in progress. It certainly has
a couple of rough edges. The output looks fairly sane on the few files
I have tested it on, but it wouldn't be too surprising if it gets some
cases wrong.
[jc: adding it to pu for wider comments. I did minimum
whitespace fixups but it still needs an indent run and
-Wdeclaration-after-statement fixups.]
Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This reads data in the format a (non recursive) ls-tree outputs
and writes a tree object to the object database. The created
tree object name is output to the standard output.
For convenience, the input data does not need to be sorted; the
command sorts the input lines internally.
By request from Tommi Virtanen.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Do not even test for subprocess (trying to execute python).
Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Some versions of GNU make do not understand $(call), and have problems to
interpret rules like this:
some_target: CFLAGS += -Dsome=defs
[jc: simplified substitution a bit. ]
Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
In some setups (notably server setups) you do not need that dependency.
Gracefully handle the absence of python when NO_PYTHON is defined.
Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Some versions of diff do not correctly detect a missing new-line at the end
of the file under certain circumstances.
When defining NO_ACCURATE_DIFF, work around this bug.
Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Systems using some uClibc versions do not properly support
iconv stuff. This patch allows Git to be built on those
systems by passing NO_ICONV=YesPlease to make. The only
drawback is mailinfo won't do charset conversion in those
systems.
Signed-off-by: Fernando J. Pereda <ferdy@gentoo.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
On Tue, 14 Feb 2006, Junio C Hamano wrote:
> Linus Torvalds <torvalds@osdl.org> writes:
>
> > If somebody is interested in making the "lots of filename changes" case go
> > fast, I'd be more than happy to walk them through what they'd need to
> > change. I'm just not horribly motivated to do it myself. Hint, hint.
>
> In case anybody is wondering, I share the same feeling. I
> cannot say I'd be "more than happy to" clean up potential
> breakages during the development of such changes, but if the
> change eventually would help certain use cases, I can be
> persuaded to help debugging such a mess ;-).
Actually, I got interested in seeing how hard this is, and wrote a simple
first cut at doing a tree-optimized merger.
Let me shout a bit first:
THIS IS WORKING CODE, BUT BE CAREFUL: IT'S A TECHNOLOGY DEMONSTRATION
RATHER THAN THE FINAL PRODUCT!
With that out of the way, let me descibe what this does (and then describe
the missing parts).
This is basically a three-way merge that works entirely on the "tree"
level, rather than on the index. A lot of the _concepts_ are the same,
though, and if you're familiar with the results of an index merge, some of
the output will make more sense.
You give it three trees: the base tree (tree 0), and the two branches to
be merged (tree 1 and tree 2 respectively). It will then walk these three
trees, and resolve them as it goes along.
The interesting part is:
- it can resolve whole sub-directories in one go, without actually even
looking recursively at them. A whole subdirectory will resolve the same
way as any individual files will (although that may need some
modification, see later).
- if it has a "content conflict", for subdirectories that means "try to
do a recursive tree merge", while for non-subdirectories it's just a
content conflict and we'll output the stage 1/2/3 information.
- a successful merge will output a single stage 0 ("merged") entry,
potentially for a whole subdirectory.
- it outputs all the resolve information on stdout, so something like the
recursive resolver can pretty easily parse it all.
Now, the caveats:
- we probably need to be more careful about subdirectory resolves. The
trivial case (both branches have the exact same subdirectory) is a
trivial resolve, but the other cases ("branch1 matches base, branch2 is
different" probably can't be silently just resolved to the "branch2"
subdirectory state, since it might involve renames into - or out of -
that subdirectory)
- we do not track the current index file at all, so this does not do the
"check that index matches branch1" logic that the three-way merge in
git-read-tree does. The theory is that we'd do a full three-way merge
(ignoring the index and working directory), and then to update the
working tree, we'd do a two-way "git-read-tree branch1->result"
- I didn't actually make it do all the trivial resolve cases that
git-read-tree does. It's a technology demonstration.
Finally (a more serious caveat):
- doing things through stdout may end up being so expensive that we'd
need to do something else. In particular, it's likely that I should
not actually output the "merge results", but instead output a "merge
results as they _differ_ from branch1"
However, I think this patch is already interesting enough that people who
are interested in merging trees might want to look at it. Please keep in
mind that tech _demo_ part, and in particular, keep in mind the final
"serious caveat" part.
In many ways, the really _interesting_ part of a merge is not the result,
but how it _changes_ the branch we're merging into. That's particularly
important as it should hopefully also mean that the output size for any
reasonable case is minimal (and tracks what we actually need to do to the
current state to create the final result).
The code very much is organized so that doing the result as a "diff
against branch1" should be quite easy/possible. I was actually going to do
it, but I decided that it probably makes the output harder to read. I
dunno.
Anyway, let's think about this kind of approach.. Note how the code itself
is actually quite small and short, although it's prbably pretty "dense".
As an interesting test-case, I'd suggest this merge in the kernel:
git-merge-tree $(git-merge-base 4cbf876 7d2babc) 4cbf876 7d2babc
which resolves beautifully (there are no actual file-level conflicts), and
you can look at the output of that command to start thinking about what
it does.
The interesting part (perhaps) is that timing that command for me shows
that it takes all of 0.004 seconds.. (the git-merge-base thing takes
considerably more ;)
The point is, we _can_ do the actual merge part really really quickly.
Linus
PS. Final note: when I say that it is "WORKING CODE", that is obviously by
my standards. IOW, I tested it once and it gave reasonable results - so it
must be perfect.
Whether it works for anybody else, or indeed for any other test-case, is
not my problem ;)
Signed-off-by: Junio C Hamano <junkio@cox.net>
If Git is compiled with NO_CURL=YesPlease and one tries to
clone a http repository, git-clone tries to call the curl
binary. This trivial patch prints an error instead in such
situation.
Signed-off-by: Fernando J. Pereda <ferdy@gentoo.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
With the current Makefile we don't use the shell chosen by the
platform specific defines when we invoke GIT-VERSION-GEN.
Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This revamps the git-status command to take the same set of
parameters as git commit. It gives a preview of what is being
committed with that command. With -v flag, it shows the diff
output between the HEAD commit and the index that would be
committed if these flags were given to git-commit command.
git-commit also acquires -v flag (it used to mean "verify" but
that is the default anyway and there is --no-verify to turn it
off, so not much is lost), which uses the updated git-status -v
to seed the commit log buffer. This is handy for writing a log
message while reviewing the changes one last time.
Now, git-commit and git-status are internally share the same
implementation.
Unlike previous git-commit change, this uses a temporary index
to prepare the index file that would become the real index file
after a successful commit, and moves it to the real index file
once the commit is actually made. This makes it safer than the
previous scheme, which stashed away the original index file and
restored it after an aborted commit.
Signed-off-by: Junio C Hamano <junkio@cox.net>
In a workflow that employs relatively long lived topic branches,
the developer sometimes needs to resolve the same conflict over
and over again until the topic branches are done (either merged
to the "release" branch, or sent out and accepted upstream).
This commit introduces a new command, "git rerere", to help this
process by recording the conflicted automerge results and
corresponding hand-resolve results on the initial manual merge,
and later by noticing the same conflicted automerge and applying
the previously recorded hand resolution using three-way merge.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is essentially 'git whatchanged -n1 --always --cc "$@"'.
Just like whatchanged takes default flags from
whatchanged.difftree configuration, this uses show.difftree
configuration.
Signed-off-by: Junio C Hamano <junkio@cox.net>
A new option '-c' to diff-tree changes the way a merge commit is
displayed when generating a patch output. It shows a "combined
diff" (hence the option letter 'c'), which looks like this:
$ git-diff-tree --pretty -c -p fec9ebf1 | head -n 18
diff-tree fec9ebf... (from parents)
Merge: 0620db3... 8a263ae...
Author: Junio C Hamano <junkio@cox.net>
Date: Sun Jan 15 22:25:35 2006 -0800
Merge fixes up to GIT 1.1.3
diff --combined describe.c
@@@ +98,7 @@@
return (a_date > b_date) ? -1 : (a_date == b_date) ? 0 : 1;
}
- static void describe(char *arg)
- static void describe(struct commit *cmit, int last_one)
++ static void describe(char *arg, int last_one)
{
+ unsigned char sha1[20];
+ struct commit *cmit;
There are a few things to note about this feature:
- The '-c' option implies '-p'. It also implies '-m' halfway
in the sense that "interesting" merges are shown, but not all
merges.
- When a blob matches one of the parents, we do not show a diff
for that path at all. For a merge commit, this option shows
paths with real file-level merge (aka "interesting things").
- As a concequence of the above, an "uninteresting" merge is
not shown at all. You can use '-m' in addition to '-c' to
show the commit log for such a merge, but there will be no
combined diff output.
- Unlike "gitk", the output is monochrome.
A '-' character in the nth column means the line is from the nth
parent and does not appear in the merge result (i.e. removed
from that parent's version).
A '+' character in the nth column means the line appears in the
merge result, and the nth parent does not have that line
(i.e. added by the merge itself or inherited from another
parent).
The above example output shows that the function signature was
changed from either parents (hence two "-" lines and a "++"
line), and "unsigned char sha1[20]", prefixed by a " +", was
inherited from the first parent.
The code as sent to the list was buggy in few corner cases,
which I have fixed since then.
It does not bother to keep track of and show the line numbers
from parent commits, which it probably should.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Needs iconv and third party lib/headers are inside /usr/local
Signed-off-by: Alecs King <alecsk@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Alas, not all shells named sh are capable enough to run
GIT-VERSION-GEN.
Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The recent Cygwin defines DT_UNKNOWN although it does not have d_type
in struct dirent. Give an option to tell us not to use d_type on such
platforms. Hopefully this problem will be transient.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The d_ino field is only used for performance reasons in
fsck-objects. On a typical filesystem, i-number tends to have a
strong correlation with where the actual bits sit on the disk
platter, and we sort the entries to allow us scan things that
ought to be close together together.
If the platform lacks support for it, it is not a big deal.
Just do not use d_ino for sorting, and scan them unsorted.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Disable USE_SYMLINK_HEAD by default. Recommend using it only for
compatibility with older software.
Treat USE_SYMLINK_HEAD like other optional defines - check whether it's
defined, not its value.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The earlier change to separate $(gitexecdir) from $(bindir) had
the installation location of the git wrapper and the rest of the
commands the wrong way (right now, both of them point at the
same location so there is no real harm).
Also gitk needs to be installed in $(bindir).
Signed-off-by: Junio C Hamano <junkio@cox.net>
The git suite may not be in PATH (and thus programs such as
git-send-pack could not exec git-rev-list). Thus there is a need for
logic that will locate these programs. Modifying PATH is not
desirable as it result in behavior differing from the user's
intentions, as we may end up prepending "/usr/bin" to PATH.
- git C programs will use exec*_git_cmd() APIs to exec sub-commands.
- exec*_git_cmd() will execute a git program by searching for it in
the following directories:
1. --exec-path (as used by "git")
2. The GIT_EXEC_PATH environment variable.
3. $(gitexecdir) as set in Makefile (default value $(bindir)).
- git wrapper will modify PATH as before to enable shell scripts to
invoke "git-foo" commands.
Ideally, shell scripts should use the git wrapper to become independent
of PATH, and then modifying PATH will not be necessary.
[jc: with minor updates after a brief review.]
Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is not invoked by any other target (most notably, "make
install" does not), but is provided as a convenience for people
who are building from the source.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When producing a release tarball, include a "version" file, which
GIT-VERSION-GEN can then use to do the right thing when building from a
tarball.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The official maintainer is keeping up-to-date quite well, and now
the older Debian is supported with backports.org, there is no reason
for me to keep debian/ directory around here.
I have not been building and publishing debs since 1.0.4 anyway.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Note: with this commit, the GIT maintainer workflow must change.
GIT-VERSION-GEN is now the file to munge when the default
version needs to be changed, not Makefile. The tag needs to be
pushed into the repository to build the official tarball and
binary package beforehand.
Signed-off-by: Junio C Hamano <junkio@cox.net>
It shows you the most recent tag that is reachable from a particular
commit is.
Maybe this is something that "git-name-rev" should be taught to do,
instead of having a separate command for it. Regardless, I find it useful.
What it does is to take any random commit, and "name" it by looking up the
most recent commit that is tagged and reachable from that commit. If the
match is exact, it will just print out that ref-name directly. Otherwise
it will print out the ref-name, followed by the 8-character "short SHA".
IOW, with something like Junios current tree, I get:
[torvalds@g5 git]$ git-describe parent
refs/tags/v1.0.4-g2414721b
ie the current head of my "parent" branch (ie Junio) is based on v1.0.4,
but since it has a few commits on top of that, it has added the git hash
of the thing to the end: "-g" + 8-char shorthand for the commit
2414721b19.
Doing a "git-describe" on a tag-name will just show the full tag path:
[torvalds@g5 git]$ git-describe v1.0.4
refs/tags/v1.0.4
unless there are _other_ tags pointing to that commit, in which case it
will just choose one at random.
This is useful for two things:
- automatic version naming in Makefiles, for example. We could use it in
git itself: when doing "git --version", we could use this to give a
much more useful description of exactly what version was installed.
- for any random commit (say, you use "gitk <pathname>" or
"git-whatchanged" to look at what has changed in some file), you can
figure out what the last version of the repo was. Ie, say I find a bug
in commit 39ca371c45b04cd50d0974030ae051906fc516b6, I just do:
[torvalds@g5 linux]$ git-describe 39ca371c45b04cd50d0974030ae051906fc516b6
refs/tags/v2.6.14-rc4-g39ca371c
and I now know that it was _not_ in v2.6.14-rc4, but was presumably in
v2.6.14-rc5.
The latter is useful when you want to see what "version timeframe" a
commit happened in.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Minor fixes.
Starting from this one I won't be touching debian/ directory
since the official maintainer seems to be reasonably quick to
package up things. The packaging procedure used there seems to
be quite different from what I have, so I'd like to avoid
potential confusion and reduce work by the official maintainer
and myself.
Signed-off-by: Junio C Hamano <junkio@cox.net>
We want to record the version of the tools the patch was generated with.
While these tools could be rebuilt, git-format-patch stayed the same and
report the wrong version.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
HPA suggests it is simply silly to imitate Linux versioning
scheme where the leading "2" does not mean anything anymore, and
I tend to agree.
The first feature release after 1.0.0 will be 1.1.0, and the
development path leading to 1.1.0 will carry 1.0.GIT as the
version number from now on. Similarly, the third maintenance
release that follows 1.0.0 will not be 1.0.0c as planned, but
will be called 1.0.3. The "maint" branch will merge in fixes
and immediately tagged, so there is no need for 1.0.2.GIT that
is in between 1.0.2 (aka 1.0.0b) and 1.0.3.
Signed-off-by: Junio C Hamano <junkio@cox.net>
- Avoid misleading success message on error (Johannes)
- objects/info/packs: work around bug in http-fetch.c::fetch_indices()
- http-fetch.c: fix objects/info/pack parsing.
- An off-by-one bug found by valgrind (Pavel)
Signed-off-by: Junio C Hamano <junkio@cox.net>
We still advertise "git resolve" as a standalone command, but never
"git octopus", so nobody should be using it and it is safe to
retire it. The functionality is still available as a strategy
backend.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Split out the functions that deal with the socketpair after
finishing git protocol handshake to receive the packed data into
a separate file, and use it in fetch-pack to keep/explode the
received pack data. We earlier had something like that on
clone-pack side once, but the list discussion resulted in the
decision that it makes sense to always keep the pack for
clone-pack, so unpacking option is not enabled on the clone-pack
side, but we later still could do so easily if we wanted to with
this change.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Oh, I hate to do this but I ended up merging big usage string
cleanups from Fredrik, git-am enhancements that made a lot of
sense for non mbox users from HPA, and rebase changes (done
independently by me and Lukas) among other things, so git is
still in perpetual state of 1.0rc. 1.0 will probably be next
Wednesday, but who knows.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Added an AIX clause in the Makefile; that clause likely
will be wrong for any AIX pre-5.2, but I can only test
on 5.3. mailinfo.c was missing the compat header file,
and convert-objects.c needs to define a specific
_XOPEN_SOURCE as well as _XOPEN_SOURCE_EXTENDED.
Signed-off-by: E. Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This attempts to clean up the way various compatibility
functions are defined and used.
- A new header file, git-compat-util.h, is introduced. This
looks at various NO_XXX and does necessary function name
replacements, equivalent of -Dstrcasestr=gitstrcasestr in the
Makefile.
- Those function name replacements are removed from the Makefile.
- Common features such as usage(), die(), xmalloc() are moved
from cache.h to git-compat-util.h; cache.h includes
git-compat-util.h itself.
Signed-off-by: Junio C Hamano <junkio@cox.net>
There is no setenv() in Solaris 5.8. The trivial calls to
setenv() were replaced by putenv() in a much earlier patch,
but setenv() was used again in git.c. This patch just adds
a compat/setenv.c.
The rule for building git$(X) also needs to include compat.
objects and compiler flags. Those are now in makefile vars
COMPAT_OBJS and COMPAT_CFLAGS.
Signed-off-by: E. Jason Riedy <ejr@cs.berkeley.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Alex Riesen wants to keep extra makefile targets in config.mak, but
the file is included before any of our real targets. Having this
at the beginning allows you to do so.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes it possible to define WITH_SEND_EMAIL etc. in config.mak.
Also remove GIT_LIST_TWEAK because it isn't used anymore.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Otherwise we would end up linking all the unneeded stuff into git-daemon
only to link with git_default_config.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Remove $(SIMPLE_PROGRAMS) from $(PROGRAMS) so buildrules don't have
to be overridden.
Put $(SCRIPTS) with the other target-macros so it doesn't get lonely.
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Also rearrange some path settings in the Makefile in the process.
Signed-off-by: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is meant for the end user, who cannot be expected to edit
.git/config by hand.
Example:
git-config-set core.filemode true
will set filemode in the section [core] to true,
git-config-set --unset core.filemode
will remove the entry (failing if it is not there), and
git-config-set --unset diff.twohead ^recar
will remove the unique entry whose value matches the regex "^recar"
(failing if there is no unique such entry).
It is just a light wrapper around git_config_set() and
git_config_set_multivar().
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The decision about whether to build http-push or not belongs in the
Makefile. This follows Junio's suggestion to determine whether curl
is new enough to support http-push.
Signed-off-by: Nick Hengeveld <nickh@reactrix.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Move shared HTTP request functionality out of http-fetch and http-push,
and replace the two fwrite_buffer/fwrite_buffer_dynamic functions with
one fwrite_buffer function that does dynamic buffering. Use slot
callbacks to process responses to fetch object transfer requests and
push transfer requests, and put all of http-push into an #ifdef check
for curl multi support.
Signed-off-by: Nick Hengeveld <nickh@reactrix.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When HPA added Cygwin target, it ran just fine without NO_MMAP for him,
but recently we are getting reports that for some people things break
without it. For now, just suggest it in the Makefile without actually
updating the default.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch provides a C implementation of the 'git' program and
introduces support for putting the git-* commands in a directory
of their own. It also saves some time on executing those commands
in a tight loop and it prints the currently available git commands
in a nicely formatted list.
The location of the GIT_EXEC_PATH (name discussion's closed, thank gods)
can be obtained by running
git --exec-path
which will hopefully give porcelainistas ample time to adapt their
heavy-duty loops to call the core programs directly and thus save
the extra fork() / execve() overhead, although that's not really
necessary any more.
The --exec-path value is prepended to $PATH, so the git-* programs
should Just Work without ever requiring any changes to how they call
other programs in the suite.
Some timing values for 10000 invocations of git-var >&/dev/null:
git.sh: 24.194s
git.c: 9.044s
git-var: 7.377s
The git-<tab><tab> behaviour can, along with the someday-to-be-deprecated
git-<command> form of invocation, be indefinitely retained by adding
the following line to one's .bash_profile or equivalent:
PATH=$PATH:$(git --exec-path)
Experimental libraries can be used by either setting the environment variable
GIT_EXEC_PATH, or by using
git --exec-path=/some/experimental/exec-path
Relative paths are properly grok'ed as exec-path values.
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
A while ago, a rename-detection limit logic was implemented as a
response to this thread:
http://marc.theaimsgroup.com/?l=git&m=112413080630175
where gitweb was found to be using a lot of time and memory to
detect renames on huge commits. git-diff family takes -l<num>
flag, and if the number of paths that are rename destination
candidates (i.e. new paths with -M, or modified paths with -C)
are larger than that number, skips rename/copy detection even
when -M or -C is specified on the command line.
This commit makes the rename detection limit easier to use. You
can have:
[diff]
renamelimit = 30
in your .git/config file to specify the default rename detection
limit. You can override this from the command line; giving 0
means 'unlimited':
git diff -M -l0
We might want to change the default behaviour, when you do not
have the configuration, to limit it to say 20 paths or so. This
would also help the diffstat generation after a big 'git pull'.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch renames the tarball "git" rather than "git-core", and changes
the names of various packages from git-core-foo to git-foo. git-core is
still the true core package; an empty RPM package named "git" pulls in
ALL the git packages -- this makes updates work correctly, and allows
"yum install git" to do the obvious thing.
It also renames the git-(core-)tk package to gitk.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Stuffing -L flag and friends meant for the linking phase into
ALL_CFLAGS is not right; honor LDFLAGS and introduce ALL_LDFLAGS
to separate them out.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Because we use "lost-found" as the directory name to hold
dangling object names, it is confusing to call the command
git-lost+found, although it makes sense and is even cute ;-).
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is GIT 1.0-rc1 in disguise. It is plausible that
relatively new parts of the system still need tweaking and
fixing, but that is why it is not 1.0 but rc ;-).
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch renames git-pack-intersect to git-pack-redundant
as suggested by Petr Baudis. The new name reflects what the
program does, rather than how it does it.
Also fix a small argument parsing bug.
Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch adds the program git-pack-intersect. It is
used to find redundant packs in git repositories.
Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Another snapshot, as slow and steady marth towards 1.0 continues.
Major changes include:
- Jim Radford's RPM split.
- Fredrik's recursive merge strategy is now default for two heads merge.
- Yaacov's SVN importer updates.
Signed-off-by: Junio C Hamano <junkio@cox.net>
A script that can replay commits git into a CVS checkout. Tries to ensure the
sanity of the operation and supports mainly manual usage.
If you are reckless enough, you can ask it to autocommit when everything has
applied cleanly. Combined with a couple more scripts could become part of
a git2cvs gateway.
Should support adds/removes and binary files.
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
There's no standard libexpat for OSX, so if you install it
after-market, it can end up in various directories. Give
paths used by fink and darwinports by default to CFLAGS.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Add support for pushing to a remote repository using HTTP/DAV
Signed-off-by: Nick Hengeveld <nickh@reactrix.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
As discussed on the list, split the foreign SCM interoperability
packages and documentation from the git-core binary package.
Signed-off-by: Junio C Hamano <junkio@cox.net>
I think the original intention was to make CFLAGS overridable
from the make command line, but somehow we ended up accumulating
conditional makefile sections that wrongly appends values to
CFLAGs. These assignments do not work when the user actually
override them from the make command line!
DEFINES are handled the same way; it was seemingly overridable,
but the makefile sections had assignments, which meant
overriding it from the command line broke things.
This simplifies things by limiting the internal futzing to
ALL_CFLAGS, and by removing DEFINES altogether. Overriding
CFLAGS from the command line should start working with this
change.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is primarily to include the 'git clone -l' (without -s) fix,
first spotted and diagnosed by Linus and caused James Bottomley's
repository to become unreadable. It also contains documentation
updates happened on the "master" branch since 0.99.9c
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds the coolest merge strategy ever, "ours". It can take
arbitrary number of foreign heads and merge them into the
current branch, with the resulting tree always taken from our
branch head, hence its name.
What this means is that you can declare that the current branch
supersedes the development histories of other branches using
this merge strategy.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Don't set a non-standard CURLDIR as default, and fix an error
in Solaris 10 by setting NEEDS_LIBICONV.
Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This contains the changes made on the master branch since 0.99.9a.
The workaround for building RPMs has not changed since 0.99.9a,
mainly because I haven't heard back if it was good enough for
kernel.org consumption, or otherwise what changes are needed.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is a companion patch to 4f9dcf7e5c
which stops mentioning the old command names. As promised, we do not
install symlinks to let people use backward compatibility names anymore.
cmd-rename.sh script is still shipped to help people who installed
previous git by hand to clean up the leftover symlinks.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This script was superseded by git-name-rev, which is more versatile,
actually documented, faster, and everything else...
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Done in 0.99.9
==============
Ports
~~~~~
* Cygwin port [HPA].
* OpenBSD build [Merlyn and others].
Fixes
~~~~~
* clone request over git native protocol from a repository with
too many refs did not work; this has been fixed.
* git-daemon got safer for kernel.org use [HPA].
* Extended SHA1 parser was not enforcing uniqueness for
abbreviated SHA1; this has been fixed.
* http transport does not barf on funny characters in URL.
* The ref naming restrictions have been formalized and the
coreish refuses to create funny refs; we still need to audit
importers. See git-check-ref-format(1).
New Features and Commands
~~~~~~~~~~~~~~~~~~~~~~~~~
* .git/config file as a per-repository configuration mechanism,
and some commands understand it [Linus]. See
git(7).
* The core.filemode configuration item can be used to make us a
bit more FAT friendly. See git(7).
* The extended SHA1 notation acquired Peel-the-onion operator
^{type} and ^{}. See git-rev-parse(1).
* SVN importer [Matthias]. See git-svnimport(1).
* .git/objects/[0-9a-f]{2} directories are created on demand,
and removed when becomes empty after prune-packed [Linus].
* Filenames output from various commands without -z option are
quoted when they embed funny characters (TAB and LF) using
C-style quoting within double-quotes, to match the proposed
GNU diff/patch notation [me, but many people contributed in
the discussion].
* git-mv is expected to be a better replacement for git-rename.
While the latter has two parameter restriction, it acts more
like the regular 'mv' that can move multiple things to one
destinatino directory [Josef Weidendorfer].
* git-checkout can take filenames to revert the changes to
them. See git-checkout(1)
* The new program git-am is a replacement for git-applymbox that
has saner command line options and a bit easier to use when a
patch does not apply cleanly.
* git-ls-remote can show unwrapped onions using ^{} notation, to
help Cogito to track tags.
* git-merge-recursive backend can merge unrelated projects.
* git-clone over native transport leaves the result packed.
* git-http-fetch issues multiple requests in parallel when
underlying cURL library supports it [Nick and Daniel].
* git-fetch-pack and git-upload-pack try harder to figure out
better common commits [Johannes].
* git-read-tree -u removes a directory when it makes it empty.
* git-diff-* records abbreviated SHA1 names of original and
resulting blob; this sometimes helps to apply otherwise an
unapplicable patch by falling back to 3-way merge.
* git-format-patch now takes series of from..to rev ranges and
with '-m --stdout', writes them out to the standard output.
This can be piped to 'git-am' to implement cheaper
cherry-picking.
* git-tag takes '-u' to specify the tag signer identity [Linus].
* git-rev-list can take optional pathspecs to skip commits that
do not touch them (--dense) [Linus].
* Comes with new and improved gitk [Paulus and Linus].
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-name-rev tries to find nice symbolic names for commits. It does so by
walking the commits from the refs. When the symbolic name is ambiguous, the
following heuristic is applied: Try to avoid too many ~'s, and if two ambiguous
names have the same count of ~'s, take the one whose last number is smaller.
With "--tags", the names are derived only from tags.
With "--stdin", the stdin is parsed, and after every sha1 for which a name
could be found, the name is appended. (Try "git log | git name-rev --stdin".)
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
git-pack-objects can reuse pack files stored in $GIT_DIR/pack-cache
directory, when a necessary pack is found. This is hopefully useful
when upload-pack (called from git-daemon) is expected to receive
requests for the same set of objects many times (e.g full cloning
request of any project, or updates from the set of heads previous day
to the latest for a slow moving project).
Currently git-pack-objects does *not* keep pack files it creates for
reusing. It might be useful to add --update-cache option to it,
which would allow it store pack files it created in the pack-cache
directory, and prune rarely used ones from it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds a very git specific restricted shell, that can be
added to /etc/shells and set to the pw_shell in the /etc/passwd
file, to give users ability to push into repositories over ssh
without giving them full interactive shell acount.
[jc: I updated Linus' patch to match what the current sq_quote()
does.]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
It supersedes git-rename by adding functionality to move multiple
files, directories or symlinks into another directory. It also
provides according documentation.
The implementation renames multiple files, using the arguments from
the command line to produce an array of sources and destinations. In
a first pass, all requested renames are checked for errors, and
overwriting of existing files is only allowed with '-f'. The actual
renaming is done in a second pass. This ensures that any error
condition is checked before anything is changed.
Signed-off-by: Josef Weidendorfer <Josef.Weidendorfer@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes the tree diff functionality independent of the "git-diff-tree"
program, by splitting the core functionality up into a library file.
This will be needed for when we teach git-rev-list to only follow a
specified set of pathnames, rather than the global revision history.
Most of it is a fairly straightforward code move, but it also involves
some calling convention cleanup, and moving some of the static variables
from diff-tree.c into the options structure.
The actual tree change callback routines also become paramterized by the
diff_options structure, allowing the library functionality to do something
else than just show the diff on stdout.
Right now the only user of this functionality remains git-diff-tree
itself.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Since git-cherry-pick is simply a copy of git-revert, it can be created
before installing (so that it can be used without installing, too).
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Yes I said 0.99.8e was the last maintenance release for 0.99.8, but it
turns out that there was another backport necessary after git-daemon
was unleashed on kernel.org servers.
Contains the following since 0.99.8e:
H. Peter Anvin:
revised^2: git-daemon extra paranoia, and path DWIM
Johannes Schindelin:
Fix cvsimport warning when called without --no-cvs-direct
Junio C Hamano:
Do not ask for objects known to be complete.
Linus Torvalds:
git-fetch-pack: avoid unnecessary zero packing
Optimize common case of git-rev-list
Signed-off-by: Junio C Hamano <junkio@cox.net>
