Use $GITPERLLIB instead of $RUNNING_GIT_TESTS and centralize @INC munging
This makes the Git perl scripts check $GITPERLLIB instead of
$RUNNING_GIT_TESTS, which makes more sense if you are setting up your shell
environment to use a non-installed Git instance.
It also weeds out the @INC munging from the individual scripts and makes
Makefile add it during the .perl files processing, so that we can change
just a single place when we modify this shared logic. It looks ugly in the
scripts, too. ;-)
And instead of doing arcane things with the @INC array, we just do 'use lib'
instead, which is essentialy the same thing anyway.
I first want to do three separate patches but it turned out that it's quite
a lot neater when bundled together, so I hope it's ok.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
Make zlib compression level configurable, and change default.
With the change in default, "git add ." on kernel dir is about
twice as fast as before, with only minimal (0.5%) change in
object size. The speed difference is even more noticeable
when committing large files, which is now up to 8 times faster.
The configurability is through setting core.compression = [-1..9]
which maps to the zlib constants; -1 is the default, 0 is no
compression, and 1..9 are various speed/size tradeoffs, 9
being slowest.
Signed-off-by: Joachim B Haga (cjhaga@fys.uio.no) Acked-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Earlier change broke "git describe A B" among other things.
Revert it for now, and clean the commits smudged by
get_merge_bases using clear_object_marks() function. For
complex commit ancestry graph, this is way cheaper as well.
Although our "git-%$X:" implicit target had dependency on
$(GITLIBS) which included xdiff/lib.a, git-http-{fetch,push} had
their own building rules and with an obsolete dependency on
$(LIB_FILES). Update the rules to depend on $(GITLIBS), to make
parallel build work correctly.
Perly Git: make sure we do test the freshly built one.
We could BEGIN { push @INC, '@@INSTLIBDIR@@'; } but that is not
a good idea for normal execution. The would prevent a
workaround for a user who is trying to override an old, faulty
Git.pm installed on the system path with a newer version
installed under $HOME/.
Back in the old days, we called Git's die() from the .xs code, but we had to
hijack Perl's die() for that. Now we don't call Git's die() so no need to do
the hijacking and it silences a compiler warning.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes us not include ppport.h which seems not to give us anything
real anyway; it is useful for checking for portability warts but since
Devel::PPPort is a portability wart itself, we shouldn't require it
for build. You can check for portability problems by calling make check
in perl/.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
PerlIO_*() is not portable before 5.7.3, according to ppport.h, and it's
more clear what is going on when we do it in the Perl part of the Git module
anyway.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
The syntax for 'require' was wrong, and it was always failing, which
resulted in installing our own version of Error.pm anyways.
Now we used to ship our own Error.pm in the same directory, so after
fixing the syntax, 'require' always succeeds, but it does not test if
the platform has Error.pm module installed anymore. So rename the
source we ship to private-Error.pm, and install that as Error.pm when
the platform does not have one already.
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
On some platforms, Git.xs refuses to link with the rest of git
unless the latter is compiled with -fPIC, and we have USE_PIC
control in the Makefile for the user to set it. At least we
know x86-64 is such, so set it in the Makefile.
The original suggestion by Marco Roeland conservatively did this
only for Linux x86-64, but let's keep the Makefile simple and if
it breaks somebody let them holler.
Perly Git: arrange include path settings properly.
Before "use Git" takes effect, we would need to set up the Perl
library path to point at the local installation location. So
that instruction needs to be in BEGIN{} block.
Git.pm: Support for perl/ being built by a different compiler
dst_ on #git reported that on Solaris 9, Perl was built by Sun CC
and perl/ is therefore being built with it as well, while the rest
of Git is built with gcc. The problem (the first one visible, anyway)
is that we passed perl/ even various gcc-specific options. This
separates those to a special variable.
This is not really meant for an application yet since it's not clear
if it will alone help anything.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
I'm about to introduce get_object() and it will be better for consistency
if the object type always goes first. And writing 'blob' there explicitly
is not much bother.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
The code is stolen from git-annotate and completely untested since
I don't have access to any Microsoft operating system now. Someone
ActiveState-savvy should look at it anyway and try to implement
the input pipe as well, if it is possible at all; also, the implementation
seems to be horribly whitespace-unsafe.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
- We passed our own *.a archives as LIBS to the submake that runs
in perl/; separate LIBS and EXTLIBS and pass the latter which
tells what the system libraries are used.
- The quoting of preprocesor symbol definitions passed down to
perl/ submake was loose and we lost double quotes around
include directives. Use *_SQ to quote them properly.
- The installation location of perl/ submake is not
architecture neutral anymore, so use SITEARCH instead of
SITELIB.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
When perl/Makefile is stale with respect to perl/Makefile.PL, it
prevents "make clean" from completing which is quite irritating.
Fix it by calling subdirectory make clean twice as needed.
Git.pm: Add support for subdirectories inside of working copies
This patch adds support for subdirectories inside of working copies;
you can specify them in the constructor either as the Directory
option (it will just get autodetected using rev-parse) or explicitly
using the WorkingSubdir option. This makes Git->repository() do the
exact same path setup and repository lookup as the Git porcelain
does.
This patch also introduces repo_path(), wc_path() and wc_subdir()
accessor methods and wc_chdir() mutator.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
Git.pm: Implement options for the command interface
This gives the user a way to easily pass options to the command routines.
Currently only the STDERR option is implemented and can be used to adjust
what shall be done with error output of the called command (most usefully,
it can be used to silence it).
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
Currently if an external command returns error exit code, a generic exception
is thrown and there is no chance for the caller to retrieve the command's
output.
This patch introduces a Git::Error::Command exception class which is thrown
in this case and contains both the error code and the captured command output.
You can use the new git_cmd_try statement to fatally catch the exception
while producing a user-friendly message.
It also adds command_close_pipe() for easier checking of exit status of
a command we have just a pipe handle of. It has partial forward dependency
on the next patch, but basically only in the area of documentation.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
So far, errors just killed the whole program and in case of an error
inside of libgit it would be totally uncatchable. This patch makes
Git.pm throw standard Perl exceptions instead. In the future we might
subclass Error to Git::Error or something but for now Error::Simple
is more than enough.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
I have been thinking about how to do the error reporting the best
way and after scraping various overcomplicated concepts, I have
decided that by far the most elegant way is to throw Error exceptions;
the closest sane alternative is to catch the dies in Git.pm by
enclosing the calls in eval{}s and that's really _quite_ ugly.
The only "small" trouble is that Error.pm turns out sadly not to be
part of the standard distribution, and installation from CPAN is
a bother, especially if you can't install it system-wide. But since
it is very small, I've decided to just bundle it.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
Git.pm: Call external commands using execv_git_cmd()
Instead of explicitly using the git wrapper to call external commands,
use the execv_git_cmd() function which will directly call whatever
needs to be called. GitBin option becomes useless so drop it.
This actually means the exec_path() thing I planned to use worthless
internally, but Jakub wants it in anyway and I don't mind, so...
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch introduces a very basic and barebone Git.pm module
with a sketch of how the generic interface would look like;
most functions are missing, but this should give some good base.
I will continue expanding it.
Most desirable now is more careful error reporting, generic_in() for feeding
input to Git commands and the repository() constructor doing some poking
with git-rev-parse to get the git directory and subdirectory prefix.
Those three are basically the prerequisities for converting git-mv.
I will send them as follow-ups to this patch.
Currently Git.pm just wraps up exec()s of Git commands, but even that
is not trivial to get right and various Git perl scripts do it in
various inconsistent ways. In addition to Git.pm, there is now also
Git.xs which provides barebone Git.xs for directly interfacing with
libgit.a, and as an example providing the hash_object() function using
libgit.
This adds the Git module, integrates it to the build system and as
an example converts the git-fmt-merge-msg.perl script to it (the result
is not very impressive since its advantage is not quite apparent in this
one, but I just picked up the simplest Git user around).
Compared to v3, only very minor things were fixed in this patch (some
whitespaces, a missing export, tiny bug in git-fmt-merge-msg.perl);
at first I wanted to post them as a separate patch but since this
is still only in pu, I decided that it will be cleaner to just resend
the patch.
My current working state is available all the time at
http://pasky.or.cz/~xpasky/git-perl/Git.pm
and an irregularily updated API documentation is at
http://pasky.or.cz/~xpasky/git-perl/Git.html
Many thanks to Jakub Narebski, Junio and others for their feedback.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <junkio@cox.net>
autoconf: Use autoconf to write installation directories to config.mak.autogen
This is beginning of patch series introducing installation configuration
using autoconf (and no other autotools) to git. The idea is to generate
config.mak.autogen using ./configure (generated from configure.ac by running
autoconf) from config.mak.in, so one can use autoconf as an _alternative_ to
ordinary Makefile, and creating one's own config.mak. Local settings in
config.mak override generated settings in config.mak.autogen
This patch includes minimal configure.ac and config.mak.in, so one can set
installation directories using autoconf generated ./configure script
e.g. ./configure --prefix=/usr
Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
Hint taken from Johannes. I've tested this with sed --posix on
my system with GNU sed and it works fine with and also without
it. Further portability testing/review would be good.
Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
Fold get_merge_bases_clean() into get_merge_bases()
Change get_merge_bases() to be able to clean up after itself if
needed by adding a cleanup parameter.
We don't need to save the flags and restore them afterwards anymore;
that was a leftover from before the flags were moved out of the
range used in revision.c. clear_commit_marks() sets them to zero,
which is enough.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
It had the wrong test for whether a commit was a merge. What it did was to
say that a non-merge has exactly one parent (which sounds almost right),
but the fact is, initial trees have no parent at all, but they're
obviously not merges.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Add git-instaweb, instantly browse the working repo with gitweb
I got tired of having to configure gitweb for every repository
I work on. I sometimes prefer gitweb to standard GUIs like gitk
or gitview; so this lets me automatically configure gitweb to
browse my working repository and also opens my browser to it.
Updates from the original patch:
Added Apache/mod_perl2 compatibility if Dennis Stosberg's gitweb
has been applied, too: <20060621130708.Gcbc6e5c@leonov.stosberg.net>
General cleanups in shell code usage.
Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch allows history display of whole trees/directories a la
"git-rev-list HEAD -- <dir or file>". I find this useful especially
when a project lives in its own subdirectory, as opposed to being all
of the GIT repository (i.e. when a sub-project is merged into a
super-project).
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
The rev-list command that is recent enough can filter commits
based on paths they touch, so use it instead of generating the
full list and limiting it by passing it with diff-tree --stdin.
[jc: The patch originally came from Luben Tuikov but the it was
corrupt, but it was short enough to be applied by hand. I
added the --full-history to make the output compatible with the
original while doing so.]
This patch allows history display of whole trees/directories a la
"git-rev-list HEAD -- <dir or file>". I find this useful especially
when a project lives in its own subdirectory, as opposed to being all
of the GIT repository (i.e. when a sub-project is merged into a
super-project).
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
The rev-list command that is recent enough can filter commits
based on paths they touch, so use it instead of generating the
full list and limiting it by passing it with diff-tree --stdin.
[jc: The patch originally came from Luben Tuikov but the it was
corrupt, but it was short enough to be applied by hand. I
added the --full-history to make the output compatible with the
original while doing so.]
The hash expansion is separated out into a function of its own, the hash
array (and size) names are made more obvious, and the code is generally
made to look a bit more like the object-ref hashing.
It also gets rid of "find_object()" returning an index (or negative
position if no object is found), since that is made redundant by the
simplified object rehashing. The basic operation is now "lookup_object()"
which just returns the object itself.
There's an almost unmeasurable speed increase, but more importantly, I
think the end result is more readable.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
With history simplification, we still show merges that are required
to make the history _complete_, i.e. say that you had:
a
|
b
/ \
c d
| |
and neither "a" nor "b" actually changed the file, but both "c" and "d"
did: in this case we have to leave "b" around just because otherwise there
would be no way to show the _relationship_, even if "b" itself doesn't
actually change the tree in any way what-so-ever.
It would make sense to make that further simplification if the
"--parents" flag wasn't present. In that case the user is
literally asking for a list of commits and is not interested in
the relationship between them.
This patch also fixes a real bug. Without this patch, the
"--parents --full-history" combination (which you'd get if you
do something like
gitk --full-history Makefile
or similar) will actually _drop_ merges where all children are identical.
That's wrong in the --full-history case, because it means that the graph
ends up missing lots of entries.
In the process, this also should make
git-rev-list --full-history Makefile
give just the _true_ list of all commits that changed Makefile (and
properly ignore merges that were identical in one parent), because now
we're not asking for "--parent", so we don't need the unnecessary merge
commits to keep the history together.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Add get_merge_bases_clean(), a wrapper for get_merge_bases() that cleans
up after doing its work and make get_merge_bases() NOT clean up.
Single-shot programs like git-merge-base can use the dirty and fast
version.
Also move the object flags used in get_merge_bases() out of the range
defined in revision.h. This fixes the "66ae0c77...ced9456a 89719209...262a6ef7" test of the ... operator which is introduced with
the next patch.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
If no delta is attempted on some objects then it is useless to load them
in memory, neither create any delta index for them. The best thing to
do is therefore to load and index them only when really needed.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
upload-pack.c: <sys/poll.h> includes <ctype.h> on OpenBSD 3.8
Merlyn reports that <sys/poll.h> on OpenBSD 3.8 includes <ctype.h>
and having our custom ctype (done in git-compat-util.h which is
included via cache.h) makes upload-pack.c uncompilable. Try to
work it around by including the system headers first.
Rename man1 and man7 variables to man1dir and man7dir
This patch renames man1 and man7 variables to man1dir and man7dir,
according to "Makefile Conventions: Variables for Installation
Directories" in make.info of GNU Make.
Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
Allow INSTALL, bindir, mandir to be set in main Makefile
Makefiles in subdirectories now use existing value of INSTALL, bindir,
mandir if it is set, allowing those to be set in main Makefile or in
included config.mak. Main Makefile exports variables which it sets.
Accidentally it renames bin to bindir in Documentation/Makefile
(should be bindir from start, but is unused, perhaps to be removed).
Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
There are a few special places where some programs accessed the object
hash array directly, which bothered me because I wanted to play with some
simple re-organizations.
So this patch makes the object hash array data structures all entirely
local to object.c, and the few users who wanted to look at it now get to
use a function to query how many object index entries there can be, and to
actually access the array.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
In the repacking window, if both objects we are looking at already came
from the same (old) pack-file, don't bother delta'ing them against each
other.
That means that we'll still always check for better deltas for (and
against!) _unpacked_ objects, but assuming incremental repacks, you'll
avoid the delta creation 99% of the time.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Commit 29e4d3635709778bcc808dbad0477efad82f8d7e fixed the
underlying update-index races but git-commit was not careful
enough to preserve the index file timestamp when copying the
index file. This caused t3402 test to occasionally fail.
* js/patch:
diff.c: fix get_patch_id()
t4014: fix test commit labels.
format-patch: use clear_commit_marks() instead of some ad-hockery
t4014: fix for whitespace from "wc -l"
t4014: add format-patch --ignore-if-in-upstream test
format-patch: introduce "--ignore-if-in-upstream"
add diff_flush_patch_id() to calculate the patch id
The commit tag and commit comments used in the test claimed that
the #1 commit was merged upstream where the test actually let the
upstream merge #2 commit. Fix them.
This fleshes out the code that generates a three-way merge of a set of
blobs.
It still actually does the three-way merge using an external executable
(ie just calling "merge"), but the interfaces have been cleaned up a lot
and are now fully based on the 'mmfile_t' interface, so if libxdiff were
to ever grow a compatible three-way-merge, it could probably be directly
plugged in.
It also uses the previous XDL_EMIT_COMMON functionality extension to
libxdiff to generate a made-up base file for the merge for the case where
no base file previously existed. This should be equivalent to what we
currently do in git-merge-one-file.sh:
This changes how "git-merge-tree" works in two ways:
- instead of printing things out as we walk the trees, we save the
results in memory.
- when we've walked the tree fully, we print out the results in a more
explicit way, describing the data.
This is basically preparatory work for extending the git-merge-tree
functionality in interesting directions.
In particular, git-merge-tree is also how you would create a diff between
two trees _without_ necessarily creating the merge commit itself. In other
words, if you were to just wonder what another branch adds, you should be
able to (eventually) just do
git merge-tree -p $base HEAD $otherbranch
to generate a diff of what the merge would look like. The current merge
tree already basically has all the smarts for this, and the explanation of
the results just means that hopefully somebody else than me could do the
boring work.
(You'd basically be able to do the above diff by just changing the
printout format for the explanation, and making the "changed in both"
first do a three-way merge before it diffs the result).
The other thing that the in-memory format allows is rename detection
(which the current code does not do). That's the basic reason why we don't
want to just explain the differences as we go along - because we want to
be able to look at the _other_ differences to see whether the reason an
entry got deleted in either branch was perhaps because it got added in
another place..
Rename detection should be a fairly trivial pass in between the tree
diffing and the explanation.
In the meantime, this doesn't actually do anything new, it just outputs
the information in a more verbose manner.
For an example merge, commit 5ab2c0a47574c92f92ea3709b23ca35d96319edd in
the git tree works well and shows renames, along with true removals and
additions and files that got changed in both branches. To see that as a
tree merge, do:
xdiff: generate "anti-diffs" aka what is common to two files
This fairly trivial patch adds a new XDL_EMIT_xxx flag to tell libxdiff
that we don't want to generate the _diff_ between two files, we want to
see the lines that are _common_ to two files.
So when you set XDL_EMIT_COMMON, xdl_diff() will do everything exactly
like it used to do, but the output records it generates just contain the
lines that aren't part of the diff.
This is for doing things like generating the common base case for a file
that was added in both branches.
Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
In diff_tree_combined(), show_log_first boolean is initialized with
rev->loginfo (pointer to a string); the intention is that if we have
some string to be emitted we would want to remember that fact. Picky
compilers are offended by this, so make the expression a bit type-safer.
git.c:main() relies on the value of errno being set by the last attempt to
execute the command. However, if something goes awry in handle_alias(),
that assumption is wrong. So restore errno before returning from
handle_alias().
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
commit does not always succeed, so we'll have to check for
it in the absence of set -e. This fixes a regression
introduced in 9e4bc7dd1bb9d92491c475cec55147fa0b3f954d
Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
Indexes are only needed when we are about preparing to commit. Prime them
inside commit() when we have all the info we need, and remove all the
redundant index setups.
While we are at it, make sure that index handling is correct when opening
new branches, and on initial import.
Signed-off-by: Martin Langhoff <martin@catalyst.net.nz> Signed-off-by: Junio C Hamano <junkio@cox.net>