git-archive is a command to make TAR and ZIP archives of a git tree.
It helps prevent a proliferation of git-{format}-tree commands.

Instead of directly calling git-{tar,zip}-tree command, it defines
a very simple API, that archiver should implement and register in
"git-archive.c". This API is made up by 2 functions whose prototype
is defined in "archive.h" file.

 - The first one is used to parse 'extra' parameters which have
   signification only for the specific archiver. That would allow
   different archive backends to have different kind of options.

 - The second one is used to ask to an archive backend to build
   the archive given some already resolved parameters.

The main reason for making this API is to avoid using
git-{tar,zip}-tree commands, hence making them useless. Maybe it's
time for them to die ?

It also implements remote operations by defining a very simple
protocol: it first sends the name of the specific uploader followed
the repository name (git-upload-tar git://example.org/repo.git).
Then it sends options. It's done by sending a sequence of one
argument per packet, with prefix "argument ", followed by a flush.

The remote protocol is implemented in "git-archive.c" for client
side and is triggered by "--remote=<repo>" option. For example,
to fetch a TAR archive in a remote repo, you can issue:

$ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD

We choose to not make a new command "git-fetch-archive" for example,
avoind one more GIT command which should be nice for users (less
commands to remember, keeps existing --remote option).
Signed-off-by: NFranck Bui-Huu <vagabon.xyz@gmail.com>
Acked-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Add generated file config.cache (default cache file, when running
./configure with -C, --config-cache option) to the list of ignored
files.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Add support for ./configure options --without-iconv (if neither libc
nor libiconv properly support iconv), and for --with-iconv=PATH (to
set prefix to libiconv library and headers, used only when
NEED_LIBICONV is set).  While at it, make ./configure set or unset
NO_ICONV always (it is not autodetected in Makefile).
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* jc/daemon:
  Revert "daemon: add upload-tar service."
  multi-service daemon: documentation
  daemon: add upload-tar service.

This reverts parts of commit 74c0cc21 and part of commit 355f5412.

Franck and Rene are working on a unified upload-archive which
would supersede this when done, so better not to get in their
way.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* pm/diff:
  diff-index --cc shows a 3-way diff between HEAD, index and working tree.

Avoid failing when cwd is !writable by writing the
packfiles in $GIT_DIR, which is more in line with other commands.

Without this, git-repack was failing when run from crontab
by non-root user accounts. For large repositories, this
also makes the mv operation a lot cheaper, and avoids leaving
temp packfiles around the fs upon failure.
Signed-off-by: NMartin Langhoff <martin@catalyst.net.nz>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When --stdin option is given, in addition to the <rev>s listed
on the command line, the command can read one rev parameter per
line from the standard input.  The list of revs ends at the
first empty line or EOF.

Note that you still have to give all the flags from the command
line; only rev arguments (including A..B, A...B, and A^@ notations)
can be give from the standard input.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

setup_revisions() wants to get all the parameters at once and
then postprocesses the resulting revs structure after it is done
with them.  This code structure is a bit cumbersome to deal with
efficiently when we want to inject revision parameters from the
side (e.g. read from standard input).

Fortunately, the nature of this postprocessing is not affected by
revision parameters; they are affected only by flags.  So it is
Ok to do add_object() after the it returns.

This splits out the code that deals with the revision parameter
out of the main loop of setup_revisions(), so that we can later
call it from elsewhere after it returns.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Some memory was allocated for a new path but not freed
after the path was used.
Signed-off-by: NChristian Couder <chriscool@tuxfamily.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When build a pack for a push we query the remote copy for existant
heads.  These are used to prune unnecessary objects from the pack.
As we receive the remote references in get_remote_heads() we validate
the reference names via check_ref() which includes a length check;
rejecting those >45 characters in size.

This is a miss converted change, it was originally designed to reject
messages which were less than 45 characters in length (a 40 character
sha1 and refs/) to prevent comparing unitialised memory.  check_ref()
now gets the raw length so check for at least 5 characters.
Signed-off-by: NAndy Whitcroft <apw@shadowen.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This implements a 3-way diff between the HEAD commit, the state in the
index, and the working directory.  This is like the n-way diff for a
merge, and uses much of the same code.  It is invoked with the -c flag
to git-diff-index, which it already accepted and did nothing with.
Signed-off-by: NPaul Mackerras <paulus@samba.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* jc/pack:
  more lightweight revalidation while reusing deflated stream in packing
  pack-objects: fix thinko in revalidate code
  pack-objects: re-validate data we copy from elsewhere.

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Add custom test for checking if Python comes with subprocess.py, or
should we use our own subprocess.py by defining WITH_OWN_SUBPROCESS_PY.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Divide page path into directories, so that each part of path links to
the "tree" view of the $hash_base (or HEAD, if $hash_base is not set)
version of the directory.

If the entity is blob, final part (basename) links to $hash_base or
HEAD revision of the "raw" blob ("blob_plain" view).  If the entity is
tree, link to the "tree" view.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

If you try to fsck a repository that isn't entirely empty, but that has no
inter-object references (ie all the objects are blobs, and don't refer to
anything else), git-fsck-objects currently fails.

This probably cannot happen in practice, but can be tested with something
like

	git init-db
	touch dummy
	git add dummy
	git fsck-objects

where the fsck will die by a divide-by-zero when it tries to look up the
references from the one object it found (hash_obj() will do a modulus by
refs_hash_size).

On some other archiectures (ppc, sparc) the divide-by-zero will go
unnoticed, and we'll instead SIGSEGV when we hit the "refs_hash[j]"
access.

So move the test that should protect against this from mark_reachable()
into lookup_object_refs(), which incidentally in the process also fixes
mark_reachable() itself (it used to not mark the one object that _was_
reachable, because it decided that it had no refs too early).
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When copying from an existing pack and when copying from a loose
object with new style header, the code makes sure that the piece
we are going to copy out inflates well and inflate() consumes
the data in full while doing so.

The check to see if the xdelta really apply is quite expensive
as you described, because you would need to have the image of
the base object which can be represented as a delta against
something else.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Change the name of diff to parent (current commit to one of parents)
link in "commit" view (git_commit subroutine) from "commitdiff" to
"diff".  Let's leave "commitdiff" for equivalent of git-show, or
git-diff-tree with one revision, i.e. diff for a given commit to its
parent (parents).
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

When revalidating an entry from an existing pack entry->size and
entry->type are not necessarily the size of the final object
when the entry is deltified, but for base objects they must
match.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NChristian Couder <chriscool@tuxfamily.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* master:
  Trace into a file or an open fd and refactor tracing code.
  Replace uses of strdup with xstrdup.
  consolidate two copies of new style object header parsing code.
  Documentation: Fix howto/revert-branch-rebase.html generation
  fmt-merge-msg: fix off-by-one bug
  git-rev-list(1): group options; reformat; document more options
  Constness tightening for move/link_temp_to_file()
  gitweb: Fix git_blame
  Include config.mak.autogen in the doc Makefile
  Use xmalloc instead of malloc
  git(7): move gitk(1) to the list of porcelain commands
  gitk: Fix some bugs in the new cherry-picking code
  gitk: Improve responsiveness while reading and layout out the graph
  gitk: Update preceding/following tag info when creating a tag
  gitk: Add a menu item for cherry-picking commits
  gitk: Fix a couple of buglets in the branch head menu items
  gitk: Add a context menu for heads
  gitk: Add a row context-menu item for creating a new branch
  gitk: Recompute ancestor/descendent heads/tags when rereading refs
  gitk: Minor cleanups

When reusing data from an existing pack and from a new style
loose objects, we used to just copy it staight into the
resulting pack.  Instead make sure they are not corrupt, but
do so only when we are not streaming to stdout, in which case
the receiving end will do the validation either by unpacking
the stream or by constructing the .idx file.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

If GIT_TRACE is set to an absolute path (starting with a
'/' character), we interpret this as a file path and we
trace into it.

Also if GIT_TRACE is set to an integer value greater than
1 and lower than 10, we interpret this as an open fd value
and we trace into it.

Note that this behavior is not compatible with the
previous one.

We also trace whole messages using one write(2) call to
make sure messages from processes do net get mixed up in
the middle.

This patch makes it possible to get trace information when
running "make test".
Signed-off-by: NChristian Couder <chriscool@tuxfamily.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Like xmalloc and xrealloc xstrdup dies with a useful message if
the native strdup() implementation returns NULL rather than a
valid pointer.

I just tried to use xstrdup in new code and found it to be missing.
However I expected it to be present as xmalloc and xrealloc are
already commonly used throughout the code.

[jc: removed the part that deals with last_XXX, which I am
 finding more and more dubious these days.]
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Also while we are at it, remove redundant typename[] array from
unpack_sha1_header.  The only reason it is different from the
type_names[] array in object.c module is that this code cares
about the subset of object types that are valid in a loose
object, so prepare a separate array of boolean that tells us
which types are valid, and share the name translation with the
others.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The rule for howto/*.html used "$?", which expands to the list of all
newer prerequisites, including asciidoc.conf added by another rule.
"$<" should be used instead.
Signed-off-by: NSergey Vlasov <vsu@altlinux.ru>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Thanks to the recent malloc()->xmalloc() change, and XMALLOC_POISON, this bug
was found.
Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

* git://git.kernel.org/pub/scm/gitk/gitk:
  gitk: Fix some bugs in the new cherry-picking code
  gitk: Improve responsiveness while reading and layout out the graph
  gitk: Update preceding/following tag info when creating a tag
  gitk: Add a menu item for cherry-picking commits
  gitk: Fix a couple of buglets in the branch head menu items
  gitk: Add a context menu for heads
  gitk: Add a row context-menu item for creating a new branch
  gitk: Recompute ancestor/descendent heads/tags when rereading refs
  gitk: Minor cleanups

Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJunio C Hamano <junkio@cox.net>

... to install documentation relative to the path set with configure's
--prefix option.
Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJonas Fonseca <fonseca@diku.dk>
Signed-off-by: NJunio C Hamano <junkio@cox.net>