Commit Graph

30 Commits

Author SHA1 Message Date
Nguyễn Thái Ngọc Duy
c689332391 Convert many resolve_ref() calls to read_ref*() and ref_exists()
resolve_ref() may return a pointer to a static buffer, which is not
safe for long-term use because if another resolve_ref() call happens,
the buffer may be changed.  Many call sites though do not care about
this buffer. They simply check if the return value is NULL or not.

Convert all these call sites to new wrappers to reduce resolve_ref()
calls from 57 to 34. If we change resolve_ref() prototype later on
to avoid passing static buffer out, this helps reduce changes.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-13 12:21:06 -08:00
Junio C Hamano
b76c561a74 Merge branch 'jc/unseekable-bundle'
* jc/unseekable-bundle:
  bundle: add parse_bundle_header() helper function
  bundle: allowing to read from an unseekable fd

Conflicts:
	transport.c
2011-10-21 16:04:32 -07:00
Junio C Hamano
0941d60545 Merge branch 'rs/pending'
* rs/pending:
  commit: factor out clear_commit_marks_for_object_array
  checkout: use leak_pending flag
  bundle: use leak_pending flag
  bisect: use leak_pending flag
  revision: add leak_pending flag
  checkout: use add_pending_{object,sha1} in orphan check
  revision: factor out add_pending_sha1
  checkout: check for "Previous HEAD" notice in t2020

Conflicts:
	builtin/checkout.c
	revision.c
2011-10-13 19:03:22 -07:00
Junio C Hamano
2727b71f05 bundle: add parse_bundle_header() helper function
Move most of the code from read_bundle_header() to parse_bundle_header()
that takes a file descriptor that is already opened for reading, and make
the former responsible only for opening the file and noticing errors.

As a logical consequence of this, is_bundle() helper function can be
implemented as a non-complaining variant of read_bundle_header() that
does not return an open file descriptor, and can be used to tighten
the check used to decide the use of bundle transport in transport_get()
function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-13 15:50:21 -07:00
Junio C Hamano
e9ee84cf28 bundle: allowing to read from an unseekable fd
We wished that "git bundle" to eventually learn to read from a network
socket which is not seekable. The current code opens with fopen(), reads
the file halfway and run ftell(), and reopens the same file with open()
and seeks, to skip the header.

This patch by itself does not reach that goal yet, but I think it is a
right step in that direction.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-13 15:12:02 -07:00
René Scharfe
86a0a408b9 commit: factor out clear_commit_marks_for_object_array
Factor out the code to clear the commit marks for a whole struct
object_array from builtin/checkout.c into its own exported function
clear_commit_marks_for_object_array and use it in bisect and bundle
as well.  It handles tags and commits and ignores objects of any
other type.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-03 11:15:34 -07:00
René Scharfe
5be7859962 bundle: use leak_pending flag
Instead of creating a copy of the list of pending objects, copy the
struct object_array that points to it, turn on leak_pending, and thus
cause prepare_revision_walk to leave it to us.  And free it once
we're done.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-03 11:15:31 -07:00
Junio C Hamano
be042aff24 Teach progress eye-candy to fetch_refs_from_bundle()
With the usual "git" transport, a large-ish transfer with "git fetch" and
"git pull" give progress eye-candy to avoid boring users.  However, not
when they are reading from a bundle. I.e.

    $ git pull ../git-bundle.bndl master

This teaches bundle.c:unbundle() to give "-v" option to index-pack and
tell it to give progress bar when transport decides it is necessary.

The operation in the other direction, "git bundle create", could also
learn to honor --quiet but that is a separate issue.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-09-19 11:07:21 -07:00
Shawn O. Pearce
787d2a784b bundle: Use OFS_DELTA in bundle files
git-bundle first appeared in 2e0afafe ("Add git-bundle") in Feb 2007,
and first shipped in Git 1.5.1.

However, OFS_DELTA is an even earlier invention, coming about in
eb32d236 ("introduce delta objects with offset to base") in Sep 2006,
and first shipped in Git 1.4.4.5.

OFS_DELTA is smaller, about 3.2%-5% smaller, and is typically faster
to access than REF_DELTA because the exact location of the delta base
is available after parsing the object header.  Since all bundle aware
versions of Git are also OFS_DELTA aware, just make it the default.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-06 22:50:26 -08:00
Csaba Henk
0f5cdf653b bundle: detect if bundle file cannot be created
bundle command silently died with no sign of failure if it
could not create the bundle file. (Eg.: its path resovles to a directory,
or the parent dir is sticky while file already exists and is owned
by someone else.)

Signed-off-by: Csaba Henk <csaba@gluster.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-27 16:46:26 -07:00
Junio C Hamano
e61f25f3a6 Merge branch 'jc/log-stdin'
* jc/log-stdin:
  Add trivial tests for --stdin option to log family
  Make --stdin option to "log" family read also pathspecs
  setup_revisions(): do not call get_pathspec() too early
  Teach --stdin option to "log" family
  read_revision_from_stdin(): use strbuf

Conflicts:
	revision.c
2009-11-23 22:30:08 -08:00
Nicolas Pitre
4f36627518 pack-objects: split implications of --all-progress from progress activation
Currently the --all-progress flag is used to use force progress display
during the writing object phase even if output goes to stdout which is
primarily the case during a push operation.  This has the unfortunate
side effect of forcing progress display even if stderr is not a
terminal.

Let's introduce the --all-progress-implied argument which has the same
intent except for actually forcing the activation of any progress
display.  With this, progress display will be automatically inhibited
whenever stderr is not a terminal, or full progress display will be
included otherwise.  This should let people use 'git push' within a cron
job without filling their logs with useless percentage displays.

Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Tested-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-23 21:33:09 -08:00
Junio C Hamano
8b3dce5650 Teach --stdin option to "log" family
Move the logic to read revs from standard input that rev-list knows about
from it to revision machinery, so that all the users of setup_revisions()
can feed the list of revs from the standard input when "--stdin" is used
on the command line.

Allow some users of the revision machinery that want different semantics
from the "--stdin" option to disable it by setting an option in the
rev_info structure.

This also cleans up the kludge made to bundle.c via cut and paste.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-20 15:10:29 -08:00
Jim Meyering
41698375ad don't dereference NULL upon fdopen failure
There were several unchecked use of fdopen(); replace them with xfdopen()
that checks and dies.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-13 01:32:20 -07:00
Nguyễn Thái Ngọc Duy
a80aad7b85 Terminate argv with NULL before calling setup_revisions()
It is convention that argv should be terminated with NULL, even if
argc is used to specify the size of argv. setup_revisions() requires
this and may segfault otherwise.

This patch makes sure that all argv (that I can find) is NULL terminated.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-21 08:56:24 -07:00
Junio C Hamano
f18e6bef23 Merge branch 'js/maint-all-implies-HEAD'
* js/maint-all-implies-HEAD:
  bundle: allow the same ref to be given more than once
  revision walker: include a detached HEAD in --all
2009-01-25 17:13:02 -08:00
Junio C Hamano
b2a6d1c686 bundle: allow the same ref to be given more than once
"git bundle create x master master" used to create a bundle that lists
the same branch (master) twice.  Cloning from such a bundle resulted in
a needless warning "warning: Duplicated ref: refs/remotes/origin/master".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 23:00:31 -08:00
Johannes Schindelin
c9a42c4a12 bundle: allow rev-list options to exclude annotated tags
With options such as "--all --since=2.weeks.ago", annotated tags used to
be included, when they should have been excluded.  The reason is that we
heavily abuse the revision walker to determine what needs to be included
or excluded.  And the revision walker does not show tags at all (and
therefore never marks tags as uninteresting).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-05 10:47:07 -08:00
Daniel Lowe
9db56f71b9 Fix non-literal format in printf-style calls
These were found using gcc 4.3.2-1ubuntu11 with the warning:

    warning: format not a string literal and no format arguments

Incorporated suggestions from Brandon Casey <casey@nrlssc.navy.mil>.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-11 14:43:59 -08:00
Junio C Hamano
acd3b9eca8 Enhance hold_lock_file_for_{update,append}() API
This changes the "die_on_error" boolean parameter to a mere "flags", and
changes the existing callers of hold_lock_file_for_update/append()
functions to pass LOCK_DIE_ON_ERROR.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-19 12:35:37 -07:00
Adam Brewster
22568f0a33 Teach git-bundle to read revision arguments from stdin like git-rev-list.
This patch allows the caller to feed the revision parameters to git-bundle
from its standard input.  This way, a script do not have to worry about
limitation of the length of command line.

Documentation/git-bundle.txt says that git-bundle takes arguments acceptable
to git-rev-list.  Obviously some arguments that git-rev-list handles don't
make sense for git-bundle (e.g. --bisect) but --stdin is pretty reasonable.

Signed-off-by: Adam Brewster <adambrewster@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-07 01:31:24 -07:00
Johannes Sixt
c20181e3a3 start_command(), if .in/.out > 0, closes file descriptors, not the callers
Callers of start_command() can set the members .in and .out of struct
child_process to a value > 0 to specify that this descriptor is used as
the stdin or stdout of the child process.

Previously, if start_command() was successful, this descriptor was closed
upon return. Here we now make sure that the descriptor is also closed in
case of failures. All callers are updated not to close the file descriptor
themselves after start_command() was called.

Note that earlier run_gpg_verify() of git-verify-tag set .out = 1, which
worked because start_command() treated this as a special case, but now
this is incorrect because it closes the descriptor. The intent here is to
inherit stdout to the child, which is achieved by .out = 0.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-23 11:59:44 -08:00
Johannes Sixt
e72ae28895 start_command(), .in/.out/.err = -1: Callers must close the file descriptor
By setting .in, .out, or .err members of struct child_process to -1, the
callers of start_command() can request that a pipe is allocated that talks
to the child process and one end is returned by replacing -1 with the
file descriptor.

Previously, a flag was set (for .in and .out, but not .err) to signal
finish_command() to close the pipe end that start_command() had handed out,
so it was optional for callers to close the pipe, and many already do so.
Now we make it mandatory to close the pipe.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-23 11:59:44 -08:00
Martin Koegler
3d51e1b5b8 check return code of prepare_revision_walk
A failure in prepare_revision_walk can be caused by
a not parseable object.

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-17 23:51:12 -08:00
Brandon Casey
4ed7cd3ab0 Improve use of lockfile API
Remove remaining double close(2)'s.  i.e. close() before
commit_locked_index() or commit_lock_file().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-16 15:35:35 -08:00
Jim Meyering
95693d45ee bundle, fast-import: detect write failure
I noticed some unchecked writes.  This fixes them.

* bundle.c (create_bundle): Die upon write failure.
* fast-import.c (keep_pack): Die upon write or close failure.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-10 01:08:11 -08:00
Jim Meyering
872c930dcb Don't access line[-1] for a zero-length "line" from fgets.
A NUL byte at beginning of file, or just after a newline
would provoke an invalid buf[-1] access in a few places.

* builtin-grep.c (cmd_grep): Don't access buf[-1].
* builtin-pack-objects.c (get_object_list): Likewise.
* builtin-rev-list.c (read_revisions_from_stdin): Likewise.
* bundle.c (read_bundle_header): Likewise.
* server-info.c (read_pack_info_file): Likewise.
* transport.c (insert_packed_refs): Likewise.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-04 12:28:58 -08:00
Junio C Hamano
fa30383642 Merge branch 'maint'
* maint:
  Make test scripts executable.
  bundle create: keep symbolic refs' names instead of resolving them
2007-11-22 16:51:18 -08:00
Junio C Hamano
f3fa183802 Style: place opening brace of a function definition at column 1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-08 15:35:32 -08:00
Johannes Schindelin
30415d50cc Move bundle specific stuff into bundle.[ch]
The transport specific stuff was moved into libgit.a, and the
bundle specific stuff will not be left behind.

This is a big code move, with one exception: the function
unbundle() no longer outputs the list of refs.  You have to call
list_bundle_refs() yourself for that.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-19 03:22:30 -07:00