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Instead of hand-crafted arrays to manage command line arguments
we create internally, use argv-array helpers.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Previously, the memory management of the object_array_entry::name
field was inconsistent and undocumented. object_array_entries are
ultimately created by a single function, add_object_array_with_mode(),
which has an argument "const char *name". This function used to
simply set the name field to reference the string pointed to by the
name parameter, and nobody on the object_array side ever freed the
memory. Thus, it assumed that the memory for the name field would be
managed by the caller, and that the lifetime of that string would be
at least as long as the lifetime of the object_array_entry. But
callers were inconsistent:
* Some passed pointers to constant strings or argv entries, which was
OK.
* Some passed pointers to newly-allocated memory, but didn't arrange
for the memory ever to be freed.
* Some passed the return value of sha1_to_hex(), which is a pointer to
a statically-allocated buffer that can be overwritten at any time.
* Some passed pointers to refnames that they received from a
for_each_ref()-type iteration, but the lifetimes of such refnames is
not guaranteed by the refs API.
Bring consistency to this mess by changing object_array to make its
own copy for the object_array_entry::name field and free this memory
when an object_array_entry is deleted from the array.
Many callers were passing the empty string as the name parameter, so
as a performance optimization, treat the empty string specially.
Instead of making a copy, store a pointer to a statically-allocated
empty string to object_array_entry::name. When deleting such an
entry, skip the free().
Change the callers that were already passing copies to
add_object_array_with_mode() to either skip the copy, or (if the
memory needed to be allocated anyway) freeing the memory itself.
A part of this commit effectively reverts
70d26c6e76 read_revisions_from_stdin: make copies for handle_revision_arg
because the copying introduced by that commit (which is still
necessary) is now done at a deeper level.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While explicitly stating that the commit message in a prerequisite
line is optional, we required all lines with 40 or more characters
to contain a space after the object name, bailing out if a line
consisted of an object name only. This was to allow bundling a
history to a commit without an message, but the code forgot that it
already called rtrim() to remove that whitespace.
As a workaround, only check for SP when the line has more than 40
characters.
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/fully-peeled-packed-ref:
pack-refs: add fully-peeled trait
pack-refs: write peeled entry for non-tags
use parse_object_or_die instead of die("bad object")
avoid segfaults on parse_object failure
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Many call-sites of parse_object assume that they will get a
non-NULL return value; this is not the case if we encounter
an error while parsing the object.
This patch adds a wrapper function around parse_object that
handles dying automatically, and uses it anywhere we
immediately try to access the return value as a non-NULL
pointer (i.e., anywhere that we would currently segfault).
This wrapper may also be useful in other places. The most
obvious one is code like:
o = parse_object(sha1);
if (!o)
die(...);
However, these should not be mechanically converted to
parse_object_or_die, as the die message is sometimes
customized. Later patches can address these sites on a
case-by-case basis.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These slightly improve the reading flow by making it obvious that a list
follows.
Also, make the wording of both headings consistent by changing "contains
%d ref(s)" to "contains this ref"/"contains these %d refs".
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A more informative message for "complete" bundles was added in commit
8c3710fd3011 (tweak "bundle verify" of a complete history, 2012-06-04).
However, the prerequisites ref list is currently read *after* we
check if it equals zero, which means we never actually use the
number of prerequisite refs to decide when to print the newly
introduced message. The code incorrectly uses the number of
references recorded in the bundle instead.
Signed-off-by: Lukas Fleischer <git@cryptocrack.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A bundle that records a complete history without prerequiste is a
useful way to sneakernet the sources of your configuration files
under your home directory, etc. E.g.
$ GIT_DIR=/srv/git/homesrc.git git bundle create x.bndl HEAD master
Running "git bundle verify" on such a "complete" bundle, however,
gives somewhat a funny output.
$ git bundle verify x.bndl
The bundle contains 2 refs
b2611f37ebc7ed6435a72d77fbc5f8b48a7d7146 HEAD
b2611f37ebc7ed6435a72d77fbc5f8b48a7d7146 refs/heads/master
The bundle requires these 0 refs
x.bndl is okay
Reword "requires these 0 refs" to say "The bundle records a complete
history" instead.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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More message strings marked for i18n.
By Nguyễn Thái Ngọc Duy (10) and Jonathan Nieder (1)
* nd/i18n:
help: replace underlining "help -a" headers using hyphens with a blank line
i18n: bundle: mark strings for translation
i18n: index-pack: mark strings for translation
i18n: apply: update say_patch_name to give translators complete sentence
i18n: apply: mark strings for translation
i18n: remote: mark strings for translation
i18n: make warn_dangling_symref() automatically append \n
i18n: help: mark strings for translation
i18n: mark relative dates for translation
strbuf: convenience format functions with \n automatically appended
Makefile: feed all header files to xgettext
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After running rev-list --boundary to retrieve the list of boundary
commits, "git bundle create" runs its own revision walk. If in this
stage git encounters an unfamiliar option, it writes a message with an
unbalanced quotation mark:
error: unrecognized argument: --foo'
Drop the stray quote to match the "unrecognized argument: %s" message
used elsewhere and save translators some work.
This is mostly a futureproofing measure: for now, the "rev-list
--boundary" command catches most strange arguments on its own and the
above message is not seen unless you try something esoteric like "git
bundle create test.bundle --header HEAD".
Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git bundle" did not record boundary commits correctly when there
are many of them.
By Thomas Rast
* tr/maint-bundle-boundary:
bundle: keep around names passed to add_pending_object()
t5510: ensure we stay in the toplevel test dir
t5510: refactor bundle->pack conversion
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By Thomas Rast
* tr/maint-bundle-boundary:
bundle: keep around names passed to add_pending_object()
t5510: ensure we stay in the toplevel test dir
t5510: refactor bundle->pack conversion
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* tr/maint-bundle-long-subject:
t5704: match tests to modern style
strbuf: improve strbuf_get*line documentation
bundle: use a strbuf to scan the log for boundary commits
bundle: put strbuf_readline_fd in strbuf.c with adjustments
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The 'name' field passed to add_pending_object() is used to later
deduplicate in object_array_remove_duplicates().
git-bundle had a bug in this area since 18449ab (git-bundle: avoid
packing objects which are in the prerequisites, 2007-03-08): it passed
the name of each boundary object in a static buffer. In other words,
all that object_array_remove_duplicates() saw was the name of the
*last* added boundary object.
The recent switch to a strbuf in bc2fed4 (bundle: use a strbuf to scan
the log for boundary commits, 2012-02-22) made this slightly worse: we
now free the buffer at the end, so it is not even guaranteed that it
still points into addressable memory by the time object_array_remove_
duplicates looks at it. On the plus side however, it was now
detectable by valgrind.
The fix is easy: pass a copy of the string to add_pending_object.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* tr/maint-bundle-long-subject:
t5704: match tests to modern style
strbuf: improve strbuf_get*line documentation
bundle: use a strbuf to scan the log for boundary commits
bundle: put strbuf_readline_fd in strbuf.c with adjustments
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The first part of the bundle header contains the boundary commits, and
could be approximated by
# v2 git bundle
$(git rev-list --pretty=oneline --boundary <ARGS> | grep ^-)
git-bundle actually spawns exactly this rev-list invocation, and does
the grepping internally.
There was a subtle bug in the latter step: it used fgets() with a
1024-byte buffer. If the user has sufficiently long subjects (e.g.,
by not adhering to the git oneline-subject convention in the first
place), the 'oneline' format can easily overflow the buffer. fgets()
then returns the rest of the line in the next call(s). If one of
these remaining parts started with '-', git-bundle would mistakenly
insert it into the bundle thinking it was a boundary commit.
Fix it by using strbuf_getwholeline() instead, which handles arbitrary
line lengths correctly.
Note that on the receiving side in parse_bundle_header() we were
already using strbuf_getwholeline_fd(), so that part is safe.
Reported-by: Jannis Pohlmann <jannis.pohlmann@codethink.co.uk>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The comment even said that it should eventually go there. While at
it, match the calling convention and name of the function to the
strbuf_get*line family. So it now is strbuf_getwholeline_fd.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
docs: describe behavior of relative submodule URLs
fix hang in git fetch if pointed at a 0 length bundle
Documentation: read-tree --prefix works with existing subtrees
Add MYMETA.json to perl/.gitignore
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git-repo if interupted at the exact wrong time will generate zero
length bundles- literal empty files. git-repo is wrong here, but
git fetch shouldn't effectively spin loop if pointed at a zero
length bundle.
Signed-off-by: Brian Harring <ferringb@chromium.org>
Helped-by: Johannes Sixt
Helped-by: Nguyen Thai Ngoc Duy
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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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>
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* jc/unseekable-bundle:
bundle: add parse_bundle_header() helper function
bundle: allowing to read from an unseekable fd
Conflicts:
transport.c
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* 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
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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* 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
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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>
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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>
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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>
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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>
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* js/maint-all-implies-HEAD:
bundle: allow the same ref to be given more than once
revision walker: include a detached HEAD in --all
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"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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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* maint:
Make test scripts executable.
bundle create: keep symbolic refs' names instead of resolving them
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Junio C Hamano
Michael Haggerty
Lukas Fleischer
Jeff King
Jonathan Nieder
Nguyễn Thái Ngọc Duy
Thomas Rast
Brian Harring
René Scharfe
Shawn O. Pearce
Csaba Henk
Nicolas Pitre
Jim Meyering
Johannes Schindelin
Daniel Lowe
Adam Brewster
Johannes Sixt
Martin Koegler
Brandon Casey
Jim Meyering