Since ec7dbd145 (receive-pack: allow hooks to ignore its
standard input stream) the pre-receive and post-receive
hooks ignore SIGPIPE. Do the same for the remaining hooks
pre-push and post-rewrite, which read from standard input.
The same arguments for ignoring SIGPIPE apply.
Include test by Jeff King which checks that SIGPIPE does not
cause pre-push hook failure. With the use of git update-ref
--stdin it is fast enough to be enabled by default.
Signed-off-by: Clemens Buchacher <clemens.buchacher@intel.com> Signed-off-by: Jeff King <peff@peff.net>
Merge branch 'rs/wt-status-detached-branch-fix' into maint
"git status --branch --short" accessed beyond the constant string
"HEAD", which has been corrected.
* rs/wt-status-detached-branch-fix:
wt-status: use skip_prefix() to get rid of magic string length constants
wt-status: don't skip a magical number of characters blindly
wt-status: avoid building bogus branch name with detached HEAD
wt-status: exit early using goto in wt_shortstatus_print_tracking()
t7060: add test for status --branch on a detached HEAD
Merge branch 'jk/initialization-fix-to-add-submodule-odb' into maint
We peek objects from submodule's object store by linking it to the
list of alternate object databases, but the code to do so forgot to
correctly initialize the list.
* jk/initialization-fix-to-add-submodule-odb:
add_submodule_odb: initialize alt_odb list earlier
Various compilation fixes and squelching of warnings.
* js/misc-fixes:
Correct fscanf formatting string for I64u values
Silence GCC's "cast of pointer to integer of a different size" warning
Squelch warning about an integer overflow
Merge branch 'jk/delete-modechange-conflict' into maint
Merging a branch that removes a path and another that changes the
mode bits on the same path should have conflicted at the path, but
it didn't and silently favoured the removal.
* jk/delete-modechange-conflict:
merge: detect delete/modechange conflict
t6031: generalize for recursive and resolve strategies
t6031: move triple-rename test to t3030
Merge branch 'nd/clone-linked-checkout' into maint
It was not possible to use a repository-lookalike created by "git
worktree add" as a local source of "git clone".
* nd/clone-linked-checkout:
clone: better error when --reference is a linked checkout
clone: allow --local from a linked checkout
enter_repo: allow .git files in strict mode
enter_repo: avoid duplicating logic, use is_git_directory() instead
t0002: add test for enter_repo(), non-strict mode
path.c: delete an extra space
Merge branch 'sa/send-email-smtp-batch-data-limit' into maint
When "git send-email" wanted to talk over Net::SMTP::SSL,
Net::Cmd::datasend() did not like to be fed too many bytes at the
same time and failed to send messages. Send the payload one line
at a time to work around the problem.
* sa/send-email-smtp-batch-data-limit:
git-send-email.perl: Fixed sending of many/huge changes/patches
* xf/user-manual-markup:
Documentation: match undefline with the text in old release notes
Documentation: match underline with the text
Documentation: fix header markup
Merge branch 'dt/name-hash-dir-entry-fix' into maint
The name-hash subsystem that is used to cope with case insensitive
filesystems keeps track of directories and their on-filesystem
cases for all the paths in the index by holding a pointer to a
randomly chosen cache entry that is inside the directory (for its
ce->ce_name component). This pointer was not updated even when the
cache entry was removed from the index, leading to use after free.
This was fixed by recording the path for each directory instead of
borrowing cache entries and restructuring the API somewhat.
* dt/name-hash-dir-entry-fix:
name-hash: don't reuse cache_entry in dir_entry
Merge branch 'jc/am-3-fallback-regression-fix' into maint
"git am -3" had a small regression where it is aborted in its error
handling codepath when underlying merge-recursive failed in certain
ways, as it assumed that the internal call to merge-recursive will
never die, which is not the case (yet).
* jc/am-3-fallback-regression-fix:
am -3: do not let failed merge from completing the error codepath
The synopsis text and the usage string of subcommands that read
list of things from the standard input are often shown as if they
only take input from a file on a filesystem, which was misleading.
* jc/usage-stdin:
usage: do not insist that standard input must come from a file
A couple of commands still showed "[options]" in their usage string
to note where options should come on their command line, but we
spell that "[<options>]" in most places these days.
* rt/placeholder-in-usage:
am, credential-cache: add angle brackets to usage string
Merge branch 'mk/submodule-gitdir-path' into maint
The submodule code has been taught to work better with separate
work trees created via "git worktree add".
* mk/submodule-gitdir-path:
path: implement common_dir handling in git_pathdup_submodule()
submodule refactor: use strbuf_git_path_submodule() in add_submodule_odb()
Recent update to "rebase -i" that tries to sanity check the edited
insn sheet before it uses it has become too picky on Windows where
CRLF left by the editor is turned into a trailing CR on the line
read via the "read" built-in command.
* gr/rebase-i-drop-warn:
rebase-i: work around Windows CRLF line endings
t3404: "rebase -i" gets broken when insn sheet uses CR/LF line endings
"git clone --dissociate" runs a big "git repack" process at the
end, and it helps to close file descriptors that are open on the
packs and their idx files before doing so on filesystems that
cannot remove a file that is still open.
* js/clone-dissociate:
clone --dissociate: avoid locking pack files
sha1_file.c: add a function to release all packs
sha1_file: consolidate code to close a pack's file descriptor
t5700: demonstrate a Windows file locking issue with `git clone --dissociate`
Correct "git p4 --detect-labels" so that it does not fail to create
a tag that points at a commit that is also being imported.
* ld/p4-import-labels:
git-p4: fix P4 label import for unprocessed commits
git-p4: do not terminate creating tag for unknown commit
git-p4: failing test for ignoring invalid p4 labels
The internal stripspace() function has been moved to where it
logically belongs to, i.e. strbuf API, and the command line parser
of "git stripspace" has been updated to use the parse_options API.
* tk/stripspace:
stripspace: use parse-options for command-line parsing
strbuf: make stripspace() part of strbuf
Prepare for Git on-disk repository representation to undergo
backward incompatible changes by introducing a new repository
format version "1", with an extension mechanism.
* jk/repository-extension:
introduce "preciousObjects" repository extension
introduce "extensions" form of core.repositoryformatversion
Call child_process_clear() when a child ends to release the memory
allocated for its environment. This is necessary because unlike all
other users of start_command() we don't call finish_command(), which
would have taken care of that for us.
This leak was introduced by f063d38b (daemon: use cld->env_array
when re-spawning).
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Avoid duplication by moving the code to release allocated memory for
arguments and environment to its own function, child_process_clear().
Export it to provide a counterpart to child_process_init().
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
wt-status: don't skip a magical number of characters blindly
Use the variable branch_name, which already has "refs/heads/" removed,
instead of blindly advancing in the ->branch string by 11 bytes. This
is safer and less magical.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
wt-status: avoid building bogus branch name with detached HEAD
If we're on a detached HEAD then wt_shortstatus_print_tracking() takes
the string "HEAD (no branch)", translates it, skips the first eleven
characters and passes the result to branch_get(), which returns a bogus
result and accesses memory out of bounds in order to produce it.
Somehow stat_tracking_info(), which is passed that result, does the
right thing anyway, i.e. it finds that there is no base.
Avoid the bogus results and memory accesses by checking for HEAD first
and exiting early in that case. This fixes t7060 with --valgrind.
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t7060: add test for status --branch on a detached HEAD
This test fails when run under Valgrind because branch_get() gets passed
a bogus branch name pointer:
==62831== Invalid read of size 1
==62831== at 0x4F76AE: branch_get (remote.c:1650)
==62831== by 0x53499E: wt_shortstatus_print_tracking (wt-status.c:1654)
==62831== by 0x53499E: wt_shortstatus_print (wt-status.c:1706)
==62831== by 0x428D29: cmd_status (commit.c:1384)
==62831== by 0x405D6D: run_builtin (git.c:350)
==62831== by 0x405D6D: handle_builtin (git.c:536)
==62831== by 0x404F10: run_argv (git.c:582)
==62831== by 0x404F10: main (git.c:690)
==62831== Address 0x5e89b0b is 6 bytes after a block of size 5 alloc'd
==62831== at 0x4C28C4F: malloc (vg_replace_malloc.c:299)
==62831== by 0x59579E9: strdup (strdup.c:42)
==62831== by 0x52E108: xstrdup (wrapper.c:43)
==62831== by 0x5322A6: wt_status_prepare (wt-status.c:130)
==62831== by 0x4276E0: status_init_config (commit.c:184)
==62831== by 0x428BB8: cmd_status (commit.c:1350)
==62831== by 0x405D6D: run_builtin (git.c:350)
==62831== by 0x405D6D: handle_builtin (git.c:536)
==62831== by 0x404F10: run_argv (git.c:582)
==62831== by 0x404F10: main (git.c:690)
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git-merge-file is documented to return one of three exit
codes:
- zero means the merge was successful
- a negative number means an error occurred
- a positive number indicates the number of conflicts
Unfortunately, this all gets stuffed into an 8-bit return
code. Which means that if you have 256 conflicts, this wraps
to zero, and the merge appears to succeed (and commits a
blob full of conflict-marker cruft!).
This patch clamps the return value to a maximum of 127,
which we should be able to safely represent everywhere. This
also leaves 128-255 for other values. Shells (and some parts
of git) will typically represent signal death as 128 plus
the signal number. And negative values are typically coerced
to an 8-bit unsigned value (so "return -1" ends up as 255).
Technically negative returns have the same problem (e.g.,
"-256" wraps back to 0), but this is not a problem in
practice, as the only negative value we use is "-1".
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Editors on Windows can and do save text files with CRLF line
endings, which is the convention on the platform. We are seeing
reports that the "read" command in a port of bash to the environment
however does not strip the CRLF at the end, not adjusting for the
same convention on the platform.
This breaks the recently added sanity checks for the insn sheet fed
to "rebase -i"; instead of an empty line (hence nothing in $command),
the script was getting a lone CR in there.
Special case a lone CR and treat it the same way as an empty line to
work this around.
This patch (also) passes the test with Git for Windows, where the
issue was seen first.
Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
add_submodule_odb: initialize alt_odb list earlier
The add_submodule_odb function tries to add a submodule's
object store as an "alternate". It needs the existing list
to be initialized (from the objects/info/alternates file)
for two reasons:
1. We look for duplicates with the existing alternate
stores, but obviously this doesn't work if we haven't
loaded any yet.
2. We link our new entry into the list by prepending it to
alt_odb_list. But we do _not_ modify alt_odb_tail.
This variable starts as NULL, and is a signal to the
alt_odb code that the list has not yet been
initialized.
We then call read_info_alternates on the submodule (to
recursively load its alternates), which will try to
append to that tail, assuming it has been initialized.
This causes us to segfault if it is NULL.
This rarely comes up in practice, because we will have
initialized the alt_odb any time we do an object lookup. So
you can trigger this only when:
- you try to access a submodule (e.g., a diff with
diff.submodule=log)
- the access happens before any other object has been
accessed (e.g., because the diff is between the working
tree and the index)
- the submodule contains an alternates file (so we try to
add an entry to the NULL alt_odb_tail)
To fix this, we just need to call prepare_alt_odb at the
start of the function (and if we have already initialized,
it is a noop).
Note that we can remove the prepare_alt_odb call from the
end. It is guaranteed to be a noop, since we will have
called it earlier.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If one side deletes a file and the other changes its
content, we notice and report a conflict. However, if
instead of changing the content, we change only the mode,
the merge does not notice (and the mode change is silently
dropped).
The trivial index merge notices the problem and correctly
leaves the conflict in the index, but both merge-recursive
and merge-one-file will silently resolve this in favor of
the deletion. In many cases that is a sane resolution, but
we should be punting to the user whenever there is any
question. So let's detect and treat this as a conflict (in
both strategies).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The t6031 test was introduced to check filemode handling of
merge-recursive. Much later, an unrelated test was tacked on
to look at renames and d/f conflicts. This test does not
depend on anything that happened before (it actually blows
away any existing content in the test repo). Let's move it
to t3030, where there are more related tests.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This fix is probably purely cosmetic because PRIuMAX is likely identical
to SCNuMAX. Nevertheless, when using a function of the scanf() family,
the correct interpolation to use is the latter, not the former.
Signed-off-by: Waldek Maleska <w.maleska@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Silence GCC's "cast of pointer to integer of a different size" warning
When calculating hashes from pointers, it actually makes sense to cut
off the most significant bits. In that case, said warning does not make
a whole lot of sense.
So let's just work around it by casting the pointer first to intptr_t
and then casting up/down to the final integral type.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "Fast-forward merges" section of user-manual.txt incorrectly
says if the current branch is a descendant of the other, Git will
perform a fast-forward merge, but it should the other way around.
Signed-off-by: Xue Fuqiao <xfq.free@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since Git 2.0, "add -u" and "add -A" run from a subdirectory without
any pathspec mean "everything in the working tree" (before 2.0, they
were limited to the current directory). The limiting to the current
directory was implemented by inserting "." to the command line when
the end user did not give us any pathspec. At 2.0, we updated the
code to insert ":/" (instead of '.') to consider everything from the
top-level, by using a pathspec magic "top".
The call to parse_pathspec() using the command line arguments is,
however, made with PATHSPEC_PREFER_FULL option since 5a76aff1 (add:
convert to use parse_pathspec, 2013-07-14), which predates Git 2.0.
In retrospect, there was no need to turn "adding . to limit to the
directory" into "adding :/ to unlimit to everywhere" in Git 2.0;
instead we could just have done "if there is no pathspec on the
command line, just let it be". The parse_pathspec() then would give
us a pathspec that matches everything and all is well.
Incidentally such a simplification also fixes a corner case bug that
stems from the fact that ":/" does not necessarily mean any magic.
A user would say "git --literal-pathspecs add -u :/" from the
command line when she has a directory ':' and wants to add
everything in it (and she knows that her :/ will be taken as
'everything under the sun' magic pathspec unless she disables the
magic with --literal-pathspecs). The internal use of ':/' would
behave the same way as such an explicitly given ":/" when run with
"--literal-pathspecs", and will not add everything under the sun as
the code originally intended.
Documentation: AsciiDoc spells em-dash as double-dashes, not triple
Again, we do not usually process release notes with AsciiDoc, but it
is better to be consistent.
This incidentally reveals breakages left by an ancient 5e00439f
(Documentation: build html for all files in technical and howto,
2012-10-23). The index-format documentation was originally written
to be read as straight text without formatting and when the commit
forced everything in Documentation/ to go through AsciiDoc, it did
not do any adjustment--hence the double-dashes will be seen in the
resulting text that is rendered as preformatted fixed-width without
converted into em-dashes.
Even though AsciiDoc is more lenient when deciding if an underline
is for the contents on the previous line to find section headers, we
should match the length of them for other formatters to help them.
Documentation/everyday: match undefline with the text
Even though AsciiDoc is more lenient when deciding if an underline
is for the contents on the previous line to find section headers, we
should match the length of them for other formatters to help them.
Asciidoctor is stricter than AsciiDoc when deciding if underlining
is a section title or the start of preformatted text. Make the
length of the underlining match the text to ensure that it renders
correctly in all implementations.
Signed-off-by: Xue Fuqiao <xfq.free@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Stop reusing cache_entry in dir_entry; doing so causes a
use-after-free bug.
During merges, we free entries that we no longer need in the
destination index. But those entries might have also been stored in
the dir_entry cache, and when a later call to add_to_index found them,
they would be used after being freed.
To prevent this, change dir_entry to store a copy of the name instead
of a pointer to a cache_entry. This entails some refactoring of code
that expects the cache_entry.
Keith McGuigan <kmcguigan@twitter.com> diagnosed this bug and wrote
the initial patch, but this version does not use any of Keith's code.
Helped-by: Keith McGuigan <kmcguigan@twitter.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: David Turner <dturner@twopensource.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When libcurl has been statically compiled with openssl support they both
need to be linked in everytime libcurl is used.
During configuration this can be detected by looking for Curl_ssl_init
function symbol in libcurl, which will only be present if libcurl has been
compiled statically built with openssl.
configure.ac checks for Curl_ssl_init function in libcurl and if such function
exists; it sets NEEDS_SSL_WITH_CURL that is used by the Makefile to include
-lssl alongside with -lcurl.
Signed-off-by: Remi Pommarel <repk@triplefau.lt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are situations, e.g. during cross compilation, where curl-config
program is not present in the PATH.
Make the makefile use a configurable curl-config program passed through
CURL_CONFIG variable which can be set through config.mak.
Also make this variable tunable through use of autoconf/configure. Configure
will set CURL_CONFIG variable in config.mak.autogen to whatever value has been
passed to ac_cv_prog_CURL_CONFIG.
Signed-off-by: Remi Pommarel <repk@triplefau.lt> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
For static linking especially library order while linking is important. For
example, libcurl wants symbols from zlib when building http-push, http-fetch
and remote-curl. So for these programs libcurl has to be linked before zlib.
Signed-off-by: Remi Pommarel <repk@triplefau.lt> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git gc" used to barf when a symbolic ref has gone dangling
(e.g. the branch that used to be your upstream's default when you
cloned from it is now gone, and you did "fetch --prune").
* js/gc-with-stale-symref:
pack-objects: do not get distracted by broken symrefs
gc: demonstrate failure with stale remote HEAD
The normalize_ceiling_entry() function does not muck with the end
of the path it accepts, and the real world callers do rely on that,
but a test insisted that the function drops a trailing slash.
"git gc" is safe to run anytime only because it has the built-in
grace period to protect young objects. In order to run with no
grace period, the user must make sure that the repository is
quiescent.
* jc/doc-gc-prune-now:
Documentation/gc: warn against --prune=<now>
Dirty the test worktree's root directory, as the test expects.
When testing the untracked-cache, we previously assumed that checking
out master would be sufficient to mark the mtime of the worktree's
root directory as racily-dirty. But sometimes, the checkout would
happen at 12345.999 seconds and the status at 12346.001 seconds,
meaning that the worktree's root directory would not be racily-dirty.
And since it was not truly dirty, occasionally the test would fail.
By making the root truly dirty, the test will always succeed.
Tested by running a few hundred times.
Signed-off-by: David Turner <dturner@twopensource.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
worktree: usage: denote <branch> as optional with 'add'
Although 1eb07d8 (worktree: add: auto-vivify new branch when
<branch> is omitted, 2015-07-06) updated the documentation when
<branch> became optional, it neglected to update the in-code
usage message. Fix this oversight.
Reported-by: ch3cooli@gmail.com Signed-off-by: Sidhant Sharma <tigerkid001@gmail.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
usage: do not insist that standard input must come from a file
The synopsys text and the usage string of subcommands that read list
of things from the standard input are often shown like this:
git gostak [--distim] < <list-of-doshes>
This is problematic in a number of ways:
* The way to use these commands is more often to feed them the
output from another command, not feed them from a file.
* Manual pages outside Git, commands that operate on the data read
from the standard input, e.g "sort", "grep", "sed", etc., are not
described with such a "< redirection-from-file" in their synopsys
text. Our doing so introduces inconsistency.
* We do not insist on where the output should go, by saying
* As it is our convention to enclose placeholders inside <braket>,
the redirection operator followed by a placeholder filename
becomes very hard to read, both in the documentation and in the
help text.
Let's clean them all up, after making sure that the documentation
clearly describes the modes that take information from the standard
input and what kind of things are expected on the input.
[jc: stole example for fmt-merge-msg from Jonathan]
Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
On a case insensitive filesystems, setting GIT_WORK_TREE variable
using a random cases that does not agree with what the filesystem
thinks confused Git that it wasn't inside the working tree.
* js/icase-wt-detection:
setup: fix "inside work tree" detection on case-insensitive filesystems
"git rebase -i" had a minor regression recently, which stopped
considering a line that begins with an indented '#' in its insn
sheet not a comment, which is now fixed.
* gr/rebase-i-drop-warn:
rebase-i: loosen over-eager check_bad_cmd check
rebase-i: explicitly accept tab as separator in commands
Merge branch 'ti/glibc-stdio-mutex-from-signal-handler' into maint
Allocation related functions and stdio are unsafe things to call
inside a signal handler, and indeed killing the pager can cause
glibc to deadlock waiting on allocation mutex as our signal handler
tries to free() some data structures in wait_for_pager(). Reduce
these unsafe calls.
* ti/glibc-stdio-mutex-from-signal-handler:
pager: don't use unsafe functions in signal handlers
Merge branch 'jw/make-arflags-customizable' into maint
The Makefile always runs the library archiver with hardcoded "crs"
options, which was inconvenient for exotic platforms on which
people want to use programs with totally different set of command
line options.
* jw/make-arflags-customizable:
Makefile: allow $(ARFLAGS) specified from the command line
The ssh transport, just like any other transport over the network,
did not clear GIT_* environment variables, but it is possible to
use SendEnv and AcceptEnv to leak them to the remote invocation of
Git, which is not a good idea at all. Explicitly clear them just
like we do for the local transport.
* jk/connect-clear-env:
git_connect: clarify conn->use_shell flag
git_connect: clear GIT_* environment for ssh
Very small number of options take a parameter that is optional
(which is not a great UI element as they can only appear at the end
of the command line). Add notice to documentation of each and
every one of them.
* mm/keyid-docs:
Documentation: explain optional arguments better
Documentation/grep: fix documentation of -O
Documentation: use 'keyid' consistently, not 'key-id'
stripspace: use parse-options for command-line parsing
Use parse-options to parse command-line options instead of a
hand-crafted implementation. The users can now use a unique
prefix of the long option to say e.g. "git stripspace --strip".
Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function is also used in other builtins than stripspace, so it
makes sense to have it in a more generic place. Since it operates
on an strbuf and the function is declared in strbuf.h, move it to
strbuf.c and add the corresponding prefix to its name, just like
other API functions in the strbuf_* family.
Also switch all current users of stripspace() to the new function
name and keep a temporary wrapper inline function for any topic
branches still using stripspace().
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git gc" is safe to run anytime only because it has the built-in
grace period to protect objects that are created by other processes
that are waiting for ref updates to anchor them to the history. In
order to run with no grace period, the user must make sure that the
repository is quiescent.
Reviewed-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
filter-branch: remove multi-line headers in msg filter
df062010 (filter-branch: avoid passing commit message through sed)
introduced a regression when filtering commits with multi-line headers,
if the header contains a blank line. An example of this is a gpg-signed
commit:
As a consequence, "filter-branch --msg-filter cat" (which should leave the
commit message unchanged) spills the signature (after the internal blank
line) into the original commit message.
The reason is that although the signature is indented, making the line a
whitespace only line, the "read" call is splitting the line based on
the shell's IFS, which defaults to <space><tab><newline>. The leading
space is consumed and $header_line is empty, causing the "skip header
lines" loop to exit.
The rest of the commit object is then re-used as the rewritten commit
message, causing the new message to include the signature of the
original commit.
Set IFS to an empty string for the "read" call, thus disabling the word
splitting, which causes $header_line to be set to the non-empty value ' '.
This allows the loop to fully consume the header lines before
emitting the original, intact commit message.
[jc: this is literally based on MJG's suggestion]
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: James McCoy <vega.james@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
am -3: do not let failed merge from completing the error codepath
When "am" was rewritten in C, the codepath for falling back to
three-way merge was mistakenly made to make an internal call to
merge-recursive, disabling the error reporting code for certain
types of errors merge-recursive detects and reports by calling
die().
This is a quick-fix for correctness. The ideal endgame would be to
replace run_command() in run_fallback_merge_recursive() with a
direct call after making sure that internal call to merge-recursive
does not die().