repack: do not fall back to incremental repacking with [-a|-A]
When repack is called with either the -a or -A option, the user has
requested to repack all objects including those referenced by the
alternates mechanism. Currently, if there are no local packs without
.keep files, then repack will call pack-objects with the
'--unpacked --incremental' options which causes it to exclude alternate
packed objects. So, remove this fallback.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds a new option to pack-objects which will cause it to ignore an
object which appears in a local pack which has a .keep file, even if it
was specified for packing.
This option will be used by the porcelain repack.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
checkout: Don't crash when switching away from an invalid branch.
When using alternates, it is possible for HEAD to end up pointing to
an invalid commit. git checkout should be able to recover from that
situation without crashing.
Signed-off-by: Alexandre Julliard <julliard@winehq.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* ar/maint-mksnpath:
Use git_pathdup instead of xstrdup(git_path(...))
git_pathdup: returns xstrdup-ed copy of the formatted path
Fix potentially dangerous use of git_path in ref.c
Add git_snpath: a .git path formatting routine with output buffer
Fix potentially dangerous uses of mkpath and git_path
Fix mkpath abuse in dwim_ref and dwim_log of sha1_name.c
Add mksnpath which allows you to specify the output buffer
Merge branch 'mv/maint-branch-m-symref' into maint
* mv/maint-branch-m-symref:
update-ref --no-deref -d: handle the case when the pointed ref is packed
git branch -m: forbid renaming of a symref
Fix git update-ref --no-deref -d.
rename_ref(): handle the case when the reflog of a ref does not exist
Fix git branch -m for symrefs.
git push normally updates local refs only after a successful push. If the
remote already has the updates -- pushed indirectly through another repository,
for example -- we forget to update local tracking refs.
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
We force writing a ref if it does not exist. Originally, we only had to look
for the ref file to check if it existed. Now we have to look for a packed ref
as well. Luckily, resolve_ref already does all the work for us.
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
format-patch documentation: mention the special case of showing a single commit
Even long timers seem to have missed that "format-patch -1 $commit" is a
much simpler and more obvious way to say "format-patch $commit^..$commit"
from the current documentation (and an example "format-patch -3 $commit"
to get three patches). Add an explicit instruction in a much earlier part
of the documentation to make it easier to find.
Merge branch 'js/maint-fetch-update-head' into maint
* js/maint-fetch-update-head:
pull: allow "git pull origin $something:$current_branch" into an unborn branch
Fix fetch/pull when run without --update-head-ok
* jc/maint-co-track:
Enhance hold_lock_file_for_{update,append}() API
demonstrate breakage of detached checkout with symbolic link HEAD
Fix "checkout --track -b newbranch" on detached HEAD
add instructions on how to send patches to the mailing list with Gmail
Gmail is one of the most popular email providers in the world. Now that Gmail
supports IMAP, sending properly formatted patches via `git imap-send` is
trivial. This section in SubmittingPatches explains how to do so.
Signed-off-by: Tom Preston-Werner <tom@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
send-pack: do not send out single-level refs such as refs/stash
Since no version of receive-pack accepts these "funny refs", we should
mirror the check when considering the list of refs to send. IOW, don't
even make them eligible for matching or mirroring.
The comments for normalize_absolute_path explicitly claim
that the source and destination buffers may be the same
(though they may not otherwise overlap). Thus the call to
memcpy may involve copying overlapping data, and memmove
should be used instead.
This fixes a valgrind error in t1504.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
struct object_entry *entry = *list++;
...
if (!*list_size)
...
break
Because we look at and increment *list _before_ the check of
list_size, in the very last iteration of the loop we will
look at uninitialized data, and increment the pointer beyond
one past the end of the allocated space. Since we don't
actually do anything with the data until after the check,
this is not a problem in practice.
But since it technically violates the C standard, and
because it provokes a spurious valgrind warning, let's just
move the initialization of entry to a safe place.
This fixes valgrind errors in t5300, t5301, t5302, t303, and
t9400.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Most cache_entry structs are allocated by using the
cache_entry_size macro, which rounds the size of the struct
up to the nearest multiple of 8 bytes (presumably to avoid
memory fragmentation).
There is one exception: the special "conflict entry" is
allocated with an empty name, and so is explicitly given
just one extra byte to hold the NUL.
However, later code doesn't realize that this particular
struct has been allocated differently, and happily tries
reading and copying it based on the ce_size macro, which
assumes the 8-byte alignment.
This can lead to reading uninitalized data, though since
that data is simply padding, there shouldn't be any problem
as a result. Still, it makes sense to hold the padding
assumption so as not to surprise later maintainers.
This fixes valgrind errors in t1005, t3030, t4002, and
t4114.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
update-ref --no-deref -d: handle the case when the pointed ref is packed
In this case we did nothing in the past, but we should delete the
reference in fact.
The problem was that when the symref is not packed but the referenced
ref is packed, then we assumed that the symref is packed as well, but
symrefs are never packed.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation: clarify information about 'ident' attribute
The documentation spoke of the attribute being set "to" a path; this can
mistakenly be interpreted as "the attribute needs to have its value set to
some kind of path". This clarifies things.
Signed-off-by: Jan Krüger <jk@jk.gs> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This allows us replace perl when getting the mtime of a file because
of time zone conversions, though at the moment only one platform which
does this has been identified: Cygwin when used with ActiveState Perl
(as usual).
asciidoc: add minor workaround to add an empty line after code blocks
Insert an empty <simpara> in manpages after code blocks to force and
empty line.
The problem can be seen on the manpage for the git tutorial, where an
example command and the following paragraph is printed with no empty
line between them:
First, note that you can get documentation for a command such as git
log --graph with:
$ man git-log
It is a good idea to introduce yourself to git [...]
Signed-off-by: Jonas Fonseca <fonseca@diku.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add git_snpath: a .git path formatting routine with output buffer
The function's purpose is to replace git_path where the buffer of
formatted path may not be reused by subsequent calls of the function
or will be copied anyway.
Add file delete/create info when we overflow rename_limit
When we refuse to do rename detection due to having too many files
created or deleted, let the user know the numbers. That way there is a
reasonable starting point for setting the diff.renamelimit option.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
/etc/passwd shell field must be something execable, you can't enter
"/usr/bin/git shell" there. git-shell must be present as a separate
executable, or it is useless.
Signed-off-by: Tommi Virtanen <tv@eagain.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add mksnpath which allows you to specify the output buffer
This is just vsnprintf's but additionally calls cleanup_path() on the
result. To be used as alternatives to mkpath() where the buffer for the
created path may not be reused by subsequent calls of the same formatting
function.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Current 'git add -p' will say "No changes." if there are no changes to
text files, which can be confusing if there _are_ changes to binary
files. Add some code to distinguish the two cases, and give a
different message in the latter one.
Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This moves the call to git_config to a place where it doesn't break the
logic for using git archive in a bare repository but retains the fix to
make git archive respect core.autocrlf.
Tests are by René Scharfe.
Signed-off-by: Charles Bailey <charles@hashpling.org> Tested-by: Deskin Miller <deskinm@umich.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This had two problems with symrefs. First, it copied the actual sha1
instead of the "pointer", second it failed to remove the old ref after a
successful rename.
Given that till now delete_ref() always dereferenced symrefs, a new
parameters has been introduced to delete_ref() to allow deleting refs
without a dereference.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix testcase failure when extended attributes are in use
06cbe855 (Make core.sharedRepository more generic, 2008-04-16) made
several testcases in t1301-shared-repo.sh which fail if on a system
which creates files with extended attributes (e.g. SELinux), since ls
appends a '+' sign to the permission set in such cases. In fact,
POSIX.1 allows ls to add a single printable character after the usual
3x3 permission bits to show that an optional alternate/additional access
method is associated with the path.
This fixes the testcase to strip any such sign prior to verifying the
permission set.
Signed-off-by: Junio C Hamano <gitster@pobox.com> Tested-by: Deskin Miller <deskinm@umich.edu>
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.
reset --hard/read-tree --reset -u: remove unmerged new paths
When aborting a failed merge that has brought in a new path using "git
reset --hard" or "git read-tree --reset -u", we used to first forget about
the new path (via read_cache_unmerged) and then matched the working tree
to what is recorded in the index, thus ending up leaving the new path in
the work tree.
read_packed_sha1 expectes its caller to free the buffer it returns, which
force_object_loose didn't do.
This leak is eventually triggered by "git gc", when it is manually invoked
or there are too many packs around, making gc totally unusable when there
are lots of unreachable objects.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix "checkout --track -b newbranch" on detached HEAD
The test to make sure that checkout fails when --track was asked for and
we cannot set up tracking information in t7201 was wrong, and it turns out
that the implementation for that feature itself was buggy. This fixes it.
refactor handling of "other" files in ls-files and status
When the "git status" display code was originally converted
to C, we copied the code from ls-files to discover whether a
pathname returned by read_directory was an "other", or
untracked, file.
Much later, 5698454e updated the code in ls-files to handle
some new cases caused by gitlinks. This left the code in
wt-status.c broken: it would display submodule directories
as untracked directories. Nobody noticed until now, however,
because unless status.showUntrackedFiles was set to "all",
submodule directories were not actually reported by
read_directory. So the bug was only triggered in the
presence of a submodule _and_ this config option.
This patch pulls the ls-files code into a new function,
cache_name_is_other, and uses it in both places. This should
leave the ls-files functionality the same and fix the bug
in status.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git pull" has known about misguided "pull" that lets the underlying fetch
update the current branch for a long time. It also has known about
"git pull origin master" into a branch yet to be born.
These two workarounds however were not aware of the existence of each
other and did not work well together. This fixes it.
t1301-shared-repo.sh: don't let a default ACL interfere with the test
This test creates files with several different umasks and expects their
permissions to be initialized according to the umask, so a default ACL on the
trash directory (which overrides the umask for files created in that directory)
causes the test to fail. To avoid that, remove the default ACL if possible with
setfacl(1).
Signed-off-by: Matt McCutchen <matt@mattmccutchen.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
xdiff-interface.c: strip newline (and cr) from line before pattern matching
POSIX doth sayeth:
"In the regular expression processing described in IEEE Std 1003.1-2001,
the <newline> is regarded as an ordinary character and both a period and
a non-matching list can match one. ... Those utilities (like grep) that
do not allow <newline>s to match are responsible for eliminating any
<newline> from strings before matching against the RE."
Thus far git has not been removing the trailing newline from strings matched
against regular expression patterns. This has the effect that (quoting
Jonathan del Strother) "... a line containing just 'FUNCNAME' (terminated by
a newline) will be matched by the pattern '^(FUNCNAME.$)' but not
'^(FUNCNAME$)'", and more simply not '^FUNCNAME$'.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
t4018-diff-funcname: demonstrate end of line funcname matching flaw
Since the newline is not removed from lines before pattern matching, a
pattern cannot match to the end of the line using the '$' operator without
using an additional operator which will indirectly match the '\n' character.
Introduce a test which should pass, but which does not due to this flaw.
Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t4018-diff-funcname: rework negated last expression test
This test used the non-zero exit status of 'git diff' to indicate that a
negated funcname pattern, when placed last, was correctly rejected.
The problem with this is that 'git diff' always returns non-zero if it
finds differences in the files it is comparing, and the files must
contain differences in order to trigger the funcname pattern codepath.
Instead of checking for non-zero exit status, make sure the expected
error message is printed.
Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote.c: correct the check for a leading '/' in a remote name
This test is supposed to disallow remote entries in the config file of the
form:
[remote "/foobar"]
...
The leading slash in '/foobar' is not acceptable.
Instead it was incorrectly testing that the subkey had no leading '/', which
had no effect since the subkey pointer was made to point at a '.' in the
preceding lines.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some confusing tutorials suggested that it would be a good idea to fetch
into the current branch with something like this:
git fetch origin master:master
(or even worse: the same command line with "pull" instead of "fetch").
While it might make sense to store what you want to pull, it typically is
plain wrong when the current branch is "master". This should only be
allowed when (an incorrect) "git pull origin master:master" tries to work
around by giving --update-head-ok to underlying "git fetch", and otherwise
we should refuse it, but somewhere along the lines we lost that behavior.
The check for the current branch is now _only_ performed in non-bare
repositories, which is an improvement from the original behaviour.
Some newer tests were depending on the broken behaviour of "git fetch"
this patch fixes, and have been adjusted.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Shawn O. Pearce <spearce@spearce.org> Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
We carefully verify that the input to git-apply is sane,
including cross-checking that the filenames we see in "+++"
headers match what was provided on the command line of "diff
--git". When --directory is used, however, we ended up
comparing the unadorned name to one with the prepended root,
causing us to complain about a mismatch.
We simply need to prepend the root directory, if any, when
pulling the name out of the git header.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
rebase -i: do not fail when there is no commit to cherry-pick
In case there is no commit to apply (for example because you rebase to
upstream and all your local patches have been applied there), do not
fail. The non-interactive rebase already behaves that way.
Do this by introducing a new command, "noop", which is substituted for
an empty commit list, so that deleting the commit list can still abort
as before.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Since v1.6.0.2~13^2~ the completion of a thin pack uses sha1write() for
its ability to compute a SHA1 on the written data. This also provides
data buffering which, along with commit 92392b4a45, will confuse pread()
whenever an appended object is 1) freed due to memory pressure because
of the depth-first delta processing, and 2) needed again because it has
many delta children, and 3) its data is still buffered by sha1write().
Let's fix the issue by simply forcing cached data out when such an
object is written so it can be pread()'d at leisure.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-stash.sh: fix flawed fix of invalid ref handling (commit da65e7c1)
The referenced commit tried to fix a flaw in stash's handling of a user
supplied invalid ref. i.e. 'git stash apply fake_ref@{0}' should fail
instead of applying stash@{0}. But, it did so in a naive way by avoiding the
use of the --default option of rev-parse, and instead manually supplied the
default revision if the user supplied an empty command line. This prevented
a common usage scenario of supplying flags on the stash command line (i.e.
non-empty command line) which would be parsed by lower level git commands,
without supplying a specific revision. This should fall back to the default
revision, but now it causes an error. e.g. 'git stash show -p'
The correct fix is to use the --verify option of rev-parse, which fails
properly if an invalid ref is supplied, and still allows falling back to a
default ref when one is not supplied.
Convert stash-drop to use --verify while we're at it, since specifying
multiple revisions for any of these commands is also an error and --verify
makes it so.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
But while we're at it, change the allocation to reference the
variable it is allocating memory for to try to prevent a similar
mistake, for example if the type is changed, in the future.
If we use pread() while at the end of the file, it will return 0, which is
not an error from the operating system point of view. In this case, errno
has not been set and must not be used.
Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>