xdl_merge used to have a check to ensure that there was at least
some change in one or other side being merged but this suppressed
output for the degenerate case when base, local and remote
contents were all identical.
Removing this check enables correct output in the degenerate case
and xdl_free_script handles freeing NULL scripts so there is no
need to have the check for these calls.
Signed-off-by: Charles Bailey <charles@hashpling.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the case that merge-file is passed three files with identical
contents it wipes the contents of the output file instead of
leaving it unchanged.
Althought merge-file is porcelain and this will never happen in
normal usage, it is still wrong.
Signed-off-by: Charles Bailey <charles@hashpling.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Noticed and reported by Serhat Şevki Dinçer.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Acked-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After bol is forwarded, it doesn't represent the beginning of the line
any more. This means that the beginning-of-line marker (^) mustn't match,
i.e. the regex flag REG_NOTBOL needs to be set.
This bug was introduced by fb62eb7fab
("grep -w: forward to next possible position after rejected match").
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit dbd0f5c7 (Files given on the command line are relative to $cwd,
2008-08-06) only fixed git-commit and git-tag. But, git-apply and
git-fmt-merge-msg didn't get the update and exhibit the same behavior.
Fix them and add tests for "apply --build-fake-ancestor" and
"fmt-merge-msg -F".
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit dbd0f5c7 (Files given on the command line are relative to $cwd,
2008-08-06) introduced parse_options_fix_filename() as a quick fix for
filename arguments used in the parse options API.
git-commit was still broken. This means
git commit -F log -t temp
in a subdirectory would make git think the log message should be taken
from temp instead of log.
This is because parse_options_fix_filename() calls prefix_filename()
which uses a single static char buffer to do its work. Making two calls
with two char pointers causes the pointers to alias. To prevent
aliasing, we duplicate the string returned by
parse_options_fix_filename().
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As noticed by Dmitry Gryazin: When a pattern is found but it doesn't
start and end at word boundaries, bol is forwarded to after the match and
the pattern is searched again. When a pattern is finally found between
word boundaries, the match offsets are off by the number of characters
that have been skipped.
This patch corrects the offsets to be relative to the value of bol as
passed to match_one_pattern() by its caller.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Its check is more robust than a config check for core.bare
Trivially-Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
You might end up with a situation where you have tons of pack files, e.g.
when using hg2git. In this situation, all kinds of operations may
end up with a "too many files open" error. Let's recover gracefully from
that.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Looks-right-to-me-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
You can trigger a segfault in git.git by doing:
git for-each-ref --format='%(taggeremail)' refs/tags/v0.99
The v0.99 tag is special in that it contains no "tagger"
header.
The bug is obvious in copy_email, which carefully checks to
make sure the result of a strchr is non-NULL, but only after
already having used it to perform other work. The fix is to
move the check up.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 76a44c5 (show-branch --reflog: show the reflog message at the
top, 2007-01-19) introduced parse_reflog_param(). The die() call was
incorrectly passed arg + 9, when it should have been passed arg.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add --oneline and --abbrev-commit to show and --sparse to show-branch.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Right now we pass two different pathnames ('path' and 'base') down to
read_directory_recursive(), and the only real reason for that is that we
want to allow an empty 'base' parameter, but when we do so, we need the
pathname to "opendir()" to be "." rather than the empty string.
And rather than handle that confusion in the caller, we can just fix
read_directory_recursive() to handle the case of an empty path itself,
by just passing opendir() a "." ourselves if the path is empty.
This would allow us to then drop one of the pathnames entirely from the
calling convention, but rather than do that, we'll start separating them
out as a "filesystem pathname" (the one we use for filesystem accesses)
and a "git internal base name" (which is the name that we use for git
internally).
That will eventually allow us to do things like handle different
encodings (eg the filesystem pathnames might be Latin1, while git itself
would use UTF-8 for filename information).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In these two places we are casting part of our unsigned char sha1 array into
an unsigned int, which violates GCCs strict-aliasing rules (and probably
other compilers).
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Introduce GIT_PS1_DESCRIBE option you can set to "contains", "branch", or
"describe" to tweak the way how a detached HEAD is described.
The default behaviour is to describe only exact match with some tag
(otherwise use the first 7 hexdigits) as before.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As I very often work on a detached HEAD, I found it pretty confusing
when __git_ps1() said 'some-name'. Did I create a branch with that name
by mistake, or do I happen to be on a commit with that exact tag?
This patch fixes the issue by enclosing non branch names in a pair of
parentheses when used to substitute %s token in __git_ps1() argument.
It also fixes a small bug where the branch part is left empty when
.git/HEAD is unreadable for whatever reason. The output now says
"(unknown)".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If your merge stops in a conflict while on a detached HEAD, recent
completion code fails to show anything. This was because various cases
added to support the operation-in-progress markers (e.g. REBASE, MERGING)
forgot that they need to set the variable "b" to something for the result
they computed to be displayed at all.
Probably not many people make trial merges on a detached HEAD (which is
tremendously useful feature of git, by the way), and that may be why this
was not noticed for a long time.
Acked-By: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This reverts commit 0beee4c6de but with a
bit of twist, as we have added "edit hunk manually" hack and we cannot
rely on the original line numbers of the hunks that were manually edited.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Splitting a hunk into two in add -p doesn't work for a diff that adds a
new line at the top of the file with other add in the same hunk.
Signed-off-by: Matthew Graham <mdg149@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, checkout would tell the user this message before moving HEAD,
without regard to whether the upcoming move will result in success.
If the move failed, this causes confusion.
Show the message after the move, unless the move failed.
Signed-off-by: Daniel Cordero <theappleman@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make the sample pre-commit hook script discard
all git-rev-parse output, not just stderr.
Otherwise, it would print an SHA1.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Exercise format-patch's --signoff, --in-reply-to and --start-number long
options.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Like Darwin, OpenBSD's stat struct uses st_ctimespec and st_mtimestruct
rather than st_ctim and st_mtim.
Signed-off-by: Tony Kemp <tony.kemp@newcastle.edu.au>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the installed programs are tar'ed up and installed on a system where
bin/ and libexec/git-core/ live on different file systems, we do not want
libexec/git-core/git-* to be hardlinks to bin/git.
Noticed by Cedric Staniewski.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The logic in 83ae209 (checkout branch: prime cache-tree fully,
2009-04-20) is bogus; checkout can switch branches with a dirty
index and in such a case the tree won't match HEAD.
Add t2014-switch to catch this breakage.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Such format relationships are very useful things to remember for
script writers.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Delayed negation in a statement is harder to spot and keep in mind.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When you are trying to come up with the final result (i.e. depth=0), you
want to record how the conflict arose by registering the state of the
common ancestor, your branch and the other branch in the index, hence you
want to do update_stages().
When you are merging with positive depth, that is because of a criss-cross
merge situation. In such a case, you would need to record the tentative
result, with conflict markers and all, as if the merge went cleanly, even
if there are conflicts, in order to write it out as a tree object later to
be used as a common ancestor tree.
update_file() calls update_file_flags() with update_cache=1 to signal that
the result needs to be written to the index at stage #0 (i.e. merged), and
the code should not clobber the index further by calling update_stages().
The codepath to deal with rename/delete conflict in a recursive merge
however left the index unmerged.
Signed-off-by: Dave Olszewski <cxreg@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This makes git checkout know to use the threaded index preloading if it
is enabled in the config file. You need to have
[core]
preloadindex = true
in your config file to see it, and for that feature to make sense your
filesystem needs to be able to do concurrent 'lstat()' lookups, but when
that is the case (especially NFS over a high-latency network), this can
be a noticeable performance win.
But with a low-latency network and at least older Linux NFS clients, this
will clearly potentially cause a lot of lock contention. It may still
speed up the uncached case, but the threading and locking overhead will
result in the cached case likely slowing down.
That was almost certainly fixed by Linux commit fc0f684c2 ("NFS: Remove
BKL from NFS lookup code"), but that one got merged into 2.6.27-rc1, so
older kernel versions than 2.6.27 will not scale very well.
But regardless, it's the right thing to do. If your filesystem doesn't
scale, don't enable index preloading.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we ask get_stat_data() to get the mode and size of an index entry,
we can avoid the lstat() call if we have marked the index entry as being
uptodate due to earlier lstat() calls.
This avoids a lot of unnecessary lstat() calls in eg 'git checkout',
where the last phase shows the differences to the working tree
(requiring a diff), but earlier phases have already verified the index.
On the kernel repo (with a fast machine and everything cached), this
changes timings of a nul 'git checkout' from
- Before (best of ten):
0.14user 0.05system 0:00.19elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+13237minor)pagefaults 0swaps
- After
0.11user 0.03system 0:00.15elapsed 98%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+13235minor)pagefaults 0swaps
so it can obviously be noticeable, although equally obviously it's not a
show-stopper on this particular machine. The difference is likely larger
on slower machines, or with operating systems that don't do as good a job
of name caching.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We try to warn the user if one of their pathspecs caused no
matches, as it may have been a typo. However, we disable the
warning if the pathspec points to an existing file, since
that means it is not a typo but simply an empty directory.
Unfortunately, the file_exists() test was broken for one
special case: the pathspec of the project root is just "".
This patch detects this special case and acts as if the file
exists (which it must, since it is the project root).
The user-visible effect is that this:
$ mkdir repo && cd repo && git init && git add .
used to complain like:
fatal: pathspec '' did not match any files
but now is a silent no-op.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Let a command-line --keep-subject (-k) override a config-specified
format.numbered (--numbered (-n)), rather than provoking the
"-n and -k are mutually exclusive" failure.
* t4021-format-patch-numbered.sh: Test for the above
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The alias argv comes from the split_cmdline function, which
splits the config text for the alias into an array of
strings. It returns the number of elements in the array, but
does not actually put a NULL at the end of the array.
Later, the trace function tries to print this argv and
assumes that it has the trailing NULL.
The split_cmdline function is probably at fault, since argv
lists almost always end with a NULL signal. This patch adds
one, in addition to the returned count; this doesn't hurt
the other callers at all, since they were presumably using
the count already (and will never look at the NULL).
While we're there and using ALLOC_GROW, let's clean up the
other manual grow.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Cloning into an existing empty directory is now allowed:
commit 55892d2398
("Allow cloning to an existing empty directory")
Signed-off-by: Alexander Potashev <aspotashev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Not as verbose as the recursive merge driver, but better still.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On some systems, giving a value of type time_t to printf "%lo" that
expects an unsigned long would give a type mismatch warning.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
