"git diff <tree>{3,}": do not reverse order of arguments
According to the message of commit 0fe7c1de16f71312e6adac4b85bddf0d62a47168,
"git diff" with three or more trees expects the merged tree first followed by
the parents, in order. However, this command reversed the order of its
arguments, resulting in confusing diffs. A comment /* Again, the revs are all
reverse */ suggested there was a reason for this, but I can't figure out the
reason, so I removed the reversal of the arguments. Test case included.
Signed-off-by: Matt McCutchen <matt@mattmccutchen.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The user may put some effort into writing an annotated tag
message. When the tagging process later fails (which can
happen fairly easily, since it may be dependent on gpg being
correctly configured and used), there is no record left on
disk of the tag message.
Instead, let's keep the TAG_EDITMSG file around until we are
sure the tag has been created successfully. If we die
because of an error, the user can recover their text from
that file. Leaving the file in place causes no conflicts;
it will be silently overwritten by the next annotated tag
creation.
This matches the behavior of COMMIT_EDITMSG, which stays
around in case of error.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
memcpy() may only be used for disjoint memory areas, but when invoked
from cmd_fetch_pack(), we have my_args == &args. (The argument cannot
be removed entirely because transport.c invokes with its own
variable.)
Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In a corner case of large files whose lines do not match uniquely, the
loop to eliminate a line that matches multiple locations adjacent to a run
of lines that do not uniquely match wasted too much cycles. Fix this by
giving up early after scanning 100 lines in both direction.
* bc/maint-keep-pack:
repack: only unpack-unreachable if we are deleting redundant packs
t7700: test that 'repack -a' packs alternate packed objects
pack-objects: extend --local to mean ignore non-local loose objects too
sha1_file.c: split has_loose_object() into local and non-local counterparts
t7700: demonstrate mishandling of loose objects in an alternate ODB
builtin-gc.c: use new pack_keep bitfield to detect .keep file existence
repack: do not fall back to incremental repacking with [-a|-A]
repack: don't repack local objects in packs with .keep file
pack-objects: new option --honor-pack-keep
packed_git: convert pack_local flag into a bitfield and add pack_keep
t7700: demonstrate mishandling of objects in packs with a .keep file
generate-cmdlist.sh: avoid selecting synopsis at wrong place
In "common" man pages there is luckily no "NAME" anywhere except at
beginning of documents. If there is another "NAME", sed could
mis-select it and lead to common-cmds.h corruption. So better nail it
at beginning of line, which would reduce corruption chance.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
An earlier commit 916d081 (Nicer error messages in case saving an object
to db goes wrong, 2006-11-09) confused EACCES with EPERM, the latter of
which is an unlikely error from mkstemp().
This avoids the following misleading error message:
error: unable to create temporary sha1 filename ./objects/15: File exists
mkstemp can fail for many reasons, one of which, ENOENT, can occur if
the directory for the temp file doesn't exist. create_tmpfile tried to
handle this case by always trying to mkdir the directory, even if it
already existed. This caused errno to be clobbered, so one cannot tell
why mkstemp really failed, and it truncated the buffer to just the
directory name, resulting in the strange error message shown above.
Note that in both occasions that I've seen this failure, it has not been
due to a missing directory, or bad permissions, but some other, unknown
mkstemp failure mode that did not occur when I ran git again. This code
could perhaps be made more robust by retrying mkstemp, in case it was a
transient failure.
Signed-off-by: Joey Hess <joey@kitenet.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git checkout: don't warn about unborn branch if -f is already passed
I think it's unnecessary to warn that the checkout has been forced due to an
unborn current branch if -f has been explicitly passed. For one project, I am
using git-new-workdir to create workdirs from a bare repository whose HEAD is
set to an unborn branch, and this warning started to irritate me.
Signed-off-by: Matt McCutchen <matt@mattmccutchen.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
bash: offer refs instead of filenames for 'git revert'
The completion script for 'git revert' currently offers options and
filenames. However, 'git revert' doesn't take any filenames from the
command line, but a single commit. Therefore, it's more sane to offer
refs instead.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 5a625b07 (bash: remove fetch, push, pull dashed form leftovers,
2008-10-03) did that already, but there were still some git-cmd left
here and there.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
I figured the sections might as well be in some order, so I chose alphabetical
but with "core" at the beginning. This should help people add new variables
in the right places.
Signed-off-by: Matt McCutchen <matt@mattmccutchen.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The original intention of 72909be (Add diff-option --ext-diff, 2007-06-30)
was to optionally allow the use of external diff viewer in "git log"
family (while keeping them disabled by default). It exposed the "allow
external diff" bit to the UI, but forgot to adjust the "git diff" codepath
that was set up to always allow use of the external diff viewer.
Noticed by Nazri Ramliy; tests by René Scharfe squashed in.
fast-export: use an unsorted string list for extra_refs
The list extra_refs contains tags and the objects referenced by them,
so that they can be handled at the end. When a tag references a
commit, that commit is added to the list using the same name.
Also, the function handle_tags_and_duplicates() relies on the order
the items were added to extra_refs, so clearly we do not want to
use a sorted list here.
Noticed by Miklos Vajna.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Tested-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
compat/mingw.c: Teach mingw_rename() to replace read-only files
On POSIX, rename() can replace files that are not writable. On Windows,
however, read-only files cannot be replaced without additional efforts:
We have to make the destination writable first.
Since the situations where the destination is read-only are rare, we do not
make the destination writable on every invocation, but only if the first
try to rename a file failed with an "access denied" error.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach ls-files --with-tree=<tree> to work with options other than -c
Originally --with-tree=<tree> was designed for the sole purpose of
checking if a given pathspec makes sense as a parameter to git-commit
using it in conjunction with --error-unmatch. It had logic to avoid
showing the same entry (one came from the original index, another from the
overlayed tree) twice so that it works with -c (i.e. "show-cached"), but
otherwise it was not designed to work with the flags such as -m, -d, etc.
This teaches the same logic to cover the codepath for -m and -d.
Documentation: git-svn: fix example for centralized SVN clone
The example that tells users how to centralize the effort of the initial
git svn clone operation doesn't work properly. It uses rebase but that
only works if HEAD exists. This adds one extra command to create a
somewhat sensible HEAD that should work in all cases.
Signed-off-by: Jan Krüger <jk@jk.gs> Acked-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
repack: only unpack-unreachable if we are deleting redundant packs
The -A option calls pack-objects with the --unpack-unreachable option so
that the unreachable objects in local packs are left in the local object
store loose. But if the -d option to repack was _not_ used, then these
unpacked loose objects are redundant and unnecessary.
Update tests in t7701.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
date/time: do not get confused by fractional seconds
The date/time parsing code was confused if the input time HH:MM:SS is
followed by fractional seconds. Since we do not record anything finer
grained than seconds, we could just drop fractional part, but there is a
twist.
We have taught people that not just spaces but dot can be used as word
separators when spelling things like:
$ git log --since 2.days
$ git show @{12:34:56.7.days.ago}
and we shouldn't mistake "7" in the latter example as a fraction and
discard it.
The rules are:
- valid days of month/mday are always single or double digits.
- valid years are either two or four digits
No, we don't support the year 600 _anyway_, since our encoding is based
on the UNIX epoch, and the day we worry about the year 10,000 is far
away and we can raise the limit to five digits when we get closer.
- Other numbers (eg "600 days ago") can have any number of digits, but
they cannot start with a zero. Again, the only exception is for
two-digit numbers, since that is fairly common for dates ("Dec 01" is
not unheard of)
So that means that any milli- or micro-second would be thrown out just
because the number of digits shows that it cannot be an interesting date.
A milli- or micro-second can obviously be a perfectly fine number
according to the rules above, as long as it doesn't start with a '0'. So
if we have
12:34:56.123
then that '123' gets parsed as a number, and we remember it. But because
it's bigger than 31, we'll never use it as such _unless_ there is
something after it to trigger that use.
So you can say "12:34:56.123.days.ago", and because of the "days", that
123 will actually be meaninful now.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t7700: test that 'repack -a' packs alternate packed objects
Previously, when 'repack -a' was called and there were no packs in the local
repository without a .keep file, the repack would fall back to calling
pack-objects with '--unpacked --incremental'. This resulted in the created
pack file, if any, to be missing the packed objects in the alternate object
store. Test that this specific case has been fixed.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix pack.packSizeLimit and --max-pack-size handling
If the limit was sufficiently low, having a single object written
could bust the limit (by design), but caused the remaining allowed
size to go negative for subsequent objects, which for an unsigned
variable is a rather huge limit.
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Earlier commit 5521883 (checkout: do not lose staged removal, 2008-09-07)
tightened the rule to prevent switching branches from losing local
changes, so that staged removal of paths can be protected, while
attempting to keep a loophole to still allow a special case of switching
out of an un-checked-out state.
However, the loophole was made a bit too tight, and did not allow
switching from one branch (in an un-checked-out state) to check out
another branch.
The change to builtin-checkout.c in this commit loosens it to allow this,
by not insisting the original commit and the new commit to be the same.
It also introduces a new function, is_index_unborn (and an associated
macro, is_cache_unborn), to check if the repository is truly in an
un-checked-out state more reliably, by making sure that $GIT_INDEX_FILE
did not exist when populating the in-core index structure. A few places
the earlier commit 5521883 added the check for the initial checkout
condition are updated to use this function.
When the "-v" option is given, we put diff of what is to be committed into
the commit template, and then strip it back out again after the user has
edited it.
We used to look for the diff by searching for the "diff --git a/"
header. With diff.mnemonicprefix set in the configuration, however, this
pattern does not match. The pattern is loosened to cover this case.
Also, if the user puts their own diff in the message (e.g., as a sample
output), then we will accidentally trigger the pattern, removing part of
their output.
We can avoid doing this stripping altogether if the user didn't use "-v"
in the first place, so we know that any match we find will be a false
positive.
[jc: this fix was split out of a series originally meant for master.]
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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>
git push: Interpret $GIT_DIR/branches in a Cogito compatible way
Current git versions ignore everything after # (called <head> in the
following) when pushing. Older versions (before cf818348f1ab57),
interpret #<head> as part of the URL, which make git bail out.
As branches origin from Cogito, it is the best to correct this by using
the behaviour of cg-push, that is to push HEAD to remote refs/heads/<head>.
Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> 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>
tag: Check that options are only allowed in the appropriate mode
If "git tag -d -l -v ..." is called, only "-l" is honored, which is
arbitrary and wrong. Also, unrecognized options are accepted in the
wrong modes, causing for example "git tag -n 100" to create a tag
named "100" while the user may have wanted to type "git tag -n100".
This patch checks that "git tag" knows in what mode it operates before
performing any operation and accepts only the related options.
Signed-off-by: Samuel Tardieu <sam@rfc1149.net> 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.