Fixes a minor bug in "git rebase -i" (there could be others, as the
root cause is pretty generic) where the code feeds a random, data
dependeant string to 'echo' and expects it to come out literally.
* mm/no-shell-escape-in-die-message:
die_with_status: use "printf '%s\n'", not "echo"
* da/darwin:
OS X: Fix redeclaration of die warning
Makefile: Fix APPLE_COMMON_CRYPTO with BLK_SHA1
imap-send: use Apple's Security framework for base64 encoding
* jk/fast-import-empty-ls:
fast-import: allow moving the root tree
fast-import: allow ls or filecopy of the root tree
fast-import: set valid mode on root tree in "ls"
t9300: document fast-import empty path issues
Subversion 1.8.0 that was recently released breaks older subversion
clients coming over http/https in various ways.
* km/svn-1.8-serf-only:
Git.pm: revert _temp_cache use of temp_is_locked
git-svn: allow git-svn fetching to work using serf
Git.pm: add new temp_is_locked function
"git check-ignore -z" applied the NUL termination to both its input
(with --stdin) and its output, but "git check-attr -z" ignored the
option on the output side.
This is potentially a backward incompatible fix. Let's see if
anybody screams before deciding if we want to do anything to help
existing users (there may be none).
* jc/check-x-z:
check-attr -z: a single -z should apply to both input and output
check-ignore -z: a single -z should apply to both input and output
check-attr: the name of the character is NUL, not NULL
check-ignore: the name of the character is NUL, not NULL
t5308: check that index-pack --strict detects duplicate objects
Commit 68be2fea (receive-pack, fetch-pack: reject bogus pack that
records objects twice, 2011-11-16) taught index-pack to notice and
reject duplicate objects if --strict is given (which it is for
incoming packs, if transfer.fsckObjects is set). However, it never
tested the code, because we did not have an easy way of generating
such a bogus pack.
Now that we have test infrastructure to handle this, let's confirm
that it works.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
add--interactive: fix external command invocation on Windows
Back in 21e9757e (Hack git-add--interactive to make it work with
ActiveState Perl, 2007-08-01), the invocation of external commands was
changed to use qx{} on Windows. The rationale was that the command
interpreter on Windows is not a POSIX shell, but rather Windows's CMD.
That patch was wrong to include 'msys' in the check whether to use qx{}
or not: 'msys' identifies MSYS perl as shipped with Git for Windows,
which does not need the special treatment; qx{} should be used only with
ActiveState perl, which is identified by 'MSWin32'.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git p4: implement view spec wildcards with "p4 where"
"git p4" does not support many of the view wildcards, such as * and
%%n. It only knows the common ... mapping, and exclusions.
Redo the entire wildcard code around the idea of directly querying
the p4 server for the mapping. For each commit, invoke "p4 where"
with committed file paths as args and use the client mapping to
decide where the file goes in git.
This simplifies a lot of code, and adds support for all wildcards
supported by p4. Downside is that there is probably a 20%-ish
slowdown with this approach.
[pw: redo code and tests]
Signed-off-by: Kazuki Saitoh <ksaitoh560@gmail.com> Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rev-parse test: use standard test functions for setup
Save the reader from learning specialized t6* setup functions
where familiar commands like test_commit, "git checkout --orphan",
and "git merge" will do.
While at it, wrap the setup commands in a test assertion so errors can
be caught and stray output suppressed when running without --verbose
as in other tests.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rev-parse test: use test_cmp instead of "test" builtin
Use test_cmp instead of passing two command substitutions to the
"test" builtin. This way:
- when tests fail, they can print a helpful diff if run with
"--verbose"
- the argument order "test_cmp expect actual" feels natural,
unlike test <known> = <unknown> that seems backwards
- the exit status from invoking git is checked, so if rev-parse
starts segfaulting then the test will notice and fail
Use a custom function for this instead of test_cmp_rev to emphasize
that we are testing the output from "git rev-parse" with certain
arguments, not checking that the revisions are equal in abstract.
Reported-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rev-parse test: use test_must_fail, not "if <command>; then false; fi"
This way, if rev-parse segfaults then the test will fail instead
of treating it the same way as a controlled failure.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of cramming everything in one line, put the test body in an
indented block after the opening test_expect_success line and quote
and put the closing quote on a line by itself.
Use single-quote instead of double-quote to quote the test body
for more useful --verbose output.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Split into a separate helper function get_commit() so that the part that
finds the relevant commit, and the part that does something with it
(handle tag object, etc.) are in different places.
No functional changes.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-remote-mediawiki: no need to update private ref in non-dumb push
We used to update the private ref ourselves, but this update is now
done by default since 664059fb (transport-helper: update remote
helper namespace, 2013-04-17).
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 664059fb (transport-helper: update remote helper namespace,
2013-04-17), a 'push' operation on a remote helper updates the
private ref by default. This is often a good thing, but it can also
be desirable to disable this update to force the next 'pull' to
re-import the pushed revisions.
Allow remote-helpers to disable the automatic update by introducing a new
capability.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make setup_git_env() resolve .git file when $GIT_DIR is not specified
This makes reinitializing on a .git file repository work.
This is probably the only case that setup_git_env() (via
set_git_dir()) is called on a .git file. Other cases in
setup_git_dir_gently() and enter_repo() both cover .git file case
explicitly because they need to verify the target repo is valid.
Reported-by: Ximin Luo <infinity0@gmx.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
pager: turn on "cat" optimization for DEFAULT_PAGER
If the user specifies a pager of "cat" (or the empty
string), whether it is in the environment or from config, we
automagically optimize it out to mean "no pager" and avoid
forking at all. We treat an empty pager variable similary.
However, we did not apply this optimization when
DEFAULT_PAGER was set to "cat" (or the empty string). There
is no reason to treat DEFAULT_PAGER any differently. The
optimization should not be user-visible (unless the user has
a bizarre "cat" in their PATH). And even if it is, we are
better off behaving consistently between the compile-time
default and the environment and config settings.
The stray "else" we are removing from this code was
introduced by 402461a (pager: do not fork a pager if PAGER
is set to empty., 2006-04-16). At that time, the line
directly above used:
if (!pager)
pager = "less";
as a fallback, meaning that it could not possibly trigger
the optimization. Later, a3d023d (Provide a build time
default-pager setting, 2009-10-30) turned that constant into
a build-time setting which could be anything, but didn't
loosen the "else" to let DEFAULT_PAGER use the optimization.
Noticed-by: Dale R. Worley <worley@alum.mit.edu> Suggested-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
After commit 3fde386 (reset [--mixed]: use diff-based reset whether or
not pathspec was given), some code can be moved to the 'reset_type ==
MIXED' check.
Let's move the code that is specific to MIXED.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
gitweb: Fix the author initials in blame for non-ASCII names
Change the @author_initials feature Jakub added in v1.6.4-rc2-14-ga36817b to match non-ASCII author initials as intended.
The regexp Jakub added was intended to match
non-ASCII (/\b([[:upper:]])\B/g). But in Perl this doesn't actually
match non-ASCII upper-case characters unless the string being matched
against has the UTF8 flag.
So when we open a pipe to "git blame" we need to mark the file
descriptor we're opening as utf8 explicitly.
So as a result it abbreviates me to "AB" not "ÆAB", entirely because "Æ"
isn't /[[:upper:]]/ unless the string being matched against has the UTF8
flag.
Here's something that demonstrates the issue:
#!/usr/bin/env perl
use strict;
use warnings;
binmode STDOUT, ':utf8' if $ENV{UTF8};
open my $fd, "-|", "git", "blame", "--incremental", "--", "Makefile" or die "Can't open: $!";
binmode $fd, ":utf8" if $ENV{UTF8};
while (my $line = <$fd>) {
next unless my ($author) = $line =~ /^author (.*)/;
my @author_initials = ($author =~ /\b([[:upper:]])\B/g);
printf "%s (%s)\n", join("", @author_initials), $author;
}
When that's run with and without UTF8 being true in the environment it
gives, on git.git:
Acked-by: Jakub Narębski <jnareb@gmail.com> Tested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Tested-by: Simon Ruderich <simon@ruderich.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
has_sha1_file: re-check pack directory before giving up
When we read a sha1 file, we first look for a packed
version, then a loose version, and then re-check the pack
directory again before concluding that we cannot find it.
This lets us handle a process that is writing to the
repository simultaneously (e.g., receive-pack writing a new
pack followed by a ref update, or git-repack packing
existing loose objects into a new pack).
However, we do not do the same trick with has_sha1_file; we
only check the packed objects once, followed by loose
objects. This means that we might incorrectly report that we
do not have an object, even though we could find it if we
simply re-checked the pack directory.
By itself, this is usually not a big deal. The other process
is running simultaneously, so we may run has_sha1_file
before it writes, anyway. It is a race whether we see the
object or not. However, we may also see other things
the writing process has done (like updating refs); and in
that case, we must be able to also see the new objects.
For example, imagine we are doing a for_each_ref iteration,
and somebody simultaneously pushes. Receive-pack may write
the pack and update a ref after we have examined the
objects/pack directory, but before the iteration gets to the
updated ref. When we do finally see the updated ref,
for_each_ref will call has_sha1_file to check whether the
ref is broken. If has_sha1_file returns the wrong answer, we
erroneously will think that the ref is broken.
For a normal iteration without DO_FOR_EACH_INCLUDE_BROKEN,
this means that the caller does not see the ref at all
(neither the old nor the new value). So not only will we
fail to see the new value of the ref (which is acceptable,
since we are running simultaneously with the writer, and we
might well read the ref before the writer commits its
write), but we will not see the old value either. For
programs that act on reachability like pack-objects or
prune, this can cause data loss, as we may see the objects
referenced by the original ref value as dangling (and either
omit them from the pack, or delete them via prune).
There's no test included here, because the success case is
two processes running simultaneously forever. But you can
replicate the issue with:
# base.sh
# run this in one terminal; it creates and pushes
# repeatedly to a repository
git init parent &&
(cd parent &&
# create a base commit that will trigger us looking at
# the objects/pack directory before we hit the updated ref
echo content >file &&
git add file &&
git commit -m base &&
# set the unpack limit abnormally low, which
# lets us simulate full-size pushes using tiny ones
git config receive.unpackLimit 1
) &&
git clone parent child &&
cd child &&
n=0 &&
while true; do
echo $n >file && git add file && git commit -m $n &&
git push origin HEAD:refs/remotes/child/master &&
n=$(($n + 1))
done
# fsck.sh
# now run this simultaneously in another terminal; it
# repeatedly fscks, looking for us to consider the
# newly-pushed ref broken. We cannot use for-each-ref
# here, as it uses DO_FOR_EACH_INCLUDE_BROKEN, which
# skips the has_sha1_file check (and if it wants
# more information on the object, it will actually read
# the object, which does the proper two-step lookup)
cd parent &&
while true; do
broken=`git fsck 2>&1 | grep remotes/child`
if test -n "$broken"; then
echo $broken
exit 1
fi
done
Without this patch, the fsck loop fails within a few seconds
(and almost instantly if the test repository actually has a
large number of refs). With it, the two can run
indefinitely.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
It is tentatively called 1.8.5, but it should be an easy matter of
renaming the release-notes file and RelNotes symlink to later call
it 1.9 near the end of the cycle if we wanted to.
Some people still use rather old versions of bash, which cannot
grok some constructs like 'printf -v varname' the prompt and
completion code started to use recently.
* bc/completion-for-bash-3.0:
contrib/git-prompt.sh: handle missing 'printf -v' more gracefully
t9902-completion.sh: old Bash still does not support array+=('') notation
git-completion.bash: use correct Bash/Zsh array length syntax
Declare that the official grammar & spelling of the source of this
project is en_US, but strongly discourage patches only to "fix"
existing en_UK strings to avoid unnecessary churns.
* mb/docs-favor-en-us:
Provide some linguistic guidance for the documentation.
The text mentions core.pager and GIT_PAGER without giving the
overall picture of precedences. Borrow a better description from
the git-var(1) documentation.
The use of the mechanism to allow system-wide, global and
per-repository configuration files is not limited to this particular
variable. Remove it to clarify the paragraph.
Rewrite the part that explains how the environment variable LESS is
set to Git's default value, and how to selectively customize it.
Commit 4337b58 (do not write null sha1s to on-disk index,
2012-07-28) added a safety check preventing git from writing
null sha1s into the index. The intent was to catch errors in
other parts of the code that might let such an entry slip
into the index (or worse, a tree).
Some existing repositories may have invalid trees that
contain null sha1s already, though. Until 4337b58, a common
way to clean this up would be to use git-filter-branch's
index-filter to repair such broken entries. That now fails
when filter-branch tries to write out the index.
Introduce a GIT_ALLOW_NULL_SHA1 environment variable to
relax this check and make it easier to recover from such a
history.
It is tempting to not involve filter-branch in this commit
at all, and instead require the user to manually invoke
GIT_ALLOW_NULL_SHA1=1 git filter-branch ...
to perform an index-filter on a history with trees with null
sha1s. That would be slightly safer, but requires some
specialized knowledge from the user. So let's set the
GIT_ALLOW_NULL_SHA1 variable automatically when checking out
the to-be-filtered trees. Advice on using filter-branch to
remove such entries already exists on places like
stackoverflow, and this patch makes it Just Work again on
recent versions of git.
Further commands that touch the index will still notice and
fail, unless they actually remove the broken entries. A
filter-branch whose filters do not touch the index at all
will not error out (since we complain of the null sha1 only
on writing, not when making a tree out of the index), but
this is acceptable, as we still print a loud warning, so the
problem is unlikely to go unnoticed.
Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sparse issues an "'prepare_transport' was not declared. Should it
be static?" warning. In order to suppress the warning, since this
symbol only requires file scope, we simply add the static modifier
to it's declaration.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The documentation for "diff-files" mode of "git diff" primarily
talks about how changes in the files in the working tree are shown
relative to the contents previously added to that index, and tucks
explanation on how "--no-index" mode, which works in a quite
different way, may be implicitly used instead. Instead, add a
separate paragraph to explain what "--no-index" mode does, and also
mention when "--no-index" can be omitted from the command line
(essentially, when it is obvious from the context).
mailmap: handle mailmap blobs without trailing newlines
The read_mailmap_buf function reads each line of the mailmap
using strchrnul, like:
const char *end = strchrnul(buf, '\n');
unsigned long linelen = end - buf + 1;
But that's off-by-one when we actually hit the NUL byte; our
line does not have a terminator, and so is only "end - buf"
bytes long. As a result, when we subtract the linelen from
the total len, we end up with (unsigned long)-1 bytes left
in the buffer, and we start reading random junk from memory.
We could fix it with:
unsigned long linelen = end - buf + !!*end;
but let's take a step back for a moment. It's questionable
in the first place for a function that takes a buffer and
length to be using strchrnul. But it works because we only
have one caller (and are only likely to ever have this one),
which is handing us data from read_sha1_file. Which means
that it's always NUL-terminated.
Instead of tightening the assumptions to make the
buffer/length pair work for a caller that doesn't actually
exist, let's let loosen the assumptions to what the real
caller has: a modifiable, NUL-terminated string.
This makes the code simpler and shorter (because we don't
have to correlate strchrnul with the length calculation),
correct (because the code with the off-by-one just goes
away), and more efficient (we can drop the extra allocation
we needed to create NUL-terminated strings for each line,
and just terminate in place).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove unnecessary quoting.
Simplify description of three-way merge.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Ackermann <th.acker@arcor.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git pull ." works, but "git merge" is the recommended
way for new users to do things. (The old description
also should have read "The former is actually *not* very
commonly used".)
Signed-off-by: Thomas Ackermann <th.acker@arcor.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Call it "Git User Manual" and remove reference to very old Git version
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Ackermann <th.acker@arcor.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When core.precomposeunicode was introduced in 76759c7d,
it was set to false on a unicode decomposing file system like HFS+
to be compatible with older versions of Git.
The Mac OS users need to find out that this configuration exist
and change it manually from false to true.
A smoother workflow can be achieved,
so set core.precomposeunicode to true on a decomposing file system.
Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
config: do not use C function names as struct members
According to C99, section 7.1.4:
Any function declared in a header may be additionally
implemented as a function-like macro defined in the
header.
Therefore calling our struct member function pointer "fgetc"
may run afoul of unwanted macro expansion when we call:
char c = cf->fgetc(cf);
This turned out to be a problem on uclibc, which defines
fgetc as a macro and causes compilation failure.
The standard suggests fixing this in a few ways:
1. Using extra parentheses to inhibit the function-like
macro expansion. E.g., "(cf->fgetc)(cf)". This is
undesirable as it's ugly, and each call site needs to
remember to use it (and on systems without the macro,
forgetting will compile just fine).
2. Using #undef (because a conforming implementation must
also be providing fgetc as a function). This is
undesirable because presumably the implementation was
using the macro for a performance benefit, and we are
dropping that optimization.
Instead, we can simply use non-colliding names.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'todo' sheet for interactive rebase shows abbreviated SHA-1's and
then performs its operations upon those shortened values. This can lead
to an abort if the SHA-1 of a reworded or edited commit is no longer
unique within the abbreviated SHA-1 space and a subsequent SHA-1 in the
todo list has the same abbreviated value.
If, after editing, the new SHA-1 of "first" also has prefix badbeef,
then the subsequent 'pick badbeef second' will fail since badbeef is no
longer a unique SHA-1 abbreviation:
error: short SHA1 badbeef is ambiguous.
fatal: Needed a single revision
Invalid commit name: badbeef
Fix this problem by expanding the SHA-1's in the todo list before
performing the operations.
[es: also collapse & expand SHA-1's for --edit-todo; respect
core.commentchar in transform_todo_ids(); compose commit message]
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t3404: rebase -i: demonstrate short SHA-1 collision
The 'todo' sheet for interactive rebase shows abbreviated SHA-1's and
then performs its operations upon those shortened values. This can lead
to an abort if the SHA-1 of a reworded or edited commit is no longer
unique within the abbreviated SHA-1 space and a subsequent SHA-1 in the
todo list has the same abbreviated value.
If, after editing, the new SHA-1 of "first" also has prefix badbeef,
then the subsequent 'pick badbeef second' will fail since badbeef is no
longer a unique SHA-1 abbreviation:
error: short SHA1 badbeef is ambiguous.
fatal: Needed a single revision
Invalid commit name: badbeef
Demonstrate this problem with a couple of specially crafted commits
which initially have distinct abbreviated SHA-1's, but for which the
abbreviated SHA-1's collide after a simple rewording of the first
commit's message.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
As its very first action, t3404 installs (via set_fake_editor) a
specialized $EDITOR which simplifies automated 'rebase -i' testing. Many
tests rely upon this setting, thus tests which need a different editor
must take extra care upon completion to restore $EDITOR in order to
avoid breaking following tests. This places extra burden upon such tests
and requires that they undesirably have extra knowledge about
surrounding tests. Ease this burden by having each test install the
$EDITOR it requires, rather than relying upon a global setting.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
fetch-pack: do not remove .git/shallow file when --depth is not specified
fetch_pack() can remove .git/shallow file when a shallow repository
becomes a full one again. This behavior is triggered incorrectly when
tags are also fetched because fetch_pack() will be called twice. At
the first fetch_pack() call:
- shallow_lock is set up
- alternate_shallow_file points to shallow_lock.filename, which is
"shallow.lock"
- commit_lock_file is called, which sets shallow_lock.filename to "".
alternate_shallow_file also becomes "" because it points to the
same memory.
At the second call, setup_alternate_shallow() is not called and
alternate_shallow_file remains "". It's mistaken as unshallow case and
.git/shallow is removed. The end result is a broken repository.
Fix this by always initializing alternate_shallow_file when
fetch_pack() is called. As an extra measure, check if args->depth > 0
before commit/rollback shallow file.
Reported-by: Kacper Kornet <kornet@camk.edu.pl> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Avoid command substitution and pipes to ensure that the exit status
from each git command is tested (and in particular that any segfaults
are caught).
Maintain the test setup (no commits, one file named "a", another named
"b") even after the last test, to make it easier to rearrange tests or
add new tests after the last in the future.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test 'reset -p' uses git-reset -p, so it depends on the perl code.
Signed-off-by: Kacper Kornet <draenog@pld-linux.org> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
add -i test: use skip_all instead of repeated PERL prerequisite
It is too easy to forget to add the PERL prerequisite for new
"add -i" tests, especially given that many people do not test with
NO_PERL so the missing prereq is not always noticed quickly.
The test had used the skip_all mechanism since 1b19ccd2 (2009-04-03)
but switched to explicit PERL prereqs in f0459319 (2010-10-13) in hope
of helping people see how many tests were skipped, perhaps to motivate
them to tweak their platform or tests to improve test coverage. That
didn't pan out much in practice, so let's move back to the simpler
skip_all method.
Reported-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make test "using invalid commit with -C" more strict
In the test 'using invalid commit with -C' git-commit would have failed
even if the -C option had been given the correct commit, as there was
nothing to commit. Pass --allow-empty to make sure it would make a commit,
were there no issues with the argument given to the -C option.
Signed-off-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
test index-pack on packs with recoverable delta cycles
The previous commit added tests to show that index-pack
correctly bails in unrecoverable situations. There are some
situations where the data could be recovered, but it is not
currently:
1. If we can break the cycle using an object from another
pack via --fix-thin.
2. If we can break the cycle using a duplicate of one of
the objects found in the same pack.
Note that neither of these is particularly high priority; a
delta cycle within a pack should never occur, and we have no
record of even a buggy git implementation creating such a
pack.
However, it's worth adding these tests for two reasons. One,
to document that we do not currently handle the situation,
even though it is possible. And two, to exercise the code
that runs in this situation; even though it fails, by
running it we can confirm that index-pack detects the
situation and aborts, and does not misbehave (e.g., by
following the cycle in an infinite loop).
In both cases, we hit an assert that aborts index-pack.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we receive a broken or malicious pack from a remote, we
will feed it to index-pack. As index-pack processes the
objects as a stream, reconstructing and hashing each object
to get its name, it is not very susceptible to doing the
wrong with bad data (it simply notices that the data is
bogus and aborts).
However, one question raised on the list is whether it could
be susceptible to problems during the delta-resolution
phase. In particular, can a cycle in the packfile deltas
cause us to go into an infinite loop or cause any other
problem?
The answer is no.
We cannot have a cycle of delta-base offsets, because they
go only in one direction (the OFS_DELTA object mentions its
base by an offset towards the beginning of the file, and we
explicitly reject negative offsets).
We can have a cycle of REF_DELTA objects, which refer to
base objects by sha1 name. However, index-pack does not know
these sha1 names ahead of time; it has to reconstruct the
objects to get their names, and it cannot do so if there is
a delta cycle (in other words, it does not even realize
there is a cycle, but only that there are items that cannot
be resolved).
Even though we can reason out that index-pack should handle
this fine, let's add a few tests to make sure it behaves
correctly.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sha1-lookup: handle duplicate keys with GIT_USE_LOOKUP
The sha1_entry_pos function tries to be smart about
selecting the middle of a range for its binary search by
looking at the value differences between the "lo" and "hi"
constraints. However, it is unable to cope with entries with
duplicate keys in the sorted list.
We may hit a point in the search where both our "lo" and
"hi" point to the same key. In this case, the range of
values between our endpoints is 0, and trying to scale the
difference between our key and the endpoints over that range
is undefined (i.e., divide by zero). The current code
catches this with an "assert(lov < hiv)".
Moreover, after seeing that the first 20 byte of the key are
the same, we will try to establish a value from the 21st
byte. Which is nonsensical.
Instead, we can detect the case that we are in a run of
duplicates, and simply do a final comparison against any one
of them (since they are all the same, it does not matter
which). If the keys match, we have found our entry (or one
of them, anyway). If not, then we know that we do not need
to look further, as we must be in a run of the duplicate
key.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git commit --author=$name" sets the author to one whose name
matches the given string from existing commits, when $name is not in
the "Name <e-mail>" format. However, it does not honor the mailmap
to use the canonical name for the author found this way.
Fix it by telling the logic to find a matching existing author to
honor the mailmap, and use the name and email after applying the
mailmap.
Signed-off-by: Antoine Pelisse <apelisse@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
dir.c::test_one_path(): work around directory_exists_in_index_icase() breakage
directory_exists_in_index() takes pathname and its length, but its
helper function directory_exists_in_index_icase() reads one byte
beyond the end of the pathname and expects there to be a '/'.
This needs to be fixed, as that one-byte-beyond-the-end location may
not even be readable, possibly by not registering directories to
name hashes with trailing slashes. In the meantime, update the new
caller added recently to treat_one_path() to make sure that the path
buffer it gives the function is one byte longer than the path it is
asking the function about by appending a slash to it.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test-sha1 helper program will run our internal sha1
routines over its input and output the 40-byte hex sha1.
Sometimes, however, it is useful to have the binary 20-byte
sha1 (and it's a pain to convert back in the shell). Let's
add a "-b" option to output the binary version.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
contrib/git-prompt.sh: handle missing 'printf -v' more gracefully
Old Bash (3.0) which is distributed with RHEL 4.X and other ancient
platforms that are still in wide use, do not have a printf that
supports -v. Neither does Zsh (which is already handled in the code).
As suggested by Junio, let's test whether printf supports the -v
option and store the result. Then later, we can use it to
determine whether 'printf -v' can be used, or whether printf
must be called in a subshell.
Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t9902-completion.sh: old Bash still does not support array+=('') notation
Old Bash (3.0) which is distributed with RHEL 4.X and other ancient
platforms that are still in wide use, does not understand the
array+=() notation. Let's use an explicit assignment to the new array
element which works everywhere, like:
array[${#array[@]}+1]=''
The right-hand side '' is not strictly necessary, but in this case
I think it is more clear.
Signed-off-by: Brandon Casey <drafnel@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rebase --preserve-merges: ignore "merge.log" config
When "merge.log" config is set, "rebase --preserve-merges" will add
the log lines to the message of the rebased merge commit. A rebase
should not modify a commit message automatically.
Teach "git-rebase" to ignore that configuration by passing
"--no-log" to the git-merge call.
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The search help link was a superscript question mark right next to
a drop-down menu, which looks misaligned and is a cramped and
awkward click target. Remove the superscript tags and add some
spacing to fix these nits. Add a title attribute to provide an
explanatory mouseover.
Signed-off-by: Tony Finch <dot@dotat.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
gitweb: omit the repository owner when it is unset
On the repository summary page, leave the owner line out if the
repo does not have an owner, rather than displaying a labelled empty
field. This does not affect the owner column in the projects list
page, which is present unless $omit_owner is true.
Signed-off-by: Tony Finch <dot@dotat.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The rss_logo CSS style has a fixed width which is too narrow for
the string "OPML". Replace the fixed width with horizontal padding
so the text fits with nice margins.
Signed-off-by: Tony Finch <dot@dotat.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>