Code clean-up.
* rs/move-array:
ls-files: don't try to prune an empty index
apply: use COPY_ARRAY and MOVE_ARRAY in update_image()
use MOVE_ARRAY
add MOVE_ARRAY
Code clean-up.
* rs/bswap-ubsan-fix:
bswap: convert get_be16, get_be32 and put_be32 to inline functions
bswap: convert to unsigned before shifting in get_be32
A recently added test for the "credential-cache" helper revealed
that EOF detection done around the time the connection to the cache
daemon is torn down were flaky. This was fixed by reacting to
ECONNRESET and behaving as if we got an EOF.
* dl/credential-cache-socket-in-xdg-cache:
credential-cache: interpret an ECONNRESET as an EOF
When a directory is not readable, "gitweb" fails to build the
project list. Work this around by skipping such a directory.
It might end up hiding a problem under the rug and a better
solution might be to loudly complain to the administrator pointing
out the problematic directory, but this will at least make it
"work".
* hb/gitweb-project-list:
gitweb: skip unreadable subdirectories
"git commit" when seeing an totally empty message said "you did not
edit the message", which is clearly wrong. The message has been
corrected.
* ks/commit-abort-on-empty-message-fix:
commit: check for empty message before the check for untouched template
Numerous bugs in walking of reflogs via "log -g" and friends have
been fixed.
* jk/reflog-walk:
reflog-walk: apply --since/--until to reflog dates
reflog-walk: stop using fake parents
rev-list: check reflog_info before showing usage
get_revision_1(): replace do-while with an early return
log: do not free parents when walking reflog
log: clarify comment about reflog cycles
revision: disallow reflog walking with revs->limited
t1414: document some reflog-walk oddities
The http.{sslkey,sslCert} configuration variables are to be
interpreted as a pathname that honors "~[username]/" prefix, but
weren't, which has been fixed.
* jc/http-sslkey-and-ssl-cert-are-paths:
http.c: http.sslcert and http.sslkey are both pathnames
"%C(color name)" in the pretty print format always produced ANSI
color escape codes, which was an early design mistake. They now
honor the configuration (e.g. "color.ui = never") and also tty-ness
of the output medium.
* jk/ref-filter-colors:
ref-filter: consult want_color() before emitting colors
pretty: respect color settings for %C placeholders
rev-list: pass diffopt->use_colors through to pretty-print
for-each-ref: load config earlier
color: check color.ui in git_default_config()
ref-filter: pass ref_format struct to atom parsers
ref-filter: factor out the parsing of sorting atoms
ref-filter: make parse_ref_filter_atom a private function
ref-filter: provide a function for parsing sort options
ref-filter: move need_color_reset_at_eol into ref_format
ref-filter: abstract ref format into its own struct
ref-filter: simplify automatic color reset
t: use test_decode_color rather than literal ANSI codes
docs/for-each-ref: update pointer to color syntax
check return value of verify_ref_format()
Because recent Git for Windows do come with a real msgfmt, the
build procedure for git-gui has been updated to use it instead of a
hand-rolled substitute.
* js/git-gui-msgfmt-on-windows:
git-gui (MinGW): make use of MSys2's msgfmt
git gui: allow for a long recentrepo list
git gui: de-dup selected repo from recentrepo history
git gui: cope with duplicates in _get_recentrepo
git-gui: remove duplicate entries from .gitconfig's gui.recentrepo
These used to be for manipulating the in-memory repo_tree structure,
but nowadays they are convenience wrappers to handle a few git-vs-svn
mismatches:
1. Git does not track empty directories but Subversion does. When
looking up a path in git that Subversion thinks exists and finding
nothing, we can safely assume that the path represents a
directory. This is needed when a later Subversion revision
modifies that directory.
2. Subversion allows deleting a file by copying. In Git fast-import
we have to handle that more explicitly as a deletion.
These are details of the tool's interaction with git fast-import.
Move them to fast_export.c, where other such details are handled.
This way the function names do not start with a repo_ prefix that
would clash with the repository object introduced in
v2.14.0-rc0~38^2~16 (repository: introduce the repository object,
2017-06-22) or an svn_ prefix that would clash with libsvn (in case
someone wants to link this code with libsvn some day).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since v1.7.10-rc0~118^2~4^2~4^2~3 (vcs-svn: pass paths through to
fast-import, 2010-12-13) this is an alias for fast_export_delete.
Remove the unnecessary layer of indirection.
No functional change intended.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the rest of Git, these modes are spelled as S_IFDIR,
S_IFREG | 0644, S_IFREG | 0755, and S_IFLNK. Use the same constants
in svn-fe for simplicity and consistency.
No functional change intended.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
I forgot to remove these in v1.7.10-rc0~118^2~4^2~5^2~4 (vcs-svn:
eliminate repo_tree structure, 2010-12-10).
This finishes what was started in commit 36f63b50 (vcs-svn: remove
unused prototypes, 2017-08-21).
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The documentation for pack-objects describes that it creates "a packed
archive of objects", which is confusing because it may create multiple
packs if --max-pack-size is set. Update the documentation to clarify
this, and explaining in which cases such a feature would be useful.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a file .tsan-suppressions and list two functions in it: want_color()
and transfer_debug(). Both of these use the pattern
static int foo = -1;
if (foo < 0)
foo = bar();
where bar always returns the same non-negative value. This can cause
ThreadSanitizer to diagnose a race when foo is written from two threads.
That is indeed a race, although it arguably doesn't matter in practice
since it's always the same value that is written.
Add NEEDSWORK-comments to the functions so that this problem is not
forever swept way under the carpet.
The suppressions-file is used by setting the environment variable
TSAN_OPTIONS to, e.g., "suppressions=$(pwd)/.tsan-suppressions". Observe
that relative paths such as ".tsan-suppressions" might not work.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
strbuf_setlen(., 0) writes '\0' to sb.buf[0], where buf is either
allocated and unique to sb, or the global slopbuf. The slopbuf is meant
to provide a guarantee that buf is not NULL and that a freshly
initialized buffer contains the empty string, but it is not supposed to
be written to. That strbuf_setlen writes to slopbuf has at least two
implications:
First, it's wrong in principle. Second, it might be hiding misuses which
are just waiting to wreak havoc. Third, ThreadSanitizer detects a race
when multiple threads write to slopbuf at roughly the same time, thus
potentially making any more critical races harder to spot.
Avoid writing to strbuf_slopbuf in strbuf_setlen. Let's instead assert
on the first byte of slopbuf being '\0', since it helps ensure the
promised invariant of buf[len] == '\0'. (We know that "len" was already
0, or someone has messed with "alloc". If someone has fiddled with the
fields that much beyond the correct interface, they're on their own.)
This is a function which is used in many places, possibly also in hot
code paths. There are two branches in strbuf_setlen already, and we are
adding a third and possibly a fourth (in the assert). In hot code paths,
we hopefully reuse the buffer in order to avoid continous reallocations.
Thus, after a start-up phase, we should always take the same path,
which might help branch prediction, and we would never make the assert.
If a hot code path continuously reallocates, we probably have bigger
performance problems than this new safety-check.
Simple measurements do not contradict this reasoning. 100000000 times
resetting a buffer and adding the empty string takes 5.29/5.26 seconds
with/without this patch (best of three). Releasing at every iteration
yields 18.01/17.87. Adding a 30-character string instead of the empty
string yields 5.61/5.58 and 17.28/17.28(!).
This patch causes the git binary emitted by gcc 5.4.0 -O2 on my machine
to grow from 11389848 bytes to 11497184 bytes, an increase of 0.9%.
I also tried to piggy-back on the fact that we already check alloc,
which should already tell us whether we are using the slopbuf:
if (sb->alloc) {
if (len > sb->alloc - 1)
die("BUG: strbuf_setlen() beyond buffer");
sb->buf[len] = '\0';
} else {
if (len)
die("BUG: strbuf_setlen() beyond buffer");
assert(!strbuf_slopbuf[0]);
}
sb->len = len;
That didn't seem to be much slower (5.38, 18.02, 5.70, 17.32 seconds),
but it does introduce some minor code duplication. The resulting git
binary was 11510528 bytes large (another 0.1% increase).
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If the `git merge` process is killed while waiting for the editor to
finish, the merge state is lost but the prepared merge msg and tree is kept.
So, a subsequent `git commit` creates a squashed merge even when the
user asked for proper merge commit originally.
Demonstrate the problem with a test crafted after the in t7502. The test
requires EXECKEEPSPID (thus does not run under MINGW).
Save the merge state earlier (in the non-squash case) so that it does
not get lost. This makes the test pass.
Reported-by: hIpPy <hippy2981@gmail.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
write_merge_state() writes out the merge heads, mode, and msg. But we
may want to write out heads, mode without the msg. So, split out heads
(+mode) into a separate function write_merge_heads() that is called by
write_merge_state().
No funtional change so far, except when these non-atomic writes are
interrupted: we write heads-mode-msg now when we used to write
heads-msg-mode.
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
prepare_to_commit() cannot be reached in the non-squash case:
It is called by merge_trivial() and finish_automerge() only, but the
calls to the latter are somewhat hard to track:
If option_commit is not set, the code in cmd_merge() uses a fake
conflict return code (ret=1) to avoid writing the tree, which also
avoids setting automerge_was_ok (just as in the proper ret==1 case), so
that finish_automerge() is not called.
To ensure that no code change breaks that assumption, safe-guard
prepare_to_commit() by a BUG() statement.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When checking the conditional of "while (me->remaining)", we did not
hold the lock. Calling find_deltas would still be safe, since it checks
"remaining" (after taking the lock) and is able to handle all values. In
fact, this could (currently) not trigger any bug: a bug could happen if
`remaining` transitioning from zero to non-zero races with the evaluation
of the while-condition, but these are always separated by the
data_ready-mechanism.
Make sure we have the lock when we read `remaining`. This does mean we
release it just so that find_deltas can take it immediately again. We
could tweak the contract so that the lock should be taken before calling
find_deltas, but let's defer that until someone can actually show that
"unlock+lock" has a measurable negative impact.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
convert_attrs contains an "if-else". In the "if", we set attr_action
twice, and the first assignment has no effect. In the "else", we do not
set it at all. Since git_check_attr always returns the same value, we'll
always end up in the "if", so there is no problem right now. But
convert_attrs is obviously trying not to rely on such an
implementation-detail of another component.
Make the initialization of attr_action after the if-else. Remove the
earlier assignments.
Suggested-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, 'git merge --continue' is mentioned but not explained.
Explain it.
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There were several functions in the Subversion code that started with
"repo_". This namespace is also used by the Git struct repository code.
Rename these functions to start with "svn_repo" to avoid any future
conflicts.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The Subversion code had prototypes for several functions which were not
ever defined or used. These functions all had names starting with
"repo_", some of which conflict with those in repository.h. To avoid
the conflict, remove those unused prototypes.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Saying "the this" is an obvious typo. But while we're here,
let's polish the English on the second half of the sentence,
too.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a file had been commited with CRLF but now .gitattributes say
"* text=auto" (or core.autocrlf is true), the following does not
roundtrip, `git apply` fails:
printf "Added line\r\n" >>file &&
git diff >patch &&
git checkout -- . &&
git apply patch
Before applying the patch, the file from working tree is converted
into the index format (clean filter, CRLF conversion, ...). Here,
when commited with CRLF, the line endings should not be converted.
Note that `git apply --index` or `git apply --cache` doesn't call
convert_to_git() because the source material is already in index
format.
Analyze the patch if there is a) any context line with CRLF, or b)
if any line with CRLF is to be removed. In this case the patch file
`patch` has mixed line endings, for a) it looks like this:
diff --git a/one b/one
index 533790e..c30dea8 100644
--- a/one
+++ b/one
@@ -1 +1,2 @@
a\r
+b\r
And for b) it looks like this:
diff --git a/one b/one
index 533790e..485540d 100644
--- a/one
+++ b/one
@@ -1 +1 @@
-a\r
+b\r
If `git apply` detects that the patch itself has CRLF, (look at the
line " a\r" or "-a\r" above), the new flag crlf_in_old is set in
"struct patch" and two things will happen:
- read_old_data() will not convert CRLF into LF by calling
convert_to_git(..., SAFE_CRLF_KEEP_CRLF);
- The WS_CR_AT_EOL bit is set in the "white space rule",
CRLF are no longer treated as white space.
While at there, make it clear that read_old_data() in apply.c knows
what it wants convert_to_git() to do with respect to CRLF. In fact,
this codepath is about applying a patch to a file in the filesystem,
which may not exist in the index, or may exist but may not match
what is recorded in the index, or in the extreme case, we may not
even be in a Git repository. If convert_to_git() peeked at the
index while doing its work, it *would* be a bug.
Pass NULL instead of &the_index to convert_to_git() to make sure we
catch future bugs to clarify this.
Update the test in t4124: split one test case into 3:
- Detect the " a\r" line in the patch
- Detect the "-a\r" line in the patch
- Use LF in repo and CLRF in the worktree.
Reported-by: Anthony Sottile <asottile@umich.edu>
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
53b2c823f6 (revision walker: mini clean-up) added the function in 2007,
but it was never used, so we should be able to get rid of it now.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reject directories with the attribute export-ignore already while
queuing them. This prevents read_tree_recursive() from descending into
them and this avoids write_archive_entry() rejecting them later on,
which queue_or_write_archive_entry() is not prepared for.
Borrow the existing strbuf to build the full path to avoid string
copies and extra allocations; just make sure we restore the original
value before moving on.
Keep checking any other attributes in write_archive_entry() as before,
but avoid checking them twice.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add helpers for accessing attributes that encapsulate the details of how
to retrieve their values.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Demonstrate mishandling of the attribute export-ignore by git archive
when used together with pathspecs. Wildcard pathspecs can even cause it
to abort. And a directory excluded without a wildcard is still included
as an empty folder in the archive.
Test-case-by: David Adam <zanchey@ucc.gu.uwa.edu.au>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`*` in format strings means peeling of tag objects so that object field
names refer to the object that the tag object points at, instead of the
tag object itself.
Currently, this is documented using grammar that is clearly inspired by
classical latin, though missing more than an article in order to be
classical english.
Try and straighten that explanation out a bit.
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Various commands list refs and allow to use a format string for the
output that interpolates from the ref as well as the object it points
at (for-each-ref; branch and tag in list mode).
Currently, the documentation talks about interpolating from the object.
This is confusing because a ref points to an object but not vice versa,
so the object cannot possible know %(refname), for example. Thus, this is
wrong independent of refs being objects (one day, maybe) or not.
Change the wording to make this clearer (and distinguish it from formats
for the log family).
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The handling of `status_only` no longer interferes with the handling of
`unmatch_name_only`. `--quiet` no longer affects the exit code when using
`-L`/`--files-without-match`.
Signed-off-by: Anthony Sottile <asottile@umich.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This could have been part of 48308681b0 (git submodule update: have a
dedicated helper for cloning, 2016-02-29).
Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When convert_to_git() is called, the caller may want to keep CRLF to
be kept as CRLF (and not converted into LF).
This will be used in the next commit, when apply works with files
that have CRLF and patches are applied onto these files.
Add the new value "SAFE_CRLF_KEEP_CRLF" to safe_crlf.
Prepare convert_to_git() to be able to run the clean filter, skip
the CRLF conversion and run the ident filter.
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In handshake_capabilities() we use warning() when a capability
is not supported, so the exit code of the function is 0 and no
further error is shown. This is a problem because the warning
message doesn't tell us which subprocess cmd failed.
On the contrary if we cannot write a packet from this function,
we use error() and then subprocess_start() outputs:
initialization for subprocess '<cmd>' failed
so we can know which subprocess cmd failed.
Let's improve the warning() message, so that we can know which
subprocess cmd failed.
Helped-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
read_info_alternates is not used from outside, so let's make it static.
We have to declare the function before link_alt_odb_entry instead of
moving the code around, link_alt_odb_entry calls read_info_alternates,
which in turn calls link_alt_odb_entry.
Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
sum(1) is a command for calculating checksums of the contents of files.
It was part of early editions of Unix ("Research Unix", 1972/1973, [1]).
cksum(1) appeared in 4.4BSD (1993) as a replacement [2], and became part
of POSIX.1-2008 [3]. OpenBSD 5.6 (2014) removed sum(1).
We only use sum(1) in t1002 to check for changes in three files. On
MinGW we use md5sum(1) instead. We could switch to the standard command
cksum(1) for all platforms; MinGW comes with GNU coreutils now, which
provides sum(1), cksum(1) and md5sum(1). Use our standard method for
checking for file changes instead: test_cmp.
It's more convenient because it shows differences nicely, it's faster on
MinGW because we have a special implementation there based only on
shell-internal commands, it's simpler as it allows us to avoid stripping
out unnecessary entries from the checksum file using grep(1), and it's
more consistent with the rest of the test suite.
We already compare changed files with their expected new contents using
diff(1), so we don't need to check with "test_must_fail test_cmp" if
they differ from their original state. A later patch could convert the
direct diff(1) calls to test_cmp as well.
With all sum(1) calls gone, remove the MinGW-specific implementation
from test-lib.sh as well.
[1] http://minnie.tuhs.org/cgi-bin/utree.pl?file=V3/man/man1/sum.1
[2] http://minnie.tuhs.org/cgi-bin/utree.pl?file=4.4BSD/usr/share/man/cat1/cksum.0
[3] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/cksum.html
Signed-off-by: René Scharfe <l.s.r@web.de>
Reviewed-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`git config --bool xxx.yyy` returns `true` for `[xxx]yyy` but
`false` for `[xxx]yyy=` or `[xxx]yyy=""`. This is tested in
t1300-repo-config.sh since 09bc098c2.
Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The `no_changes` function calls the `untracked_files` function through
command substitution. `untracked_files` will return null bytes because it
runs ls-files with the '-z' option.
Bash since version 4.4 warns about these null bytes. As they are not
required for the test that is being done, make sure `untracked_files`
does not output null bytes when not required.
This is achieved by adding a parameter to the `untracked_files` function to
specify wither `-z` should be passed to ls-files or not.
This warning is triggered when running git stash save -u resulting in
two warnings:
git-stash: line 43: warning: command substitution: ignored null byte
in input
Signed-off-by: Kevin Daudt <me@ikke.info>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When unpack_entry() encounters a broken packed object, it returns early.
It adjusts the reference count of the pack window, but leaks the buffer
for a big delta stack in case the small automatic one was not enough.
Jump to the cleanup code at end instead, which takes care of that.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move the code for releasing tree buffers and commit buffers in
fsck_obj() to the end of the function and make sure it's executed no
matter of an error is encountered or not.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
getdelim(3) returns -1 at the end of the file and if it encounters an
error, but sets errno only in the latter case. Set errno to zero before
calling it to avoid misdiagnosing an out-of-memory condition due to a
left-over value from some other function call.
Reported-by: Yaroslav Halchenko <yoh@onerussian.com>
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
