A test marked with EXPENSIVE creates two 2.5GB files and adds them to
the repository. This takes 194s to run on my machine, versus 2s when the
EXPENSIVE prereq isn't set. We can trim this down a bit by doing two
things:
- use "git commit --quiet" to avoid spending time generating a diff
summary (this actually only helps for the second commit, but I've
added it here to both for consistency). This shaves off 8s.
- set core.compression to 0. We know these files are full of random
bytes, and so won't compress (that's the point of the test!).
Spending cycles on zlib is pointless. This shaves off 122s.
After this, my total time to run the script is 64s. That won't help
normal runs without GIT_TEST_LONG set, of course, but it's easy enough
to do.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The traditional gmtime(), localtime(), ctime(), and asctime() functions
return pointers to shared storage. This means they're not thread-safe,
and they also run the risk of somebody holding onto the result across
multiple calls (where each call invalidates the previous result).
All callers should be using their reentrant counterparts.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To generate its filename, the 'git bugreport' builtin asks the system
for the current time with 'localtime()'. Since this uses a shared
buffer, it is not thread-safe.
Even though 'git bugreport' is not multi-threaded, using localtime() can
trigger some static analysis tools to complain, and a quick
$ git grep -oh 'localtime\(_.\)\?' -- **/*.c | sort | uniq -c
shows that the only usage of the thread-unsafe 'localtime' is in a piece
of documentation.
So, convert this instance to use the thread-safe version for
consistency, and to appease some analysis tools.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We spawn an external pack-objects process to actually send objects to
the remote side. If we are killed by a signal during this process, then
pack-objects may continue to run. As soon as it starts producing output
for the pack, it will see a failure writing to upload-pack and exit
itself. But before then, it may do significant work traversing the
object graph, compressing deltas, etc, which will all be pointless. So
let's make sure to kill as soon as we know that the caller will not read
the result.
There's no test here, since it's inherently racy, but here's an easy
reproduction is on a large-ish repo like linux.git:
- make sure you don't have pack bitmaps (since they make the enumerating
phase go quickly). For linux.git it takes ~30s or so to walk the
whole graph on my machine.
- run "git clone --no-local -q . dst"; the "-q" is important because
if pack-objects is writing progress to upload-pack (to get
multiplexed over the sideband to the client), then it will notice
pretty quickly the failure to write to stderr
- kill the client-side clone process in another terminal (don't use
^C, as that will send SIGINT to all of the processes)
- run "ps au | grep git" or similar to observe upload-pack dying
within 5 seconds (it will send a keepalive that will notice the
client has gone away)
- but you'll still see pack-objects consuming 100% CPU (and 1GB+ of
RAM) during the traversal and delta compression phases. It will exit
as soon as it starts to write the pack (when it will notice that
upload-pack went away).
With this patch, pack-objects exits as soon as upload-pack does.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git imap-send does not parse the default git config settings and thus ignore
core.askpass value.
Rewrite config parsing to support core settings.
Reported-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Turns out we always need to set the ignored prefix (compset) to have
similar behavior as in default Bash.
The issue can be seen with:
git show master:<tab>
Commit 94b2901cfe wrongly removed it.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The library was removed 7 years ago on commit ae34ac126f. But not from
the .gitignore file.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We can remove one level of indentation and make the code clearer.
No functional changes.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Multiple "credential-store" backends can race to lock the same
file, causing everybody else but one to fail---reattempt locking
with some timeout to reduce the rate of the failure.
* sa/credential-store-timeout:
crendential-store: use timeout when locking file
A test script got cleaned up and then made not to depend on the
value of init.defaultBranch.
* js/t3404-master-to-primary:
t3404: do not depend on any specific default branch name
Config parser fix for "git notes".
* na/notes-displayref-is-not-boolean:
t3301: test proper exit response to no-value notes.displayRef.
notes.c: fix a segfault in notes_display_config()
Expectation for the original contributor after responding to a
review comment to use the explanation in a patch update has been
described.
* jc/do-not-just-explain-but-update-your-patch:
MyFirstContribition: answering questions is not the end of the story
Fix formulation of an error message with two placeholders in "git
worktree add" subcommand.
* mt/worktree-error-message-fix:
worktree: fix order of arguments in error message
Fix an option name in "gc" documentation.
* ab/gc-keep-base-option:
gc: rename keep_base_pack variable for --keep-largest-pack
gc docs: change --keep-base-pack to --keep-largest-pack
A test script got cleaned up not to depend on the value of
init.defaultBranch.
* js/t4015-wo-master:
t4015: let the test pass with any default branch name
A test script got cleaned up and then made not to depend on the
value of init.defaultBranch.
* js/t2106-cleanup:
t2106: ensure that the checkout fails for the expected reason
t2106: make test independent of the current main branch name
t2106: adjust style to the current conventions
9da69a6539 (fetch-pack: support more than one pack lockfile, 2020-06-10)
started to use a string_list for pack lockfile names instead of a single
string pointer. It removed a NULL check from transport_unlock_pack() as
well, which is the function that eventually deletes these lockfiles and
releases their name strings.
index_pack_lockfile() can return NULL if it doesn't like the contents it
reads from the file descriptor passed to it. unlink(2) is declared to
not accept NULL pointers (at least with glibc). Undefined Behavior
Sanitizer together with Address Sanitizer detects a case where a NULL
lockfile name is passed to unlink(2) by transport_unlock_pack() in t1060
(make SANITIZE=address,undefined; cd t; ./t1060-object-corruption.sh).
Reinstate the NULL check to avoid undefined behavior, but put it right
at the source, so that the number of items in the string_list reflects
the number of valid lockfiles.
Signed-off-by: René Scharfe <l.s.r@web.de>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since commit 9ba89f484e git learned how to push to a remote branch using
the source @, for example:
git push origin @:master
However, if the right-hand side is missing, the push fails:
git push origin @
It is obvious what is the desired behavior, and allowing the push makes
things more consistent.
Additionally, @:master now has the same semantics as HEAD:master.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
So that we are not left in an inconsistent state between them.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In a recent commit, we stopped calling `init_grep_defaults()` from this
function. Thus, by the end of the tutorial, we still haven't added any
contents to this function. Let's remove it for simplicity.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have a `struct grep_opt` with our defaults which we then copy into
the caller's struct. Rather than zeroing the target struct and copying
each element one by one, just copy everything at once. This leaves the
code simpler and more maintainable.
We don't have any ownership issues with what we're copying now and can
just greedily copy the whole thing. If and when we do need to handle
such elements (`char *`?), we must and can handle it appropriately. Make
sure to leave a comment to our future selves.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Simplify test and make error messages more clear here.
Per feedback from Junio in
33226af42b (t/perf/fsmonitor: improve error message if typoing hook
name, 2020-10-26)
Signed-off-by: Nipunn Koorapati <nipunn@dropbox.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "git maintenance run" and "git maintenance start/stop" commands
holds a file-based lock at the .git/maintenance.lock and
.git/schedule.lock respectively. These locks are used to ensure only
one maintenance process is executed at the time as both operations
involves writing data into the git repository.
The path to the lock file is built using
"the_repository->objects->odb->path" that results in SEGFAULT when we
have no repository available as "the_repository->objects->odb" is
set to NULL.
Let's teach maintenance command to use RUN_SETUP option that will
provide the validation and fail when running outside of a repository.
Hence fixing the SEGFAULT for all three operations and making the
behaviour consistent across all subcommands.
Setting the RUN_SETUP also provides the same protection for all
subcommands given that the "register" and "unregister" also requires to
be executed inside a repository.
Furthermore let's remove the local validation implemented by the
"register" and "unregister" as this will not be required anymore with
the new option.
Signed-off-by: Rafael Silva <rafaeloliveira.cs@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A lazily defined test prerequisite can now be defined in terms of
another lazily defined test prerequisite.
* sg/tests-prereq:
tests: fix description of 'test_set_prereq'
tests: make sure nested lazy prereqs work reliably
Since jgit does not yet work with SHA-256 repositories, mark the
tests that uses it not to run unless we are testing with ShA-1
repositories.
* sg/t5310-jgit-wants-sha1:
t5310-pack-bitmaps: skip JGit tests with SHA256
"git fetch" did not work correctly with nested submodules where the
innermost submodule that is not of interest got updated in the
upstream, which has been corrected.
* pk/subsub-fetch-fix:
submodules: fix of regression on fetching of non-init subsub-repo
The code was not prepared to deal with pack .idx file that is
larger than 4GB.
* jk/4gb-idx:
packfile: detect overflow in .idx file size checks
block-sha1: take a size_t length parameter
fsck: correctly compute checksums on idx files larger than 4GB
use size_t to store pack .idx byte offsets
compute pack .idx byte offsets using size_t
The exchange between receive-pack and proc-receive hook did not
carefully check for errors.
* jx/t5411-flake-fix:
receive-pack: use default version 0 for proc-receive
receive-pack: gently write messages to proc-receive
t5411: new helper filter_out_user_friendly_and_stable_output
"git bisect start/next" in a large span of history spends a lot of
time trying to come up with exactly the half-way point; this can be
optimized by stopping when we see a commit that is close enough to
the half-way point.
* sg/bisect-approximately-halfway:
bisect: loosen halfway() check for a large number of commits
The command line completion script (in contrib/) learned to expand
commands that are alias of alias.
* fc/bash-completion-alias-of-alias:
completion: bash: improve alias loop detection
completion: bash: check for alias loop
completion: bash: support recursive aliases
When a repository's leading directories contain regex metacharacters,
the config calls for 'git maintenance register' and 'git maintenance
unregister' are not careful enough. Use the new --fixed-value option
to direct the config machinery to use exact string matches. This is a
more robust option than escaping these arguments in a piecemeal fashion.
For the test, require that we are not running on Windows since the '+'
and '*' characters are not allowed on that filesystem.
Reported-by: Emily Shaffer <emilyshaffer@google.com>
Reported-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* ds/config-literal-value:
config doc: value-pattern is not necessarily a regexp
config: implement --fixed-value with --get*
config: plumb --fixed-value into config API
config: add --fixed-value option, un-implemented
t1300: add test for --replace-all with value-pattern
t1300: test "set all" mode with value-pattern
config: replace 'value_regex' with 'value_pattern'
config: convert multi_replace to flags
The introductory part of the "git config --help" mentions the
optional value-pattern argument, but give no hint that it can be
something other than a regular expression (worse, it just says
"POSIX regexp", which usually means BRE but the regexp the command
takes is ERE). Also, it needs to be documented that the '!' prefix
to negate the match, which is only mentioned in this part of the
document, works only with regexp and not with the --fixed-value.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
