Change a couple of tests that weren't using the helper to use it. This
makes the trailing "--unset" unnecessary.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change an idiom we're using to ensure that gc_before_repack() only
does work once (see 62aad1849f ("gc --auto: do not lock refs in the
background", 2014-05-25)) to be more obvious.
Nothing except this function cares about the "pack_refs" and
"prune_reflogs" variables, so let's not leave the reader wondering if
they're being zero'd out for later use somewhere else.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There's been a lot of changing of the hardcoded "40" values to
the_hash_algo->hexsz, but we've so far missed this one where we
hardcoded 38 for the loose object file length.
This is because a SHA-1 like abcde[...] gets turned into
objects/ab/cde[...]. There's no reason to suppose the same won't be
the case for SHA-256, and reading between the lines in
hash-function-transition.txt the format is planned to be the same.
In the future we may want to further modify this code for the hash
function transition. There's a potential pathological case here where
we'll only consider the loose objects for the currently active hash,
but objects for that hash will share a directory storage with the
other hash.
Thus we could theoretically have e.g. 1k SHA-1 loose objects, and 1
million SHA-256 objects. Then not notice that we need to pack them
because we're currently using SHA-1, even though our FS may be
straining under the stress of such humongous directories.
So assuming that "gc" eventually learns to pack up both SHA-1 and
SHA-256 objects regardless of what the current the_hash_algo is,
perhaps this check should be changed to consider all files in
objects/17/ matching [0-9a-f] 38 or 62 characters in length (i.e. both
SHA-1 and SHA-256).
But none of that is something we need to worry about now, and
supporting both 38 and 62 characters depending on "the_hash_algo"
removes another case of SHA-1 hardcoding.
As noted in [1] I'm making no effort to somehow remove the hardcoding
for "2" as in "use the first two hexdigits for the directory
name". There's no indication that that'll ever change, and somehow
generalizing it here would be a drop in the ocean, so there's no point
in doing that. It also couldn't be done without coming up with some
generalized version of the magical "objects/17" directory. See [2] for
a discussion of that directory.
1. https://public-inbox.org/git/874l84ber7.fsf@evledraar.gmail.com/
2. https://public-inbox.org/git/87k1mta9x5.fsf@evledraar.gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since its inception, the perf-lib.sh script has manually handled the
"--tee" option (and other options which imply it, like "--valgrind")
with a cut-and-pasted block from test-lib.sh. That block has grown stale
over the years, and has at least three problems:
1. It uses $SHELL to re-exec the script, whereas the version in
test-lib.sh learned to use $TEST_SHELL_PATH.
2. It does an ad-hoc search of the "$*" string, whereas test-lib.sh
learned to carefully parse the arguments left to right.
3. It never learned about --verbose-log (which also implies --tee),
so it would not trigger for that option.
This last one was especially annoying, because t/perf/run uses the
GIT_TEST_OPTS from your config.mak to run the perf scripts. So if you've
set, say, "-x --verbose-log" there, it will be passed as part of most
perf runs. And while this script doesn't recognize the option, the
test-lib.sh that we source _does_, and the behavior ends up being much
more annoying:
- as the comment at the top of the block says, we have to run this
tee code early, before we start munging variables (it says
GIT_BUILD_DIR, but the problematic variable is actually
GIT_TEST_INSTALLED).
- since we don't recognize --verbose-log, we don't trigger the block.
We go on to munge GIT_TEST_INSTALLED, converting it from a relative
to an absolute path.
- then we source test-lib.sh, which _does_ recognize --verbose-log. It
re-execs the script, which runs again. But this time with an
absolute version of GIT_TEST_INSTALLED.
- As a result, we copy the absolute version of GIT_TEST_INSTALLED into
perf_results_prefix. Instead of writing our results to the expected
"test-results/build_1234abcd.p1234-whatever.times", we instead write
them to "test-results/_full_path_to_repo_t_perf_build_1234...".
The aggregate.perl script doesn't expect this, and so it prints
"<missing>" for each result (even though it spent considerable time
running the tests!).
We can solve all of these in one blow by just deleting our custom
handling, and relying on the inclusion of test-lib.sh to handle --tee,
--verbose-log, etc.
There's one catch, though. We want to handle GIT_TEST_INSTALLED after
we've included test-lib.sh, since we want it un-munged in the re-exec'd
version of the script. But if we want to convert it from a relative
to an absolute path, we must do so before we load test-lib.sh, since it
will change our working directory. So we compute the absolute directory
first, store it away, then include test-lib.sh, and finally assign to
GIT_TEST_INSTALLED as appropriate.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The pkt-line formatted lines contained the wrong pkt-len.
Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add a definition for what overlay means in the context of git, to
clarify the recently introduced overlay-mode in git checkout.
Helped-by: Elijah Newren <newren@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As far as this developer can tell, the conversion from a Perl script to
a built-in caused the regression in the difftool that it no longer runs
outside of a Git worktree (with `--no-index`, of course).
It is a bit embarrassing that it took over two years after retiring the
Perl version to discover this regression, but at least we now know, and
can do something, about it.
This fixes https://github.com/git-for-windows/git/issues/2123
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
`OPT_ARGUMENT()` is intended to keep the specified long option in `argv`
and not to do anything else.
However, it would make a lot of sense for the caller to know whether
this option was seen at all or not. For example, we want to teach `git
difftool` to work outside of any Git worktree, but only when
`--no-index` was specified.
Note: nothing in Git uses OPT_ARGUMENT(). Even worse, looking through
the commit history, one can easily see that nothing even
ever used it, apart from the regression test.
So not only do we make `OPT_ARGUMENT()` more useful, we are also about
to introduce its first real user!
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We will always spawn something from `git difftool`, so we will always
have to set `GIT_DIR` and `GIT_WORK_TREE`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Spell out --no-rerere-autoupdate explictly to make searching
easier. This matches the other --no options in the man page.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This option was missing from the man pages of these commands.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Checking gc_auto_threshold in too_many_loose_objects() was added in
17815501a8 ("git-gc --auto: run "repack -A -d -l" as necessary.",
2007-09-17) when need_to_gc() itself was also reliant on
gc_auto_pack_limit before its early return:
gc_auto_threshold <= 0 && gc_auto_pack_limit <= 0
When that check was simplified to just checking "gc_auto_threshold <=
0" in b14d255ba8 ("builtin-gc.c: allow disabling all auto-gc'ing by
assigning 0 to gc.auto", 2008-03-19) this unreachable code should have
been removed. We only call too_many_loose_objects() from within
need_to_gc() itself, which will return if this condition holds, and in
cmd_gc() which will return before ever getting to "auto_gc &&
too_many_loose_objects()" if "auto_gc && !need_to_gc()" is true
earlier in the function.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It is quite possible that the loose object cache gets stale when new
objects are written. In that case, get_oid() would potentially say that
it cannot find a given object, even if it should find it.
Let's blow away the loose object cache as well as the read packs and try
again in that case.
Note: this does *not* affect the code path that was introduced to help
avoid looking for the same non-existing objects (which made some
operations really expensive via NFS): that code path is handled by the
`OBJECT_INFO_QUICK` flag (which does not even apply to `get_oid()`,
which has no equivalent flag, at least at the time this patch was
written).
This incidentally fixes the problem identified earlier where an
interactive rebase wanted to re-read (and validate) the todo list after
an `exec` command modified it.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The interactive rebase simply complains about an "invalid line" when the
object hash of, say, a `pick` line could not be parsed.
Let's tell the user what happened in a little more detail.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We specifically support `exec` commands in `git rebase -i`'s todo lists
to rewrite the very same todo list. Of course, we need to validate that
todo list when re-reading it.
It is also totally legitimate to extend the todo list by `pick` lines
using short names of commits that were created only after the rebase
started.
And this is where the loose object cache interferes with this feature:
if *some* loose object was read whose hash shares the same first two
digits with a commit that was not yet created when that loose object was
created, then we fail to find that new commit by its short name in
`get_oid()`, and the interactive rebase fails with an obscure error
message like:
error: invalid line 1: pick 6568fef
error: please fix this using 'git rebase --edit-todo'.
Let's first demonstrate that this is actually a bug in a new regression
test, in a separate commit so that other developers who do not believe
me can cherry-pick it to confirm the problem.
This new regression test generates two commits whose hashes share the
first two hex digits (so that their corresponding loose objects live in
the same subdirectory of .git/objects/, and are therefore supposed to be
in the same loose object cache bin).
It then picks the first, to make sure that the loose object cache is
initialized and cached that object directory, then generates the second
commit and picks it, too. Since the commit was generated in a different
process than the sequencer that wants to pick it, the loose object cache
had no chance of being updated in the meantime.
Technically, we would need only one `exec` command in this regression
test case, but for ease of implementation, it uses a pseudo-recursive
call to the same script.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 't9811-git-p4-label-import.sh' the test 'tag that cannot be
exported' runs
!(p4 labels | grep GIT_TAG_ON_A_BRANCH)
to check that the given string is not printed by 'p4 labels'. This is
problematic, because according to POSIX [1]:
"If the pipeline begins with the reserved word ! and command1 is a
subshell command, the application shall ensure that the ( operator
at the beginning of command1 is separated from the ! by one or more
<blank> characters. The behavior of the reserved word ! immediately
followed by the ( operator is unspecified."
While most common shells still interpret this '!' as "negate the exit
code of the last command in the pipeline", 'mksh/lksh' don't and
interpret it as a negative file name pattern instead. As a result
they attempt to run a command made up of the pathnames in the current
directory (it contains a single directory called 'main'), which, of
course, fails the test.
We could fix it simply by adding a space between the '!' and '(', but
instead let's fix it by removing the unnecessary subshell.
[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_02
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
According to the comments in 't/lib-git-p4.sh', sometimes 'p4d' seems
to hang, and to deal with that 'start_p4d' starts a watchdog process
to kill it after a long-enough timeout ($P4D_TIMEOUT, defaults to
300s). This watchdog process is implemented as a background subshell
loop iterating once every second until the timeout expires, producing
a few lines of trace output on each iteration when the test script is
run with '-x' tracing enabled. The watchdog loop's trace gets
intermixed with the real test output and trace, and makes that harder
to read.
Send the trace output of this loop to /dev/null to avoid polluting the
real test output.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'lib-git-p4.sh' uses timeouts in a watchdog process to kill a
potentially stuck 'p4d' process and for certain cleanup operation
between tests. It does so by first computing when the timeout should
expire, and then repeatedly asking for the current time in seconds
until it exceeds the expiration time, and for portability reasons it
uses a one-liner Python script to ask for the current time.
Replace these timeouts with downcounters, which, though not
necessarily shorter, are much simpler, at least in the sense that they
don't execute the Python interpreter every second.
After this change the helper function with that Python one-liner has
no callers left, remove it.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Confusingly, the 'git p4' tests used two cleanup functions:
- 'kill_p4d' was run in the last test before 'test_done', and it not
only killed 'p4d', but it killed the watchdog process, and cleaned
up after 'p4d' as well by removing all directories used by the P4
daemon and client.
This cleanup is not necessary right before 'test_done', because
the whole trash directory is about to get removed anyway, but it
is necessary in 't9801-git-p4-branch.sh', which uses 'kill_p4d' to
stop 'p4d' before re-starting it in the middle of the test script.
- 'cleanup' was run in the trap on EXIT, and it killed 'p4d', but,
it didn't kill the watchdog process, and, contrarily to its name,
didn't perform any cleanup whatsoever.
Make it clearer what's going on by renaming and simplifying the
cleanup functions, so in the end we'll have:
- 'stop_p4d_and_watchdog' replaces 'cleanup' as it will try to live
up to its name and stop both the 'p4d' and the watchdog processes,
and as the sole function registered with 'test_atexit' it will be
responsible for no leaving any stray processes behind after 'git p4'
tests were finished or interrupted.
- 'stop_and_cleanup_p4d' replaces 'kill_p4d' as it will stop 'p4d'
(and the watchdog) and remove all directories used by the P4
daemon and cliean, so it can be used mid-script to stop and then
re-start 'p4d'.
Note that while 'cleanup' sent a single SIGKILL to 'p4d', 'kill_p4d'
was quite brutal, as it first sent SIGTERM to the daemon repeatedly,
either until its pid disappeared or until a given timeout was up, and
then it sent SIGKILL repeatedly, for good measure. This is overkill
(pardon the pun): a single SIGKILL should be able to take down any
process in a sensible state, and if a process were to somehow end up
stuck in the dreaded uninterruptible sleep state then even repeated
SIGKILLs won't bring immediate help. So ditch all the repeated
SIGTERM/SIGKILL parts, and use a single SIGKILL to stop 'p4d', and
make sure that there are no races between asynchron signal delivery
and subsequent restart of 'p4d' by waiting for it to die.
With this change the 'retry_until_fail' helper has no callers left,
remove it.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use 'test_atexit' to run cleanup commands to stop 'p4d' at the end of
the test script or upon interrupt or failure, as it is shorter,
simpler, and more robust than registering such cleanup commands in the
trap on EXIT in the test scripts.
Note that one of the test scripts, 't9801-git-p4-branch.sh', stops and
then re-starts 'p4d' twice in the middle of the script; take care that
the cleanup functions to stop 'p4d' are only registered once.
Note also that 'git p4' tests invoke different functions in the trap
on EXIT ('cleanup') and in the last test before 'test_done'
('kill_p4d'). Register both of these functions with 'test_atexit' for
now, and a a later patch in this series will then clean up the
redundancy.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use 'test_atexit' to run cleanup commands to stop the credentials
helper at the end of the test script or upon interrupt or failure, as
it is shorter, simpler, and more robust than registering such cleanup
commands in the trap on EXIT in the test scripts.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use 'test_atexit' to run cleanup commands to stop httpd at the end of
the test script or upon interrupt or failure, as it is shorter,
simpler, and more robust than registering such cleanup commands in the
trap on EXIT in the test scripts.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use 'test_atexit' to run cleanup commands to stop 'git-daemon' at the
end of the test script or upon interrupt or failure, as it is shorter,
simpler, and more robust than registering such cleanup commands in the
trap on EXIT in the test scripts.
Note that in 't5570-git-daemon.sh' the daemon is stopped and then
re-started in the middle of the test script; take care that the
cleanup functions to stop the daemon are only registered once.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When running Apache, 'git daemon', or p4d, we want to kill them at the
end of the test script, otherwise a leftover daemon process will keep
its port open indefinitely, and thus will interfere with subsequent
executions of the same test script.
So far, we stop these daemon processes "manually", i.e.:
- by registering functions or commands in the trap on EXIT to stop
the daemon while preserving the last seen exit code before the
trap (to deal with a failure when run with '--immediate' or with
interrupts by ctrl-C),
- and by invoking these functions/commands last thing before
'test_done' (and sometimes restoring the test framework's default
trap on EXIT, to prevent the daemons from being killed twice).
On one hand, we do this inconsistently, e.g. 'git p4' tests invoke
different functions in the trap on EXIT and in the last test before
'test_done', and they neither restore the test framework's default trap
on EXIT nor preserve the last seen exit code. On the other hand, this
is error prone, because, as shown in a previous patch in this series,
any output from the cleanup commands in the trap on EXIT can prevent a
proper cleanup when a test script run with '--verbose-log' and certain
shells, notably 'dash', is interrupted.
Let's introduce 'test_atexit', which is loosely modeled after
'test_when_finished', but has a broader scope: rather than running the
commands after the current test case, run them when the test script
finishes, and also run them when the test is interrupted, or exits
early in case of a failure while the '--immediate' option is in
effect.
When running the cleanup commands at the end of a successful test,
then they will be run in 'test_done' before it removes the trash
directory, i.e. the cleanup commands will still be able to access any
pidfiles or socket files in there. When running the cleanup commands
after an interrupt or failure with '--immediate', then they will be
run in the trap on EXIT. In both cases they will be run in
'test_eval_', i.e. both standard error and output of all cleanup
commands will go where they should according to the '-v' or
'--verbose-log' options, and thus won't cause any troubles when
interrupting a test script run with '--verbose-log'.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After 'start_git_daemon' starts 'git daemon' (note the space in the
middle) in the background, it saves the background process' PID, so
the daemon can be stopped at the end of the test script. However,
'git-daemon' is not a builtin but a dashed external command, which
means that the dashless 'git daemon' executes the dashed 'git-daemon'
command, and, consequently, the PID recorded is not the PID of the
"real" daemon process, but that of the main 'git' wrapper. Now, if a
test script involving 'git daemon' is interrupted by ctrl-C, then only
the main 'git' process is stopped, but the real daemon process tends
to survive somehow, and keeps on running in the background
indefinitely, keeping the daemon's port to itself, and thus preventing
subsequent runs of the same test script.
Work this around by running 'git daemon' with the '--pidfile=...'
option to save the PID of the real daemon process, and kill that
process in 'stop_git_daemon' as well.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a test script run with 'dash' and '--verbose-log -x' is
interrupted by ctrl-C, SIGTERM, or closing the terminal window, then
most of the time the registered EXIT trap actions are not executed.
This is an annoying issue with tests involving daemons, because they
should run cleanup commands to kill those daemon processes in the trap
on EXIT, but since these cleanup commands are not executed, the
daemons are left alive and keep their port open, thus interfering with
subsequent execution of the same test script.
The cause of this issue is the subtle combination of several factors
(bear with me, or skip over the indented part):
- Even when the test script is interrupted, the cleanup commands are
not run in the trap on INT, TERM, or HUP, but in the trap on EXIT
after the trap on the signals invokes 'exit' [1].
- According to POSIX [2]:
"The environment in which the shell executes a trap on EXIT
shall be identical to the environment immediately after the last
command executed before the trap on EXIT was taken."
Pertinent to the issue at hand is that all open file descriptors
and the state of '-x' tracing should be preserved. All shells
I've tried [3] preserve '-x'. Unfortunately, however:
- 'dash' doesn't conform to this when it comes to open file
descriptors: even when standard output and/or error are
redirected somewhere when 'exit' is invoked, anything written
to them in the trap on EXIT goes to the script's original
stdout and stderr [4].
We can't dismiss this with a simple "it doesn't conform to
POSIX, so we don't care", because 'dash' is the default
/bin/sh in some of the more popular Linux distros.
- As far as I can tell, POSIX doesn't explicitly say anything
about the environment of trap actions for various signals.
In practice it seems that most shells behave sensibly and
preserve both open file descriptors and the state of '-x'
tracing for the traps on INT, TERM, and HUP, including even
'dash'. The exceptions are 'mksh' and 'lksh': they do
preserve '-x', but not the open file descriptors.
- When a test script run with '-x' tracing enabled is interrupted,
then it's very likely that the signal arrives mid-test, i.e.:
- while '-x' tracing is enabled, and, consequently, our trap
actions on INT, TERM, HUP, and EXIT will produce trace output
as well.
- while standard output and error are redirected to a log file,
to the test script's original standard output and error, or to
/dev/null, depending on whether the test script was run with
'--verbose-log', '-v', or neither. According to the above, we
can't rely on these redirections still be in effect when
running the traps on INT, TERM, HUP, and/or EXIT.
- When a test script is run with '--verbose-log', then the test
script is re-executed with its standard output and error piped
into 'tee', in order to send the "regular" non-verbose test's
output both to the terminal and to the log file. When the test is
interrupted, then the signal interrupts the downstream 'tee' as
well.
Putting these together, when a test script run with 'dash' and
'--verbose-log -x' is interrupted, then 'dash' tries to write the
trace output from the EXIT trap to the script's original standard
error, but it very likely can't, because the 'tee' downstream of the
pipe is interrupted as well. This causes the shell running the test
script to die because of SIGPIPE, without running any of the commands
in the EXIT trap.
Disable '-x' tracing in the trap on INT, TERM, and HUP to avoid this
issue, as it disables tracing in the chained trap on EXIT as well.
Wrap it in a '{ ... } 2>/dev/null' block, so the trace of the command
disabling the tracing doesn't go to standard error either [5].
Note that it's not only '-x' tracing that can be problematic, but any
shell builtin, e.g. 'echo', that writes to standard output or error in
the trap on EXIT, while a test running with 'dash' and '--verbose-log'
(even without '-x') is interrupted. As far as I can tell, this is not
an issue at the moment:
- The cleanup commands to stop the credential-helper, Apache, or
'p4d' don't use any such shell builtins.
- stop_git_daemon() does use 'say' and 'error', both wrappers around
'echo', but it redirects 'say' to fd 3, i.e. to the log file, and
while 'error' does write to standard output, it comes only after
the daemon was killed.
- The non-builtin commands that actually stop the daemons ('kill',
'apache2 -k stop', 'git credential-cache exit') are silent, so they
won't get SIGPIPE before finishing their job.
[1] The trap on EXIT must run cleanup commands, because we want to
stop any daemons when a test script run with '--immediate' fails
and exits early with error. By chaining up the trap on signals to
the trap on EXIT we can deal with cleanup commands a bit simpler,
because the tests involving daemons only have to set a single
trap.
[2] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#trap
[3] The shells I tried: dash, Bash, ksh, ksh93, mksh, lksh, yash,
BusyBox sh, FreeBSD /bin/sh, NetBSD /bin/sh.
[4] $ cat trap-output.sh
#!/bin/sh
trap "echo output; echo error >&2" EXIT
{ exit; } >OUT 2>ERR
$ dash ./trap-output.sh
output
error
$ wc -c OUT ERR
0 OUT
0 ERR
On a related note, 'ksh', 'ksh93', and BusyBox sh don't conform to
the specs in this respect, either.
[5] This '{ set +x; } 2>/dev/null' trick won't help those shells that
show trace output for any redirections and don't preserve open
file descriptors for the trap on INT, TERM and HUP. The only such
shells I'm aware of are 'mksh' and 'lksh'.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When cloning with --recurse-submodules a superproject with at least one
submodule with HEAD pointing to an unborn branch, the clone goes
something like this:
Cloning into 'test'...
<messages about cloning of superproject>
Submodule '<name>' (<uri>) registered for path '<submodule path>'
Cloning into '<submodule path>'...
fatal: Couldn't find remote ref HEAD
Unable to fetch in submodule path '<submodule path>'
<messages about fetching with SHA-1>
From <uri>
* branch <hash> -> FETCH_HEAD
Submodule path '<submodule path>': checked out '<hash>'
In other words, first, a fetch is done with no hash arguments (that is,
a fetch of HEAD) resulting in a "Couldn't find remote ref HEAD" error;
then, a fetch is done given a hash, which succeeds.
The fetch given a hash was added in fb43e31f2b ("submodule: try harder
to fetch needed sha1 by direct fetching sha1", 2016-02-24), and the
"Unable to fetch..." message was downgraded from a fatal error to a
notice in e30d833671 ("git-submodule.sh: try harder to fetch a
submodule", 2018-05-16).
This commit improves the notice to be clearer that we are retrying the
fetch, and that the previous messages (in particular, the fatal errors
from fetch) do not necessarily indicate that the whole command fails. In
other words:
- If the HEAD-fetch succeeds and we then have the commit we want,
git-submodule prints no explanation.
- If the HEAD-fetch succeeds and we do not have the commit we want, but
the hash-fetch succeeds, git-submodule prints no explanation.
- If the HEAD-fetch succeeds and we do not have the commit we want, but
the hash-fetch fails, git-submodule prints a fatal error.
- If the HEAD-fetch fails, fetch prints a fatal error, and
git-submodule informs the user that it will retry by fetching
specific commits by hash.
- If the hash-fetch then succeeds, git-submodule prints no
explanation (besides the ones already printed).
- If the HEAD-fetch then fails, git-submodule prints a fatal error.
It could be said that we should just eliminate the HEAD-fetch
altogether, but that changes some behavior (in particular, some refs
that were opportunistically updated would no longer be), so I have left
that alone for now.
There is an analogous situation with the fetching code in fetch_finish()
and surrounding functions. For now, I have added a NEEDSWORK.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The sha1dc library uses unaligned loads on platforms that support them.
This is normally what you'd want for performance, but it does cause
UBSan to complain when we compile with SANITIZE=undefined. Just like we
set -DNO_UNALIGNED_LOADS for our own code in that case, we should set
-DSHA1DC_FORCE_ALIGNED_ACCESS.
Of course that does nothing without pulling in the patches from sha1dc
to respect that define. So let's do that, too, updating both the
submodule link and our in-tree copy (from the same commit).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Applying CodingGuidelines about monospace on pathnames and URLs.
See Documentation/CodingGuidelines.txt for more information.
Signed-off-by: Corentin BOMPARD <corentin.bompard@etu.univ-lyon1.fr>
Signed-off-by: Nathan BERBEZIER <nathan.berbezier@etu.univ-lyon1.fr>
Signed-off-by: Pablo CHABANNE <pablo.chabanne@etu.univ-lyon1.fr>
Signed-off-by: Matthieu MOY <matthieu.moy@univ-lyon1.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current documentation uses both quotes (italics) and backquotes
(monospace) to render URLs and pathnames, which is inconsistent.
Document a best practice in CodingGuidelines to help reduce
inconsistencies in the future.
We set the best practice to using backquotes, since:
* It is already an established practice. For exemple:
$ git grep "'[^']/*[^']'" | wc -l
206
$ git grep '`[^`]/*[^`]`' | wc -l
690
There are false positives on both sides, but after a cursory look at
the output of both, it doesn't seem the false positive rate is really
higher in the second case.
At least, this shows that the existing documentation uses
inconsistent formatting, and that it would be good to do
something about it.
* It may be debatable whether path names need to be typed in
monospace but having them in italics is really unusual.
Signed-off-by: Corentin BOMPARD <corentin.bompard@etu.univ-lyon1.fr>
Signed-off-by: Nathan BERBEZIER <nathan.berbezier@etu.univ-lyon1.fr>
Signed-off-by: Pablo CHABANNE <pablo.chabanne@etu.univ-lyon1.fr>
Signed-off-by: Matthieu MOY <matthieu.moy@univ-lyon1.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In commit 735285b403 ("am: fix signoff when other trailers are present",
2017-08-08) tests using variable $signoff were rewritten and it is no
longer used, so just remove it from the test setup.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the contributing guide and PR template seen by people who open pull
requests on GitHub, we mention the submitGit tool, which gives an
alternative to figuring out the mailing list. These days we also have
the similar GitGitGadget tool, and we should make it clear that this
is also an option.
We could continue to mention _both_ tools, but it's probably better to
pick one in order to avoid overwhelming the user with choice. After all,
one of the purposes here is to reduce friction for first-time or
infrequent contributors. And there are a few reasons to prefer GGG:
1. submitGit seems to still have a few rough edges. E.g., it doesn't
munge timestamps to help threaded mail readers handled out-of-order
delivery.
2. Subjectively, GGG seems to be more commonly used on the list these
days, especially by list regulars.
3. GGG seems to be under more active development (likely related to
point 2).
So let's actually swap out submitGit for GGG. While we're there, let's
put another link to the GGG page in the PR template, because that's
where users who are learning about it for the first time will want to go
to read more.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
While looking at the inline help for git-subtree.sh, I noticed that
git subtree split --prefix=<prefix> <commit...>
was given as an option. However, it only really makes sense to provide
one revision because of the way the commits are forwarded to rev-parse
so change "<commit...>" to "<commit>" to reflect this. In addition,
check the arguments to ensure that only one rev is provided for all
subcommands that accept a commit.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Acked-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a brown paper bag. When adding the tests, we actually failed
to verify that the config variable is heeded in git-init at all. And
when changing the original patch that marked the .git/ directory as
hidden after reading the config, it was lost on this developer that
the new code would use the hide_dotfiles variable before the config
was read.
The fix is obvious: read the (limited, pre-init) config *before*
creating the .git/ directory.
Please note that we cannot remove the identical-looking `git_config()`
call from `create_default_files()`: we create the `.git/` directory
between those calls. If we removed it, and if the parent directory is
in a Git worktree, and if that worktree's `.git/config` contained any
`init.templatedir` setting, we would all of a sudden pick that up.
This fixes https://github.com/git-for-windows/git/issues/789
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have something much better now: --rebase-merges (which is a
complete re-design --preserve-merges, with a lot of issues fixed such as
the inability to reorder commits with --preserve-merges).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git runs a stat loop to find a worktree name that's available and
then does mkdir on the found name. Turn it to mkdir loop to avoid
another invocation of worktree add finding the same free name and
creating the directory first.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Passing the pathspec by value is potentially confusing, as the copy is
only a shallow copy, so save the overhead of the copy, and pass the
pathspec struct as a pointer.
In addition use copy_pathspec to copy the pathspec into
rev.prune_data, so the copy is a proper deep copy, and owned by the
revision API, as that's what the API expects.
Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we render, e.g., "linkgit:gitglossary[7]." with Asciidoctor, we get
"gitglossary(7) ." with a space between the linkgit macro expansion and
the punctuation. We can fix this by dropping the trailing newline after
we've turned `linkgit:foo[bar]` into `<citerefentry>..</citerefentry>`.
The diff produced by `USE_ASCIIDOCTOR=Yes ./doc-diff HEAD^ HEAD` is
almost 6000 lines large and shows how this fixes "git-foo(x) ,", "(see
git-bar(y) )" and so on. One might wonder whether this also turns, e.g.,
"see linkgit:foo[1] for more" into "see foo(1)for more", but no. We get
"...</citerefentry> for more" in the XML, see, e.g., git-am.xml, so the
space ends up in git-am.1 just fine. The same is true for the HTML output.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
asciidoctor-extensions.rb has never changed, but when it does -- such as
in the next commit --, it helps if the xml-files depend on it. We're
casting the net a bit too wide here, since we'll be rebuilding even with
AsciiDoc, which won't look at this file. But since this file changes so
rarely, that should be ok. It's better than missing a dependency.
Similarly, most of the html-files are produced directly from ".txt';
make the html-files too depend on asciidoctor-extensions.rb, both
the HTMLified manual pages as well as the user-manual that does use
.xml intermediary.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If you use "log -L" with an output format like "--raw" or "--stat",
we'll silently ignore the format and just output the normal patch.
Let's detect and complain about this, which at least tells the user
what's going on.
The tests here aren't exhaustive over the set of all formats, but it
should at least let us know if somebody breaks the format-checking.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The Makefile uses 'find' utility to enumerate all the *.h header
files, which is expensive on platforms with slow filesystems; it
now optionally uses "ls-files" if working within a repository,
which is a trick similar to how all sources are enumerated to run
ETAGS on.
* js/find-lib-h-with-ls-files-when-possible:
Makefile: use `git ls-files` to list header files, if possible
