Commit Graph

18088 Commits

Author SHA1 Message Date
Junio C Hamano
905549ff4e Merge branch 'jk/test-avoid-globmatch-with-skip-patterns'
We broke "GIT_SKIP_TESTS=t?000" to skip certain tests in recent
update, which got fixed.

* jk/test-avoid-globmatch-with-skip-patterns:
  test-lib: avoid accidental globbing in match_pattern_list()
2021-07-08 13:15:01 -07:00
Junio C Hamano
5be2a2c74b Merge branch 'ab/config-hooks-path-testfix'
Test fix.

* ab/config-hooks-path-testfix:
  pre-commit hook tests: don't leave "actual" nonexisting on failure
2021-07-08 13:15:01 -07:00
Junio C Hamano
102969c422 Merge branch 'jx/t6020-with-older-bash'
Work around inefficient glob substitution in older versions of bash
by rewriting parts of a test.

* jx/t6020-with-older-bash:
  t6020: fix incompatible parameter expansion
2021-07-08 13:14:59 -07:00
Junio C Hamano
a515f26eac Merge branch 'ar/typofix'
Typofixes.

* ar/typofix:
  *: fix typos which duplicate a word
2021-07-08 13:14:59 -07:00
Junio C Hamano
0800bedcc7 Merge branch 'dd/svn-test-wo-locale-a'
"git-svn" tests assumed that "locale -a", which is used to pick an
available UTF-8 locale, is available everywhere.  A knob has been
introduced to allow testers to specify a suitable locale to use.

* dd/svn-test-wo-locale-a:
  t: use user-specified utf-8 locale for testing svn
2021-07-08 13:14:58 -07:00
Jeff King
560bf51892 test-lib: avoid accidental globbing in match_pattern_list()
We have a custom match_pattern_list() function which we use for matching
test names (like "t1234") against glob-like patterns (like "t1???") for
$GIT_SKIP_TESTS, --verbose-only, etc.

Those patterns may have multiple whitespace-separated elements (e.g.,
"t0* t1234 t5?78"). The callers of match_pattern_list thus pass the
strings unquoted, so that the shell does the usual field-splitting into
separate arguments.

But this also means the shell will do the usual globbing for each
argument, which can result in us seeing an expansion based on what's in
the filesystem, rather than the real pattern. For example, if I have the
path "t5000" in the filesystem, and you feed the pattern "t?000", that
_should_ match the string "t0000", but it won't after the shell has
expanded it to "t5000".

This has been a bug ever since that function was introduced. But it
didn't usually trigger since we typically use the function inside the
trash directory, which has a very limited set of files that are unlikely
to match. It became a lot easier to trigger after edc23840b0 (test-lib:
bring $remove_trash out of retirement, 2021-05-10), because now we match
$GIT_SKIP_TESTS before even entering the trash directory. So the t5000
example above can be seen with:

  GIT_SKIP_TESTS=t?000 ./t0000-basic.sh

which should skip all tests but doesn't.

We can fix this by using "set -f" to ask the shell not to glob (which is
in POSIX, so should hopefully be portable enough). We only want to do
this in a subshell (to avoid polluting the rest of the script), which
means we need to get the whole string intact into the match_pattern_list
function by quoting it. Arguably this is a good idea anyway, since it
makes it much more obvious that we intend to split, and it's not simply
sloppy scripting.

Diagnosed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-01 12:29:32 -07:00
Jiang Xin
eb87c6f559 t6020: fix incompatible parameter expansion
Ævar reported that the function `make_user_friendly_and_stable_output()`
failed on a i386 box (gcc45) in the gcc farm boxes with error:

    sed: couldn't re-allocate memory

It turns out that older versions of bash (4.3) or dash (0.5.7) cannot
evaluate expression like `${A%${A#???????}}` used to get the leading 7
characters of variable A.

Replace the incompatible parameter expansion so that t6020 works on
older version of bash or dash.

Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-17 14:09:43 +09:00
Ævar Arnfjörð Bjarmason
aac578492d pre-commit hook tests: don't leave "actual" nonexisting on failure
Start by creating an "actual" file in a core.hooksPath test that has
the hook echoing to the "actual" file.

We later test_cmp that file to see what hooks were run. If we fail to
run our hook(s) we'll have an empty list of hooks for the test_cmp
instead of a nonexisting file. For the logic of this test that makes more sense.

See 867ad08a26 (hooks: allow customizing where the hook directory is,
2016-05-04) for the commit that added these tests.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-16 10:24:39 +09:00
Junio C Hamano
2019256717 Merge branch 'ab/test-lib-updates'
Test clean-up.

* ab/test-lib-updates:
  test-lib: split up and deprecate test_create_repo()
  test-lib: do not show advice about init.defaultBranch under --verbose
  test-lib: reformat argument list in test_create_repo()
  submodule tests: use symbolic-ref --short to discover branch name
  test-lib functions: add --printf option to test_commit
  describe tests: convert setup to use test_commit
  test-lib functions: add an --annotated option to "test_commit"
  test-lib-functions: document test_commit --no-tag
  test-lib-functions: reword "test_commit --append" docs
  test-lib tests: remove dead GIT_TEST_FRAMEWORK_SELFTEST variable
  test-lib: bring $remove_trash out of retirement
2021-06-14 13:33:29 +09:00
Junio C Hamano
c189dba20e Merge branch 'dd/honor-users-tar-in-tests'
Test portability fix.

* dd/honor-users-tar-in-tests:
  t: use configured TAR instead of tar
2021-06-14 13:33:28 +09:00
Junio C Hamano
8e444e66df Merge branch 'so/log-m-implies-p'
The "-m" option in "git log -m" that does not specify which format,
if any, of diff is desired did not have any visible effect; it now
implies some form of diff (by default "--patch") is produced.

* so/log-m-implies-p:
  diff-merges: let "-m" imply "-p"
  diff-merges: rename "combined_imply_patch" to "merges_imply_patch"
  stash list: stop passing "-m" to "git log"
  git-svn: stop passing "-m" to "git rev-list"
  diff-merges: move specific diff-index "-m" handling to diff-index
  t4013: test "git diff-index -m"
  t4013: test "git diff-tree -m"
  t4013: test "git log -m --stat"
  t4013: test "git log -m --raw"
  t4013: test that "-m" alone has no effect in "git log"
2021-06-14 13:33:27 +09:00
Junio C Hamano
169914ede2 Merge branch 'en/ort-perf-batch-11'
Optimize out repeated rename detection in a sequence of mergy
operations.

* en/ort-perf-batch-11:
  merge-ort, diffcore-rename: employ cached renames when possible
  merge-ort: handle interactions of caching and rename/rename(1to1) cases
  merge-ort: add helper functions for using cached renames
  merge-ort: preserve cached renames for the appropriate side
  merge-ort: avoid accidental API mis-use
  merge-ort: add code to check for whether cached renames can be reused
  merge-ort: populate caches of rename detection results
  merge-ort: add data structures for in-memory caching of rename detection
  t6429: testcases for remembering renames
  fast-rebase: write conflict state to working tree, index, and HEAD
  fast-rebase: change assert() to BUG()
  Documentation/technical: describe remembering renames optimization
  t6423: rename file within directory that other side renamed
2021-06-14 13:33:27 +09:00
Junio C Hamano
f4f7304b44 Merge branch 'jk/clone-clean-upon-transport-error'
Recent "git clone" left a temporary directory behind when the
transport layer returned an failure.

* jk/clone-clean-upon-transport-error:
  clone: clean up directory after transport_fetch_refs() failure
2021-06-14 13:33:26 +09:00
Junio C Hamano
135997254a Merge branch 'ga/send-email-sendmail-cmd'
"git send-email" learned the "--sendmail-cmd" command line option
and the "sendemail.sendmailCmd" configuration variable, which is a
more sensible approach than the current way of repurposing the
"smtp-server" that is meant to name the server to instead name the
command to talk to the server.

* ga/send-email-sendmail-cmd:
  git-send-email: add option to specify sendmail command
2021-06-14 13:33:26 +09:00
Andrei Rybak
abcb66c614 *: fix typos which duplicate a word
Fix typos in documentation, code comments, and RelNotes which repeat
various words.  In trivial cases, just delete the duplicated word and
rewrap text, if needed.  Reword the affected sentence in
Documentation/RelNotes/1.8.4.txt for it to make sense.

Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-14 10:16:06 +09:00
Đoàn Trần Công Danh
482c962de4 t: use user-specified utf-8 locale for testing svn
In some test-cases, UTF-8 locale is required. To find such locale,
we're using the first available UTF-8 locale that returned by
"locale -a".

However, the locale(1) utility is unavailable on some systems,
e.g. Linux with musl libc.

However, without "locale -a", we can't guess provided UTF-8 locale.

Add a Makefile knob GIT_TEST_UTF8_LOCALE and activate it for
linux-musl in our CI system.

Rename t/lib-git-svn.sh:prepare_a_utf8_locale to prepare_utf8_locale,
since we no longer prepare the variable named "a_utf8_locale",
but set up a fallback value for GIT_TEST_UTF8_LOCALE instead.
The fallback will be LC_ALL, LANG environment variable,
or the first UTF-8 locale from output of "locale -a", in that order.

Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-08 16:07:37 +09:00
Junio C Hamano
0d3505e286 Merge branch 'rs/parallel-checkout-test-fix'
Test fix.

* rs/parallel-checkout-test-fix:
  parallel-checkout: avoid dash local bug in tests
2021-06-06 15:39:10 +09:00
René Scharfe
ebee5580ca parallel-checkout: avoid dash local bug in tests
Dash bug https://bugs.launchpad.net/ubuntu/+source/dash/+bug/139097
lets the shell erroneously perform field splitting on the expansion of a
command substitution during declaration of a local variable.  It causes
the parallel-checkout tests to fail e.g. when running them with
/bin/dash on MacOS 11.4, where they error out like this:

   ./t2080-parallel-checkout-basics.sh: 33: local: 0: bad variable name

That's because the output of wc -l contains leading spaces and the
returned number of lines is treated as another variable to declare, i.e.
as in "local workers= 0".

Work around it by enclosing the command substitution in quotes.

Helped-by: Matheus Tavares Bernardino <matheus.bernardino@usp.br>
Helped-by: SZEDER Gábor <szeder.dev@gmail.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-06 10:40:26 +09:00
Junio C Hamano
2f0ca41349 Merge branch 'mt/t2080-cp-symlink-fix'
Test portability fix.

* mt/t2080-cp-symlink-fix:
  t2080: fix cp invocation to copy symlinks instead of following them
2021-05-27 12:36:57 +09:00
Junio C Hamano
f4d715b0ac Merge branch 'ab/send-email-inline-hooks-path'
Code simplification.

* ab/send-email-inline-hooks-path:
  send-email: move "hooks_path" invocation to git-send-email.perl
  send-email: don't needlessly abs_path() the core.hooksPath
2021-05-27 12:36:57 +09:00
Junio C Hamano
1accb34ce0 Merge branch 'ds/t1092-fix-flake-from-progress'
Workaround flaky tests introduced recently.

* ds/t1092-fix-flake-from-progress:
  t1092: revert the "-1" hack for emulating "no progress meter"
  t1092: use GIT_PROGRESS_DELAY for consistent results
2021-05-27 12:36:57 +09:00
Matheus Tavares
ea08db7473 t2080: fix cp invocation to copy symlinks instead of following them
t2080 makes a few copies of a test repository and later performs a
branch switch on each one of the copies to verify that parallel checkout
and sequential checkout produce the same results. However, the
repository is copied with `cp -R` which, on some systems, defaults to
following symlinks on the directory hierarchy and copying their target
files instead of copying the symlinks themselves. AIX is one example of
system where this happens. Because the symlinks are not preserved, the
copied repositories have paths that do not match what is in the index,
causing git to abort the checkout operation that we want to test. This
makes the test fail on these systems.

Fix this by copying the repository with the POSIX flag '-P', which
forces cp to copy the symlinks instead of following them. Note that we
already use this flag for other cp invocations in our test suite (see
t7001). With this change, t2080 now passes on AIX.

Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-27 09:04:49 +09:00
Ævar Arnfjörð Bjarmason
2815326f09 send-email: don't needlessly abs_path() the core.hooksPath
In c8243933c7 (git-send-email: Respect core.hooksPath setting,
2021-03-23) we started supporting core.hooksPath in "send-email". It's
been reported that on Windows[1] doing this by calling abs_path()
results in different canonicalizations of the absolute path.

This wasn't an issue in c8243933c7 itself, but was revealed by my
ea7811b37e (git-send-email: improve --validate error output,
2021-04-06) when we started emitting the path to the hook, which was
previously only internal to git-send-email.perl.

The just-landed 53753a37d0 (t9001-send-email.sh: fix expected
absolute paths on Windows, 2021-05-24) narrowly fixed this issue, but
I believe we can do better here. We should not be relying on whatever
changes Perl's abs_path() makes to the path "rev-parse --git-path
hooks" hands to us. Let's instead trust it, and hand it to Perl's
system() in git-send-email.perl. It will handle either a relative or
absolute path.

So let's revert most of 53753a37d0 and just have "hooks_path" return
what we get from "rev-parse" directly without modification. This has
the added benefit of making the error message friendlier in the common
case, we'll no longer print an absolute path for repository-local hook
errors.

1. http://lore.kernel.org/git/bb30fe2b-cd75-4782-24a6-08bb002a0367@kdbg.org

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-27 09:00:57 +09:00
Junio C Hamano
a96355d84c t1092: revert the "-1" hack for emulating "no progress meter"
This looked like a good idea, but it seems to break tests on 32-bit
builds rather badly.  Revert to just use "100 thousands must be big
enough" for now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-26 06:23:58 +09:00
Junio C Hamano
5d5b147345 Merge branch 'mt/init-template-userpath-fix'
Regression fix.

* mt/init-template-userpath-fix:
  init: fix bug regarding ~/ expansion in init.templateDir
2021-05-25 16:21:20 +09:00
Junio C Hamano
d9929cbb08 Merge branch 'jt/send-email-validate-errors-fix'
Fix a test breakage.

* jt/send-email-validate-errors-fix:
  t9001-send-email.sh: fix expected absolute paths on Windows
2021-05-25 16:21:19 +09:00
Junio C Hamano
53cb2103ce Merge branch 'ab/send-email-validate-errors-fix'
* ab/send-email-validate-errors-fix:
  send-email: fix missing error message regression
2021-05-25 16:21:19 +09:00
Derrick Stolee
e2b05746e1 t1092: use GIT_PROGRESS_DELAY for consistent results
The t1092-sparse-checkout-compatibility.sh tests compare the stdout and
stderr for several Git commands across both full checkouts, sparse
checkouts with a full index, and sparse checkouts with a sparse index.
Since these are direct comparisons, sometimes a progress indicator can
flush at unpredictable points, especially on slower machines. This
causes the tests to be flaky.

One standard way to avoid this is to add GIT_PROGRESS_DELAY=0 to the Git
commands that are run, as this will force every progress indicator
created with start_progress_delay() to be created immediately. However,
there are some progress indicators that are created in the case of a
full index that are not created with a sparse index. Moreover, their
values may be different as those indexes have a different number of
entries.

Instead, use GIT_PROGRESS_DELAY=-1 (which will turn into UINT_MAX)
to ensure that any reasonable machine running these tests would
never display delayed progress indicators.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-25 15:30:33 +09:00
Matheus Tavares
a185dd58ec init: fix bug regarding ~/ expansion in init.templateDir
We used to read the init.templateDir setting at builtin/init-db.c using
a git_config() callback that, in turn, called git_config_pathname(). To
simplify the config reading logic at this file and plug a memory leak,
this was replaced by a direct call to git_config_get_value() at
e4de4502e6 ("init: remove git_init_db_config() while fixing leaks",
2021-03-14). However, this function doesn't provide path expanding
semantics, like git_config_pathname() does, so paths with '~/' and
'~user/' are treated literally. This makes 'git init' fail to handle
init.templateDir paths using these constructs:

	$ git config init.templateDir '~/templates_dir'
	$ git init
	'warning: templates not found in ~/templates_dir'

Replace the git_config_get_value() call by git_config_get_pathname(),
which does the '~/' and '~user/' expansions. Also add a regression test.
Note that unlike git_config_get_value(), the config cache does not own
the memory for the path returned by git_config_get_pathname(), so we
must free() it.

Reported on IRC by rkta.

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-25 13:22:08 +09:00
Ævar Arnfjörð Bjarmason
5b719b7552 send-email: fix missing error message regression
Fix a regression with the "the editor exited uncleanly, aborting
everything" error message going missing after my
d21616c039 (git-send-email: refactor duplicate $? checks into a
function, 2021-04-06).

I introduced a $msg variable, but did not actually use it. This caused
us to miss the optional error message supplied by the "do_edit"
codepath. Fix that, and add tests to check that this works.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-25 09:52:42 +09:00
Johannes Sixt
53753a37d0 t9001-send-email.sh: fix expected absolute paths on Windows
Git for Windows is a native Windows program that works with native
absolute paths in the drive letter style C:\dir. The auxiliary
infrastructure is based on MSYS2, which uses POSIX style /C/dir.

When we test for output of absolute paths produced by git.exe, we
usally have to expect C:\dir style paths. To produce such expected
paths, we have to use $(pwd) in the test scripts; the alternative,
$PWD, produces a POSIX style path. ($PWD is a shell variable, and the
shell is bash, an MSYS2 program, and operates in the POSIX realm.)

There are two recently added tests that were written to expect C:\dir
paths. The output that is tested is produced by `git send-email`, but
behind the scenes, this is a Perl script, which also works in the
POSIX realm and produces /C/dir style output.

In the first test case that is changed here, replace $(pwd) by $PWD
so that the expected path is constructed using /C/dir style.

The second test case sets core.hooksPath to an absolute path. Since
the test script talks to native git.exe, it is supposed to place a
C:/dir style path into the configuration; therefore, keep $(pwd).
When this configuration value is consumed by the Perl script, it is
transformed to /C/dir style by the MSYS2 layer and echoed back in
this form in the error message. Hence, do use $PWD for the expected
value.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-25 09:45:17 +09:00
Junio C Hamano
378c7c6ad4 Merge branch 'dl/stash-show-untracked-fixup'
Another brown paper bag inconsistency fix for a new feature
introduced during this cycle.

* dl/stash-show-untracked-fixup:
  stash show: use stash.showIncludeUntracked even when diff options given
2021-05-22 18:29:01 +09:00
Junio C Hamano
99fe1c6069 Merge branch 'wm/rev-parse-path-format-wo-arg'
The "rev-parse" command did not diagnose the lack of argument to
"--path-format" option, which was introduced in v2.31 era, which
has been corrected.

* wm/rev-parse-path-format-wo-arg:
  rev-parse: fix segfault with missing --path-format argument
2021-05-22 18:29:00 +09:00
Đoàn Trần Công Danh
5317dfeaed t: use configured TAR instead of tar
Despite that tar is available everywhere, it's not required by POSIX.

In our build system, users are allowed to specify which tar to be used
in Makefile knobs. Furthermore, GNU tar (gtar) is prefered when autotools
is being used.

In our testsuite, 7 out of 9 tar-required-tests use "$TAR", the other
two use "tar".

Let's change the remaining two tests to "$TAR".

Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-22 18:01:57 +09:00
Denton Liu
af5cd44b6f stash show: use stash.showIncludeUntracked even when diff options given
If options pertaining to how the diff is displayed is provided to
`git stash show`, the command will ignore the stash.showIncludeUntracked
configuration variable, defaulting to not showing any untracked files.
This is unintuitive behaviour since the format of the diff output and
whether or not to display untracked files are orthogonal.

Use stash.showIncludeUntracked even when diff options are given. Of
course, this is still overridable via the command-line options.

Update the documentation to explicitly say which configuration variables
will be overridden when a diff options are given.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-22 17:56:46 +09:00
Sergey Organov
f5bfcc823b diff-merges: let "-m" imply "-p"
Fix long standing inconsistency between -c/--cc that do imply -p on
one side, and -m that did not imply -p on the other side.

Change corresponding test accordingly, as "log -m" output should now
match one from "log -m -p", rather than from just "log".

Change documentation accordingly.

NOTES:

After this patch

  git log -m

produces diffs without need to provide -p as well, that improves both
consistency and usability. It gets even more useful if one sets
"log.diffMerges" configuration variable to "first-parent" to force -m
produce usual diff with respect to first parent only.

This patch, however, does not change behavior when specific diff
format is explicitly provided on the command-line, so that commands
like

  git log -m --raw
  git log -m --stat

are not affected, nor does it change commands where specific diff
format is active by default, such as:

  git diff-tree -m

It's also worth to be noticed that exact historical semantics of -m is
still provided by --diff-merges=separate.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:14 +09:00
Sergey Organov
1e20a407fe stash list: stop passing "-m" to "git log"
Passing "-m" in "git log --first-parent -m" is not needed as
--first-parent implies --diff-merges=first-parent anyway. OTOH, it
will stop being harmless once we let "-m" imply "-p".

While we are at it, fix corresponding test description in t3903-stash
to match what it actually tests.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:14 +09:00
Sergey Organov
e0b16421b1 t4013: test "git diff-index -m"
-m in "git diff-index" means "match missing", that differs
from its meaning in "git diff". Let's check it in diff-index.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:14 +09:00
Sergey Organov
3ae7fe2b0f t4013: test "git diff-tree -m"
We want to ensure we don't affect plumbing commands with our changes
of "-m" semantics, so add corresponding test.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:13 +09:00
Sergey Organov
faf16d4e97 t4013: test "git log -m --stat"
This is to ensure we won't break different diff formats when we start
to imply "-p" by "-m".

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:13 +09:00
Sergey Organov
48229c193d t4013: test "git log -m --raw"
This is to ensure we won't break different diff formats when we start
to imply "-p" by "-m".

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:13 +09:00
Sergey Organov
7a55fa0e0b t4013: test that "-m" alone has no effect in "git log"
This is to notice current behavior that we are going to change when we
start to imply "-p" by "-m".

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-21 09:24:13 +09:00
Junio C Hamano
2b8b1aa6ad Merge branch 'tz/c-locale-output-is-no-more'
Test update.

* tz/c-locale-output-is-no-more:
  t7500: remove non-existant C_LOCALE_OUTPUT prereq
2021-05-21 05:50:32 +09:00
Junio C Hamano
c69f2f8c86 Merge branch 'cs/http-use-basic-after-failed-negotiate'
Regression fix for a change made during this cycle.

* cs/http-use-basic-after-failed-negotiate:
  Revert "remote-curl: fall back to basic auth if Negotiate fails"
  t5551: test http interaction with credential helpers
2021-05-21 05:49:41 +09:00
Elijah Newren
25e65b6dd5 merge-ort, diffcore-rename: employ cached renames when possible
When there are many renames between the old base of a series of commits
and the new base, the way sequencer.c, merge-recursive.c, and
diffcore-rename.c have traditionally split the work resulted in
redetecting the same renames with each and every commit being
transplanted.  To address this, the last several commits have been
creating a cache of rename detection results, determining when it was
safe to use such a cache in subsequent merge operations, adding helper
functions, and so on.  See the previous half dozen commit messages for
additional discussion of this optimization, particularly the message a
few commits ago entitled "add code to check for whether cached renames
can be reused".  This commit finally ties all of that work together,
modifying the merge algorithm to make use of these cached renames.

For the testcases mentioned in commit 557ac0350d ("merge-ort: begin
performance work; instrument with trace2_region_* calls", 2020-10-28),
this change improves the performance as follows:

                            Before                  After
    no-renames:        5.665 s ±  0.129 s     5.622 s ±  0.059 s
    mega-renames:     11.435 s ±  0.158 s    10.127 s ±  0.073 s
    just-one-mega:   494.2  ms ±  6.1  ms   500.3  ms ±  3.8  ms

That's a fairly small improvement, but mostly because the previous
optimizations were so effective for these particular testcases; this
optimization only kicks in when the others don't.  If we undid the
basename-guided rename detection and skip-irrelevant-renames
optimizations, then we'd see that this series by itself improved
performance as follows:

                   Before Basename Series   After Just This Series
    no-renames:      13.815 s ±  0.062 s      5.697 s ±  0.080 s
    mega-renames:  1799.937 s ±  0.493 s    205.709 s ±  0.457 s

Since this optimization kicks in to help accelerate cases where the
previous optimizations do not apply, this last comparison shows that
this cached-renames optimization has the potential to help signficantly
in cases that don't meet the requirements for the other optimizations to
be effective.

The changes made in this optimization also lay some important groundwork
for a future optimization around having collect_merge_info() avoid
recursing into subtrees in more cases.

However, for this optimization to be effective, merge_switch_to_result()
should only be called when the rebase or cherry-pick operation has
either completed or hit a case where the user needs to resolve a
conflict or edit the result.  If it is called after every commit, as
sequencer.c does, then the working tree and index are needlessly updated
with every commit and the cached metadata is tossed, defeating this
optimization.  Refactoring sequencer.c to only call
merge_switch_to_result() at the end of the operation is a bigger
undertaking, and the practical benefits of this optimization will not be
realized until that work is performed.  Since `test-tool fast-rebase`
only updates at the end of the operation, it was used to obtain the
timings above.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-20 15:40:39 +09:00
Elijah Newren
a22099f552 t6429: testcases for remembering renames
We will soon be adding an optimization that caches (in memory only,
never written to disk) upstream renames during a sequence of merges such
as occurs during a cherry-pick or rebase operation.  Add several tests
meant to stress such an implementation to ensure it does the right
thing, and include a test whose outcome we will later change due to this
optimization as well.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-20 15:40:39 +09:00
Elijah Newren
f9500261e0 fast-rebase: write conflict state to working tree, index, and HEAD
Previously, when fast-rebase hit a conflict, it simply aborted and left
HEAD, the index, and the working tree where they were before the
operation started.  While fast-rebase does not support restarting from a
conflicted state, write the conflicted state out anyway as it gives us a
way to see what the conflicts are and write tests that check for them.

This will be important in the upcoming commits, because sequencer.c is
only superficially integrated with merge-ort.c; in particular, it calls
merge_switch_to_result() after EACH merge instead of only calling it at
the end of all the sequence of merges (or when a conflict is hit).  This
not only causes needless updates to the working copy and index, but also
causes all intermediate data to be freed and tossed, preventing caching
information from one merge to the next.  However, integrating
sequencer.c more deeply with merge-ort.c is a big task, and making this
small extension to fast-rebase.c provides us with a simple way to test
the edge and corner cases that we want to make sure continue working.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-20 15:40:39 +09:00
Elijah Newren
caba91c373 fast-rebase: change assert() to BUG()
assert() can succinctly document expectations for the code, and do so in
a way that may be useful to future folks trying to refactor the code and
change basic assumptions; it allows them to more quickly find some
places where their violations of previous assumptions trips things up.

Unfortunately, assert() can surround a function call with important
side-effects, which is a huge mistake since some users will compile with
assertions disabled.  I've had to debug such mistakes before in other
codebases, so I should know better.  Luckily, this was only in test
code, but it's still very embarrassing.  Change an assert() to an if
(...) BUG (...).

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-20 15:40:39 +09:00
Junio C Hamano
cb227d5cd6 Merge branch 'jk/test-chainlint-softer'
The "chainlint" feature in the test framework is a handy way to
catch common mistakes in writing new tests, but tends to get
expensive.  An knob to selectively disable it has been introduced
to help running tests that the developer has not modified.

* jk/test-chainlint-softer:
  t: avoid sed-based chain-linting in some expensive cases
2021-05-20 08:55:00 +09:00
Junio C Hamano
36a255acd1 Merge branch 'zh/ref-filter-push-remote-fix'
The handling of "%(push)" formatting element of "for-each-ref" and
friends was broken when the same codepath started handling
"%(push:<what>)", which has been corrected.

* zh/ref-filter-push-remote-fix:
  ref-filter: fix read invalid union member bug
2021-05-20 08:55:00 +09:00