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3 years agoMerge branch 'jk/multi-line-indent-style-fix'
Junio C Hamano [Mon, 14 Dec 2020 18:21:38 +0000 (10:21 -0800)] 
Merge branch 'jk/multi-line-indent-style-fix'

Style fix.

* jk/multi-line-indent-style-fix:
  style: indent multiline "if" conditions to align

3 years agoMerge branch 'jk/check-config-parsing-error-in-upload-pack'
Junio C Hamano [Mon, 14 Dec 2020 18:21:37 +0000 (10:21 -0800)] 
Merge branch 'jk/check-config-parsing-error-in-upload-pack'

Tighten error checking in the codepath that responds to "git fetch".

* jk/check-config-parsing-error-in-upload-pack:
  upload-pack: propagate return value from object filter config callback

3 years agoMerge branch 'ae/doc-reproducible-html'
Junio C Hamano [Mon, 14 Dec 2020 18:21:37 +0000 (10:21 -0800)] 
Merge branch 'ae/doc-reproducible-html'

Newer versions of xsltproc can assign IDs in HTML documents it
generates in a consistent manner.  Use the feature to help format
HTML version of the user manual reproducibly.

* ae/doc-reproducible-html:
  doc: make HTML manual reproducible

3 years agoMerge branch 'so/glossary-branch-is-not-necessarily-active'
Junio C Hamano [Mon, 14 Dec 2020 18:21:36 +0000 (10:21 -0800)] 
Merge branch 'so/glossary-branch-is-not-necessarily-active'

The glossary described a branch as an "active" line of development,
which is misleading---a stale and non-moving branch is still a
branch.

* so/glossary-branch-is-not-necessarily-active:
  glossary: improve "branch" definition

3 years agoMerge branch 'fc/atmark-in-refspec'
Junio C Hamano [Mon, 14 Dec 2020 18:21:36 +0000 (10:21 -0800)] 
Merge branch 'fc/atmark-in-refspec'

"@" sometimes worked (e.g. "git push origin @:there") as a part of
a refspec element, but "git push origin @" did not work, which has
been corrected.

* fc/atmark-in-refspec:
  refspec: make @ a synonym of HEAD
  tests: push: trivial cleanup
  tests: push: improve cleanup of HEAD tests

3 years agoMerge branch 'dd/help-autocorrect-never'
Junio C Hamano [Mon, 14 Dec 2020 18:21:36 +0000 (10:21 -0800)] 
Merge branch 'dd/help-autocorrect-never'

"git $cmd $args", when $cmd is not a recognised subcommand, by
default tries to see if $cmd is a typo of an existing subcommand
and optionally executes the corrected command if there is only one
possibility, depending on the setting of help.autocorrect; the
users can now disable the whole thing, including the cycles spent
to find a likely typo, by setting the configuration variable to
'never'.

* dd/help-autocorrect-never:
  help.c: help.autocorrect=never means "do not compute suggestions"

3 years agoEleventh batch
Junio C Hamano [Tue, 8 Dec 2020 22:56:00 +0000 (14:56 -0800)] 
Eleventh batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'fc/zsh-completion'
Junio C Hamano [Tue, 8 Dec 2020 23:11:22 +0000 (15:11 -0800)] 
Merge branch 'fc/zsh-completion'

Hotfix for a recent breakage.

* fc/zsh-completion:
  completion: bash: fix gitk alias regression
  completion: zsh: fix file completion regression

3 years agoMerge branch 'sn/config-doc-typofix'
Junio C Hamano [Tue, 8 Dec 2020 23:11:22 +0000 (15:11 -0800)] 
Merge branch 'sn/config-doc-typofix'

Fix for an old typo.

* sn/config-doc-typofix:
  config.txt: fix a typo (backslash != backquote)

3 years agoMerge branch 'fc/random-cleanup'
Junio C Hamano [Tue, 8 Dec 2020 23:11:21 +0000 (15:11 -0800)] 
Merge branch 'fc/random-cleanup'

Random cleanup.

* fc/random-cleanup:
  gitignore: remove entry for git serve
  gitignore: drop duplicate entry for git-sh-i18n
  tests: lib-functions: trivial style cleanups
  test: completion: fix typos
  .gitignore: remove dangling file
  refspec: trivial cleanup

3 years agoMerge branch 'nm/imap-send-use-default-config'
Junio C Hamano [Tue, 8 Dec 2020 23:11:21 +0000 (15:11 -0800)] 
Merge branch 'nm/imap-send-use-default-config'

"git imap-send" used to ignore configuration variables like
core.askpass; this has been corrected.

* nm/imap-send-use-default-config:
  imap-send: parse default git config

3 years agoMerge branch 'jk/banned'
Junio C Hamano [Tue, 8 Dec 2020 23:11:21 +0000 (15:11 -0800)] 
Merge branch 'jk/banned'

Non-reentrant time-related library functions and ctime/asctime with
awkward calling interfaces are banned from the codebase.

* jk/banned:
  banned.h: mark ctime_r() and asctime_r() as banned
  banned.h: mark non-reentrant gmtime, etc as banned

3 years agoMerge branch 'tb/bugreport-no-localtime'
Junio C Hamano [Tue, 8 Dec 2020 23:11:21 +0000 (15:11 -0800)] 
Merge branch 'tb/bugreport-no-localtime'

Use of non-reentrant localtime() has been removed.

* tb/bugreport-no-localtime:
  builtin/bugreport.c: use thread-safe localtime_r()

3 years agoMerge branch 'rs/maintenance-run-outside-repo'
Junio C Hamano [Tue, 8 Dec 2020 23:11:20 +0000 (15:11 -0800)] 
Merge branch 'rs/maintenance-run-outside-repo'

"git maintenance run/start/stop" needed to be run in a repository
to hold the lockfile they use, but didn't make sure they are
actually in a repository, which has been corrected.

* rs/maintenance-run-outside-repo:
  t7900: fix typo: "test_execpt_success"
  maintenance: fix SEGFAULT when no repository

3 years agoMerge branch 'rs/fetch-pack-invalid-lockfile'
Junio C Hamano [Tue, 8 Dec 2020 23:11:20 +0000 (15:11 -0800)] 
Merge branch 'rs/fetch-pack-invalid-lockfile'

"fetch-pack" could pass NULL pointer to unlink(2) when it sees an
invalid filename; the error checking has been tightened to make
this impossible.

* rs/fetch-pack-invalid-lockfile:
  fetch-pack: disregard invalid pack lockfiles

3 years agoMerge branch 'nk/perf-fsmonitor-cleanup'
Junio C Hamano [Tue, 8 Dec 2020 23:11:20 +0000 (15:11 -0800)] 
Merge branch 'nk/perf-fsmonitor-cleanup'

Test clean-up.

* nk/perf-fsmonitor-cleanup:
  perf/fsmonitor: use test_must_be_empty helper

3 years agoMerge branch 'ma/grep-init-default'
Junio C Hamano [Tue, 8 Dec 2020 23:11:20 +0000 (15:11 -0800)] 
Merge branch 'ma/grep-init-default'

Code clean-up.

* ma/grep-init-default:
  MyFirstObjectWalk: drop `init_walken_defaults()`
  grep: copy struct in one fell swoop
  grep: use designated initializers for `grep_defaults`
  grep: don't set up a "default" repo for grep

3 years agoMerge branch 'js/trace2-session-id'
Junio C Hamano [Tue, 8 Dec 2020 23:11:20 +0000 (15:11 -0800)] 
Merge branch 'js/trace2-session-id'

The transport layer was taught to optionally exchange the session
ID assigned by the trace2 subsystem during fetch/push transactions.

* js/trace2-session-id:
  receive-pack: log received client session ID
  send-pack: advertise session ID in capabilities
  upload-pack, serve: log received client session ID
  fetch-pack: advertise session ID in capabilities
  transport: log received server session ID
  serve: advertise session ID in v2 capabilities
  receive-pack: advertise session ID in v0 capabilities
  upload-pack: advertise session ID in v0 capabilities
  trace2: add a public function for getting the SID
  docs: new transfer.advertiseSID option
  docs: new capability to advertise session IDs

3 years agoMerge branch 'mt/do-not-use-scld-in-working-tree'
Junio C Hamano [Tue, 8 Dec 2020 23:11:19 +0000 (15:11 -0800)] 
Merge branch 'mt/do-not-use-scld-in-working-tree'

"git apply" adjusted the permission bits of working-tree files and
directories according core.sharedRepository setting by mistake and
for a long time, which has been corrected.

* mt/do-not-use-scld-in-working-tree:
  apply: don't use core.sharedRepository to create working tree files

3 years agoMerge branch 'ds/maintenance-part-2'
Junio C Hamano [Tue, 8 Dec 2020 23:11:19 +0000 (15:11 -0800)] 
Merge branch 'ds/maintenance-part-2'

Test fix.

* ds/maintenance-part-2:
  t7900: speed up expensive test

3 years agoMerge branch 'ds/maintenance-part-1'
Junio C Hamano [Tue, 8 Dec 2020 23:11:19 +0000 (15:11 -0800)] 
Merge branch 'ds/maintenance-part-1'

Build consistency fix.

* ds/maintenance-part-1:
  Makefile: mark git-maintenance as a builtin

3 years agoMerge branch 'ds/maintenance-part-3'
Junio C Hamano [Tue, 8 Dec 2020 23:11:19 +0000 (15:11 -0800)] 
Merge branch 'ds/maintenance-part-3'

"git maintenance" command had trouble working in a directory whose
pathname contained an ERE metacharacter like '+'.

* ds/maintenance-part-3:
  maintenance: use 'git config --fixed-value'

3 years agoMerge branch 'ds/config-literal-value'
Junio C Hamano [Tue, 8 Dec 2020 23:11:19 +0000 (15:11 -0800)] 
Merge branch 'ds/config-literal-value'

Various subcommands of "git config" that takes value_regex
learn the "--literal-value" option to take the value_regex option
as a literal string.

* 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

3 years agoMerge branch 'tb/idx-midx-race-fix'
Junio C Hamano [Tue, 8 Dec 2020 23:11:18 +0000 (15:11 -0800)] 
Merge branch 'tb/idx-midx-race-fix'

Processes that access packdata while the .idx file gets removed
(e.g. while repacking) did not fail or fall back gracefully as they
could.

* tb/idx-midx-race-fix:
  midx.c: protect against disappearing packs
  packfile.c: protect against disappearing indexes

3 years agoMerge branch 'ps/update-ref-multi-transaction'
Junio C Hamano [Tue, 8 Dec 2020 23:11:17 +0000 (15:11 -0800)] 
Merge branch 'ps/update-ref-multi-transaction'

"git update-ref --stdin" learns to take multiple transactions in a
single session.

* ps/update-ref-multi-transaction:
  update-ref: disallow "start" for ongoing transactions
  p1400: use `git-update-ref --stdin` to test multiple transactions
  update-ref: allow creation of multiple transactions
  t1400: avoid touching refs on filesystem

3 years agoMerge branch 'js/add-i-color-fix'
Junio C Hamano [Tue, 8 Dec 2020 23:11:17 +0000 (15:11 -0800)] 
Merge branch 'js/add-i-color-fix'

"git add -i" failed to honor custom colors configured to show
patches, which has been corrected.

* js/add-i-color-fix:
  add -i: verify in the tests that colors can be overridden
  add -p: prefer color.diff.context over color.diff.plain
  add -i (Perl version): color header to match the C version
  add -i (built-in): use the same indentation as the Perl version
  add -p (built-in): do not color the progress indicator separately
  add -i (built-in): use correct names to load color.diff.* config
  add -i (built-in): prevent the `reset` "color" from being configured
  add -i: use `reset_color` consistently
  add -p (built-in): imitate `xdl_format_hunk_hdr()` generating hunk headers
  add -i (built-in): send error messages to stderr
  add -i (built-in): do show an error message for incorrect inputs

3 years agoMerge branch 'jt/trace-error-on-warning'
Junio C Hamano [Tue, 8 Dec 2020 23:11:17 +0000 (15:11 -0800)] 
Merge branch 'jt/trace-error-on-warning'

Like die() and error(), a call to warning() will also trigger a
trace2 event.

* jt/trace-error-on-warning:
  usage: add trace2 entry upon warning()

3 years agot7900: fix typo: "test_execpt_success"
Josh Steadmon [Tue, 8 Dec 2020 20:12:56 +0000 (12:12 -0800)] 
t7900: fix typo: "test_execpt_success"

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agocompletion: bash: fix gitk alias regression
Felipe Contreras [Sat, 5 Dec 2020 07:10:23 +0000 (01:10 -0600)] 
completion: bash: fix gitk alias regression

Long time ago when the _git_complete helper was introduced, _gitk was
replaced with __gitk_main, and a placeholder for backwards compatibility
pointing to __git_wrap_main_gitk was left in place.

When "__git_complete gitk __gitk_main" was called, that created the
__git_wrap__gitk_main helper, which is just basically "__git_func_wrap
__gitk_main" plus `complete` options.

Unfortunately the commit b0a4b2d257 (completion: add support for
backwards compatibility, 2012-05-19) missed a previous instance of a
call to _gitk in _git_gitk

So, basically we had __git_wrap__git_main -> __git_func_wrap __git_main ->
__git_complete_command gitk -> _git_gitk -> _gitk ->
__git_wrap__gitk_main -> __git_func_wrap __gitk_main -> __gitk_main.

There was never any need to call __git_func_wrap twice. Since _git_gitk
is always called inside the wrapper, it can call __gitk_main directly.

And then, in commit 441ecdab37 (completion: bash: remove old compat
wrappers, 2020-10-27) _gitk was removed, which triggers the following
error:

  _git_gitk:9: command not found: _gitk

Let's call the correct function: __gitk_main.

Cc: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agostyle: indent multiline "if" conditions to align
Jeff King [Thu, 3 Dec 2020 08:00:18 +0000 (03:00 -0500)] 
style: indent multiline "if" conditions to align

Commit 6dc905d974 (config: split repo scope to local and worktree,
2020-02-10) made some "if" statements multiline, but didn't indent the
second lines in our usual way.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoupload-pack: propagate return value from object filter config callback
Jeff King [Thu, 3 Dec 2020 08:09:42 +0000 (03:09 -0500)] 
upload-pack: propagate return value from object filter config callback

If we encounter an error in parse_filter_object_config(), we'll complain
to stderr but won't actually propagate the return value up the stack.
This is unlike most of our config callbacks, which return the error to
git_config() so it can die (this includes the call just below us to
parse_hide_refs_config(), which can also produce errors).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoTenth batch
Junio C Hamano [Thu, 3 Dec 2020 07:44:25 +0000 (23:44 -0800)] 
Tenth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'pk/subsub-fetch-fix'
Junio C Hamano [Thu, 3 Dec 2020 08:18:07 +0000 (00:18 -0800)] 
Merge branch 'pk/subsub-fetch-fix'

An earlier attempt to fix "git fetch --recurse-submodules" broke
another use case; revert it until a better fix is found.

* pk/subsub-fetch-fix:
  Revert "submodules: fix of regression on fetching of non-init subsub-repo"

3 years agoMerge branch 'jk/stop-pack-objects-when-fetch-is-killed'
Junio C Hamano [Thu, 3 Dec 2020 08:18:07 +0000 (00:18 -0800)] 
Merge branch 'jk/stop-pack-objects-when-fetch-is-killed'

"git fetch" that is killed may leave a pack-objects process behind,
still computing to find a good compression, wasting cycles.  This
has been corrected.

* jk/stop-pack-objects-when-fetch-is-killed:
  upload-pack: kill pack-objects helper on signal or exit

3 years agoMerge branch 'jk/stop-pack-objects-when-push-is-killed'
Junio C Hamano [Thu, 3 Dec 2020 08:18:06 +0000 (00:18 -0800)] 
Merge branch 'jk/stop-pack-objects-when-push-is-killed'

"git push" that is killed may leave a pack-objects process behind,
still computing to find a good compression, wasting cycles.  This
has been corrected.

* jk/stop-pack-objects-when-push-is-killed:
  send-pack: kill pack-objects helper on signal or exit

3 years agoMerge branch 'tb/repack-simplify'
Junio C Hamano [Thu, 3 Dec 2020 08:18:06 +0000 (00:18 -0800)] 
Merge branch 'tb/repack-simplify'

Simplify the logic to deal with a repack operation that ended up
creating the same packfile.

* tb/repack-simplify:
  builtin/repack.c: don't move existing packs out of the way
  builtin/repack.c: keep track of what pack-objects wrote
  repack: make "exts" array available outside cmd_repack()

3 years agoMerge branch 'pb/pull-rebase-recurse-submodules'
Junio C Hamano [Thu, 3 Dec 2020 08:18:06 +0000 (00:18 -0800)] 
Merge branch 'pb/pull-rebase-recurse-submodules'

"git pull --rebase --recurse-submodules" checked for local changes
in a wrong range and failed to run correctly when it should.

* pb/pull-rebase-recurse-submodules:
  pull: check for local submodule modifications with the right range
  t5572: describe '--rebase' tests a little more
  t5572: add notes on a peculiar test
  pull --rebase: compute rebase arguments in separate function

3 years agoMerge branch 'ab/retire-parse-remote'
Junio C Hamano [Thu, 3 Dec 2020 08:18:06 +0000 (00:18 -0800)] 
Merge branch 'ab/retire-parse-remote'

"git-parse-remote" shell script library outlived its usefulness.

* ab/retire-parse-remote:
  submodule: fix fetch_in_submodule logic
  parse-remote: remove this now-unused library
  submodule: remove sh function in favor of helper
  submodule: use "fetch" logic instead of custom remote discovery

3 years agodoc: make HTML manual reproducible
Arnout Engelen [Tue, 1 Dec 2020 09:50:37 +0000 (09:50 +0000)] 
doc: make HTML manual reproducible

Versions of docbook-xsl newer than 1.79.1 allows xsltproc to assign
IDs to nodes in the generated HTML consistently, to make the output
resulting from the same source stable and reproducible.

Pass the generate.consistent.ids parameter from the command line to
ask for this feature.  Older versions of the tool simply ignores the
parameter and produces their output the same way as before this
change, so there is no need to check for toolchain version.

Signed-off-by: Arnout Engelen <arnout@bzzt.net>
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Helped-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoRevert "submodules: fix of regression on fetching of non-init subsub-repo"
Junio C Hamano [Wed, 2 Dec 2020 23:07:14 +0000 (15:07 -0800)] 
Revert "submodules: fix of regression on fetching of non-init subsub-repo"

This reverts commit 1b7ac4e6d4d490b224f5206af7418ed74e490608; in
<CAN0XMOLiS_8JZKF_wW70BvRRxkDHyUoa=Z3ODtB_Bd6f5Y=7JQ@mail.gmail.com>,
Ralf Thielow reports that "git fetch" with submodule.recurse set can
result in a bogus and infinitely recursive fetching of the same
submodule.

3 years agoglossary: improve "branch" definition
Sergey Organov [Mon, 23 Nov 2020 20:05:51 +0000 (23:05 +0300)] 
glossary: improve "branch" definition

The old phrasing is at least questionable, if not wrong, as there are
a lot of branches out there that didn't see active development for
years, yet they are still branches, ready to become active again any
time.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMakefile: mark git-maintenance as a builtin
Jeff King [Wed, 2 Dec 2020 02:34:11 +0000 (21:34 -0500)] 
Makefile: mark git-maintenance as a builtin

We normally get the list of builtin commands by expanding BUILTIN_OBJS.
But for commands which are embedded inside another's source file (e.g.,
cmd_show() in builtin/log.c), the Makefile needs to be told explicitly
about them.

Since cmd_maintenance() is inside buitin/gc.c, it should be listed
explicitly in the BUILT_INS list in the Makefile. Not doing so isn't
_too_ tragic, as it simply means we will not make a git-maintenance
symlink in libexec/git-core. Since we encourage people to use the "git
foo" form, even in scripts which have put libexec into their PATH,
nobody seems to have noticed.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoapply: don't use core.sharedRepository to create working tree files
Matheus Tavares [Tue, 1 Dec 2020 23:45:04 +0000 (20:45 -0300)] 
apply: don't use core.sharedRepository to create working tree files

core.sharedRepository defines which permissions Git should set when
creating files in $GIT_DIR, so that the repository may be shared with
other users. But (in its current form) the setting shouldn't affect how
files are created in the working tree. This is not respected by apply
and am (which uses apply), when creating leading directories:

$ cat d.patch
 diff --git a/d/f b/d/f
 new file mode 100644
 index 0000000..e69de29

Apply without the setting:
$ umask 0077
$ git apply d.patch
$ ls -ld d
 drwx------

Apply with the setting:
$ umask 0077
$ git -c core.sharedRepository=0770 apply d.patch
$ ls -ld d
 drwxrws---

Only the leading directories are affected. That's because they are
created with safe_create_leading_directories(), which calls
adjust_shared_perm() to set the directories' permissions based on
core.sharedRepository. To fix that, let's introduce a variant of this
function that ignores the setting, and use it in apply. Also add a
regression test and a note in the function documentation about the use
of each variant according to the destination (working tree or git
dir).

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agobanned.h: mark ctime_r() and asctime_r() as banned
Jeff King [Tue, 1 Dec 2020 21:11:38 +0000 (13:11 -0800)] 
banned.h: mark ctime_r() and asctime_r() as banned

The ctime_r() and asctime_r() functions are reentrant, but have
no check that the buffer we pass in is long enough (the manpage says it
"should have room for at least 26 bytes"). Since this is such an
easy-to-get-wrong interface, and since we have the much safer strftime()
as well as its more convenient strbuf_addftime() wrapper, let's ban both
of those.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agogitignore: remove entry for git serve
René Scharfe [Wed, 2 Dec 2020 11:46:01 +0000 (12:46 +0100)] 
gitignore: remove entry for git serve

b7ce24d095 (Turn `git serve` into a test helper, 2019-04-18) demoted git
serve from a builtin command to a test helper.  As a result the
git-serve binary is no longer built and thus doesn't have to be ignored
anymore.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agogitignore: drop duplicate entry for git-sh-i18n
Jeff King [Wed, 2 Dec 2020 02:26:24 +0000 (21:26 -0500)] 
gitignore: drop duplicate entry for git-sh-i18n

This was accidentally added by e00cf070a4 (git-sh-i18n.sh: add no-op
gettext() and eval_gettext() wrappers, 2011-05-14), even though an
earlier commit in the same series had already done so.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agot7900: speed up expensive test
Jeff King [Wed, 2 Dec 2020 02:47:56 +0000 (21:47 -0500)] 
t7900: speed up expensive test

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>
3 years agobanned.h: mark non-reentrant gmtime, etc as banned
Jeff King [Tue, 1 Dec 2020 21:11:37 +0000 (13:11 -0800)] 
banned.h: mark non-reentrant gmtime, etc as banned

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>
3 years agoconfig.txt: fix a typo (backslash != backquote)
Štěpán Němec [Tue, 1 Dec 2020 12:10:51 +0000 (13:10 +0100)] 
config.txt: fix a typo (backslash != backquote)

Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agobuiltin/bugreport.c: use thread-safe localtime_r()
Taylor Blau [Tue, 1 Dec 2020 00:30:06 +0000 (19:30 -0500)] 
builtin/bugreport.c: use thread-safe localtime_r()

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>
3 years agoupload-pack: kill pack-objects helper on signal or exit
Jeff King [Tue, 1 Dec 2020 12:15:13 +0000 (07:15 -0500)] 
upload-pack: kill pack-objects helper on signal or exit

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>
3 years agoimap-send: parse default git config
Nicolas Morey-Chaisemartin [Tue, 1 Dec 2020 07:38:16 +0000 (08:38 +0100)] 
imap-send: parse default git config

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>
3 years agocompletion: zsh: fix file completion regression
Felipe Contreras [Tue, 1 Dec 2020 00:54:31 +0000 (18:54 -0600)] 
completion: zsh: fix file completion regression

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>
3 years agotests: lib-functions: trivial style cleanups
Felipe Contreras [Tue, 1 Dec 2020 00:46:49 +0000 (18:46 -0600)] 
tests: lib-functions: trivial style cleanups

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agotest: completion: fix typos
Felipe Contreras [Tue, 1 Dec 2020 00:46:48 +0000 (18:46 -0600)] 
test: completion: fix typos

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years ago.gitignore: remove dangling file
Felipe Contreras [Tue, 1 Dec 2020 00:46:47 +0000 (18:46 -0600)] 
.gitignore: remove dangling file

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>
3 years agorefspec: trivial cleanup
Felipe Contreras [Tue, 1 Dec 2020 00:46:46 +0000 (18:46 -0600)] 
refspec: trivial cleanup

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>
3 years agoNinth batch
Junio C Hamano [Mon, 30 Nov 2020 22:49:16 +0000 (14:49 -0800)] 
Ninth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'sa/credential-store-timeout'
Junio C Hamano [Mon, 30 Nov 2020 22:49:45 +0000 (14:49 -0800)] 
Merge branch 'sa/credential-store-timeout'

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

3 years agoMerge branch 'km/stash-error-message-fix'
Junio C Hamano [Mon, 30 Nov 2020 22:49:45 +0000 (14:49 -0800)] 
Merge branch 'km/stash-error-message-fix'

Error message fix.

* km/stash-error-message-fix:
  stash: add missing space to an error message

3 years agoMerge branch 'hn/sleep-millisec-decl'
Junio C Hamano [Mon, 30 Nov 2020 22:49:44 +0000 (14:49 -0800)] 
Merge branch 'hn/sleep-millisec-decl'

Move a definition of compatibility wrapper from cache.h to
git-compat-util.h

* hn/sleep-millisec-decl:
  move sleep_millisec to git-compat-util.h

3 years agoMerge branch 'js/t3404-master-to-primary'
Junio C Hamano [Mon, 30 Nov 2020 22:49:44 +0000 (14:49 -0800)] 
Merge branch 'js/t3404-master-to-primary'

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

3 years agoMerge branch 'na/notes-displayref-is-not-boolean'
Junio C Hamano [Mon, 30 Nov 2020 22:49:44 +0000 (14:49 -0800)] 
Merge branch 'na/notes-displayref-is-not-boolean'

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()

3 years agoMerge branch 'jc/do-not-just-explain-but-update-your-patch'
Junio C Hamano [Mon, 30 Nov 2020 22:49:43 +0000 (14:49 -0800)] 
Merge branch 'jc/do-not-just-explain-but-update-your-patch'

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

3 years agoMerge branch 'mt/worktree-error-message-fix'
Junio C Hamano [Mon, 30 Nov 2020 22:49:43 +0000 (14:49 -0800)] 
Merge branch 'mt/worktree-error-message-fix'

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

3 years agoMerge branch 'ab/gc-keep-base-option'
Junio C Hamano [Mon, 30 Nov 2020 22:49:42 +0000 (14:49 -0800)] 
Merge branch 'ab/gc-keep-base-option'

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

3 years agoMerge branch 'js/t1309-master-to-topic'
Junio C Hamano [Mon, 30 Nov 2020 22:49:42 +0000 (14:49 -0800)] 
Merge branch 'js/t1309-master-to-topic'

Test preparation.

* js/t1309-master-to-topic:
  t1309: use a neutral branch name in the `onbranch` test cases

3 years agoMerge branch 'js/pull-rebase-use-advise'
Junio C Hamano [Mon, 30 Nov 2020 22:49:42 +0000 (14:49 -0800)] 
Merge branch 'js/pull-rebase-use-advise'

UI improvement.

* js/pull-rebase-use-advise:
  pull: colorize the hint about setting `pull.rebase`

3 years agoMerge branch 'js/t4015-wo-master'
Junio C Hamano [Mon, 30 Nov 2020 22:49:41 +0000 (14:49 -0800)] 
Merge branch 'js/t4015-wo-master'

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

3 years agoMerge branch 'js/t3040-cleanup'
Junio C Hamano [Mon, 30 Nov 2020 22:49:41 +0000 (14:49 -0800)] 
Merge branch 'js/t3040-cleanup'

Cleanup.

* js/t3040-cleanup:
  t3040: remove stale note

3 years agoMerge branch 'js/t2106-cleanup'
Junio C Hamano [Mon, 30 Nov 2020 22:49:41 +0000 (14:49 -0800)] 
Merge branch 'js/t2106-cleanup'

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

3 years agofetch-pack: disregard invalid pack lockfiles
René Scharfe [Mon, 30 Nov 2020 19:27:15 +0000 (20:27 +0100)] 
fetch-pack: disregard invalid pack lockfiles

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>
3 years agorefspec: make @ a synonym of HEAD
Felipe Contreras [Thu, 26 Nov 2020 00:16:16 +0000 (18:16 -0600)] 
refspec: make @ a synonym of HEAD

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>
3 years agotests: push: trivial cleanup
Felipe Contreras [Thu, 26 Nov 2020 00:16:15 +0000 (18:16 -0600)] 
tests: push: trivial cleanup

No need to do two checkouts.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agotests: push: improve cleanup of HEAD tests
Felipe Contreras [Thu, 26 Nov 2020 00:16:14 +0000 (18:16 -0600)] 
tests: push: improve cleanup of HEAD tests

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>
3 years agoMyFirstObjectWalk: drop `init_walken_defaults()`
Martin Ågren [Sun, 29 Nov 2020 19:52:22 +0000 (20:52 +0100)] 
MyFirstObjectWalk: drop `init_walken_defaults()`

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>
3 years agogrep: copy struct in one fell swoop
Martin Ågren [Sun, 29 Nov 2020 19:52:21 +0000 (20:52 +0100)] 
grep: copy struct in one fell swoop

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>
3 years agoperf/fsmonitor: use test_must_be_empty helper
Nipunn Koorapati [Wed, 25 Nov 2020 22:11:37 +0000 (22:11 +0000)] 
perf/fsmonitor: use test_must_be_empty helper

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>
3 years agomaintenance: fix SEGFAULT when no repository
Rafael Silva [Thu, 26 Nov 2020 20:41:41 +0000 (20:41 +0000)] 
maintenance: fix SEGFAULT when no repository

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>
3 years agoEighth batch
Junio C Hamano [Wed, 25 Nov 2020 22:32:32 +0000 (14:32 -0800)] 
Eighth batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoMerge branch 'sg/tests-prereq'
Junio C Hamano [Wed, 25 Nov 2020 23:24:54 +0000 (15:24 -0800)] 
Merge branch 'sg/tests-prereq'

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

3 years agoMerge branch 'rs/plug-diff-cache-leak'
Junio C Hamano [Wed, 25 Nov 2020 23:24:53 +0000 (15:24 -0800)] 
Merge branch 'rs/plug-diff-cache-leak'

Memleak fix.

* rs/plug-diff-cache-leak:
  diff-lib: plug minor memory leaks in do_diff_cache()

3 years agoMerge branch 'rs/gc-sort-func-cast-fix'
Junio C Hamano [Wed, 25 Nov 2020 23:24:53 +0000 (15:24 -0800)] 
Merge branch 'rs/gc-sort-func-cast-fix'

Fix broken sorting of maintenance tasks.

* rs/gc-sort-func-cast-fix:
  gc: fix cast in compare_tasks_by_selection()

3 years agoMerge branch 'jc/ci-github-set-env'
Junio C Hamano [Wed, 25 Nov 2020 23:24:53 +0000 (15:24 -0800)] 
Merge branch 'jc/ci-github-set-env'

Another CI adjustment.

* jc/ci-github-set-env:
  ci: avoid `set-env` construct in print-test-failures.sh

3 years agoMerge branch 'sg/t5310-jgit-wants-sha1'
Junio C Hamano [Wed, 25 Nov 2020 23:24:53 +0000 (15:24 -0800)] 
Merge branch 'sg/t5310-jgit-wants-sha1'

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

3 years agoMerge branch 'rs/archive-plug-leak-refname'
Junio C Hamano [Wed, 25 Nov 2020 23:24:53 +0000 (15:24 -0800)] 
Merge branch 'rs/archive-plug-leak-refname'

Memleak fix.

* rs/archive-plug-leak-refname:
  archive: release refname after use

3 years agoMerge branch 'ma/list-object-filter-opt-msgfix'
Junio C Hamano [Wed, 25 Nov 2020 23:24:52 +0000 (15:24 -0800)] 
Merge branch 'ma/list-object-filter-opt-msgfix'

Error message fix.

* ma/list-object-filter-opt-msgfix:
  list-objects-filter-options: fix function name in BUG

3 years agoMerge branch 'pk/subsub-fetch-fix'
Junio C Hamano [Wed, 25 Nov 2020 23:24:52 +0000 (15:24 -0800)] 
Merge branch 'pk/subsub-fetch-fix'

"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

3 years agoMerge branch 'jk/4gb-idx'
Junio C Hamano [Wed, 25 Nov 2020 23:24:52 +0000 (15:24 -0800)] 
Merge branch 'jk/4gb-idx'

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

3 years agoMerge branch 'jx/t5411-flake-fix'
Junio C Hamano [Wed, 25 Nov 2020 23:24:52 +0000 (15:24 -0800)] 
Merge branch 'jx/t5411-flake-fix'

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

3 years agoMerge branch 'rs/hashwrite-be64'
Junio C Hamano [Wed, 25 Nov 2020 23:24:52 +0000 (15:24 -0800)] 
Merge branch 'rs/hashwrite-be64'

Code simplification.

* rs/hashwrite-be64:
  pack-write: use hashwrite_be64()
  midx: use hashwrite_be64()
  csum-file: add hashwrite_be64()

3 years agoMerge branch 'sg/bisect-approximately-halfway'
Junio C Hamano [Wed, 25 Nov 2020 23:24:52 +0000 (15:24 -0800)] 
Merge branch 'sg/bisect-approximately-halfway'

"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

3 years agoMerge branch 'fc/bash-completion-alias-of-alias'
Junio C Hamano [Wed, 25 Nov 2020 23:24:51 +0000 (15:24 -0800)] 
Merge branch 'fc/bash-completion-alias-of-alias'

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

3 years agomaintenance: use 'git config --fixed-value'
Derrick Stolee [Wed, 25 Nov 2020 22:12:56 +0000 (22:12 +0000)] 
maintenance: use 'git config --fixed-value'

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>
3 years agoMerge branch 'ds/config-literal-value' into ds/maintenance-part-3
Junio C Hamano [Wed, 25 Nov 2020 23:04:26 +0000 (15:04 -0800)] 
Merge branch 'ds/config-literal-value' into ds/maintenance-part-3

* 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

3 years agoconfig doc: value-pattern is not necessarily a regexp
Junio C Hamano [Wed, 25 Nov 2020 23:01:31 +0000 (15:01 -0800)] 
config doc: value-pattern is not necessarily a regexp

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>
3 years agoconfig: implement --fixed-value with --get*
Derrick Stolee [Wed, 25 Nov 2020 22:12:55 +0000 (22:12 +0000)] 
config: implement --fixed-value with --get*

The config builtin does its own regex matching of values for the --get,
--get-all, and --get-regexp modes. Plumb the existing 'flags' parameter
to the get_value() method so we can initialize the value-pattern argument
as a fixed string instead of a regex pattern.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoconfig: plumb --fixed-value into config API
Derrick Stolee [Wed, 25 Nov 2020 22:12:54 +0000 (22:12 +0000)] 
config: plumb --fixed-value into config API

The git_config_set_multivar_in_file_gently() and related methods now
take a 'flags' bitfield, so add a new bit representing the --fixed-value
option from 'git config'. This alters the purpose of the value_pattern
parameter to be an exact string match. This requires some initialization
changes in git_config_set_multivar_in_file_gently() and a new strcmp()
call in the matches() method.

The new CONFIG_FLAGS_FIXED_VALUE flag is initialized in builtin/config.c
based on the --fixed-value option, and that needs to be updated in
several callers.

This patch only affects some of the modes of 'git config', and the rest
will be completed in the next change.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agoconfig: add --fixed-value option, un-implemented
Derrick Stolee [Wed, 25 Nov 2020 22:12:53 +0000 (22:12 +0000)] 
config: add --fixed-value option, un-implemented

The 'git config' builtin takes a 'value-pattern' parameter for several
actions. This can cause confusion when expecting exact value matches
instead of regex matches, especially when the input string contains
metacharacters. While callers can escape the patterns themselves, it
would be more friendly to allow an argument to disable the pattern
matching in favor of an exact string match.

Add a new '--fixed-value' option that does not currently change the
behavior. The implementation will be filled in by later changes for
each appropriate action. For now, check and test that --fixed-value
will abort the command when included with an incompatible action or
without a 'value-pattern' argument.

The name '--fixed-value' was chosen over something simpler like
'--fixed' because some commands allow regular expressions on the
key in addition to the value.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
3 years agot1300: add test for --replace-all with value-pattern
Derrick Stolee [Wed, 25 Nov 2020 22:12:52 +0000 (22:12 +0000)] 
t1300: add test for --replace-all with value-pattern

The --replace-all option was added in 4ddba79d (git-config-set: add more
options) but was not tested along with the 'value-pattern' parameter.
Since we will be updating this option to optionally treat 'value-pattern'
as a fixed string, let's add a test here that documents the current
behavior.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>