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9729 commits

Author SHA1 Message Date
徐沛文 (Aleen) 7c096b8d61 am: support --empty=<option> to handle empty patches
Since that the command 'git-format-patch' can include patches of
commits that emit no changes, the 'git-am' command should also
support an option, named as '--empty', to specify how to handle
those empty patches. In this commit, we have implemented three
valid options ('stop', 'drop' and 'keep').

Signed-off-by: 徐沛文 (Aleen) <aleen42@vip.qq.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-15 17:04:18 -08:00
Junio C Hamano 2c0fa66bc8 Merge branch 'ab/fsck-unexpected-type'
Regression fix.

* ab/fsck-unexpected-type:
  object-file: free(*contents) only in read_loose_object() caller
  object-file: fix SEGV on free() regression in v2.34.0-rc2
2021-11-12 15:29:25 -08:00
Ævar Arnfjörð Bjarmason 16235e3b14 object-file: free(*contents) only in read_loose_object() caller
In the preceding commit a free() of uninitialized memory regression in
96e41f58fe (fsck: report invalid object type-path combinations,
2021-10-01) was fixed, but we'd still have an issue with leaking
memory from fsck_loose(). Let's fix that issue too.

That issue was introduced in my 31deb28f5e (fsck: don't hard die on
invalid object types, 2021-10-01). It can be reproduced under
SANITIZE=leak with the test I added in 093fffdfbe (fsck tests: add
test for fsck-ing an unknown type, 2021-10-01):

    ./t1450-fsck.sh --run=84 -vixd

In some sense it's not a problem, we lost the same amount of memory in
terms of things malloc'd and not free'd. It just moved from the "still
reachable" to "definitely lost" column in valgrind(1) nomenclature[1],
since we'd have die()'d before.

But now that we don't hard die() anymore in the library let's properly
free() it. Doing so makes this code much easier to follow, since we'll
now have one function owning the freeing of the "contents" variable,
not two.

For context on that memory management pattern the read_loose_object()
function was added in f6371f9210 (sha1_file: add read_loose_object()
function, 2017-01-13) and subsequently used in c68b489e56 (fsck:
parse loose object paths directly, 2017-01-13). The pattern of it
being the task of both sides to free() the memory has been there in
this form since its inception.

1. https://valgrind.org/docs/manual/mc-manual.html#mc-manual.leaks

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-11 13:40:43 -08:00
Junio C Hamano c1d16cedd4 Merge branch 'ds/no-usable-cron-on-macos'
"git maintenance run" learned to use system supplied scheduler
backend, but cron on macOS turns out to be unusable for this
purpose.

* ds/no-usable-cron-on-macos:
  maintenance: disable cron on macOS
2021-11-10 15:01:20 -08:00
Junio C Hamano 7c7cf62c48 Merge branch 'jc/fix-pull-ff-only-when-already-up-to-date'
"git pull --ff-only" and "git pull --rebase --ff-only" should make
it a no-op to attempt pulling from a remote that is behind us, but
instead the command errored out by saying it was impossible to
fast-forward, which may technically be true, but not a useful thing
to diagnose as an error.  This has been corrected.

* jc/fix-pull-ff-only-when-already-up-to-date:
  pull: --ff-only should make it a noop when already-up-to-date
2021-11-10 15:01:19 -08:00
Derrick Stolee 689a2aa719 maintenance: disable cron on macOS
In eba1ba9 (maintenance: `git maintenance run` learned
`--scheduler=<scheduler>`, 2021-09-04), we introduced the ability to
specify a scheduler explicitly. This led to some extra checks around
whether an alternative scheduler was available. This added the
functionality of removing background maintenance from schedulers other
than the one selected.

On macOS, cron is technically available, but running 'crontab' triggers
a UI prompt asking for special permissions. This is the major reason why
launchctl is used as the default scheduler. The is_crontab_available()
method triggers this UI prompt, causing user disruption.

Remove this disruption by using an #ifdef to prevent running crontab
this way on macOS. This has the unfortunate downside that if a user
manually selects cron via the '--scheduler' option, then adjusting the
scheduler later will not remove the schedule from cron. The
'--scheduler' option ignores the is_available checks, which is how we
can get into this situation.

Extract the new check_crontab_process() method to avoid making the
'child' variable unused on macOS. The method is marked MAYBE_UNUSED
because it has no callers on macOS.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-10 11:20:20 -08:00
Junio C Hamano a876f0b95c Merge branch 'ar/fix-git-pull-no-verify'
"git pull --no-verify" did not affect the underlying "git merge".

* ar/fix-git-pull-no-verify:
  pull: honor --no-verify and do not call the commit-msg hook
2021-11-04 12:07:46 -07:00
Junio C Hamano e2a33ef9e2 Merge branch 'jx/message-fixes'
Fixes to recently added messages.

* jx/message-fixes:
  i18n: fix typos found during l10n for git 2.34.0
2021-11-03 13:32:28 -07:00
Junio C Hamano 7afb458e91 Merge branch 'gc/use-repo-settings'
It is wrong to read some settings directly from the config
subsystem, as things like feature.experimental can affect their
default values.

* gc/use-repo-settings:
  gc: perform incremental repack when implictly enabled
  fsck: verify multi-pack-index when implictly enabled
  fsck: verify commit graph when implicitly enabled
2021-11-01 13:48:08 -07:00
Junio C Hamano b82299ec6f Merge branch 'ab/ignore-replace-while-working-on-commit-graph'
Teach "git commit-graph" command not to allow using replace objects
at all, as we do not use the commit-graph at runtime when we see
object replacement.

* ab/ignore-replace-while-working-on-commit-graph:
  commit-graph: don't consider "replace" objects with "verify"
  commit-graph tests: fix another graph_git_two_modes() helper
  commit-graph tests: fix error-hiding graph_git_two_modes() helper
2021-11-01 13:48:08 -07:00
Jiang Xin f733719316 i18n: fix typos found during l10n for git 2.34.0
Emir and Jean-Noël reported typos in some i18n messages when preparing
l10n for git 2.34.0.

* Fix unstable spelling of config variable "gpg.ssh.defaultKeyCommand"
  which was introduced in commit fd9e226776 (ssh signing: retrieve a
  default key from ssh-agent, 2021-09-10).

* Add missing space between "with" and "--python" which was introduced
  in commit bd0708c7eb (ref-filter: add %(raw) atom, 2021-07-26).

* Fix unmatched single quote in 'builtin/index-pack.c' which was
  introduced in commit 8737dab346 (index-pack: refactor renaming in
  final(), 2021-09-09)

[1] https://github.com/git-l10n/git-po/pull/567

Reported-by: Emir Sarı <bitigchi@me.com>
Reported-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-31 22:49:49 -07:00
Junio C Hamano f54c172bb3 Merge branch 'ks/submodule-add-message-fix'
Message regression fix.

* ks/submodule-add-message-fix:
  submodule: drop unused sm_name parameter from append_fetch_remotes()
  submodule--helper: fix incorrect newlines in an error message
2021-10-29 15:43:14 -07:00
Junio C Hamano 192a3fa31d Merge branch 'ab/plug-random-leaks'
Leakfix.

* ab/plug-random-leaks:
  reflog: free() ref given to us by dwim_log()
  submodule--helper: fix small memory leaks
  clone: fix a memory leak of the "git_dir" variable
  grep: fix a "path_list" memory leak
  grep: use object_array_clear() in cmd_grep()
  grep: prefer "struct grep_opt" over its "void *" equivalent
2021-10-29 15:43:13 -07:00
Junio C Hamano c3673a8eb2 Merge branch 'ab/ref-filter-leakfix'
"git for-each-ref" family of commands were leaking the ref_sorting
instances that hold sorting keys specified by the user; this has
been corrected.

* ab/ref-filter-leakfix:
  branch: use ref_sorting_release()
  ref-filter API user: add and use a ref_sorting_release()
  tag: use a "goto cleanup" pattern, leak less memory
2021-10-29 15:43:12 -07:00
Junio C Hamano 735907bde1 Merge branch 'jk/http-push-status-fix'
"git push" client talking to an HTTP server did not diagnose the
lack of the final status report from the other side correctly,
which has been corrected.

* jk/http-push-status-fix:
  transport-helper: recognize "expecting report" error from send-pack
  send-pack: complain about "expecting report" with --helper-status
2021-10-29 15:43:12 -07:00
Junio C Hamano 361cb52383 pull: --ff-only should make it a noop when already-up-to-date
Earlier, we made sure that "git pull --ff-only" (and "git -c
pull.ff=only pull") errors out when our current HEAD is not an
ancestor of the tip of the history we are merging, but the condition
to trigger the error was implemented incorrectly.

Imagine you forked from a remote branch, built your history on top
of it, and then attempted to pull from them again.  If they have not
made any update in the meantime, our current HEAD is obviously not
their ancestor, and this new error triggers.

Without the --ff-only option, we just report that there is no need
to pull; we did the same historically with --ff-only, too.

Make sure we do not fail with the recently added check to restore
the historical behaviour.

Reported-by: Kenneth Arnold <ka37@calvin.edu>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-29 00:15:39 -07:00
Alex Riesen 47bfdfb3fd pull: honor --no-verify and do not call the commit-msg hook
The option was incorrectly auto-translated to "--no-verify-signatures",
which causes the unexpected effect of the hook being called.
And an even more unexpected effect of disabling verification of signatures.

The manual page describes the option to behave same as the similarly
named option of "git merge", which seems to be the original intention
of this option in the "pull" command.

Signed-off-by: Alexander Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-28 09:52:09 -07:00
Jeff King 6b615dbece submodule: drop unused sm_name parameter from append_fetch_remotes()
Commit c21fb4676f (submodule--helper: fix incorrect newlines in an error
message, 2021-10-23) accidentally added a new, unused parameter while
changing the name and signature of show_fetch_remotes() to
append_fetch_remotes(). We can drop this to keep things simpler (and
satisfy -Wunused-parameter).

The error is likely because c21fb4676f is fixing a problem from
8c8195e9c3 (submodule--helper: introduce add-clone subcommand,
2021-07-10). An earlier iteration of that second commit introduced the
same unused parameter (though it was dropped before it finally made it
to 'next'), and the fix on top accidentally carried forward the extra
parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-27 10:42:11 -07:00
Junio C Hamano 06355d72dc Merge branch 'ab/pkt-line-cleanup'
Code clean-up.

* ab/pkt-line-cleanup:
  pkt-line.[ch]: remove unused packet_read_line_buf()
  pkt-line.[ch]: remove unused packet_buf_write_len()
2021-10-25 16:07:00 -07:00
Junio C Hamano 54c4f8ce52 Merge branch 'ab/mark-leak-free-tests-more'
Bunch of tests are marked as "passing leak check".

* ab/mark-leak-free-tests-more:
  merge: add missing strbuf_release()
  ls-files: add missing string_list_clear()
  ls-files: fix a trivial dir_clear() leak
  tests: fix test-oid-array leak, test in SANITIZE=leak
  tests: fix a memory leak in test-oidtree.c
  tests: fix a memory leak in test-parse-options.c
  tests: fix a memory leak in test-prio-queue.c
2021-10-25 16:06:59 -07:00
Junio C Hamano 65ca3245f9 Merge branch 'ab/parse-options-cleanup'
Random changes to parse-options implementation.

* ab/parse-options-cleanup:
  parse-options: change OPT_{SHORT,UNSET} to an enum
  parse-options tests: test optname() output
  parse-options.[ch]: make opt{bug,name}() "static"
  commit-graph: stop using optname()
  parse-options.c: move optname() earlier in the file
  parse-options.h: make the "flags" in "struct option" an enum
  parse-options.c: use exhaustive "case" arms for "enum parse_opt_result"
  parse-options.[ch]: consistently use "enum parse_opt_result"
  parse-options.[ch]: consistently use "enum parse_opt_flags"
  parse-options.h: move PARSE_OPT_SHELL_EVAL between enums
2021-10-25 16:06:59 -07:00
Junio C Hamano 18c6653da0 Merge branch 'fs/ssh-signing'
Use ssh public crypto for object and push-cert signing.

* fs/ssh-signing:
  ssh signing: test that gpg fails for unknown keys
  ssh signing: tests for logs, tags & push certs
  ssh signing: duplicate t7510 tests for commits
  ssh signing: verify signatures using ssh-keygen
  ssh signing: provide a textual signing_key_id
  ssh signing: retrieve a default key from ssh-agent
  ssh signing: add ssh key format and signing code
  ssh signing: add test prereqs
  ssh signing: preliminary refactoring and clean-up
2021-10-25 16:06:58 -07:00
Junio C Hamano 061a21d36d Merge branch 'ab/fsck-unexpected-type'
"git fsck" has been taught to report mismatch between expected and
actual types of an object better.

* ab/fsck-unexpected-type:
  fsck: report invalid object type-path combinations
  fsck: don't hard die on invalid object types
  object-file.c: stop dying in parse_loose_header()
  object-file.c: return ULHR_TOO_LONG on "header too long"
  object-file.c: use "enum" return type for unpack_loose_header()
  object-file.c: simplify unpack_loose_short_header()
  object-file.c: make parse_loose_header_extended() public
  object-file.c: return -1, not "status" from unpack_loose_header()
  object-file.c: don't set "typep" when returning non-zero
  cat-file tests: test for current --allow-unknown-type behavior
  cat-file tests: add corrupt loose object test
  cat-file tests: test for missing/bogus object with -t, -s and -p
  cat-file tests: move bogus_* variable declarations earlier
  fsck tests: test for garbage appended to a loose object
  fsck tests: test current hash/type mismatch behavior
  fsck tests: refactor one test to use a sub-repo
  fsck tests: add test for fsck-ing an unknown type
2021-10-25 16:06:56 -07:00
Kaartic Sivaraam c21fb4676f submodule--helper: fix incorrect newlines in an error message
A refactoring[1] done as part of the recent conversion of
'git submodule add' to builtin, changed the error message
shown when a Git directory already exists locally for a submodule
name. Before the refactoring, the error used to appear like so:

  --- START OF OUTPUT ---
  $ git submodule add ../sub/ subm
  A git directory for 'subm' is found locally with remote(s):
    origin        /me/git-repos-for-test/sub
  If you want to reuse this local git directory instead of cloning again from
    /me/git-repos-for-test/sub
  use the '--force' option. If the local git directory is not the correct repo
  or you are unsure what this means choose another name with the '--name' option.
  ---  END OF OUTPUT  ---

After the refactoring the error started appearing like so:

  --- START OF OUTPUT ---
  $ git submodule add ../sub/ subm
  A git directory for 'subm' is found locally with remote(s):  origin     /me/git-repos-for-test/sub
  fatal: If you want to reuse this local git directory instead of cloning again from
  /me/git-repos-for-test/sub
  use the '--force' option. If the local git directory is not the correct repo
  or if you are unsure what this means, choose another name with the '--name' option.

  ---  END OF OUTPUT  ---

As one could observe the remote information is printed along with the
first line rather than on its own line. Also, there's an additional
newline following output.

Make the error message consistent with the error message that used to be
printed before the refactoring.

This also moves the 'fatal:' prefix that appears in the middle of the
error message to the first line as it would more appropriate to have
it in the first line. The output after the change would look like:

  --- START OF OUTPUT ---
  $ git submodule add ../sub/ subm
  fatal: A git directory for 'subm' is found locally with remote(s):
    origin        /me/git-repos-for-test/sub
  If you want to reuse this local git directory instead of cloning again from
    /me/git-repos-for-test/sub
  use the '--force' option. If the local git directory is not the correct repo
  or you are unsure what this means choose another name with the '--name' option.
  ---  END OF OUTPUT  ---

[1]: https://lore.kernel.org/git/20210710074801.19917-5-raykar.ath@gmail.com/#t

Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 23:01:56 -07:00
Ævar Arnfjörð Bjarmason 3c8150497f reflog: free() ref given to us by dwim_log()
When dwim_log() returns the "ref" is always ether NULL or an
xstrdup()'d string.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason c270b055d9 submodule--helper: fix small memory leaks
Add a missing strbuf_release() and a clear_pathspec() to the
submodule--helper.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason 27ff1fbc5d clone: fix a memory leak of the "git_dir" variable
At this point in cmd_clone the "git_dir" is always either an
xstrdup()'d string, or something we got from mkpathdup(). Let's free()
it before we clobber it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason b202e51b15 grep: fix a "path_list" memory leak
Free the "path_list" used in builtin/grep.c, it was declared as
STRING_LIST_INIT_NODUP, let's change it to a STRING_LIST_INIT_DUP
since an early user in cmd_grep() appends a string passed via
parse-options.c to it, which needs to be duplicated.

Let's then convert the remaining callers to use
string_list_append_nodup() instead, allowing us to free the list.

This makes all the tests in t7811-grep-open.sh pass, 6/10 would fail
before this change. The only remaining failure would have been due to
a stray "git checkout" (which still leaks memory). In this case we can
use a "git reset --hard" instead, so let's do that, and move the
test_when_finished() above the code that would modify the relevant
file.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason 96c101257b grep: use object_array_clear() in cmd_grep()
Free the "struct object_array" before exiting. This makes grep tests
(e.g.  "t7815-grep-binary.sh") a bit happer under SANITIZE=leak.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason a2fb7672c0 grep: prefer "struct grep_opt" over its "void *" equivalent
Stylistically fix up code added in bfac23d953 (grep: Fix two memory
leaks, 2010-01-30). We usually don't use the "arg" at all once we've
casted it to the struct we want, let's not do that here when we're
freeing it. Perhaps it was thought that a cast to "void *" would
otherwise be needed?

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-23 10:45:25 -07:00
Ævar Arnfjörð Bjarmason d72d4f92e2 branch: use ref_sorting_release()
Use a ref_sorting_release() in branch.c to free the memory from the
ref_sorting_options(). This plugs the final in-tree memory leak of
that API.

In the preceding commit the "sorting" variable was left in the
cmd_branch() scope, even though that wasn't needed anymore. Move it to
the "else if (list)" scope instead. We can also move the "struct
string_list" only used for that branch to be declared in that block

That "struct ref_sorting" does not need to be "static" (and isn't
re-used). The "ref_sorting_options()" will return a valid one, we
don't need to make it "static" to have it zero'd out. That it was
static was another artifact of the pre-image of the preceding commit.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 11:36:13 -07:00
Ævar Arnfjörð Bjarmason e5fb028688 ref-filter API user: add and use a ref_sorting_release()
Add a ref_sorting_release() and use it for some of the current API
users, the ref_sorting_default() function and its siblings will do a
malloc() which wasn't being free'd previously.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 11:36:13 -07:00
Ævar Arnfjörð Bjarmason 37766b61cd tag: use a "goto cleanup" pattern, leak less memory
Change cmd_tag() to free its "struct strbuf"'s instead of using an
UNLEAK() pattern. This changes code added in 886e1084d7 (builtin/:
add UNLEAKs, 2017-10-01).

As shown in the context of the declaration of the "struct
msg_arg" (which I'm changing to use a designated initializer while at
it, and to show the context in this change), that struct is just a
thin wrapper around an int and "struct strbuf".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 11:36:13 -07:00
Junio C Hamano 092228ee5c Merge branch 'jk/cat-file-batch-all-wo-replace'
"git cat-file --batch" with the "--batch-all-objects" option is
supposed to iterate over all the objects found in a repository, but
it used to translate these object names using the replace mechanism,
which defeats the point of enumerating all objects in the repository.
This has been corrected.

* jk/cat-file-batch-all-wo-replace:
  cat-file: use packed_object_info() for --batch-all-objects
  cat-file: split ordered/unordered batch-all-objects callbacks
  cat-file: disable refs/replace with --batch-all-objects
  cat-file: mention --unordered along with --batch-all-objects
  t1006: clean up broken objects
2021-10-18 15:47:57 -07:00
Junio C Hamano a4b9fb6a5c Merge branch 'ab/designated-initializers-more'
Code clean-up.

* ab/designated-initializers-more:
  builtin/remote.c: add and use SHOW_INFO_INIT
  builtin/remote.c: add and use a REF_STATES_INIT
  urlmatch.[ch]: add and use URLMATCH_CONFIG_INIT
  builtin/blame.c: refactor commit_info_init() to COMMIT_INFO_INIT macro
  daemon.c: refactor hostinfo_init() to HOSTINFO_INIT macro
2021-10-18 15:47:57 -07:00
Junio C Hamano 0b69bb0fb1 Merge branch 'tb/repack-write-midx'
"git repack" has been taught to generate multi-pack reachability
bitmaps.

* tb/repack-write-midx:
  test-read-midx: fix leak of bitmap_index struct
  builtin/repack.c: pass `--refs-snapshot` when writing bitmaps
  builtin/repack.c: make largest pack preferred
  builtin/repack.c: support writing a MIDX while repacking
  builtin/repack.c: extract showing progress to a variable
  builtin/repack.c: rename variables that deal with non-kept packs
  builtin/repack.c: keep track of existing packs unconditionally
  midx: preliminary support for `--refs-snapshot`
  builtin/multi-pack-index.c: support `--stdin-packs` mode
  midx: expose `write_midx_file_only()` publicly
2021-10-18 15:47:57 -07:00
Junio C Hamano 223a1bfb58 Merge branch 'js/retire-preserve-merges'
The "--preserve-merges" option of "git rebase" has been removed.

* js/retire-preserve-merges:
  sequencer: restrict scope of a formerly public function
  rebase: remove a no-longer-used function
  rebase: stop mentioning the -p option in comments
  rebase: remove obsolete code comment
  rebase: drop the internal `rebase--interactive` command
  git-svn: drop support for `--preserve-merges`
  rebase: drop support for `--preserve-merges`
  pull: remove support for `--rebase=preserve`
  tests: stop testing `git rebase --preserve-merges`
  remote: warn about unhandled branch.<name>.rebase values
  t5520: do not use `pull.rebase=preserve`
2021-10-18 15:47:56 -07:00
Jeff King e4c9538a9c send-pack: complain about "expecting report" with --helper-status
When pushing to a server which erroneously omits the final ref-status
report, the client side should complain about the refs for which we
didn't receive the status (because we can't just assume they were
updated). This works over most transports like ssh, but for http we'll
print a very misleading "Everything up-to-date".

It works for ssh because send-pack internally sets the status of each
ref to REF_STATUS_EXPECTING_REPORT, and then if the server doesn't tell
us about a particular ref, it will stay at that value. When we print the
final status table, we'll see that we're still on EXPECTING_REPORT and
complain then.

But for http, we go through remote-curl, which invokes send-pack with
"--stateless-rpc --helper-status". The latter option causes send-pack to
return a machine-readable list of ref statuses to the remote helper. But
ever since its inception in de1a2fdd38 (Smart push over HTTP: client
side, 2009-10-30), the send-pack code has simply omitted mention of any
ref which ended up in EXPECTING_REPORT.

In the remote helper, we then take the absence of any status report
from send-pack to mean that the ref was not even something we tried to
send, and thus it prints "Everything up-to-date". Fortunately it does
detect the eventual non-zero exit from send-pack, and propagates that in
its own non-zero exit code. So at least a careful script invoking "git
push" would notice the failure.  But sending the misleading message on
stderr is certainly confusing for humans (not to mention the
machine-readable "push --porcelain" output, though again, any careful
script should be checking the exit code from push, too).

Nobody seems to have noticed because the server in this instance has to
be misbehaving: it has promised to support the ref-status capability
(otherwise the client will not set EXPECTING_REPORT at all), but didn't
send us any. If the connection were simply cut, then send-pack would
complain about getting EOF while trying to read the status. But if the
server actually sends a flush packet (i.e., saying "now you have all of
the ref statuses" without actually sending any), then the client ends up
in this confused situation.

The fix is simple: we should return an error message from "send-pack
--helper-status", just like we would for any other error per-ref error
condition (in the test I included, the server simply omits all ref
status responses, but a more insidious version of this would skip only
some of them).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-18 13:26:52 -07:00
Glen Choo a897ab7ed1 gc: perform incremental repack when implictly enabled
builtin/gc.c has two ways of checking if multi-pack-index is enabled:
- git_config_get_bool() in incremental_repack_auto_condition()
- the_repository->settings.core_multi_pack_index in
  maintenance_task_incremental_repack()

The two implementations have existed since the incremental-repack task
was introduced in e841a79a13 (maintenance: add incremental-repack auto
condition, 2020-09-25). These two values can diverge because
prepare_repo_settings() enables the feature in the_repository->settings
by default.

In the case where core.multiPackIndex is not set in the config, the auto
condition would fail, causing the incremental-repack task to not be
run. Because we always want to consider the default values, we should
always use the_repository->settings.

Standardize on using the_repository->settings.core_multi_pack_index to
check if multi-pack-index is enabled.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 14:30:10 -07:00
Glen Choo dc5570872f fsck: verify multi-pack-index when implictly enabled
Like the previous commit, change fsck to check the
"core_multi_pack_index" variable set in "repo-settings.c" instead of
reading the "core.multiPackIndex" config variable. This fixes a bug
where we wouldn't verify midx if the config key was missing. This bug
was introduced in 18e449f86b (midx: enable core.multiPackIndex by
default, 2020-09-25) where core.multiPackIndex was turned on by default.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 14:30:08 -07:00
Glen Choo f30e4d854b fsck: verify commit graph when implicitly enabled
Change fsck to check the "core_commit_graph" variable set in
"repo-settings.c" instead of reading the "core.commitGraph" variable.
This fixes a bug where we wouldn't verify the commit-graph if the
config key was missing. This bug was introduced in
31b1de6a09 (commit-graph: turn on commit-graph by default, 2019-08-13),
where core.commitGraph was turned on by default.

Add tests to "t5318-commit-graph.sh" to verify that fsck checks the
commit-graph as expected for the 3 values of core.commitGraph. Also,
disable GIT_TEST_COMMIT_GRAPH in t/t0410-partial-clone.sh because some
test cases use fsck in ways that assume that commit-graph checking is
disabled.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 14:30:07 -07:00
Junio C Hamano ed41385ad6 Merge branch 'ab/ignore-replace-while-working-on-commit-graph' into gc/use-repo-settings
* ab/ignore-replace-while-working-on-commit-graph:
  commit-graph: don't consider "replace" objects with "verify"
  commit-graph tests: fix another graph_git_two_modes() helper
  commit-graph tests: fix error-hiding graph_git_two_modes() helper
2021-10-15 14:30:00 -07:00
Ævar Arnfjörð Bjarmason ec9a37d69b pkt-line.[ch]: remove unused packet_read_line_buf()
This function was added in 4981fe750b (pkt-line: share
buffer/descriptor reading implementation, 2013-02-23), but in
01f9ec64c8 (Use packet_reader instead of packet_read_line,
2018-12-29) the code that was using it was removed.

Since it's being removed we can in turn remove the "src" and "src_len"
arguments to packet_read(), all the remaining users just passed a
NULL/NULL pair to it.

That function is only a thin wrapper for packet_read_with_status()
which still needs those arguments, but for the thin packet_read()
convenience wrapper we can do away with it for now.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 13:09:40 -07:00
Ævar Arnfjörð Bjarmason 095d112f8c commit-graph: don't consider "replace" objects with "verify"
Extend the code added in d6538246d3 (commit-graph: not compatible
with replace objects, 2018-08-20) which ignored replace objects in the
"write" command to ignore it in the "verify" command too.

We can just move this assignment to the cmd_commit_graph(), it
dispatches to "write" and "verify", and we're unlikely to ever get a
sub-command that would like to consider replace refs.

This will make tests added in eddc1f556c (mktag tests: test
update-ref and reachable fsck, 2021-06-17) pass in combination with
the "GIT_TEST_COMMIT_GRAPH" mode added in 859fdc0c3c (commit-graph:
define GIT_TEST_COMMIT_GRAPH, 2018-08-29), except that mode is
currently broken (but is being fixed concurrently). See the discussion
starting at [1].

1. https://lore.kernel.org/git/87wnmihswp.fsf@evledraar.gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-15 09:21:30 -07:00
Junio C Hamano d7bc852151 Merge branch 'ab/align-parse-options-help'
When "git cmd -h" shows more than one line of usage text (e.g.
the cmd subcommand may take sub-sub-command), parse-options API
learned to align these lines, even across i18n/l10n.

* ab/align-parse-options-help:
  parse-options: properly align continued usage output
  git rev-parse --parseopt tests: add more usagestr tests
  send-pack: properly use parse_options() API for usage string
  parse-options API users: align usage output in C-strings
2021-10-13 15:15:58 -07:00
Junio C Hamano 62f035aee3 Merge branch 'ab/help-config-vars'
Teach "git help -c" into helping the command line completion of
configuration variables.

* ab/help-config-vars:
  help: move column config discovery to help.c library
  help / completion: make "git help" do the hard work
  help tests: test --config-for-completion option & output
  help: simplify by moving to OPT_CMDMODE()
  help: correct logic error in combining --all and --guides
  help: correct logic error in combining --all and --config
  help tests: add test for --config output
  help: correct usage & behavior of "git help --guides"
  help: correct the usage string in -h and documentation
2021-10-13 15:15:58 -07:00
Junio C Hamano a5e61a4225 Merge branch 'ab/config-based-hooks-1'
Mostly preliminary clean-up in the hook API.

* ab/config-based-hooks-1:
  hook-list.h: add a generated list of hooks, like config-list.h
  hook.c users: use "hook_exists()" instead of "find_hook()"
  hook.c: add a hook_exists() wrapper and use it in bugreport.c
  hook.[ch]: move find_hook() from run-command.c to hook.c
  Makefile: remove an out-of-date comment
  Makefile: don't perform "mv $@+ $@" dance for $(GENERATED_H)
  Makefile: stop hardcoding {command,config}-list.h
  Makefile: mark "check" target as .PHONY
2021-10-13 15:15:57 -07:00
Junio C Hamano a7c2daa06d Merge branch 'en/removing-untracked-fixes'
Various fixes in code paths that move untracked files away to make room.

* en/removing-untracked-fixes:
  Documentation: call out commands that nuke untracked files/directories
  Comment important codepaths regarding nuking untracked files/dirs
  unpack-trees: avoid nuking untracked dir in way of locally deleted file
  unpack-trees: avoid nuking untracked dir in way of unmerged file
  Change unpack_trees' 'reset' flag into an enum
  Remove ignored files by default when they are in the way
  unpack-trees: make dir an internal-only struct
  unpack-trees: introduce preserve_ignored to unpack_trees_options
  read-tree, merge-recursive: overwrite ignored files by default
  checkout, read-tree: fix leak of unpack_trees_options.dir
  t2500: add various tests for nuking untracked files
2021-10-13 15:15:57 -07:00
Junio C Hamano 2d498a7c89 Merge branch 'ds/add-rm-with-sparse-index'
"git add", "git mv", and "git rm" have been adjusted to avoid
updating paths outside of the sparse-checkout definition unless
the user specifies a "--sparse" option.

* ds/add-rm-with-sparse-index:
  advice: update message to suggest '--sparse'
  mv: refuse to move sparse paths
  rm: skip sparse paths with missing SKIP_WORKTREE
  rm: add --sparse option
  add: update --renormalize to skip sparse paths
  add: update --chmod to skip sparse paths
  add: implement the --sparse option
  add: skip tracked paths outside sparse-checkout cone
  add: fail when adding an untracked sparse file
  dir: fix pattern matching on dirs
  dir: select directories correctly
  t1092: behavior for adding sparse files
  t3705: test that 'sparse_entry' is unstaged
2021-10-13 15:15:56 -07:00
Junio C Hamano ef09a7fbbe Merge branch 'da/difftool-dir-diff-symlink-fix' into maint
"git difftool --dir-diff" mishandled symbolic links.

* da/difftool-dir-diff-symlink-fix:
  difftool: fix symlink-file writing in dir-diff mode
2021-10-12 13:51:48 -07:00