Граф коммитов

66621 Коммитов

Автор SHA1 Сообщение Дата
Junio C Hamano da95e25656 Merge branch 'gc/branch-recurse-submodules-fix'
A handful of obvious clean-ups around a topic that is already in
'master'.

* gc/branch-recurse-submodules-fix:
  branch.c: simplify advice-and-die sequence
  branch: rework comments for future developers
  branch: remove negative exit code
  branch --set-upstream-to: be consistent when advising
  branch: give submodule updating advice before exit
  branch: support more tracking modes when recursing
2022-04-04 10:56:23 -07:00
Junio C Hamano 98f6a3a353 Merge branch 'ns/fsync-or-die-message-fix'
When creating a loose object file, we didn't report the exact
filename of the file we failed to fsync, even though the
information was readily available, which has been corrected.

* ns/fsync-or-die-message-fix:
  object-file: pass filename to fsync_or_die
2022-04-04 10:56:22 -07:00
Junio C Hamano 27dd460799 Merge branch 'ns/core-fsyncmethod'
A couple of fix-up to a topic that is now in 'master'.

* ns/core-fsyncmethod:
  core.fsyncmethod: correctly camel-case warning message
  core.fsync: fix incorrect expression for default configuration
2022-04-04 10:56:22 -07:00
Junio C Hamano 8e6e14fcea Merge branch 'dp/worktree-repair-in-usage'
Usage string fix.

* dp/worktree-repair-in-usage:
  worktree: include repair cmd in usage
2022-04-04 10:56:22 -07:00
Junio C Hamano 259ec8f5b9 Merge branch 'ab/reftable-aix-xlc-12'
Work around AIX C compiler that does not seem to grok
initialization of a union member of a struct.

* ab/reftable-aix-xlc-12:
  reftable: make assignments portable to AIX xlc v12.01
2022-04-04 10:56:22 -07:00
Junio C Hamano cf0e875cd8 Merge branch 'gc/submodule-update-part2'
Move more "git submodule update" to C.

* gc/submodule-update-part2:
  submodule--helper: remove forward declaration
  submodule: move core cmd_update() logic to C
  submodule--helper: reduce logic in run_update_procedure()
  submodule--helper: teach update_data more options
  builtin/submodule--helper.c: rename option struct to "opt"
  submodule update: use die_message()
  submodule--helper: run update using child process struct
2022-04-04 10:56:22 -07:00
Junio C Hamano e8926670d4 Merge branch 'ds/t7700-kept-pack-test'
Test clean-up.

* ds/t7700-kept-pack-test:
  test-lib-functions: remove test_subcommand_inexact
  t7700: check post-condition in kept-pack test
2022-04-04 10:56:21 -07:00
Junio C Hamano 3928e902e3 Merge branch 'ds/partial-bundle-more'
Code clean-up.

* ds/partial-bundle-more:
  pack-objects: lazily set up "struct rev_info", don't leak
  bundle: output hash information in 'verify'
  bundle: move capabilities to end of 'verify'
  pack-objects: parse --filter directly into revs.filter
  pack-objects: move revs out of get_object_list()
  list-objects-filter: remove CL_ARG__FILTER
2022-04-04 10:56:21 -07:00
Junio C Hamano 1041d58b4d Merge branch 'tl/ls-tree-oid-only'
"git ls-tree" learns "--oid-only" option, similar to "--name-only",
and more generalized "--format" option.

* tl/ls-tree-oid-only:
  ls-tree: split up "fast path" callbacks
  ls-tree: detect and error on --name-only --name-status
  ls-tree: support --object-only option for "git-ls-tree"
  ls-tree: introduce "--format" option
  cocci: allow padding with `strbuf_addf()`
  ls-tree: introduce struct "show_tree_data"
  ls-tree: slightly refactor `show_tree()`
  ls-tree: fix "--name-only" and "--long" combined use bug
  ls-tree: simplify nesting if/else logic in "show_tree()"
  ls-tree: rename "retval" to "recurse" in "show_tree()"
  ls-tree: use "size_t", not "int" for "struct strbuf"'s "len"
  ls-tree: use "enum object_type", not {blob,tree,commit}_type
  ls-tree: add missing braces to "else" arms
  ls-tree: remove commented-out code
  ls-tree tests: add tests for --name-status
2022-04-04 10:56:21 -07:00
Junio C Hamano 3ff8cbfe8a Merge branch 'ab/reflog-parse-options'
"git reflog" command now uses parse-options API to parse its
command line options.

* ab/reflog-parse-options:
  reflog: fix 'show' subcommand's argv
  reflog [show]: display sensible -h output
  reflog: convert to parse_options() API
  reflog exists: use parse_options() API
  git reflog [expire|delete]: make -h output consistent with SYNOPSIS
  reflog: move "usage" variables and use macros
  reflog tests: add missing "git reflog exists" tests
  reflog: refactor cmd_reflog() to "if" branches
  reflog.c: indent argument lists
2022-04-04 10:56:21 -07:00
Tao Klerks e4921d877a tracking branches: add advice to ambiguous refspec error
The error "not tracking: ambiguous information for ref" is raised
when we are evaluating what tracking information to set on a branch,
and find that the ref to be added as tracking branch is mapped
under multiple remotes' fetch refspecs.

This can easily happen when a user copy-pastes a remote definition
in their git config, and forgets to change the tracking path.

Add advice in this situation, explicitly highlighting which remotes
are involved and suggesting how to correct the situation. Also
update a test to explicitly expect that advice.

Signed-off-by: Tao Klerks <tao@klerks.biz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-04-01 10:09:18 -07:00
Glen Choo 6696601241 branch.c: simplify advice-and-die sequence
In the dwim_branch_start(), when we cannot find an appropriate
upstream, we will die with the same message anyway, whether we
issue an advice message.

Flip the code around a bit and simplify the flow using
advise_if_enabled() function.

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>
2022-03-31 15:52:53 -07:00
Glen Choo 1f888282e2 branch: rework comments for future developers
For two cases in which we do not explicitly pass --track=<choice>
option down to the submodule--helper subprocess, we have comments
that say "we do not have to pass --track", but in fact we not just
do not have to, but it would be incorrect to pass any --track option
to the subprocess (instead, the correct behaviour is to let the
subprocess figure out what is the appropriate tracking mode to use).

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-31 15:52:51 -07:00
Junio C Hamano dda31145d7 Merge branch 'ab/usage-die-message' into gc/branch-recurse-submodules-fix
* ab/usage-die-message:
  config API: use get_error_routine(), not vreportf()
  usage.c + gc: add and use a die_message_errno()
  gc: return from cmd_gc(), don't call exit()
  usage.c API users: use die_message() for error() + exit 128
  usage.c API users: use die_message() for "fatal :" + exit 128
  usage.c: add a die_message() routine
2022-03-31 15:32:48 -07:00
Phillip Wood d97eb302ea worktree: add -z option for list subcommand
Add a -z option to be used in conjunction with --porcelain that gives
NUL-terminated output. As 'worktree list --porcelain' does not quote
worktree paths this enables it to handle worktree paths that contain
newlines.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-31 13:28:55 -07:00
Junio C Hamano 6563706568 CodingGuidelines: give deadline for "for (int i = 0; ..."
We raised the weather balloon to see if we can allow the construct
in 44ba10d6 (revision: use C99 declaration of variable in for()
loop, 2021-11-14), which was shipped as a part of Git v2.35.
Document that fact in the coding guidelines, and more importantly,
give ourselves a deadline to revisit and update.

Let's declare that we will officially adopt the variable declaration
in the initializaiton part of "for ()" statement this winter, unless
we find that a platform we care about does not grok it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-31 13:12:26 -07:00
Junio C Hamano 4b6846d9dc The 17th batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 18:01:11 -07:00
Junio C Hamano 53747016a6 Merge branch 'ab/test-tap-fix-for-immediate'
Fix test framework a bit.

* ab/test-tap-fix-for-immediate:
  test-lib: have --immediate emit valid TAP on failure
2022-03-30 18:01:11 -07:00
Junio C Hamano a5bf611cc4 Merge branch 'ab/hook-tests-updates'
Update tests around the use of hook scripts.

* ab/hook-tests-updates:
  http tests: use "test_hook" for "smart" and "dumb" http tests
  proc-receive hook tests: use "test_hook" instead of "write_script"
  tests: extend "test_hook" for "rm" and "chmod -x", convert "$HOOK"
  tests: use "test_hook" for misc "mkdir -p" and "chmod" cases
  tests: change "mkdir -p && write_script" to use "test_hook"
  tests: change "cat && chmod +x" to use "test_hook"
  gc + p4 tests: use "test_hook", remove sub-shells
  fetch+push tests: use "test_hook" and "test_when_finished" pattern
  bugreport tests: tighten up "git bugreport -s hooks" test
  tests: assume the hooks are disabled by default
  http tests: don't rely on "hook/post-update.sample"
  hook tests: turn exit code assertions into a loop
  test-lib-functions: add and use a "test_hook" wrapper
2022-03-30 18:01:11 -07:00
Junio C Hamano 2ea7e40c53 Merge branch 'jd/prompt-upstream-mark'
Tweaks in the command line prompt (in contrib/) code around its
GIT_PS1_SHOWUPSTREAM feature.

* jd/prompt-upstream-mark:
  git-prompt: put upstream comments together
  git-prompt: make long upstream state indicator consistent
  git-prompt: make upstream state indicator location consistent
  git-prompt: rename `upstream` to `upstream_type`
2022-03-30 18:01:11 -07:00
Junio C Hamano d723492127 Merge branch 'pw/add-p-single-key'
Finishing touches to C rewrite of "git add -i" in single-key
interactive mode.

* pw/add-p-single-key:
  terminal: restore settings on SIGTSTP
  terminal: work around macos poll() bug
  terminal: don't assume stdin is /dev/tty
  terminal: use flags for save_term()
2022-03-30 18:01:11 -07:00
Junio C Hamano 83791bc52b Merge branch 'ab/make-optim-noop'
A micro fix to a topic earlier merged to 'master'

* ab/make-optim-noop:
  Makefile: use ' ', not non-existing $(wspfx_SQ)
2022-03-30 18:01:11 -07:00
Junio C Hamano 6d51217467 Merge branch 'vd/stash-silence-reset'
"git stash" does not allow subcommands it internally runs as its
implementation detail, except for "git reset", to emit messages;
now "git reset" part has also been squelched.

* vd/stash-silence-reset:
  reset: show --no-refresh in the short-help
  reset: remove 'reset.refresh' config option
  reset: remove 'reset.quiet' config option
  reset: do not make '--quiet' disable index refresh
  stash: make internal resets quiet and refresh index
  reset: suppress '--no-refresh' advice if logging is silenced
  reset: replace '--quiet' with '--no-refresh' in performance advice
  reset: introduce --[no-]refresh option to --mixed
  reset: revise index refresh advice
2022-03-30 18:01:10 -07:00
Junio C Hamano cb3b3974b3 Merge branch 'ab/racy-hooks'
Regression fix.

* ab/racy-hooks:
  hooks: fix "invoked hook" regression in a8cc594333
2022-03-30 18:01:10 -07:00
Glen Choo 5391e94813 branch: remove negative exit code
Replace an instance of "exit(-1)" with "exit(1)". We don't use negative
exit codes - they are misleading because Unix machines will coerce them
to 8-bit unsigned values, losing the sign.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 16:45:05 -07:00
Neeraj Singh c4e707f858 object-file: pass filename to fsync_or_die
If we die while trying to fsync a loose object file, pass the actual
filename we're trying to sync. This is likely to be more helpful for a
user trying to diagnose the cause of the failure than the former
'loose object file' string. It also sidesteps any concerns about
translating the die message differently for loose objects versus
something else that has a real path.

Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Neeraj Singh <neerajsi@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 14:46:47 -07:00
Neeraj Singh f12f3b9807 core.fsyncmethod: correctly camel-case warning message
The warning for an unrecognized fsyncMethod was not
camel-cased.

Reported-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Neeraj Singh <neerajsi@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 14:46:08 -07:00
Glen Choo ac59c742de branch --set-upstream-to: be consistent when advising
"git branch --set-upstream-to" behaves differently when advice is
enabled/disabled:

|                 | error prefix | exit code |
|-----------------+--------------+-----------|
| advice enabled  | error:       |         1 |
| advice disabled | fatal:       |       128 |

Make both cases consistent by using die_message() when advice is
enabled (this was first proposed in [1]).

[1] https://lore.kernel.org/git/211210.86ee6ldwlc.gmgdl@evledraar.gmail.com

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 14:15:54 -07:00
Glen Choo cfbda6ba6b branch: give submodule updating advice before exit
Fix a bug where "hint:" was printed _before_ "fatal:" (instead of the
other way around).

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 13:40:00 -07:00
Glen Choo 75388bf5b4 branch: support more tracking modes when recursing
"git branch --recurse-submodules" does not propagate "--track=inherit"
or "--no-track" to submodules, which causes submodule branches to use
the wrong tracking mode [1]. To fix this, pass the correct options to
the "submodule--helper create-branch" child process and test for it.

While we are refactoring the same code, replace "--track" with the
synonymous, but more consistent-looking "--track=direct" option
(introduced at the same time as "--track=inherit", d3115660b4 (branch:
add flags and config to inherit tracking, 2021-12-20)).

[1] This bug is partially a timing issue: "branch --recurse-submodules"
 was introduced around the same time as "--track=inherit", and even
 though I rebased "branch --recurse-submodules" on top of that, I had
 neglected to support the new tracking mode. Omitting "--no-track"
 was just a plain old mistake, though.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 13:40:00 -07:00
Neeraj Singh 9a4987677d trace2: add stats for fsync operations
Add some global trace2 statistics for the number of fsyncs performed
during the lifetime of a Git process.

These stats are printed as part of trace2_cmd_exit_fl, which is
presumably where we might want to print any other cross-cutting
statistics.

Signed-off-by: Neeraj Singh <neerajsi@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-30 11:15:55 -07:00
Neeraj Singh e5ec440c98 core.fsync: fix incorrect expression for default configuration
Commit b9f5d035 (core.fsync: documentation and user-friendly
aggregate options, 2022-03-15) introduced an incorrect value for
FSYNC_COMPONENTS_DEFAULT. We need an AND-NOT rather than OR-NOT.

Signed-off-by: Neeraj Singh <neerajsi@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-29 16:04:16 -07:00
Junio C Hamano 805e0a6808 The 16th batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-29 12:22:03 -07:00
Junio C Hamano f818536749 Merge branch 'jc/rebase-detach-fix'
"git rebase $base $non_branch_commit", when $base is an ancestor or
the $non_branch_commit, modified the current branch, which has been
corrected.

* jc/rebase-detach-fix:
  rebase: set REF_HEAD_DETACH in checkout_up_to_date()
  rebase: use test_commit helper in setup
2022-03-29 12:22:03 -07:00
Junio C Hamano 5fe35fcc79 Merge branch 'jt/reset-grafts-when-resetting-shallow'
When "shallow" information is updated, we forgot to update the
in-core equivalent, which has been corrected.

* jt/reset-grafts-when-resetting-shallow:
  shallow: reset commit grafts when shallow is reset
2022-03-29 12:22:03 -07:00
Junio C Hamano d62966735d Merge branch 'vd/cache-bottom-fix'
Correct a bug in unpack-trees introduced earlier.

* vd/cache-bottom-fix:
  Revert "unpack-trees: improve performance of next_cache_entry"
  unpack-trees: increment cache_bottom for sparse directories
  t1092: add sparse directory before cone in test repo
2022-03-29 12:22:03 -07:00
Junio C Hamano 3d8046a820 Merge branch 'ab/refs-various-fixes'
Code clean-up.

* ab/refs-various-fixes:
  refs debug: add a wrapper for "read_symbolic_ref"
  packed-backend: remove stub BUG(...) functions
  misc *.c: use designated initializers for struct assignments
  refs: use designated initializers for "struct ref_iterator_vtable"
  refs: use designated initializers for "struct ref_storage_be"
2022-03-29 12:22:02 -07:00
Des Preston 2e2c0be51e worktree: include repair cmd in usage
The worktree repair command was not added to the usage menu for the
worktree command. This commit adds the usage of 'worktree repair'
according to the existing docs.

Signed-off-by: Des Preston <despreston@gmail.com>
Acked-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-29 12:02:21 -07:00
Victoria Dye b7f9130a06 mv: refresh stat info for moved entry
Update the stat info of the moved index entry in 'rename_index_entry_at()'
if the entry is up-to-date with the index. Internally, 'git mv' uses
'rename_index_entry_at()' to move the source index entry to the destination.
However, it directly copies the stat info of the original cache entry, which
will not reflect the 'ctime' of the file renaming operation that happened as
part of the move. If a file is otherwise up-to-date with the index, that
difference in 'ctime' will make the entry appear out-of-date until the next
index-refreshing operation (e.g., 'git status').

Some commands, such as 'git reset', use the cached stat information to
determine whether a file is up-to-date; if this information is incorrect,
the command will fail when it should pass. In order to ensure a moved entry
is evaluated as 'up-to-date' when appropriate, refresh the destination index
entry's stat info in 'git mv' if and only if the file is up-to-date.

Note that the test added in 't7001-mv.sh' requires a "sleep 1" to ensure the
'ctime' of the file creation will be definitively older than the 'ctime' of
the renamed file in 'git mv'.

Reported-by: Maximilian Reichel <reichemn@icloud.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-29 09:45:02 -07:00
SZEDER Gábor 840344db75 reflog: fix 'show' subcommand's argv
cmd_reflog() invokes parse_options() with PARSE_OPT_KEEP_ARGV0, but it
doesn't account for the retained argv[0] before invoking
cmd_reflog_show() to handle the 'git reflog show' subcommand.
Consequently, cmd_reflog_show() always gets an 'argv' array starting
with elements argv[0]="reflog" and argv[1]="show".

Strip the name of the git command from the 'argv' array before passing
it to the function handling the 'show' subcommand.

There is no user-visible bug here, because cmd_reflog_show() doesn't
have any options or parameters of its own.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 15:45:46 -07:00
Ævar Arnfjörð Bjarmason 33665d98e6 reftable: make assignments portable to AIX xlc v12.01
Change the assignment syntax introduced in 66c0dabab5 (reftable: make
reftable_record a tagged union, 2022-01-20) to be portable to AIX xlc
v12.1:

    avar@gcc111:[/home/avar]xlc -qversion
    IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)
    Version: 12.01.0000.0000

The error emitted before this was e.g.:

    "reftable/generic.c", line 133.26: 1506-196 (S) Initialization
    between types "char*" and "struct reftable_ref_record" is not
    allowed.

The syntax in the pre-image is supported by e.g. xlc 13.01 on a newer
AIX version:

    avar@gcc119:[/home/avar]xlc -qversion
    IBM XL C/C++ for AIX, V13.1.3 (5725-C72, 5765-J07)
    Version: 13.01.0003.0006

But as we've otherwise supported this compiler let's not break it
entirely if it's easy to work around it.

Suggested-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 13:58:10 -07:00
Robert Coup 4963d3e41f docs: mention --refetch fetch option
Document it for partial clones as a means to apply a new filter, and
reference it from the remote.<name>.partialclonefilter config parameter.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:53 -07:00
Robert Coup 7390f05a3c fetch: after refetch, encourage auto gc repacking
After invoking `fetch --refetch`, the object db will likely contain many
duplicate objects. If auto-maintenance is enabled, invoke it with
appropriate settings to encourage repacking/consolidation.

* gc.autoPackLimit: unless this is set to 0 (disabled), override the
  value to 1 to force pack consolidation.
* maintenance.incremental-repack.auto: unless this is set to 0, override
  the value to -1 to force incremental repacking.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:53 -07:00
Robert Coup 011b775727 t5615-partial-clone: add test for fetch --refetch
Add a test for doing a refetch to apply a changed partial clone filter
under protocol v0 and v2.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:52 -07:00
Robert Coup 3c7bab06e1 fetch: add --refetch option
Teach fetch and transports the --refetch option to force a full fetch
without negotiating common commits with the remote. Use when applying a
new partial clone filter to refetch all matching objects.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:52 -07:00
Robert Coup 869a0eb4eb builtin/fetch-pack: add --refetch option
Add a refetch option to fetch-pack to force a full fetch. Use when
applying a new partial clone filter to refetch all matching objects.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:52 -07:00
Robert Coup 4dfd0925cb fetch-pack: add refetch
Allow a "refetch" where the contents of the local object store are
ignored and a full fetch is performed, not attempting to find or
negotiate common commits with the remote.

A key use case is to apply a new partial clone blob/tree filter and
refetch all the associated matching content, which would otherwise not
be transferred when the commit objects are already present locally.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:52 -07:00
Robert Coup 1836836593 fetch-negotiator: add specific noop initializer
Add a specific initializer for the noop fetch negotiator. This is
introduced to support allowing partial clones to skip commit negotiation
when performing a "refetch".

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:52 -07:00
Ævar Arnfjörð Bjarmason 5cb28270a1 pack-objects: lazily set up "struct rev_info", don't leak
In the preceding [1] (pack-objects: move revs out of
get_object_list(), 2022-03-22) the "repo_init_revisions()" was moved
to cmd_pack_objects() so that it unconditionally took place for all
invocations of "git pack-objects".

We'd thus start leaking memory, which is easily reproduced in
e.g. git.git by feeding e83c516331 (Initial revision of "git", the
information manager from hell, 2005-04-07) to "git pack-objects";

    $ echo e83c516331 | ./git pack-objects initial
    [...]
	==19130==ERROR: LeakSanitizer: detected memory leaks

	Direct leak of 7120 byte(s) in 1 object(s) allocated from:
	    #0 0x455308 in __interceptor_malloc (/home/avar/g/git/git+0x455308)
	    #1 0x75b399 in do_xmalloc /home/avar/g/git/wrapper.c:41:8
	    #2 0x75b356 in xmalloc /home/avar/g/git/wrapper.c:62:9
	    #3 0x5d7609 in prep_parse_options /home/avar/g/git/diff.c:5647:2
	    #4 0x5d415a in repo_diff_setup /home/avar/g/git/diff.c:4621:2
	    #5 0x6dffbb in repo_init_revisions /home/avar/g/git/revision.c:1853:2
	    #6 0x4f599d in cmd_pack_objects /home/avar/g/git/builtin/pack-objects.c:3980:2
	    #7 0x4592ca in run_builtin /home/avar/g/git/git.c:465:11
	    #8 0x457d81 in handle_builtin /home/avar/g/git/git.c:718:3
	    #9 0x458ca5 in run_argv /home/avar/g/git/git.c:785:4
	    #10 0x457b40 in cmd_main /home/avar/g/git/git.c:916:19
	    #11 0x562259 in main /home/avar/g/git/common-main.c:56:11
	    #12 0x7fce792ac7ec in __libc_start_main csu/../csu/libc-start.c:332:16
	    #13 0x4300f9 in _start (/home/avar/g/git/git+0x4300f9)

	SUMMARY: LeakSanitizer: 7120 byte(s) leaked in 1 allocation(s).
	Aborted

Narrowly fixing that commit would have been easy, just add call
repo_init_revisions() right before get_object_list(), which is
effectively what was done before that commit.

But an unstated constraint when setting it up early is that it was
needed for the subsequent [2] (pack-objects: parse --filter directly
into revs.filter, 2022-03-22), i.e. we might have a --filter
command-line option, and need to either have the "struct rev_info"
setup when we encounter that option, or later.

Let's just change the control flow so that we'll instead set up the
"struct rev_info" only when we need it. Doing so leads to a bit more
verbosity, but it's a lot clearer what we're doing and why.

An earlier version of this commit[3] went behind
opt_parse_list_objects_filter()'s back by faking up a "struct option"
before calling it. Let's avoid that and instead create a blessed API
for this pattern.

We could furthermore combine the two get_object_list() invocations
here by having repo_init_revisions() invoked on &pfd.revs, but I think
clearly separating the two makes the flow clearer. Likewise
redundantly but explicitly (i.e. redundant v.s. a "{ 0 }") "0" to
"have_revs" early in cmd_pack_objects().

While we're at it add parentheses around the arguments to the OPT_*
macros in in list-objects-filter-options.h, as we need to change those
lines anyway. It doesn't matter in this case, but is good general
practice.

1. https://lore.kernel.org/git/619b757d98465dbc4995bdc11a5282fbfcbd3daa.1647970119.git.gitgitgadget@gmail.com
2. https://lore.kernel.org/git/97de926904988b89b5663bd4c59c011a1723a8f5.1647970119.git.gitgitgadget@gmail.com
3. https://lore.kernel.org/git/patch-1.1-193534b0f07-20220325T121715Z-avarab@gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 09:57:21 -07:00
Junio C Hamano abf474a5dd The 15th batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-25 16:38:25 -07:00