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19346 commits

Author SHA1 Message Date
Ævar Arnfjörð Bjarmason
bbfbcd25b3 test-lib: have --immediate emit valid TAP on failure
Change the "--immediate" option so that it emits valid TAP on
failure. Before this it would omit the required plan at the end,
e.g. under SANITIZE=leak we'd show a "No plan found in TAP output"
error from "prove":

    $ prove t0006-date.sh ::  --immediate
    t0006-date.sh .. Dubious, test returned 1 (wstat 256, 0x100)
    Failed 1/22 subtests

    Test Summary Report
    -------------------
    t0006-date.sh (Wstat: 256 Tests: 22 Failed: 1)
      Failed test:  22
      Non-zero exit status: 1
      Parse errors: No plan found in TAP output
    Files=1, Tests=22,  0 wallclock secs ( 0.02 usr  0.01 sys +  0.18 cusr  0.06 csys =  0.27 CPU)
    Result: FAIL

Now we'll emit output that doesn't result in TAP parsing failures:

    $ prove t0006-date.sh ::  --immediate
    t0006-date.sh .. Dubious, test returned 1 (wstat 256, 0x100)
    Failed 1/22 subtests

    Test Summary Report
    -------------------
    t0006-date.sh (Wstat: 256 Tests: 22 Failed: 1)
      Failed test:  22
      Non-zero exit status: 1
    Files=1, Tests=22,  0 wallclock secs ( 0.02 usr  0.00 sys +  0.19 cusr  0.05 csys =  0.26 CPU)
    Result: FAIL

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-24 14:47:02 -07:00
Junio C Hamano
361c2566c0 Merge branch 'ab/plug-random-leaks'
Double-free fix for a recently merged topic.

* ab/plug-random-leaks:
  diff.c: fix a double-free regression in a18d66cefb
  tests: demonstrate "show --word-diff --color-moved" regression
2022-03-23 14:09:31 -07:00
Junio C Hamano
889860e1ad Merge branch 'jc/cat-file-batch-default-format-optim'
Optimize away strbuf_expand() call with a hardcoded formatting logic
specific for the default format in the --batch and --batch-check
options of "git cat-file".

* jc/cat-file-batch-default-format-optim:
  cat-file: skip expanding default format
2022-03-23 14:09:31 -07:00
Junio C Hamano
8faa322315 Merge branch 'ac/test-lazy-fetch'
A new test to ensure a lazy fetching is not triggered when it
should not be.

* ac/test-lazy-fetch:
  partial-clone: add a partial-clone test case
2022-03-23 14:09:31 -07:00
Junio C Hamano
bfce3e7b92 Merge branch 'ps/repack-with-server-info'
"git repack" learned a new configuration to disable triggering of
age-old "update-server-info" command, which is rarely useful these
days.

* ps/repack-with-server-info:
  repack: add config to skip updating server info
  repack: refactor to avoid double-negation of update-server-info
2022-03-23 14:09:30 -07:00
Junio C Hamano
7f7d1ad3e0 Merge branch 'ab/reflog-prep-fix'
Regression fix.

* ab/reflog-prep-fix:
  reflog: don't be noisy on empty reflogs
2022-03-23 14:09:30 -07:00
Junio C Hamano
d674bf5570 Merge branch 'ep/remove-duplicated-includes'
Code clean-up.

* ep/remove-duplicated-includes:
  attr.h: remove duplicate struct definition
  t/helper/test-run-command.c: delete duplicate include
  builtin/stash.c: delete duplicate include
  builtin/sparse-checkout.c: delete duplicate include
  builtin/gc.c: delete duplicate include
  attr.c: delete duplicate include
2022-03-23 14:09:30 -07:00
Junio C Hamano
4eb66787b0 Merge branch 'ep/t6423-modernize'
Code clean-up.

* ep/t6423-modernize:
  t6423-merge-rename-directories.sh: use the $(...) construct
2022-03-23 14:09:29 -07:00
Junio C Hamano
94cb657f22 Merge branch 'jk/name-rev-w-genno'
"git name-rev" learned to use the generation numbers when setting
the lower bound of searching commits used to explain the revision,
when available, instead of committer time.

* jk/name-rev-w-genno:
  name-rev: use generation numbers if available
2022-03-23 14:09:29 -07:00
Junio C Hamano
3ece3cb865 Merge branch 'jd/userdiff-kotlin'
A new built-in userdiff driver for kotlin.

* jd/userdiff-kotlin:
  userdiff: add builtin diff driver for kotlin language.
2022-03-23 14:09:29 -07:00
Junio C Hamano
7649bfbaa2 Merge branch 'gc/submodule-update-part1'
Rewrite of "git submodule update" in C (early part).

* gc/submodule-update-part1:
  submodule--helper update-clone: check for --filter and --init
  submodule update: add tests for --filter
  submodule--helper: remove ensure-core-worktree
  submodule--helper update-clone: learn --init
  submodule--helper: allow setting superprefix for init_submodule()
  submodule--helper: refactor get_submodule_displaypath()
  submodule--helper run-update-procedure: learn --remote
  submodule--helper: don't use bitfield indirection for parse_options()
  submodule--helper: get remote names from any repository
  submodule--helper run-update-procedure: remove --suboid
  submodule--helper: reorganize code for sh to C conversion
  submodule--helper: remove update-module-mode
  submodule tests: test for init and update failure output
2022-03-23 14:09:29 -07:00
Junio C Hamano
bc3838b310 Merge branch 'jy/gitweb-no-need-for-meta'
Remove unneeded <meta http-equiv=content-type...> from gitweb
output.

* jy/gitweb-no-need-for-meta:
  gitweb: remove invalid http-equiv="content-type"
  comment: fix typo
2022-03-21 15:14:24 -07:00
Junio C Hamano
7391ecd338 Merge branch 'ds/partial-bundles'
Bundle file format gets extended to allow a partial bundle,
filtered by similar criteria you would give when making a
partial/lazy clone.

* ds/partial-bundles:
  clone: fail gracefully when cloning filtered bundle
  bundle: unbundle promisor packs
  bundle: create filtered bundles
  rev-list: move --filter parsing into revision.c
  bundle: parse filter capability
  list-objects: handle NULL function pointers
  MyFirstObjectWalk: update recommended usage
  list-objects: consolidate traverse_commit_list[_filtered]
  pack-bitmap: drop filter in prepare_bitmap_walk()
  pack-objects: use rev.filter when possible
  revision: put object filter into struct rev_info
  list-objects-filter-options: create copy helper
  index-pack: document and test the --promisor option
2022-03-21 15:14:24 -07:00
Junio C Hamano
b6763af74b Merge branch 'ep/test-malloc-check-with-glibc-2.34'
The method to trigger malloc check used in our tests no longer work
with newer versions of glibc.

* ep/test-malloc-check-with-glibc-2.34:
  test-lib: declare local variables as local
  test-lib.sh: Use GLIBC_TUNABLES instead of MALLOC_CHECK_ on glibc >= 2.34
2022-03-21 15:14:23 -07:00
Junio C Hamano
964a856cbe Merge branch 'sm/no-git-in-upstream-of-pipe-in-tests'
Test fixes.

* sm/no-git-in-upstream-of-pipe-in-tests:
  t0030-t0050: avoid pipes with Git on LHS
  t0001-t0028: avoid pipes with Git on LHS
  t0003: avoid pipes with Git on LHS
2022-03-21 15:14:23 -07:00
Ævar Arnfjörð Bjarmason
77e56d55ba diff.c: fix a double-free regression in a18d66cefb
My a18d66cefb (diff.c: free "buf" in diff_words_flush(), 2022-03-04)
has what it retrospect is a rather obvious bug (I don't know what I
was thinking, if it all): We use the "emitted_symbols" allocation in
append_emitted_diff_symbol() N times, but starting with a18d66cefb
we'd free it after its first use!

The correct way to free this data would have been to add the free() to
the existing free_diff_words_data() function, so let's do that. The
"ecbdata->diff_words->opt->emitted_symbols" might be NULL, so let's
add a trivial free_emitted_diff_symbols() helper next to the function
that appends to it.

This fixes the "no effect on show from" leak tested for in the
preceding commit. Perhaps confusingly this change will skip that test
under SANITIZE=leak, but otherwise opt-in the
"t4015-diff-whitespace.sh" test.

The reason is that a18d66cefb "fixed" the leak in the preceding "no
effect on diff" test, but for the first call to diff_words_flush() the
"wol->buf" would be NULL, so we wouldn't double-free (and
SANITIZE=address would see nothing amiss). With this change we'll
still pass that test, showing that we've also fixed leaks on this
codepath.

We then have to skip the new "no effect on show" test because it
happens to trip over an unrelated memory leak (in revision.c). The
same goes for "move detection with submodules". Both of them pass with
SANITIZE=address though, which would error on the "no effect on show"
test before this change.

Reported-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-17 08:49:13 -07:00
Michael J Gruber
b59ec03cb5 tests: demonstrate "show --word-diff --color-moved" regression
Add a failing test which demonstrates a regression in
a18d66cefb ("diff.c: free "buf" in diff_words_flush()", 2022-03-04),
the regression is discussed in detail in the subsequent commit. With
it running `git show --word-diff --color-moved` with SANITIZE=address
would emit:

	==31191==ERROR: AddressSanitizer: attempting double-free on 0x617000021100 in thread T0:
	    #0 0x49f0a2 in free (git+0x49f0a2)
	    #1 0x9b0e4d in diff_words_flush diff.c:2153:3
	    #2 0x9aed5d in fn_out_consume diff.c:2354:3
	    #3 0xe092ab in consume_one xdiff-interface.c:43:9
	    #4 0xe072eb in xdiff_outf xdiff-interface.c:76:10
	    #5 0xec7014 in xdl_emit_diffrec xdiff/xutils.c:53:6
	    [...]

	0x617000021100 is located 0 bytes inside of 768-byte region [0x617000021100,0x617000021400)
	freed by thread T0 here:
	    #0 0x49f0a2 in free (git+0x49f0a2)
	    [...(same stacktrace)...]

	previously allocated by thread T0 here:
	    #0 0x49f603 in __interceptor_realloc (git+0x49f603)
	    #1 0xde4da4 in xrealloc wrapper.c:126:8
	    #2 0x995dc5 in append_emitted_diff_symbol diff.c:794:2
	    #3 0x96c44a in emit_diff_symbol diff.c:1527:3
	    [...]

This was not caught by the test suite because we test `diff
--word-diff --color-moved` only so far.

Therefore, add a test for `show`, too.

Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-17 08:49:07 -07:00
Junio C Hamano
38bbb9e990 Merge branch 'ab/string-list-count-in-size-t'
Count string_list items in size_t, not "unsigned int".

* ab/string-list-count-in-size-t:
  string-list API: change "nr" and "alloc" to "size_t"
  gettext API users: don't explicitly cast ngettext()'s "n"
2022-03-16 17:53:09 -07:00
Junio C Hamano
ea05fd5fbf Merge branch 'ab/keep-git-exit-codes-in-tests'
Updates tests around the use of "test $(git cmd) = constant".

* ab/keep-git-exit-codes-in-tests:
  rev-list simplify tests: don't ignore "git" exit code
  checkout tests: don't ignore "git <cmd>" exit code
  apply tests: don't ignore "git ls-files" exit code, drop sub-shell
  gettext tests: don't ignore "test-tool regex" exit code
  rev-list tests: don't hide abort() in "test_expect_failure"
  diff tests: don't ignore "git rev-list" exit code
  notes tests: don't ignore "git" exit code
  rev-parse tests: don't ignore "git reflog" exit code
  merge tests: use "test_must_fail" instead of ad-hoc pattern
  apply tests: use "test_must_fail" instead of ad-hoc pattern
  diff tests: don't ignore "git diff" exit code in "read" loop
  diff tests: don't ignore "git diff" exit code
  read-tree tests: check "diff-files" exit code on failure
  tests: use "test_stdout_line_count", not "test $(git [...] | wc -l)"
  tests: change some 'test $(git) = "x"' to test_cmp
2022-03-16 17:53:09 -07:00
Junio C Hamano
0b01c0a814 Merge branch 'tk/t7063-chmtime-dirs-too'
Teach "test-chmtime" to work on a directory and use it to avoid
having to wait for a second in a few places in tests.

* tk/t7063-chmtime-dirs-too:
  t7063: mtime-mangling instead of delays in untracked cache testing
  t/helper/test-chmtime: update mingw to support chmtime on directories
2022-03-16 17:53:09 -07:00
Junio C Hamano
a54cc523ad Merge branch 'ds/commit-graph-gen-v2-fixes'
Fixes to the way generation number v2 in the commit-graph files are
(not) handled.

* ds/commit-graph-gen-v2-fixes:
  commit-graph: declare bankruptcy on GDAT chunks
  commit-graph: fix generation number v2 overflow values
  commit-graph: start parsing generation v2 (again)
  commit-graph: fix ordering bug in generation numbers
  t5318: extract helpers to lib-commit-graph.sh
  test-read-graph: include extra post-parse info
2022-03-16 17:53:09 -07:00
Junio C Hamano
a2fc9c3c40 Merge branch 'jc/stash-drop'
"git stash drop" is reimplemented as an internal call to
reflog_delete() function, instead of invoking "git reflog delete"
via run_command() API.

* jc/stash-drop:
  stash: call reflog_delete() in reflog.c
  reflog: libify delete reflog function and helpers
  stash: add tests to ensure reflog --rewrite --updatref behavior
2022-03-16 17:53:08 -07:00
Junio C Hamano
47c52b2dad Merge branch 'tb/rename-remote-progress'
"git remote rename A B", depending on the number of remote-tracking
refs involved, takes long time renaming them.  The command has been
taught to show progress bar while making the user wait.

* tb/rename-remote-progress:
  builtin/remote.c: show progress when renaming remote references
  builtin/remote.c: parse options in 'rename'
2022-03-16 17:53:08 -07:00
Junio C Hamano
190f9bf62a Merge branch 'vd/sparse-read-tree'
"git read-tree" has been made to be aware of the sparse-index
feature.

* vd/sparse-read-tree:
  read-tree: make three-way merge sparse-aware
  read-tree: make two-way merge sparse-aware
  read-tree: narrow scope of index expansion for '--prefix'
  read-tree: integrate with sparse index
  read-tree: expand sparse checkout test coverage
  read-tree: explicitly disallow prefixes with a leading '/'
  status: fix nested sparse directory diff in sparse index
  sparse-index: prevent repo root from becoming sparse
2022-03-16 17:53:08 -07:00
Junio C Hamano
47e0380289 Merge branch 'tk/empty-untracked-cache'
The untracked cache newly computed weren't written back to the
on-disk index file when there is no other change to the index,
which has been corrected.

* tk/empty-untracked-cache:
  untracked-cache: write index when populating empty untracked cache
  t7519: populate untracked cache before test
  t7519: avoid file to index mtime race for untracked cache
2022-03-16 17:53:07 -07:00
Junio C Hamano
5b9c98b491 Merge branch 'ab/grep-patterntype'
Test fix-up for a topic already in master.

* ab/grep-patterntype:
  log tests: fix "abort tests early" regression in ff37a60c36
2022-03-16 17:53:07 -07:00
Abhradeep Chakraborty
ab3892e48f partial-clone: add a partial-clone test case
In a blobless-cloned repo, `git log --follow -- <path>` (`<path>` have
an exact OID rename) shouldn't download blob of the file from where the
new file is renamed.

Add a test case to verify it.

Signed-off-by: Abhradeep Chakraborty <chakrabortyabhradeep79@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-16 11:11:07 -07:00
John Cai
eb54a3391b cat-file: skip expanding default format
When format is passed into --batch, --batch-check, --batch-command,
the format gets expanded. When nothing is passed in, the default format
is set and the expand_format() gets called.

We can save on these cycles by hardcoding how to print the
information when nothing is passed as the format, or when the default
format is passed. There is no need for the fully expanded format with
the default. Since batch_object_write() happens on every object provided
in batch mode, we get a nice performance improvement.

git rev-list --all > /tmp/all-obj.txt

git cat-file --batch-check </tmp/all-obj.txt

with HEAD^:

Time (mean ± σ): 57.6 ms ± 1.7 ms [User: 51.5 ms, System: 6.2 ms]
Range (min … max): 54.6 ms … 64.7 ms 50 runs

with HEAD:

Time (mean ± σ): 49.8 ms ± 1.7 ms [User: 42.6 ms, System: 7.3 ms]
Range (min … max): 46.9 ms … 55.9 ms 56 runs

If nothing is provided as a format argument, or if the default format is
passed, skip expanding of the format and print the object info with a
default format.

See https://lore.kernel.org/git/87eecf8ork.fsf@evledraar.gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-15 10:15:32 -07:00
Patrick Steinhardt
a2565c48e4 repack: add config to skip updating server info
By default, git-repack(1) will update server info that is required by
the dumb HTTP transport. This can be skipped by passing the `-n` flag,
but what we're noticably missing is a config option to permanently
disable updating this information.

Add a new option "repack.updateServerInfo" which can be used to disable
the logic. Most hosting providers have turned off the dumb HTTP protocol
anyway, and on the client-side it woudln't typically be useful either.
Giving a persistent way to disable this feature thus makes quite some
sense to avoid wasting compute cycles and storage.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-14 22:25:13 +00:00
Patrick Steinhardt
64a6151da7 repack: refactor to avoid double-negation of update-server-info
By default, git-repack(1) runs `update_server_info()` to generate info
required for the dumb HTTP protocol. This can be disabled via the `-n`
flag, which then sets the `no_update_server_info` flag. Further down the
code this leads to some double-negation logic, which is about to become
more confusing as we're about to add a new config which allows the user
to permanently disable generation of the info.

Refactor the code to avoid the double-negation and add some tests which
verify that the flag continues to work as expected.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-14 22:24:59 +00:00
Junio C Hamano
386f806c7d Merge branch 'ps/fetch-atomic-fixup'
Test simplification.

* ps/fetch-atomic-fixup:
  t5503: simplify setup of test which exercises failure of backfill
2022-03-13 22:56:17 +00:00
Junio C Hamano
21b839e606 Merge branch 'fs/gpgsm-update'
Newer version of GPGSM changed its output in a backward
incompatible way to break our code that parses its output.  It also
added more processes our tests need to kill when cleaning up.
Adjustments have been made to accommodate these changes.

* fs/gpgsm-update:
  t/lib-gpg: kill all gpg components, not just gpg-agent
  t/lib-gpg: reload gpg components after updating trustlist
  gpg-interface/gpgsm: fix for v2.3
2022-03-13 22:56:17 +00:00
Junio C Hamano
f62106d750 Merge branch 'ab/make-optim-noop'
Makefile refactoring with a bit of suffixes rule stripping to
optimize the runtime overhead.

* ab/make-optim-noop:
  Makefiles: add and use wildcard "mkdir -p" template
  Makefile: add "$(QUIET)" boilerplate to shared.mak
  Makefile: move $(comma), $(empty) and $(space) to shared.mak
  Makefile: move ".SUFFIXES" rule to shared.mak
  Makefile: define $(LIB_H) in terms of $(FIND_SOURCE_FILES)
  Makefile: disable GNU make built-in wildcard rules
  Makefiles: add "shared.mak", move ".DELETE_ON_ERROR" to it
  scalar Makefile: use "The default target of..." pattern
2022-03-13 22:56:17 +00:00
Junio C Hamano
851d2f0ab1 Merge branch 'ps/fetch-atomic'
"git fetch" can make two separate fetches, but ref updates coming
from them were in two separate ref transactions under "--atomic",
which has been corrected.

* ps/fetch-atomic:
  fetch: make `--atomic` flag cover pruning of refs
  fetch: make `--atomic` flag cover backfilling of tags
  refs: add interface to iterate over queued transactional updates
  fetch: report errors when backfilling tags fails
  fetch: control lifecycle of FETCH_HEAD in a single place
  fetch: backfill tags before setting upstream
  fetch: increase test coverage of fetches
2022-03-13 22:56:16 +00:00
Elia Pinto
12e3b084de t/helper/test-run-command.c: delete duplicate include
parse-options.h is included more than once.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-13 22:23:17 +00:00
Elia Pinto
c614beb933 t6423-merge-rename-directories.sh: use the $(...) construct
The Git CodingGuidelines prefer the $(...) construct for command
substitution instead of using the backquotes `...`.

The backquoted form is the traditional method for command
substitution, and is supported by POSIX.  However, all but the
simplest uses become complicated quickly.  In particular, embedded
command substitutions and/or the use of double quotes require
careful escaping with the backslash character.

The patch was generated by:

for _f in $(find . -name "*.sh")
do
	shellcheck -i SC2006 -f diff ${_f} | ifne git apply -p2
done

and then carefully proof-read.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-13 19:03:32 +00:00
Jacob Keller
2e8ea40fe3 name-rev: use generation numbers if available
If a commit in a sequence of linear history has a non-monotonically
increasing commit timestamp, git name-rev might not properly name the
commit.

This occurs because name-rev uses a heuristic of the commit date to
avoid searching down tags which lead to commits that are older than the
named commit. This is intended to avoid work on larger repositories.

This heuristic impacts git name-rev, and by extension git describe
--contains which is built on top of name-rev.

Further more, if --all or --annotate-stdin is used, the heuristic is not
enabled because the full history has to be analyzed anyways. This
results in some confusion if a user sees that --annotate-stdin works but
a normal name-rev does not.

If the repository has a commit graph, we can use the generation numbers
instead of using the commit dates. This is essentially the same check
except that generation numbers make it exact, where the commit date
heuristic could be incorrect due to clock errors.

Since we're extending the notion of cutoff to more than one variable,
create a series of functions for setting and checking the cutoff. This
avoids duplication and moves access of the global cutoff and
generation_cutoff to as few functions as possible.

Add several test cases including a test that covers the new commitGraph
behavior, as well as tests for --all and --annotate-stdin with and
without commitGraphs.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-13 18:39:29 +00:00
Ævar Arnfjörð Bjarmason
57be9c6dee reflog: don't be noisy on empty reflogs
Fix a regression in my daf1d8285e (reflog expire: don't use
lookup_commit_reference_gently(), 2021-12-22), in changing from
lookup_commit_reference_gently() to lookup_commit() we stopped trying
to call deref_tag() and parse_object() on the provided OID, but we
also started returning non-NULL for the null_oid().

As a result we'd emit an error() via mark_reachable() later in this
function as we tried to invoke parse_commit() on it.

Reported-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-13 18:37:08 +00:00
Jaydeep P Das
09188ed930 userdiff: add builtin diff driver for kotlin language.
The xfuncname pattern finds func/class declarations
in diffs to display as a hunk header. The word_regex
pattern finds individual tokens in Kotlin code to generate
appropriate diffs.

This patch adds xfuncname regex and word_regex for Kotlin
language.

Signed-off-by: Jaydeep P Das <jaydeepjd.8914@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-12 18:15:47 -08:00
Shubham Mishra
eed36fce38 t0030-t0050: avoid pipes with Git on LHS
Pipes ignore error codes of LHS command and thus we should not use
them with Git in tests. As an alternative, use a 'tmp' file to write
the Git output so we can test the exit code.

Signed-off-by: Shubham Mishra <shivam828787@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-12 16:22:04 -08:00
Shubham Mishra
9b6d1fc48a t0001-t0028: avoid pipes with Git on LHS
Pipes ignore error codes of LHS command and thus we should not use
them with Git in tests. As an alternative, use a 'tmp' file to write
the Git output so we can test the exit code.

Signed-off-by: Shubham Mishra <shivam828787@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-12 16:22:01 -08:00
Michael J Gruber
baedc59543 test-lib: declare local variables as local
131b94a10a ("test-lib.sh: Use GLIBC_TUNABLES instead of MALLOC_CHECK_ on
glibc >= 2.34", 2022-03-04) introduced "local" variables without
declaring them as such. This conflicts with their use in some tests (at
least when running them with dash), leading to test failures in:

t0006-date.sh
t2002-checkout-cache-u.sh
t3430-rebase-merges.sh
t4138-apply-ws-expansion.sh
t4124-apply-ws-rule.sh

Declare those variables as local to let the tests pass again.

Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-09 14:02:45 -08:00
Junio C Hamano
1f3c5f39e0 Merge branch 'ab/help-fixes'
Updates to how command line options to "git help" are handled.

* ab/help-fixes:
  help: don't print "\n" before single-section output
  help: add --no-[external-commands|aliases] for use with --all
  help: error if [-a|-g|-c] and [-i|-m|-w] are combined
  help: correct usage & behavior of "git help --all"
  help: note the option name on option incompatibility
  help.c: split up list_all_cmds_help() function
  help tests: test "git" and "git help [-a|-g] spacing
  help.c: use puts() instead of printf{,_ln}() for consistency
  help doc: add missing "]" to "[-a|--all]"
2022-03-09 13:38:24 -08:00
Junio C Hamano
d169d51504 Merge branch 'jc/cat-file-batch-commands'
"git cat-file" learns "--batch-command" mode, which is a more
flexible interface than the existing "--batch" or "--batch-check"
modes, to allow different kinds of inquiries made.

* jc/cat-file-batch-commands:
  cat-file: add --batch-command mode
  cat-file: add remove_timestamp helper
  cat-file: introduce batch_mode enum to replace print_contents
  cat-file: rename cmdmode to transform_mode
2022-03-09 13:38:24 -08:00
Junio C Hamano
82386b4496 Merge branch 'en/present-despite-skipped'
In sparse-checkouts, files mis-marked as missing from the working tree
could lead to later problems.  Such files were hard to discover, and
harder to correct.  Automatically detecting and correcting the marking
of such files has been added to avoid these problems.

* en/present-despite-skipped:
  repo_read_index: add config to expect files outside sparse patterns
  Accelerate clear_skip_worktree_from_present_files() by caching
  Update documentation related to sparsity and the skip-worktree bit
  repo_read_index: clear SKIP_WORKTREE bit from files present in worktree
  unpack-trees: fix accidental loss of user changes
  t1011: add testcase demonstrating accidental loss of user modifications
2022-03-09 13:38:23 -08:00
Derrick Stolee
86fdd94d72 clone: fail gracefully when cloning filtered bundle
Users can create a new repository using 'git clone <bundle-file>'. The
new "@filter" capability for bundles means that we can generate a bundle
that does not contain all reachable objects, even if the header has no
negative commit OIDs.

It is feasible to think that we could make a filtered bundle work with
the command

  git clone --filter=$filter --bare <bundle-file>

or possibly replacing --bare with --no-checkout. However, this requires
having some repository-global config that specifies the specified object
filter and notifies Git about the existence of promisor pack-files.
Without a remote, that is currently impossible.

As a stop-gap, parse the bundle header during 'git clone' and die() with
a helpful error message instead of the current behavior of failing due
to "missing objects".

Most of the existing logic for handling bundle clones actually happens
in fetch-pack.c, but that logic is the same as if the user specified
'git fetch <bundle>', so we want to avoid failing to fetch a filtered
bundle when in an existing repository that has the proper config set up
for at least one remote.

Carefully comment around the test that this is not the desired long-term
behavior of 'git clone' in this case, but instead that we need to do
more work before that is possible.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-09 10:25:28 -08:00
Derrick Stolee
4f39eb031a bundle: unbundle promisor packs
In order to have a valid pack-file after unbundling a bundle that has
the 'filter' capability, we need to generate a .promisor file. The
bundle does not promise _where_ the objects can be found, but we can
expect that these bundles will be unbundled in repositories with
appropriate promisor remotes that can find those missing objects.

Use the 'git index-pack --promisor=<message>' option to create this
.promisor file. Add "from-bundle" as the message to help anyone diagnose
issues with these promisor packs.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-09 10:25:28 -08:00
Derrick Stolee
f18b512bbb bundle: create filtered bundles
A previous change allowed Git to parse bundles with the 'filter'
capability. Now, teach Git to create bundles with this option.

Some rearranging of code is required to get the option parsing in the
correct spot. There are now two reasons why we might need capabilities
(a new hash algorithm or an object filter) so that is pulled out into a
place where we can check both at the same time.

The --filter option is parsed as part of setup_revisions(), but it
expected the --objects flag, too. That flag is somewhat implied by 'git
bundle' because it creates a pack-file walking objects, but there is
also a walk that walks the revision range expecting only commits. Make
this parsing work by setting 'revs.tree_objects' and 'revs.blob_objects'
before the call to setup_revisions().

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-09 10:25:28 -08:00
Ævar Arnfjörð Bjarmason
4f33a6345f list-objects: handle NULL function pointers
If a caller to traverse_commit_list() specifies the options for the
--objects flag but does not specify a show_object function pointer, the
result is a segfault. This is currently visible by running 'git bundle
create --objects HEAD'.

We could fix this problem by supplying a no-op callback in
builtin/bundle.c, but that only solves the problem for one builtin,
leaving this segfault open for other callers.

Replace all callers of the show_commit and show_object function pointers
in list-objects.c to call helper functions show_commit() and
show_object() which check that the given context has non-NULL functions
before passing the necessary data. One extra benefit is that it reduces
duplication due to passing ctx->show_data to every caller.

Test that this segfault no longer occurs for 'git bundle'.

Co-authored-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-09 10:25:27 -08:00
Derrick Stolee
1f52cdfacb index-pack: document and test the --promisor option
The --promisor option of 'git index-pack' was created in 88e2f9e
(introduce fetch-object: fetch one promisor object, 2017-12-05) but was
untested. It is currently unused within the Git codebase, but that will
change in an upcoming change to 'git bundle unbundle' when there is a
filter capability.

For now, add documentation about the option and add a test to ensure it
is working as expected.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-09 10:25:26 -08:00