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If we have braces on one arm of an if/else all of them should have it,
per the CodingGuidelines's "When there are multiple arms to a
conditional[...]" advice. This formatting change makes a subsequent
commit smaller.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak in the test-progress helper, and mark the
corresponding "t0500-progress-display.sh" test as being leak-free
under SANITIZE=leak. This fixes a leak added in 2bb74b53a4 (Test the
progress display, 2019-09-16).
My 48f68715b14 (tr2: stop leaking "thread_name" memory, 2021-08-27)
had fixed another memory leak in this test (as it did some trace2
testing).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git rev-list" learns to omit the "commit <object-name>" header
lines from the output with the `--no-commit-header` option.
* bc/rev-list-without-commit-line:
rev-list: add option for --pretty=format without header
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"git send-email" optimization.
* ab/send-email-optim:
perl: nano-optimize by replacing Cwd::cwd() with Cwd::getcwd()
send-email: move trivial config handling to Perl
perl: lazily load some common Git.pm setup code
send-email: lazily load modules for a big speedup
send-email: get rid of indirect object syntax
send-email: use function syntax instead of barewords
send-email: lazily shell out to "git var"
send-email: lazily load config for a big speedup
send-email: copy "config_regxp" into git-send-email.perl
send-email: refactor sendemail.smtpencryption config parsing
send-email: remove non-working support for "sendemail.smtpssl"
send-email tests: test for boolean variables without a value
send-email tests: support GIT_TEST_PERL_FATAL_WARNINGS=true
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Update the documentation not to assume users are of certain gender
and adds to guidelines to do so.
* ds/gender-neutral-doc:
*: fix typos
comments: avoid using the gender of our users
doc: avoid using the gender of other people
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Prepare the internals for lazily fetching objects in submodules
from their promisor remotes.
* jt/partial-clone-submodule-1:
promisor-remote: teach lazy-fetch in any repo
run-command: refactor subprocess env preparation
submodule: refrain from filtering GIT_CONFIG_COUNT
promisor-remote: support per-repository config
repository: move global r_f_p_c to repo struct
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Tiny test clean-up.
* dd/test-stdout-count-lines:
t6402: preserve git exit status code
t6400: preserve git ls-files exit status code
test-lib-functions: introduce test_stdout_line_count
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Test clean-up.
* hn/refs-test-cleanup:
t7509: avoid direct file access for writing CHERRY_PICK_HEAD
t1415: avoid direct filesystem access for writing refs
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Fill test gaps.
* ab/mktag-tests:
mktag tests: test fast-export
mktag tests: test for-each-ref
mktag tests: test update-ref and reachable fsck
mktag tests: test hash-object --literally and unreachable fsck
mktag tests: invert --no-strict test
mktag tests: parse out options in helper
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Fill test gaps.
* ab/show-branch-tests:
show-branch tests: add missing tests
show-branch: don't <COLOR></RESET> for space characters
show-branch tests: modernize test code
show-branch tests: rename the one "show-branch" test file
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Code recently added to support common ancestry negotiation during
"git push" did not sanity check its arguments carefully enough.
* ab/fetch-negotiate-segv-fix:
fetch: fix segfault in --negotiate-only without --negotiation-tip=*
fetch: document the --negotiate-only option
send-pack.c: move "no refs in common" abort earlier
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When rebuilding the multi-pack index file reusing an existing one,
we used to blindly trust the existing file and ended up carrying
corrupted data into the updated file, which has been corrected.
* tb/midx-use-checksum:
midx: report checksum mismatches during 'verify'
midx: don't reuse corrupt MIDXs when writing
commit-graph: rewrite to use checksum_valid()
csum-file: introduce checksum_valid()
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The merge code had funny interactions between content based rename
detection and directory rename detection.
* en/merge-dir-rename-corner-case-fix:
merge-recursive: handle rename-to-self case
merge-ort: ensure we consult df_conflict and path_conflicts
t6423: test directory renames causing rename-to-self
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Performance tweaks of "git merge -sort" around lazy fetching of objects.
* en/ort-perf-batch-13:
merge-ort: add prefetching for content merges
diffcore-rename: use a different prefetch for basename comparisons
diffcore-rename: allow different missing_object_cb functions
t6421: add tests checking for excessive object downloads during merge
promisor-remote: output trace2 statistics for number of objects fetched
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More fix-ups and optimization to "merge -sort".
* en/ort-perf-batch-12:
merge-ort: miscellaneous touch-ups
Fix various issues found in comments
diffcore-rename: avoid unnecessary strdup'ing in break_idx
merge-ort: replace string_list_df_name_compare with faster alternative
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"git grep --and -e foo" ought to have been diagnosed as an error
but instead segfaulted, which has been corrected.
* rs/grep-parser-fix:
grep: report missing left operand of --and
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Test fix.
* ab/pre-auto-gc-hook-test:
gc tests: add a test for the "pre-auto-gc" hook
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The "union" conflict resolution variant misbehaved when used with
binary merge driver.
* jk/union-merge-binary:
ll_union_merge(): rename path_unused parameter
ll_union_merge(): pass name labels to ll_xdl_merge()
ll_binary_merge(): handle XDL_MERGE_FAVOR_UNION
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Various updates to tests around "git describe"
* ab/describe-tests-fix:
describe tests: support -C in "check_describe"
describe tests: fix nested "test_expect_success" call
describe tests: don't rely on err.actual from "check_describe"
describe tests: refactor away from glob matching
describe tests: improve test for --work-tree & --dirty
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Rewrite the backend for "diff -G/-S" to use pcre2 engine when
available.
* ab/pickaxe-pcre2: (22 commits)
xdiff-interface: replace discard_hunk_line() with a flag
xdiff users: use designated initializers for out_line
pickaxe -G: don't special-case create/delete
pickaxe -G: terminate early on matching lines
xdiff-interface: allow early return from xdiff_emit_line_fn
xdiff-interface: prepare for allowing early return
pickaxe -S: slightly optimize contains()
pickaxe: rename variables in has_changes() for brevity
pickaxe -S: support content with NULs under --pickaxe-regex
pickaxe: assert that we must have a needle under -G or -S
pickaxe: refactor function selection in diffcore-pickaxe()
perf: add performance test for pickaxe
pickaxe/style: consolidate declarations and assignments
diff.h: move pickaxe fields together again
pickaxe: die when --find-object and --pickaxe-all are combined
pickaxe: die when -G and --pickaxe-regex are combined
pickaxe tests: add missing test for --no-pickaxe-regex being an error
pickaxe tests: test for -G, -S and --find-object incompatibility
pickaxe tests: add test for "log -S" not being a regex
pickaxe tests: add test for diffgrep_consume() internals
...
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Preliminary clean-up of tests before the main reftable changes
hits the codebase.
* hn/prep-tests-for-reftable: (22 commits)
t1415: set REFFILES for test specific to storage format
t4202: mark bogus head hash test with REFFILES
t7003: check reflog existence only for REFFILES
t7900: stop checking for loose refs
t1404: mark tests that muck with .git directly as REFFILES.
t2017: mark --orphan/logAllRefUpdates=false test as REFFILES
t1414: mark corruption test with REFFILES
t1407: require REFFILES for for_each_reflog test
test-lib: provide test prereq REFFILES
t5304: use "reflog expire --all" to clear the reflog
t5304: restyle: trim empty lines, drop ':' before >
t7003: use rev-parse rather than FS inspection
t5000: inspect HEAD using git-rev-parse
t5000: reformat indentation to the latest fashion
t1301: fix typo in error message
t1413: use tar to save and restore entire .git directory
t1401-symbolic-ref: avoid direct filesystem access
t1401: use tar to snapshot and restore repo state
t5601: read HEAD using rev-parse
t9300: check ref existence using test-helper rather than a file system check
...
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"git cat-file --batch-all-objects"" misbehaved when "--batch" is in
use and did not ask for certain object traits.
* zh/cat-file-batch-fix:
cat-file: merge two block into one
cat-file: handle trivial --batch format with --batch-all-objects
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In general, we encourage users to use plumbing commands, like git
rev-list, over porcelain commands, like git log, when scripting.
However, git rev-list has one glaring problem that prevents it from
being used in certain cases: when --pretty is used with a custom format,
it always prints out a line containing "commit" and the object ID. This
makes it unsuitable for many scripting needs, and forces users to use
git log instead.
While we can't change this behavior for backwards compatibility, we can
add an option to suppress this behavior, so let's do so, and call it
"--no-commit-header". Additionally, add the corresponding positive
option to switch it back on.
Note that this option doesn't affect the built-in formats, only custom
formats. This is exactly the same behavior as users already have from
git log and is what most users will be used to.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test code clean-up.
* ar/test-code-cleanup:
t: fix whitespace around &&
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Code clean-up.
* ab/cmd-foo-should-return:
builtins + test helpers: use return instead of exit() in cmd_*
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Output from some of our tests were affected by the width of the
terminal that they were run in, which has been corrected by
exporting a fixed value in the COLUMNS environment.
* ab/fix-columns-to-80-during-tests:
test-lib.sh: set COLUMNS=80 for --verbose repeatability
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Typofixes.
* ar/more-typofix:
git-worktree.txt: fix typo in example path
t: fix typos in test messages
blame: correct name of config option in docs
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Some test scripts assumed that readlink(1) was universally
installed and available, which is not the case.
* jk/test-without-readlink-1:
t: use portable wrapper for readlink(1)
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The side-band demultiplexer that is used to display progress output
from the remote end did not clear the line properly when the end of
line hits at a packet boundary, which has been corrected. Also
comes with test clean-ups.
* jx/sideband-cleanup:
test: refactor to use "get_abbrev_oid" to get abbrev oid
test: refactor to use "test_commit" to create commits
test: compare raw output, not mangle tabs and spaces
sideband: don't lose clear-to-eol at packet boundary
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We broke "GIT_SKIP_TESTS=t?000" to skip certain tests in recent
update, which got fixed.
* jk/test-avoid-globmatch-with-skip-patterns:
test-lib: avoid accidental globbing in match_pattern_list()
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Test fix.
* ab/config-hooks-path-testfix:
pre-commit hook tests: don't leave "actual" nonexisting on failure
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Work around inefficient glob substitution in older versions of bash
by rewriting parts of a test.
* jx/t6020-with-older-bash:
t6020: fix incompatible parameter expansion
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Typofixes.
* ar/typofix:
*: fix typos which duplicate a word
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"git-svn" tests assumed that "locale -a", which is used to pick an
available UTF-8 locale, is available everywhere. A knob has been
introduced to allow testers to specify a suitable locale to use.
* dd/svn-test-wo-locale-a:
t: use user-specified utf-8 locale for testing svn
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The recent --negotiate-only option would segfault in the call to
oid_array_for_each() in negotiate_using_fetch() unless one or more
--negotiation-tip=* options were provided.
All of the other tests for the feature combine both, but nothing was
checking this assumption, let's do that and add a test for it. Fixes a
bug in 9c1e657a8fd (fetch: teach independent negotiation (no
packfile), 2021-05-04).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In t6402, we're checking number of files in the index and the working
tree by piping the output of Git's command to "wc -l", thus losing the
exit status code of git.
Let's use the new helper test_stdout_line_count in order to preserve
Git's exit status code.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In t6400, we're checking number of files in the index and the working
tree by piping the output of "git ls-files" to "wc -l", thus losing the
exit status code of git.
Let's use the newly introduced test_stdout_line_count in order to check
the exit status code of Git's command.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In some tests, we're checking the number of lines in output of some
commands, including but not limited to Git's command.
We're doing the check by running those commands in the left side of
a pipe, thus losing the exit status code of those commands. Meanwhile,
we really want to check the exit status code of Git's command.
Let's write the output of those commands to a temporary file, and use
test_line_count separately in order to check exit status code of
those commands properly.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have a custom match_pattern_list() function which we use for matching
test names (like "t1234") against glob-like patterns (like "t1???") for
$GIT_SKIP_TESTS, --verbose-only, etc.
Those patterns may have multiple whitespace-separated elements (e.g.,
"t0* t1234 t5?78"). The callers of match_pattern_list thus pass the
strings unquoted, so that the shell does the usual field-splitting into
separate arguments.
But this also means the shell will do the usual globbing for each
argument, which can result in us seeing an expansion based on what's in
the filesystem, rather than the real pattern. For example, if I have the
path "t5000" in the filesystem, and you feed the pattern "t?000", that
_should_ match the string "t0000", but it won't after the shell has
expanded it to "t5000".
This has been a bug ever since that function was introduced. But it
didn't usually trigger since we typically use the function inside the
trash directory, which has a very limited set of files that are unlikely
to match. It became a lot easier to trigger after edc23840b0 (test-lib:
bring $remove_trash out of retirement, 2021-05-10), because now we match
$GIT_SKIP_TESTS before even entering the trash directory. So the t5000
example above can be seen with:
GIT_SKIP_TESTS=t?000 ./t0000-basic.sh
which should skip all tests but doesn't.
We can fix this by using "set -f" to ask the shell not to glob (which is
in POSIX, so should hopefully be portable enough). We only want to do
this in a subshell (to avoid polluting the rest of the script), which
means we need to get the whole string intact into the match_pattern_list
function by quoting it. Arguably this is a good idea anyway, since it
makes it much more obvious that we intend to split, and it's not simply
sloppy scripting.
Diagnosed-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Directory rename detection can cause transitive renames, e.g. if the two
different sides of history each do one half of:
A/file -> B/file
B/ -> C/
then directory rename detection transitively renames to give us
A/file -> C/file
However, when C/ == A/, note that this gives us
A/file -> A/file.
merge-recursive assumed that any rename D -> E would have D != E. While
that is almost always true, the above is a special case where it is not.
So we cannot do things like delete the rename source, we cannot assume
that a file existing at path E implies a rename/add conflict and we have
to be careful about what stages end up in the output.
This change feels a bit hackish. It took me surprisingly many hours to
find, and given merge-recursive's design causing it to attempt to
enumerate all combinations of edge and corner cases with special code
for each combination, I'm worried there are other similar fixes needed
elsewhere if we can just come up with the right special testcase.
Perhaps an audit would rule it out, but I have not the energy.
merge-recursive deserves to die, and since it is on its way out anyway,
fixing this particular bug narrowly will have to be good enough.
Reported-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Path conflicts (typically rename path conflicts, e.g.
rename/rename(1to2) or rename/add/delete), and directory/file conflicts
should obviously result in files not being marked as clean in the merge.
We had a codepath where we missed consulting the path_conflict and
df_conflict flags, based on match_mask. Granted, it requires an unusual
setup to trigger this codepath (directory rename causing rename-to-self
is the only case I can think of), but we still need to handle it. To
make it clear that we have audited the other codepaths that do not
explicitly mention these flags, add some assertions that the flags are
not set.
Reported-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Directory rename detection can cause transitive renames, e.g. if the two
different sides of history each do one half of:
A/file -> B/file
B/ -> C/
then directory rename detection transitively renames to give us C/file.
Since the default for merge.directoryRenames is conflict, this results
in an error message saying it is unclear whether the file should be
placed at B/file or C/file.
What if C/ is A/, though? In such a case, the transitive rename would
give us A/file, the original name we started with. Logically, having
an error message with B/file vs. A/file should be fine, as should
leaving the file where it started. But the logic in both
merge-recursive and merge-ort did not handle a case of a filename being
renamed to itself correctly; merge-recursive had two bugs, and merge-ort
had one. Add some testcases covering such a scenario.
Based-on-testcase-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Git grep allows combining two patterns with --and. It checks and
reports if the second pattern is missing when compiling the expression.
A missing first pattern, however, is only reported later at match time.
Thus no error is returned if no matching is done, e.g. because no file
matches the also given pathspec.
When that happens we get an expression tree with an GREP_NODE_AND node
and a NULL pointer to the missing left child. free_pattern_expr()
tries to dereference it during the cleanup at the end, which results
in a segmentation fault.
Fix this by verifying the presence of the left operand at expression
compilation time.
Reported-by: Matthew Hughes <matthewhughes934@gmail.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Some tests will fail under --verbose because while we've unset COLUMNS
since b1d645b58ac (tests: unset COLUMNS inherited from environment,
2012-03-27), we also look for the columns with an ioctl(..,
TIOCGWINSZ, ...) on some platforms. By setting COLUMNS again we
preempt the TIOCGWINSZ lookup in pager.c's term_columns(), it'll take
COLUMNS over TIOCGWINSZ,
This fixes t0500-progress-display.sh., which broke because of a
combination of the this issue and the progress output reacting to the
column width since 545dc345ebd (progress: break too long progress bar
lines, 2019-04-12). The t5324-split-commit-graph.sh fails in a similar
manner due to progress output, see [1] for details.
The issue is not specific to progress.c, the diff code also checks
COLUMNS and some of its tests can be made to fail in a similar
manner[2], anything that invokes a pager is potentially affected.
See ea77e675e56 (Make "git help" react to window size correctly,
2005-12-18) and ad6c3739a33 (pager: find out the terminal width before
spawning the pager, 2012-02-12) for how the TIOCGWINSZ code ended up
in pager.c
1. http://lore.kernel.org/git/20210624051253.GG6312@szeder.dev
2. https://lore.kernel.org/git/20210627074419.GH6312@szeder.dev/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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'git multi-pack-index verify' inspects the data in an existing MIDX for
correctness by checking that the recorded object offsets are correct,
and so on.
But it does not check that the file's trailing checksum matches the data
that it records. So, if an on-disk corruption happened to occur in the
final few bytes (and all other data was recorded correctly), we would:
- get a clean result from 'git multi-pack-index verify', but
- be unable to reuse the existing MIDX when writing a new one (since
we now check for checksum mismatches before reusing a MIDX)
Teach the 'verify' sub-command to recognize corruption in the checksum
by calling midx_checksum_valid().
Suggested-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When writing a new multi-pack index, Git tries to reuse as much of the
data from an existing MIDX as possible, like object offsets. This is
done to avoid re-opening a bunch of *.idx files unnecessarily, but can
lead to problems if the data we are reusing is corrupt.
That's because we'll blindly reuse data from an existing MIDX without
checking its trailing checksum for validity. So if there is memory
corruption while writing a MIDX, or disk corruption in the intervening
period between writing and reuse, we'll blindly propagate those bad
values forward.
Suppose we experience a memory corruption while writing a MIDX such that
we write an incorrect object offset (or alternatively, the disk corrupts
the data after being written, but before being reused). Then when we go
to write a new MIDX, we'll reuse the bad object offset without checking
its validity. This means that the MIDX we just wrote is broken, but its
trailing checksum is in-tact, since we never bothered to look at the
values before writing.
In the above, a "git multi-pack-index verify" would have caught the
problem before writing, but writing a new MIDX wouldn't have noticed
anything wrong, blindly carrying forward the corrupt offset.
Individual pack indexes check their validity by verifying the crc32
attached to each entry when carrying data forward during a repack.
We could solve this problem for MIDXs in the same way, but individual
crc32's don't make much sense, since their entries are so small.
Likewise, checking the whole file on every read may be prohibitively
expensive if a repository has a lot of objects, packs, or both.
But we can check the trailing checksum when reusing an existing MIDX
when writing a new one. And a corrupt MIDX need not stop us from writing
a new one, since we can just avoid reusing the existing one at all and
pretend as if we are writing a new MIDX from scratch.
Suggested-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both in t4258 and in t9001, the code of the tests following shows the
proper name for the configuration variables. So use the correct names
in the test messages as well.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is one step towards supporting partial clone submodules.
Even after this patch, we will still lack partial clone submodules
support, primarily because a lot of Git code that accesses submodule
objects does so by adding their object stores as alternates, meaning
that any lazy fetches that would occur in the submodule would be done
based on the config of the superproject, not of the submodule. This also
prevents testing of the functionality in this patch by user-facing
commands. So for now, test this mechanism using a test helper.
Besides that, there is some code that uses the wrapper functions
like has_promisor_remote(). Those will need to be checked to see if they
could support the non-wrapper functions instead (and thus support any
repository, not just the_repository).
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ævar Arnfjörð Bjarmason
Junio C Hamano
brian m. carlson
Han-Wen Nienhuys
Đoàn Trần Công Danh
Jeff King
Elijah Newren
René Scharfe
Taylor Blau
Andrei Rybak
Jonathan Tan