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Various leak fixes.
* ab/various-leak-fixes:
built-ins: use free() not UNLEAK() if trivial, rm dead code
revert: fix parse_options_concat() leak
cherry-pick: free "struct replay_opts" members
rebase: don't leak on "--abort"
connected.c: free the "struct packed_git"
sequencer.c: fix "opts->strategy" leak in read_strategy_opts()
ls-files: fix a --with-tree memory leak
revision API: call graph_clear() in release_revisions()
unpack-file: fix ancient leak in create_temp_file()
built-ins & libs & helpers: add/move destructors, fix leaks
dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache"
read-cache.c: clear and free "sparse_checkout_patterns"
commit: discard partial cache before (re-)reading it
{reset,merge}: call discard_index() before returning
tests: mark tests as passing with SANITIZE=leak
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This marks tests that have been leak-free since various recent
commits, but which were not marked us such when the memory leak was
fixed. These were mostly discovered with the "check" mode added in
faececa53f9 (test-lib: have the "check" mode for SANITIZE=leak
consider leak logs, 2022-07-28).
Commits that fixed the last memory leak in these tests. Per narrowing
down when they started to pass under SANITIZE=leak with "bisect":
- t1022-read-tree-partial-clone.sh:
7e2619d8ff0 (list_objects_filter_options: plug leak of filter_spec
strings, 2022-09-08)
- t4053-diff-no-index.sh: 07a6f94a6d0 (diff-no-index: release prefixed
filenames, 2022-09-07)
- t6415-merge-dir-to-symlink.sh: bac92b1f39f (Merge branch
'js/ort-clean-up-after-failed-merge', 2022-08-08).
- t5554-noop-fetch-negotiator.sh:
66eede4a37c (prepare_repo_settings(): plug leak of config values,
2022-09-08)
- t2012-checkout-last.sh, t7504-commit-msg-hook.sh,
t91{15,46,60}-git-svn-*.sh: The in-flight "pw/rebase-no-reflog-action"
series, upon which this is based:
https://lore.kernel.org/git/pull.1405.git.1667575142.gitgitgadget@gmail.com/
Let's mark all of these as passing with
"TEST_PASSES_SANITIZE_LEAK=true", to have it regression tested,
including as part of the "linux-leaks" CI job.
Additionally, let's remove the "!SANITIZE_LEAK" prerequisite from
tests that now pass, these were marked as failing in:
- 77e56d55ba6 (diff.c: fix a double-free regression in a18d66cefb,
2022-03-17)
- c4d1d526312 (tests: change some 'test $(git) = "x"' to test_cmp,
2022-03-07)
These were not spotted with the new "check" mode, but manually, it
doesn't cover these sort of prerequisites. There's few enough that we
shouldn't bother to automate it. They'll be going away sooner than
later.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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When running 'read-tree' with a single tree and no prefix,
'prime_cache_tree()' is called after the tree is unpacked. In that
situation, skip a redundant call to 'cache_tree_update()' in
'unpack_trees()' by enabling the 'skip_cache_tree_update' unpack option.
Removing the redundant cache tree update provides a substantial performance
improvement to 'git read-tree <tree-ish>', as shown by a test added to
'p0006-read-tree-checkout.sh':
Test before after
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read-tree br_ballast_plus_1 3.94(1.80+1.57) 3.00(1.14+1.28) -23.9%
Note that the 'read-tree' in 't1022-read-tree-partial-clone.sh' is updated
to read two trees, rather than one. The test was first introduced in
d3da223f221 (cache-tree: prefetch in partial clone read-tree, 2021-07-23) to
exercise the 'cache_tree_update()' code path, as used in 'git merge'. Since
this patch drops the call to 'cache_tree_update()' in single-tree 'git
read-tree', change the test to use the two-tree variant so that
'cache_tree_update()' is called as intended.
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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A couple of test scripts have actually been adapted to accommodate for a
configurable default branch name, but they still overrode it via the
`GIT_TEST_*` variable. Let's drop that override where possible.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git read-tree" checks the existence of the blobs referenced by the
given tree, but does not bulk prefetch them. Add a bulk prefetch.
The lack of prefetch here was noticed at $DAYJOB during a merge
involving some specific commits, but I couldn't find a minimal merge
that didn't also trigger the prefetch in check_updates() in
unpack-trees.c (and in all these cases, the lack of prefetch in
cache-tree.c didn't matter because all the relevant blobs would have
already been prefetched by then). This is why I used read-tree here to
exercise this code path.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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