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9081a421a6
The "checkout" command is one of the main sources of leaks in the test
suite, let's fix the common ones by not leaking from the "struct
branch_info".
Doing this is rather straightforward, albeit verbose, we need to
xstrdup() constant strings going into the struct, and free() the ones
we clobber as we go along.
This also means that we can delete previous partial leak fixes in this
area, i.e. the "path_to_free" accounting added by 96ec7b1e70 (Convert
resolve_ref+xstrdup to new resolve_refdup function, 2011-12-13).
There was some discussion about whether "we should retain the "const
char *" here and cast at free() time, or have it be a "char *". Since
this is not a public API with any sort of API boundary let's use
"char *", as is already being done for the "refname" member of the
same struct.
The tests to mark as passing were found with:
rm .prove; GIT_SKIP_TESTS=t0027 prove -j8 --state=save t[0-9]*.sh :: --immediate
# apply & compile this change
prove -j8 --state=failed :: --immediate
I.e. the ones that were newly passing when the --state=failed command
was run. I left out "t3040-subprojects-basic.sh" and
"t4131-apply-fake-ancestor.sh" to to optimization-level related
differences similar to the ones noted in[1], except that these would
be something the current 'linux-leaks' job would run into.
1. https://lore.kernel.org/git/cover-v3-0.6-00000000000-20211022T175227Z-avarab@gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
96 lines
2.5 KiB
Bash
Executable file
96 lines
2.5 KiB
Bash
Executable file
#!/bin/sh
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test_description='checkout $tree -- $paths'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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test_expect_success setup '
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mkdir dir &&
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>dir/main &&
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echo common >dir/common &&
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git add dir/main dir/common &&
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test_tick && git commit -m "main has dir/main" &&
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git checkout -b next &&
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git mv dir/main dir/next0 &&
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echo next >dir/next1 &&
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git add dir &&
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test_tick && git commit -m "next has dir/next but not dir/main"
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'
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test_expect_success 'checking out paths out of a tree does not clobber unrelated paths' '
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git checkout next &&
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git reset --hard &&
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rm dir/next0 &&
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cat dir/common >expect.common &&
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echo modified >expect.next1 &&
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cat expect.next1 >dir/next1 &&
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echo untracked >expect.next2 &&
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cat expect.next2 >dir/next2 &&
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git checkout main dir &&
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test_cmp expect.common dir/common &&
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test_path_is_file dir/main &&
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git diff --exit-code main dir/main &&
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test_path_is_missing dir/next0 &&
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test_cmp expect.next1 dir/next1 &&
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test_path_is_file dir/next2 &&
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test_must_fail git ls-files --error-unmatch dir/next2 &&
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test_cmp expect.next2 dir/next2
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'
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test_expect_success 'do not touch unmerged entries matching $path but not in $tree' '
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git checkout next &&
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git reset --hard &&
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cat dir/common >expect.common &&
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EMPTY_SHA1=$(git hash-object -w --stdin </dev/null) &&
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git rm dir/next0 &&
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cat >expect.next0 <<-EOF &&
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100644 $EMPTY_SHA1 1 dir/next0
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100644 $EMPTY_SHA1 2 dir/next0
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EOF
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git update-index --index-info <expect.next0 &&
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git checkout main dir &&
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test_cmp expect.common dir/common &&
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test_path_is_file dir/main &&
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git diff --exit-code main dir/main &&
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git ls-files -s dir/next0 >actual.next0 &&
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test_cmp expect.next0 actual.next0
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'
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test_expect_success 'do not touch files that are already up-to-date' '
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git reset --hard &&
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echo one >file1 &&
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echo two >file2 &&
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git add file1 file2 &&
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git commit -m base &&
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echo modified >file1 &&
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test-tool chmtime =1000000000 file2 &&
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git update-index -q --refresh &&
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git checkout HEAD -- file1 file2 &&
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echo one >expect &&
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test_cmp expect file1 &&
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echo "1000000000" >expect &&
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test-tool chmtime --get file2 >actual &&
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test_cmp expect actual
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'
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test_expect_success 'checkout HEAD adds deleted intent-to-add file back to index' '
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echo "nonempty" >nonempty &&
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>empty &&
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git add nonempty empty &&
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git commit -m "create files to be deleted" &&
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git rm --cached nonempty empty &&
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git add -N nonempty empty &&
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git checkout HEAD nonempty empty &&
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git diff --cached --exit-code
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'
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test_done
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