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![Ævar Arnfjörð Bjarmason](/assets/img/avatar_default.png)
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>
201 lines
4.6 KiB
Bash
Executable file
201 lines
4.6 KiB
Bash
Executable file
#!/bin/sh
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test_description='git patch-id'
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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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as="a a a a a a a a" && # eight a
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test_write_lines $as >foo &&
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test_write_lines $as >bar &&
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git add foo bar &&
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git commit -a -m initial &&
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test_write_lines $as b >foo &&
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test_write_lines $as b >bar &&
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git commit -a -m first &&
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git checkout -b same main &&
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git commit --amend -m same-msg &&
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git checkout -b notsame main &&
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echo c >foo &&
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echo c >bar &&
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git commit --amend -a -m notsame-msg &&
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test_write_lines bar foo >bar-then-foo &&
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test_write_lines foo bar >foo-then-bar
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'
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test_expect_success 'patch-id output is well-formed' '
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git log -p -1 | git patch-id >output &&
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grep "^$OID_REGEX $(git rev-parse HEAD)$" output
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'
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#calculate patch id. Make sure output is not empty.
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calc_patch_id () {
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patch_name="$1"
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shift
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git patch-id "$@" |
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sed "s/ .*//" >patch-id_"$patch_name" &&
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test_line_count -gt 0 patch-id_"$patch_name"
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}
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get_top_diff () {
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git log -p -1 "$@" -O bar-then-foo --
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}
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get_patch_id () {
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get_top_diff "$1" | calc_patch_id "$@"
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}
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test_expect_success 'patch-id detects equality' '
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get_patch_id main &&
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get_patch_id same &&
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test_cmp patch-id_main patch-id_same
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'
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test_expect_success 'patch-id detects inequality' '
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get_patch_id main &&
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get_patch_id notsame &&
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! test_cmp patch-id_main patch-id_notsame
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'
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test_expect_success 'patch-id supports git-format-patch output' '
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get_patch_id main &&
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git checkout same &&
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git format-patch -1 --stdout | calc_patch_id same &&
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test_cmp patch-id_main patch-id_same &&
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set $(git format-patch -1 --stdout | git patch-id) &&
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test "$2" = $(git rev-parse HEAD)
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'
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test_expect_success 'whitespace is irrelevant in footer' '
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get_patch_id main &&
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git checkout same &&
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git format-patch -1 --stdout | sed "s/ \$//" | calc_patch_id same &&
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test_cmp patch-id_main patch-id_same
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'
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cmp_patch_id () {
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if
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test "$1" = "relevant"
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then
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! test_cmp patch-id_"$2" patch-id_"$3"
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else
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test_cmp patch-id_"$2" patch-id_"$3"
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fi
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}
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test_patch_id_file_order () {
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relevant="$1"
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shift
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name="order-${1}-$relevant"
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shift
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get_top_diff "main" | calc_patch_id "$name" "$@" &&
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git checkout same &&
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git format-patch -1 --stdout -O foo-then-bar |
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calc_patch_id "ordered-$name" "$@" &&
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cmp_patch_id $relevant "$name" "ordered-$name"
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}
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# combined test for options: add more tests here to make them
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# run with all options
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test_patch_id () {
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test_patch_id_file_order "$@"
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}
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# small tests with detailed diagnostic for basic options.
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test_expect_success 'file order is irrelevant with --stable' '
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test_patch_id_file_order irrelevant --stable --stable
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'
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test_expect_success 'file order is relevant with --unstable' '
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test_patch_id_file_order relevant --unstable --unstable
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'
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#Now test various option combinations.
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test_expect_success 'default is unstable' '
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test_patch_id relevant default
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'
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test_expect_success 'patchid.stable = true is stable' '
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test_config patchid.stable true &&
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test_patch_id irrelevant patchid.stable=true
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'
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test_expect_success 'patchid.stable = false is unstable' '
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test_config patchid.stable false &&
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test_patch_id relevant patchid.stable=false
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'
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test_expect_success '--unstable overrides patchid.stable = true' '
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test_config patchid.stable true &&
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test_patch_id relevant patchid.stable=true--unstable --unstable
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'
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test_expect_success '--stable overrides patchid.stable = false' '
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test_config patchid.stable false &&
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test_patch_id irrelevant patchid.stable=false--stable --stable
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'
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test_expect_success 'patch-id supports git-format-patch MIME output' '
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get_patch_id main &&
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git checkout same &&
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git format-patch -1 --attach --stdout | calc_patch_id same &&
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test_cmp patch-id_main patch-id_same
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'
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test_expect_success 'patch-id respects config from subdir' '
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test_config patchid.stable true &&
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mkdir subdir &&
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# copy these because test_patch_id() looks for them in
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# the current directory
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cp bar-then-foo foo-then-bar subdir &&
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(
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cd subdir &&
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test_patch_id irrelevant patchid.stable=true
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)
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'
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cat >nonl <<\EOF
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diff --git i/a w/a
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index e69de29..2e65efe 100644
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--- i/a
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+++ w/a
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@@ -0,0 +1 @@
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+a
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\ No newline at end of file
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diff --git i/b w/b
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index e69de29..6178079 100644
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--- i/b
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+++ w/b
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@@ -0,0 +1 @@
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+b
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EOF
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cat >withnl <<\EOF
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diff --git i/a w/a
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index e69de29..7898192 100644
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--- i/a
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+++ w/a
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@@ -0,0 +1 @@
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+a
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diff --git i/b w/b
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index e69de29..6178079 100644
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--- i/b
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+++ w/b
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@@ -0,0 +1 @@
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+b
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EOF
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test_expect_success 'patch-id handles no-nl-at-eof markers' '
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cat nonl | calc_patch_id nonl &&
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cat withnl | calc_patch_id withnl &&
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test_cmp patch-id_nonl patch-id_withnl
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'
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test_done
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