git/t/t3419-rebase-patch-id.sh
Ævar Arnfjörð Bjarmason 9ff2f06069 sequencer API users: fix get_replay_opts() leaks
Make the replay_opts_release() function added in the preceding commit
non-static, and use it for freeing the "struct replay_opts"
constructed for "rebase" and "revert".

To safely call our new replay_opts_release() we'll need to stop
calling it in sequencer_remove_state(), and instead call it where we
allocate the "struct replay_opts" itself.

This is because in e.g. do_interactive_rebase() we construct a "struct
replay_opts" with "get_replay_opts()", and then call
"complete_action()". If we get far enough in that function without
encountering errors we'll call "pick_commits()" which (indirectly)
calls sequencer_remove_state() at the end.

But if we encounter errors anywhere along the way we'd punt out early,
and not free() the memory we allocated. Remembering whether we
previously called sequencer_remove_state() would be a hassle.

Using a FREE_AND_NULL() pattern would also work, as it would be safe
to call replay_opts_release() repeatedly. But let's fix this properly
instead, by having the owner of the data free() it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-06 16:03:52 -08:00

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#!/bin/sh
test_description='git rebase - test patch id computation'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
scramble () {
i=0
while read x
do
if test $i -ne 0
then
echo "$x"
fi
i=$((($i+1) % 10))
done <"$1" >"$1.new"
mv -f "$1.new" "$1"
}
test_expect_success 'setup' '
git commit --allow-empty -m initial &&
git tag root
'
test_expect_success 'setup: 500 lines' '
rm -f .gitattributes &&
git checkout -q -f main &&
git reset --hard root &&
test_seq 500 >file &&
git add file &&
git commit -q -m initial &&
git branch -f other &&
scramble file &&
git add file &&
git commit -q -m "change big file" &&
git checkout -q other &&
: >newfile &&
git add newfile &&
git commit -q -m "add small file" &&
git cherry-pick main >/dev/null 2>&1 &&
git branch -f squashed main &&
git checkout -q -f squashed &&
git reset -q --soft HEAD~2 &&
git commit -q -m squashed &&
git branch -f mode main &&
git checkout -q -f mode &&
test_chmod +x file &&
git commit -q -a --amend &&
git branch -f modeother other &&
git checkout -q -f modeother &&
test_chmod +x file &&
git commit -q -a --amend
'
test_expect_success 'detect upstream patch' '
git checkout -q main^{} &&
scramble file &&
git add file &&
git commit -q -m "change big file again" &&
git checkout -q other^{} &&
git rebase main &&
git rev-list main...HEAD~ >revs &&
test_must_be_empty revs
'
test_expect_success 'detect upstream patch binary' '
echo "file binary" >.gitattributes &&
git checkout -q other^{} &&
git rebase main &&
git rev-list main...HEAD~ >revs &&
test_must_be_empty revs &&
test_when_finished "rm .gitattributes"
'
test_expect_success 'detect upstream patch modechange' '
git checkout -q modeother^{} &&
git rebase mode &&
git rev-list mode...HEAD~ >revs &&
test_must_be_empty revs
'
test_expect_success 'do not drop patch' '
git checkout -q other^{} &&
test_must_fail git rebase squashed &&
test_when_finished "git rebase --abort"
'
test_expect_success 'do not drop patch binary' '
echo "file binary" >.gitattributes &&
git checkout -q other^{} &&
test_must_fail git rebase squashed &&
test_when_finished "git rebase --abort" &&
test_when_finished "rm .gitattributes"
'
test_expect_success 'do not drop patch modechange' '
git checkout -q modeother^{} &&
git rebase other &&
cat >expected <<-\EOF &&
diff --git a/file b/file
old mode 100644
new mode 100755
EOF
git diff HEAD~ >modediff &&
test_cmp expected modediff
'
test_done