git/t/t3506-cherry-pick-ff.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='test cherry-picking with --ff option'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success setup '
echo first > file1 &&
git add file1 &&
test_tick &&
git commit -m "first" &&
git tag first &&
git checkout -b other &&
echo second >> file1 &&
git add file1 &&
test_tick &&
git commit -m "second" &&
git tag second &&
test_oid_cache <<-EOF
cp_ff sha1:1df192cd8bc58a2b275d842cede4d221ad9000d1
cp_ff sha256:e70d6b7fc064bddb516b8d512c9057094b96ce6ff08e12080acc4fe7f1d60a1d
EOF
'
test_expect_success 'cherry-pick using --ff fast forwards' '
git checkout main &&
git reset --hard first &&
test_tick &&
git cherry-pick --ff second &&
test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify second)"
'
test_expect_success 'cherry-pick not using --ff does not fast forwards' '
git checkout main &&
git reset --hard first &&
test_tick &&
git cherry-pick second &&
test "$(git rev-parse --verify HEAD)" != "$(git rev-parse --verify second)"
'
#
# We setup the following graph:
#
# B---C
# / /
# first---A
#
# (This has been taken from t3502-cherry-pick-merge.sh)
#
test_expect_success 'merge setup' '
git checkout main &&
git reset --hard first &&
echo new line >A &&
git add A &&
test_tick &&
git commit -m "add line to A" A &&
git tag A &&
git checkout -b side first &&
echo new line >B &&
git add B &&
test_tick &&
git commit -m "add line to B" B &&
git tag B &&
git checkout main &&
git merge side &&
git tag C &&
git checkout -b new A
'
test_expect_success 'cherry-pick explicit first parent of a non-merge with --ff' '
git reset --hard A -- &&
git cherry-pick --ff -m 1 B &&
git diff --exit-code C --
'
test_expect_success 'cherry pick a merge with --ff but without -m should fail' '
git reset --hard A -- &&
test_must_fail git cherry-pick --ff C &&
git diff --exit-code A --
'
test_expect_success 'cherry pick with --ff a merge (1)' '
git reset --hard A -- &&
git cherry-pick --ff -m 1 C &&
git diff --exit-code C &&
test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify C)"
'
test_expect_success 'cherry pick with --ff a merge (2)' '
git reset --hard B -- &&
git cherry-pick --ff -m 2 C &&
git diff --exit-code C &&
test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify C)"
'
test_expect_success 'cherry pick a merge relative to nonexistent parent with --ff should fail' '
git reset --hard B -- &&
test_must_fail git cherry-pick --ff -m 3 C
'
test_expect_success 'cherry pick a root commit with --ff' '
git reset --hard first -- &&
git rm file1 &&
echo first >file2 &&
git add file2 &&
git commit --amend -m "file2" &&
git cherry-pick --ff first &&
test "$(git rev-parse --verify HEAD)" = "$(test_oid cp_ff)"
'
test_expect_success 'cherry-pick --ff on unborn branch' '
git checkout --orphan unborn &&
git rm --cached -r . &&
rm -rf * &&
git cherry-pick --ff first &&
test_cmp_rev first HEAD
'
test_done