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6355e505ba
cherry-pick will segfault when transplanting a root commit if the --ff option is used. This happens because the "parent" pointer is set to NULL when the commit being cherry-picked has no parents. Later, when "parent" is dereferenced, the cherry-pick segfaults. Fix this by checking whether "parent" is NULL before dereferencing it and add a test for this case of cherry-picking a root commit with --ff. Reported-by: Zbyszek Szmek <zbyszek@in.waw.pl> Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
108 lines
2.6 KiB
Bash
Executable file
108 lines
2.6 KiB
Bash
Executable file
#!/bin/sh
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test_description='test cherry-picking with --ff option'
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. ./test-lib.sh
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test_expect_success setup '
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echo first > file1 &&
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git add file1 &&
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test_tick &&
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git commit -m "first" &&
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git tag first &&
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git checkout -b other &&
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echo second >> file1 &&
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git add file1 &&
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test_tick &&
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git commit -m "second" &&
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git tag second
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'
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test_expect_success 'cherry-pick using --ff fast forwards' '
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git checkout master &&
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git reset --hard first &&
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test_tick &&
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git cherry-pick --ff second &&
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test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify second)"
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'
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test_expect_success 'cherry-pick not using --ff does not fast forwards' '
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git checkout master &&
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git reset --hard first &&
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test_tick &&
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git cherry-pick second &&
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test "$(git rev-parse --verify HEAD)" != "$(git rev-parse --verify second)"
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'
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#
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# We setup the following graph:
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#
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# B---C
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# / /
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# first---A
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#
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# (This has been taken from t3502-cherry-pick-merge.sh)
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#
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test_expect_success 'merge setup' '
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git checkout master &&
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git reset --hard first &&
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echo new line >A &&
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git add A &&
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test_tick &&
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git commit -m "add line to A" A &&
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git tag A &&
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git checkout -b side first &&
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echo new line >B &&
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git add B &&
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test_tick &&
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git commit -m "add line to B" B &&
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git tag B &&
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git checkout master &&
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git merge side &&
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git tag C &&
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git checkout -b new A
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'
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test_expect_success 'cherry-pick a non-merge with --ff and -m should fail' '
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git reset --hard A -- &&
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test_must_fail git cherry-pick --ff -m 1 B &&
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git diff --exit-code A --
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'
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test_expect_success 'cherry pick a merge with --ff but without -m should fail' '
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git reset --hard A -- &&
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test_must_fail git cherry-pick --ff C &&
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git diff --exit-code A --
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'
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test_expect_success 'cherry pick with --ff a merge (1)' '
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git reset --hard A -- &&
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git cherry-pick --ff -m 1 C &&
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git diff --exit-code C &&
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test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify C)"
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'
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test_expect_success 'cherry pick with --ff a merge (2)' '
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git reset --hard B -- &&
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git cherry-pick --ff -m 2 C &&
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git diff --exit-code C &&
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test "$(git rev-parse --verify HEAD)" = "$(git rev-parse --verify C)"
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'
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test_expect_success 'cherry pick a merge relative to nonexistent parent with --ff should fail' '
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git reset --hard B -- &&
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test_must_fail git cherry-pick --ff -m 3 C
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'
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test_expect_success 'cherry pick a root commit with --ff' '
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git reset --hard first -- &&
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git rm file1 &&
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echo first >file2 &&
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git add file2 &&
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git commit --amend -m "file2" &&
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git cherry-pick --ff first &&
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test "$(git rev-parse --verify HEAD)" = "1df192cd8bc58a2b275d842cede4d221ad9000d1"
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'
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test_done
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