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![Phillip Wood](/assets/img/avatar_default.png)
During a series of "fixup" and/or "squash" commands, the interactive rebase accumulates a commit message from all the commits that are being squashed together. If one of the commits has conflicts when it is picked and the user chooses to skip that commit then we need to remove that commit's message from accumulated messages. To do this15ef69314d
(rebase --skip: clean up commit message after a failed fixup/squash, 2018-04-27) updated commit_staged_changes() to reset the accumulated message to the commit message of HEAD (which does not contain the message from the skipped commit) when the last command was "fixup" or "squash" and there are no staged changes. Unfortunately the code to do this contains two bugs. (1) If parse_head() fails we pass an invalid pointer to unuse_commit_buffer(). (2) The reconstructed message uses the entire commit buffer from HEAD including the headers, rather than just the commit message. The first issue is fixed by splitting up the "if" condition into several statements each with its own error handling. The second issue is fixed by finding the start of the commit message within the commit buffer using find_commit_subject(). The existing test added by15ef69314d
is modified to show the effect of this bug. The bug is triggered when skipping the first command in the chain (as the test does before this commit) but the effect is hidden because opts->current_fixup_count is set to zero which leads update_squash_messages() to recreate the squash message file from scratch overwriting the bad message created by commit_staged_changes(). The test is also updated to explicitly check the commit messages rather than relying on grep to ensure they do not contain any stray commit headers. To check the commit message the function test_commit_message() is moved from t3437-rebase-fixup-options.sh to test-lib.sh. As the function is now publicly available it is updated to provide better error detection and avoid overwriting the commonly used files "actual" and "expect". Support for reading the expected commit message from stdin is also added. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
340 lines
9.5 KiB
Bash
Executable file
340 lines
9.5 KiB
Bash
Executable file
#!/bin/sh
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test_description='git rebase --continue tests'
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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-lib.sh
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. "$TEST_DIRECTORY"/lib-rebase.sh
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set_fake_editor
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test_expect_success 'setup' '
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test_commit "commit-new-file-F1" F1 1 &&
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test_commit "commit-new-file-F2" F2 2 &&
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git checkout -b topic HEAD^ &&
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test_commit "commit-new-file-F2-on-topic-branch" F2 22 &&
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git checkout main
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'
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test_expect_success 'merge based rebase --continue with works with touched file' '
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rm -fr .git/rebase-* &&
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git reset --hard &&
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git checkout main &&
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FAKE_LINES="edit 1" git rebase -i HEAD^ &&
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test-tool chmtime =-60 F1 &&
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git rebase --continue
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'
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test_expect_success 'merge based rebase --continue removes .git/MERGE_MSG' '
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git checkout -f --detach topic &&
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test_must_fail git rebase --onto main HEAD^ &&
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git read-tree --reset -u HEAD &&
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test_path_is_file .git/MERGE_MSG &&
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git rebase --continue &&
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test_path_is_missing .git/MERGE_MSG
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'
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test_expect_success 'apply based rebase --continue works with touched file' '
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rm -fr .git/rebase-* &&
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git reset --hard &&
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git checkout main &&
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test_must_fail git rebase --apply --onto main main topic &&
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echo "Resolved" >F2 &&
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git add F2 &&
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test-tool chmtime =-60 F1 &&
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git rebase --continue
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'
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test_expect_success 'rebase --continue can not be used with other options' '
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test_must_fail git rebase -v --continue &&
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test_must_fail git rebase --continue -v
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'
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test_expect_success 'rebase --continue remembers merge strategy and options' '
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rm -fr .git/rebase-* &&
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git reset --hard commit-new-file-F2-on-topic-branch &&
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test_commit "commit-new-file-F3-on-topic-branch" F3 32 &&
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test_when_finished "rm -fr test-bin" &&
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mkdir test-bin &&
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write_script test-bin/git-merge-funny <<-\EOF &&
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printf "[%s]\n" $# "$1" "$2" "$3" "$5" >actual
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shift 3 &&
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exec git merge-recursive "$@"
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EOF
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cat >expect <<-\EOF &&
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[7]
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[--option=arg with space]
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[--op"tion\]
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[--new
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line ]
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[--]
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EOF
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rm -f actual &&
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(
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PATH=./test-bin:$PATH &&
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test_must_fail git rebase -s funny -X"option=arg with space" \
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-Xop\"tion\\ -X"new${LF}line " main topic
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) &&
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test_cmp expect actual &&
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rm actual &&
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echo "Resolved" >F2 &&
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git add F2 &&
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(
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PATH=./test-bin:$PATH &&
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git rebase --continue
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) &&
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test_cmp expect actual
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'
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test_expect_success 'rebase -r passes merge strategy options correctly' '
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rm -fr .git/rebase-* &&
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git reset --hard commit-new-file-F3-on-topic-branch &&
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test_commit merge-theirs &&
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git reset --hard HEAD^ &&
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test_commit some-other-commit &&
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test_tick &&
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git merge --no-ff merge-theirs &&
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FAKE_LINES="1 3 edit 4 5 7 8 9" git rebase -i -f -r -m \
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-s recursive --strategy-option=theirs HEAD~2 &&
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test_commit force-change-ours &&
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git rebase --continue
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'
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test_expect_success '--skip after failed fixup cleans commit message' '
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test_when_finished "test_might_fail git rebase --abort" &&
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git checkout -b with-conflicting-fixup &&
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test_commit wants-fixup &&
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test_commit "fixup 1" wants-fixup.t 1 wants-fixup-1 &&
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test_commit "fixup 2" wants-fixup.t 2 wants-fixup-2 &&
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test_commit "fixup 3" wants-fixup.t 3 wants-fixup-3 &&
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test_must_fail env FAKE_LINES="1 fixup 2 squash 4" \
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git rebase -i HEAD~4 &&
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: now there is a conflict, and comments in the commit message &&
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test_commit_message HEAD <<-\EOF &&
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# This is a combination of 2 commits.
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# This is the 1st commit message:
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wants-fixup
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# The commit message #2 will be skipped:
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# fixup 1
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EOF
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: skip and continue &&
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echo "cp \"\$1\" .git/copy.txt" | write_script copy-editor.sh &&
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(test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) &&
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: the user should not have had to edit the commit message &&
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test_path_is_missing .git/copy.txt &&
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: now the comments in the commit message should have been cleaned up &&
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test_commit_message HEAD -m wants-fixup &&
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: now, let us ensure that "squash" is handled correctly &&
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git reset --hard wants-fixup-3 &&
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test_must_fail env FAKE_LINES="1 squash 2 squash 1 squash 3 squash 1" \
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git rebase -i HEAD~4 &&
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: the second squash failed, but there are two more in the chain &&
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(test_set_editor "$PWD/copy-editor.sh" &&
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test_must_fail git rebase --skip) &&
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: not the final squash, no need to edit the commit message &&
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test_path_is_missing .git/copy.txt &&
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: The first and third squashes succeeded, therefore: &&
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test_commit_message HEAD <<-\EOF &&
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# This is a combination of 3 commits.
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# This is the 1st commit message:
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wants-fixup
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# This is the commit message #2:
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fixup 1
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# This is the commit message #3:
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fixup 2
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EOF
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(test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) &&
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test_commit_message HEAD <<-\EOF &&
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wants-fixup
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fixup 1
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fixup 2
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EOF
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: Final squash failed, but there was still a squash &&
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head -n1 .git/copy.txt >first-line &&
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test_i18ngrep "# This is a combination of 3 commits" first-line &&
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test_i18ngrep "# This is the commit message #3:" .git/copy.txt
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'
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test_expect_success 'setup rerere database' '
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rm -fr .git/rebase-* &&
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git reset --hard commit-new-file-F3-on-topic-branch &&
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git checkout main &&
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test_commit "commit-new-file-F3" F3 3 &&
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test_config rerere.enabled true &&
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git update-ref refs/heads/topic commit-new-file-F3-on-topic-branch &&
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test_must_fail git rebase -m main topic &&
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echo "Resolved" >F2 &&
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cp F2 expected-F2 &&
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git add F2 &&
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test_must_fail git rebase --continue &&
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echo "Resolved" >F3 &&
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cp F3 expected-F3 &&
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git add F3 &&
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git rebase --continue &&
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git reset --hard topic@{1}
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'
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prepare () {
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rm -fr .git/rebase-* &&
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git reset --hard commit-new-file-F3-on-topic-branch &&
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git checkout main &&
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test_config rerere.enabled true
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}
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test_rerere_autoupdate () {
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action=$1 &&
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test_expect_success "rebase $action --continue remembers --rerere-autoupdate" '
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prepare &&
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test_must_fail git rebase $action --rerere-autoupdate main topic &&
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test_cmp expected-F2 F2 &&
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git diff-files --quiet &&
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test_must_fail git rebase --continue &&
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test_cmp expected-F3 F3 &&
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git diff-files --quiet &&
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git rebase --continue
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'
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test_expect_success "rebase $action --continue honors rerere.autoUpdate" '
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prepare &&
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test_config rerere.autoupdate true &&
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test_must_fail git rebase $action main topic &&
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test_cmp expected-F2 F2 &&
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git diff-files --quiet &&
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test_must_fail git rebase --continue &&
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test_cmp expected-F3 F3 &&
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git diff-files --quiet &&
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git rebase --continue
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'
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test_expect_success "rebase $action --continue remembers --no-rerere-autoupdate" '
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prepare &&
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test_config rerere.autoupdate true &&
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test_must_fail git rebase $action --no-rerere-autoupdate main topic &&
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test_cmp expected-F2 F2 &&
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test_must_fail git diff-files --quiet &&
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git add F2 &&
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test_must_fail git rebase --continue &&
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test_cmp expected-F3 F3 &&
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test_must_fail git diff-files --quiet &&
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git add F3 &&
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git rebase --continue
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'
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}
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test_rerere_autoupdate --apply
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test_rerere_autoupdate -m
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GIT_SEQUENCE_EDITOR=: && export GIT_SEQUENCE_EDITOR
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test_rerere_autoupdate -i
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unset GIT_SEQUENCE_EDITOR
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test_expect_success 'the todo command "break" works' '
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rm -f execed &&
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FAKE_LINES="break b exec_>execed" git rebase -i HEAD &&
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test_path_is_missing execed &&
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git rebase --continue &&
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test_path_is_missing execed &&
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git rebase --continue &&
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test_path_is_file execed
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'
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test_expect_success '--reschedule-failed-exec' '
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test_when_finished "git rebase --abort" &&
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test_must_fail git rebase -x false --reschedule-failed-exec HEAD^ &&
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grep "^exec false" .git/rebase-merge/git-rebase-todo &&
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git rebase --abort &&
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test_must_fail git -c rebase.rescheduleFailedExec=true \
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rebase -x false HEAD^ 2>err &&
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grep "^exec false" .git/rebase-merge/git-rebase-todo &&
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test_i18ngrep "has been rescheduled" err
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'
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test_expect_success 'rebase.rescheduleFailedExec only affects `rebase -i`' '
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test_config rebase.rescheduleFailedExec true &&
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test_must_fail git rebase -x false HEAD^ &&
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grep "^exec false" .git/rebase-merge/git-rebase-todo &&
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git rebase --abort &&
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git rebase HEAD^
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'
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test_expect_success 'rebase.rescheduleFailedExec=true & --no-reschedule-failed-exec' '
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test_when_finished "git rebase --abort" &&
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test_config rebase.rescheduleFailedExec true &&
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test_must_fail git rebase -x false --no-reschedule-failed-exec HEAD~2 &&
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test_must_fail git rebase --continue 2>err &&
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! grep "has been rescheduled" err
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'
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test_expect_success 'new rebase.rescheduleFailedExec=true setting in an ongoing rebase is ignored' '
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test_when_finished "git rebase --abort" &&
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test_must_fail git rebase -x false HEAD~2 &&
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test_config rebase.rescheduleFailedExec true &&
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test_must_fail git rebase --continue 2>err &&
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! grep "has been rescheduled" err
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'
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test_expect_success 'there is no --no-reschedule-failed-exec in an ongoing rebase' '
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test_when_finished "git rebase --abort" &&
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test_must_fail git rebase -x false HEAD~2 &&
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test_expect_code 129 git rebase --continue --no-reschedule-failed-exec &&
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test_expect_code 129 git rebase --edit-todo --no-reschedule-failed-exec
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'
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test_orig_head_helper () {
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test_when_finished 'git rebase --abort &&
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git checkout topic &&
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git reset --hard commit-new-file-F2-on-topic-branch' &&
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git update-ref -d ORIG_HEAD &&
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test_must_fail git rebase "$@" &&
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test_cmp_rev ORIG_HEAD commit-new-file-F2-on-topic-branch
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}
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test_orig_head () {
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type=$1
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test_expect_success "rebase $type sets ORIG_HEAD correctly" '
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git checkout topic &&
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git reset --hard commit-new-file-F2-on-topic-branch &&
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test_orig_head_helper $type main
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'
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test_expect_success "rebase $type <upstream> <branch> sets ORIG_HEAD correctly" '
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git checkout main &&
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test_orig_head_helper $type main topic
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'
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}
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test_orig_head --apply
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test_orig_head --merge
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test_done
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