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https://github.com/git/git.git
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e032abd5a0
git rebase keeps a list that maps the OID of each commit before it was rebased to the OID of the equivalent commit after the rebase. This list is used to drive the "post-rewrite" hook that is called at the end of a successful rebase. When a rebase stops for the user to resolve merge conflicts the OID of the commit being picked is written to ".git/rebase-merge/stopped-sha". Then when the rebase is continued that OID is added to the list of rewritten commits. Unfortunately if a commit cannot be picked because it would overwrite an untracked file we still write the "stopped-sha1" file. This means that when the rebase is continued the commit is added into the list of rewritten commits even though it has not been picked yet. Fix this by not calling error_with_patch() for failed commands. The pick has failed so there is nothing to commit and therefore we do not want to set up the state files for committing staged changes when the rebase continues. This change means we no-longer write a patch for the failed command or display the error message printed by error_with_patch(). As the command has failed the patch isn't really useful and in any case the user can inspect the commit associated with the failed command by inspecting REBASE_HEAD. Unless the user has disabled it we already print an advice message that is more helpful than the message from error_with_patch() which the user will still see. Even if the advice is disabled the user will see the messages from the merge machinery detailing the problem. The code to add a failed command back into the todo list is duplicated between pick_one_commit() and the loop in pick_commits(). Both sites print advice about the command being rescheduled, decrement the current item and save the todo list. To avoid duplicating this code pick_one_commit() is modified to set a flag to indicate that the command should be rescheduled in the main loop. This simplifies things as only the remaining copy of the code needs to be modified to set REBASE_HEAD rather than calling error_with_patch(). Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
314 lines
7.4 KiB
Bash
Executable File
314 lines
7.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2010 Thomas Rast
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#
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test_description='Test the post-rewrite hook.'
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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_expect_success 'setup' '
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test_commit A foo A &&
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test_commit B foo B &&
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test_commit C foo C &&
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test_commit D foo D &&
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git checkout A^0 &&
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test_commit E bar E &&
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test_commit F foo F &&
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git checkout B &&
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git merge E &&
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git tag merge-E &&
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test_commit G G &&
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test_commit H H &&
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test_commit I I &&
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git checkout main &&
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test_hook --setup post-rewrite <<-EOF
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echo \$@ > "$TRASH_DIRECTORY"/post-rewrite.args
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cat > "$TRASH_DIRECTORY"/post-rewrite.data
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EOF
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'
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clear_hook_input () {
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rm -f post-rewrite.args post-rewrite.data
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}
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verify_hook_input () {
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test_cmp expected.args "$TRASH_DIRECTORY"/post-rewrite.args &&
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test_cmp expected.data "$TRASH_DIRECTORY"/post-rewrite.data
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}
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test_expect_success 'git commit --amend' '
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clear_hook_input &&
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echo "D new message" > newmsg &&
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oldsha=$(git rev-parse HEAD^0) &&
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git commit -Fnewmsg --amend &&
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echo amend > expected.args &&
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echo $oldsha $(git rev-parse HEAD^0) > expected.data &&
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verify_hook_input
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'
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test_expect_success 'git commit --amend --no-post-rewrite' '
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clear_hook_input &&
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echo "D new message again" > newmsg &&
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git commit --no-post-rewrite -Fnewmsg --amend &&
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test ! -f post-rewrite.args &&
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test ! -f post-rewrite.data
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'
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test_expect_success 'git rebase --apply' '
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git reset --hard D &&
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clear_hook_input &&
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test_must_fail git rebase --apply --onto A B &&
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echo C > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase --apply --skip' '
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git reset --hard D &&
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clear_hook_input &&
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test_must_fail git rebase --apply --onto A B &&
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test_must_fail git rebase --skip &&
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echo D > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase --apply --skip the last one' '
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git reset --hard F &&
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clear_hook_input &&
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test_must_fail git rebase --apply --onto D A &&
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git rebase --skip &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse E) $(git rev-parse HEAD)
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$(git rev-parse F) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -m' '
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git reset --hard D &&
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clear_hook_input &&
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test_must_fail git rebase -m --onto A B &&
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echo C > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -m --skip' '
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git reset --hard D &&
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clear_hook_input &&
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test_must_fail git rebase -m --onto A B &&
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test_must_fail git rebase --skip &&
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echo D > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase with implicit use of merge backend' '
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git reset --hard D &&
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clear_hook_input &&
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test_must_fail git rebase --keep-empty --onto A B &&
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echo C > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase --skip with implicit use of merge backend' '
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git reset --hard D &&
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clear_hook_input &&
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test_must_fail git rebase --keep-empty --onto A B &&
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test_must_fail git rebase --skip &&
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echo D > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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. "$TEST_DIRECTORY"/lib-rebase.sh
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set_fake_editor
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# Helper to work around the lack of one-shot exporting for
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# test_must_fail (as it is a shell function)
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test_fail_interactive_rebase () {
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(
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FAKE_LINES="$1" &&
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shift &&
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export FAKE_LINES &&
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test_must_fail git rebase -i "$@"
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)
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}
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test_expect_success 'git rebase with failed pick' '
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clear_hook_input &&
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cat >todo <<-\EOF &&
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exec >bar
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merge -C merge-E E
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exec >G
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pick G
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exec >H 2>I
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pick H
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fixup I
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EOF
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(
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set_replace_editor todo &&
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test_must_fail git rebase -i D D 2>err
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) &&
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grep "would be overwritten" err &&
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rm bar &&
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test_must_fail git rebase --continue 2>err &&
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grep "would be overwritten" err &&
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rm G &&
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test_must_fail git rebase --continue 2>err &&
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grep "would be overwritten" err &&
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rm H &&
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test_must_fail git rebase --continue 2>err &&
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grep "would be overwritten" err &&
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rm I &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse merge-E) $(git rev-parse HEAD~2)
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$(git rev-parse G) $(git rev-parse HEAD~1)
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$(git rev-parse H) $(git rev-parse HEAD)
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$(git rev-parse I) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -i (unchanged)' '
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git reset --hard D &&
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clear_hook_input &&
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test_fail_interactive_rebase "1 2" --onto A B &&
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echo C > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -i (skip)' '
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git reset --hard D &&
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clear_hook_input &&
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test_fail_interactive_rebase "2" --onto A B &&
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echo D > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -i (squash)' '
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git reset --hard D &&
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clear_hook_input &&
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test_fail_interactive_rebase "1 squash 2" --onto A B &&
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echo C > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -i (fixup without conflict)' '
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git reset --hard D &&
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clear_hook_input &&
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FAKE_LINES="1 fixup 2" git rebase -i B &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -i (double edit)' '
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git reset --hard D &&
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clear_hook_input &&
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FAKE_LINES="edit 1 edit 2" git rebase -i B &&
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git rebase --continue &&
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echo something > foo &&
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git add foo &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_expect_success 'git rebase -i (exec)' '
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git reset --hard D &&
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clear_hook_input &&
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FAKE_LINES="edit 1 exec_false 2" git rebase -i B &&
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echo something >bar &&
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git add bar &&
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# Fails because of exec false
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test_must_fail git rebase --continue &&
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git rebase --continue &&
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echo rebase >expected.args &&
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cat >expected.data <<-EOF &&
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$(git rev-parse C) $(git rev-parse HEAD^)
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$(git rev-parse D) $(git rev-parse HEAD)
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EOF
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verify_hook_input
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'
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test_done
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