git/t/t3418-rebase-continue.sh
Phillip Wood cd1528ef8e rebase --apply: set ORIG_HEAD correctly
At the start of a rebase, ORIG_HEAD is updated to the tip of the
branch being rebased. Unfortunately reset_head() always uses the
current value of HEAD for this which is incorrect if the rebase is
started with "git rebase <upstream> <branch>" as in that case
ORIG_HEAD should be updated to <branch>. This only affects the "apply"
backend as the "merge" backend does not yet use reset_head() for the
initial checkout. Fix this by passing in orig_head when calling
reset_head() and add some regression tests.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-26 12:08:53 -08:00

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#!/bin/sh
test_description='git rebase --continue tests'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-rebase.sh
set_fake_editor
test_expect_success 'setup' '
test_commit "commit-new-file-F1" F1 1 &&
test_commit "commit-new-file-F2" F2 2 &&
git checkout -b topic HEAD^ &&
test_commit "commit-new-file-F2-on-topic-branch" F2 22 &&
git checkout main
'
test_expect_success 'merge based rebase --continue with works with touched file' '
rm -fr .git/rebase-* &&
git reset --hard &&
git checkout main &&
FAKE_LINES="edit 1" git rebase -i HEAD^ &&
test-tool chmtime =-60 F1 &&
git rebase --continue
'
test_expect_success 'merge based rebase --continue removes .git/MERGE_MSG' '
git checkout -f --detach topic &&
test_must_fail git rebase --onto main HEAD^ &&
git read-tree --reset -u HEAD &&
test_path_is_file .git/MERGE_MSG &&
git rebase --continue &&
test_path_is_missing .git/MERGE_MSG
'
test_expect_success 'apply based rebase --continue works with touched file' '
rm -fr .git/rebase-* &&
git reset --hard &&
git checkout main &&
test_must_fail git rebase --apply --onto main main topic &&
echo "Resolved" >F2 &&
git add F2 &&
test-tool chmtime =-60 F1 &&
git rebase --continue
'
test_expect_success 'rebase --continue can not be used with other options' '
test_must_fail git rebase -v --continue &&
test_must_fail git rebase --continue -v
'
test_expect_success 'rebase --continue remembers merge strategy and options' '
rm -fr .git/rebase-* &&
git reset --hard commit-new-file-F2-on-topic-branch &&
test_commit "commit-new-file-F3-on-topic-branch" F3 32 &&
test_when_finished "rm -fr test-bin funny.was.run" &&
mkdir test-bin &&
cat >test-bin/git-merge-funny <<-EOF &&
#!$SHELL_PATH
case "\$1" in --opt) ;; *) exit 2 ;; esac
shift &&
>funny.was.run &&
exec git merge-recursive "\$@"
EOF
chmod +x test-bin/git-merge-funny &&
(
PATH=./test-bin:$PATH &&
test_must_fail git rebase -s funny -Xopt main topic
) &&
test -f funny.was.run &&
rm funny.was.run &&
echo "Resolved" >F2 &&
git add F2 &&
(
PATH=./test-bin:$PATH &&
git rebase --continue
) &&
test -f funny.was.run
'
test_expect_success 'rebase -i --continue handles merge strategy and options' '
rm -fr .git/rebase-* &&
git reset --hard commit-new-file-F2-on-topic-branch &&
test_commit "commit-new-file-F3-on-topic-branch-for-dash-i" F3 32 &&
test_when_finished "rm -fr test-bin funny.was.run funny.args" &&
mkdir test-bin &&
cat >test-bin/git-merge-funny <<-EOF &&
#!$SHELL_PATH
echo "\$@" >>funny.args
case "\$1" in --opt) ;; *) exit 2 ;; esac
case "\$2" in --foo) ;; *) exit 2 ;; esac
case "\$4" in --) ;; *) exit 2 ;; esac
shift 2 &&
>funny.was.run &&
exec git merge-recursive "\$@"
EOF
chmod +x test-bin/git-merge-funny &&
(
PATH=./test-bin:$PATH &&
test_must_fail git rebase -i -s funny -Xopt -Xfoo main topic
) &&
test -f funny.was.run &&
rm funny.was.run &&
echo "Resolved" >F2 &&
git add F2 &&
(
PATH=./test-bin:$PATH &&
git rebase --continue
) &&
test -f funny.was.run
'
test_expect_success 'rebase -r passes merge strategy options correctly' '
rm -fr .git/rebase-* &&
git reset --hard commit-new-file-F3-on-topic-branch &&
test_commit merge-theirs &&
git reset --hard HEAD^ &&
test_commit some-other-commit &&
test_tick &&
git merge --no-ff merge-theirs &&
FAKE_LINES="1 3 edit 4 5 7 8 9" git rebase -i -f -r -m \
-s recursive --strategy-option=theirs HEAD~2 &&
test_commit force-change-ours &&
git rebase --continue
'
test_expect_success '--skip after failed fixup cleans commit message' '
test_when_finished "test_might_fail git rebase --abort" &&
git checkout -b with-conflicting-fixup &&
test_commit wants-fixup &&
test_commit "fixup! wants-fixup" wants-fixup.t 1 wants-fixup-1 &&
test_commit "fixup! wants-fixup" wants-fixup.t 2 wants-fixup-2 &&
test_commit "fixup! wants-fixup" wants-fixup.t 3 wants-fixup-3 &&
test_must_fail env FAKE_LINES="1 fixup 2 squash 4" \
git rebase -i HEAD~4 &&
: now there is a conflict, and comments in the commit message &&
git show HEAD >out &&
grep "fixup! wants-fixup" out &&
: skip and continue &&
echo "cp \"\$1\" .git/copy.txt" | write_script copy-editor.sh &&
(test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) &&
: the user should not have had to edit the commit message &&
test_path_is_missing .git/copy.txt &&
: now the comments in the commit message should have been cleaned up &&
git show HEAD >out &&
! grep "fixup! wants-fixup" out &&
: now, let us ensure that "squash" is handled correctly &&
git reset --hard wants-fixup-3 &&
test_must_fail env FAKE_LINES="1 squash 4 squash 2 squash 4" \
git rebase -i HEAD~4 &&
: the first squash failed, but there are two more in the chain &&
(test_set_editor "$PWD/copy-editor.sh" &&
test_must_fail git rebase --skip) &&
: not the final squash, no need to edit the commit message &&
test_path_is_missing .git/copy.txt &&
: The first squash was skipped, therefore: &&
git show HEAD >out &&
test_i18ngrep "# This is a combination of 2 commits" out &&
test_i18ngrep "# This is the commit message #2:" out &&
(test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) &&
git show HEAD >out &&
test_i18ngrep ! "# This is a combination" out &&
: Final squash failed, but there was still a squash &&
test_i18ngrep "# This is a combination of 2 commits" .git/copy.txt &&
test_i18ngrep "# This is the commit message #2:" .git/copy.txt
'
test_expect_success 'setup rerere database' '
rm -fr .git/rebase-* &&
git reset --hard commit-new-file-F3-on-topic-branch &&
git checkout main &&
test_commit "commit-new-file-F3" F3 3 &&
test_config rerere.enabled true &&
git update-ref refs/heads/topic commit-new-file-F3-on-topic-branch &&
test_must_fail git rebase -m main topic &&
echo "Resolved" >F2 &&
cp F2 expected-F2 &&
git add F2 &&
test_must_fail git rebase --continue &&
echo "Resolved" >F3 &&
cp F3 expected-F3 &&
git add F3 &&
git rebase --continue &&
git reset --hard topic@{1}
'
prepare () {
rm -fr .git/rebase-* &&
git reset --hard commit-new-file-F3-on-topic-branch &&
git checkout main &&
test_config rerere.enabled true
}
test_rerere_autoupdate () {
action=$1 &&
test_expect_success "rebase $action --continue remembers --rerere-autoupdate" '
prepare &&
test_must_fail git rebase $action --rerere-autoupdate main topic &&
test_cmp expected-F2 F2 &&
git diff-files --quiet &&
test_must_fail git rebase --continue &&
test_cmp expected-F3 F3 &&
git diff-files --quiet &&
git rebase --continue
'
test_expect_success "rebase $action --continue honors rerere.autoUpdate" '
prepare &&
test_config rerere.autoupdate true &&
test_must_fail git rebase $action main topic &&
test_cmp expected-F2 F2 &&
git diff-files --quiet &&
test_must_fail git rebase --continue &&
test_cmp expected-F3 F3 &&
git diff-files --quiet &&
git rebase --continue
'
test_expect_success "rebase $action --continue remembers --no-rerere-autoupdate" '
prepare &&
test_config rerere.autoupdate true &&
test_must_fail git rebase $action --no-rerere-autoupdate main topic &&
test_cmp expected-F2 F2 &&
test_must_fail git diff-files --quiet &&
git add F2 &&
test_must_fail git rebase --continue &&
test_cmp expected-F3 F3 &&
test_must_fail git diff-files --quiet &&
git add F3 &&
git rebase --continue
'
}
test_rerere_autoupdate --apply
test_rerere_autoupdate -m
GIT_SEQUENCE_EDITOR=: && export GIT_SEQUENCE_EDITOR
test_rerere_autoupdate -i
unset GIT_SEQUENCE_EDITOR
test_expect_success 'the todo command "break" works' '
rm -f execed &&
FAKE_LINES="break b exec_>execed" git rebase -i HEAD &&
test_path_is_missing execed &&
git rebase --continue &&
test_path_is_missing execed &&
git rebase --continue &&
test_path_is_file execed
'
test_expect_success '--reschedule-failed-exec' '
test_when_finished "git rebase --abort" &&
test_must_fail git rebase -x false --reschedule-failed-exec HEAD^ &&
grep "^exec false" .git/rebase-merge/git-rebase-todo &&
git rebase --abort &&
test_must_fail git -c rebase.rescheduleFailedExec=true \
rebase -x false HEAD^ 2>err &&
grep "^exec false" .git/rebase-merge/git-rebase-todo &&
test_i18ngrep "has been rescheduled" err
'
test_expect_success 'rebase.rescheduleFailedExec only affects `rebase -i`' '
test_config rebase.rescheduleFailedExec true &&
test_must_fail git rebase -x false HEAD^ &&
grep "^exec false" .git/rebase-merge/git-rebase-todo &&
git rebase --abort &&
git rebase HEAD^
'
test_expect_success 'rebase.rescheduleFailedExec=true & --no-reschedule-failed-exec' '
test_when_finished "git rebase --abort" &&
test_config rebase.rescheduleFailedExec true &&
test_must_fail git rebase -x false --no-reschedule-failed-exec HEAD~2 &&
test_must_fail git rebase --continue 2>err &&
! grep "has been rescheduled" err
'
test_expect_success 'new rebase.rescheduleFailedExec=true setting in an ongoing rebase is ignored' '
test_when_finished "git rebase --abort" &&
test_must_fail git rebase -x false HEAD~2 &&
test_config rebase.rescheduleFailedExec true &&
test_must_fail git rebase --continue 2>err &&
! grep "has been rescheduled" err
'
test_expect_success 'there is no --no-reschedule-failed-exec in an ongoing rebase' '
test_when_finished "git rebase --abort" &&
test_must_fail git rebase -x false HEAD~2 &&
test_expect_code 129 git rebase --continue --no-reschedule-failed-exec &&
test_expect_code 129 git rebase --edit-todo --no-reschedule-failed-exec
'
test_orig_head_helper () {
test_when_finished 'git rebase --abort &&
git checkout topic &&
git reset --hard commit-new-file-F2-on-topic-branch' &&
git update-ref -d ORIG_HEAD &&
test_must_fail git rebase "$@" &&
test_cmp_rev ORIG_HEAD commit-new-file-F2-on-topic-branch
}
test_orig_head () {
type=$1
test_expect_success "rebase $type sets ORIG_HEAD correctly" '
git checkout topic &&
git reset --hard commit-new-file-F2-on-topic-branch &&
test_orig_head_helper $type main
'
test_expect_success "rebase $type <upstream> <branch> sets ORIG_HEAD correctly" '
git checkout main &&
test_orig_head_helper $type main topic
'
}
test_orig_head --apply
test_orig_head --merge
test_done