mirror of
https://github.com/git/git
synced 2024-10-30 04:01:21 +00:00
0d6504cc3c
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
313 lines
9.2 KiB
Bash
Executable file
313 lines
9.2 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
test_description='test aborting in-progress merges
|
|
|
|
Set up repo with conflicting and non-conflicting branches:
|
|
|
|
There are three files foo/bar/baz, and the following graph illustrates the
|
|
content of these files in each commit:
|
|
|
|
# foo/bar/baz --- foo/bar/bazz <-- master
|
|
# \
|
|
# --- foo/barf/bazf <-- conflict_branch
|
|
# \
|
|
# --- foo/bart/baz <-- clean_branch
|
|
|
|
Next, test git merge --abort with the following variables:
|
|
- before/after successful merge (should fail when not in merge context)
|
|
- with/without conflicts
|
|
- clean/dirty index before merge
|
|
- clean/dirty worktree before merge
|
|
- dirty index before merge matches contents on remote branch
|
|
- changed/unchanged worktree after merge
|
|
- changed/unchanged index after merge
|
|
'
|
|
. ./test-lib.sh
|
|
|
|
test_expect_success 'setup' '
|
|
# Create the above repo
|
|
echo foo > foo &&
|
|
echo bar > bar &&
|
|
echo baz > baz &&
|
|
git add foo bar baz &&
|
|
git commit -m initial &&
|
|
echo bazz > baz &&
|
|
git commit -a -m "second" &&
|
|
git checkout -b conflict_branch HEAD^ &&
|
|
echo barf > bar &&
|
|
echo bazf > baz &&
|
|
git commit -a -m "conflict" &&
|
|
git checkout -b clean_branch HEAD^ &&
|
|
echo bart > bar &&
|
|
git commit -a -m "clean" &&
|
|
git checkout master
|
|
'
|
|
|
|
pre_merge_head="$(git rev-parse HEAD)"
|
|
|
|
test_expect_success 'fails without MERGE_HEAD (unstarted merge)' '
|
|
test_must_fail git merge --abort 2>output &&
|
|
grep -q MERGE_HEAD output &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)"
|
|
'
|
|
|
|
test_expect_success 'fails without MERGE_HEAD (completed merge)' '
|
|
git merge clean_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
# Merge successfully completed
|
|
post_merge_head="$(git rev-parse HEAD)" &&
|
|
test_must_fail git merge --abort 2>output &&
|
|
grep -q MERGE_HEAD output &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$post_merge_head" = "$(git rev-parse HEAD)"
|
|
'
|
|
|
|
test_expect_success 'Forget previous merge' '
|
|
git reset --hard "$pre_merge_head"
|
|
'
|
|
|
|
test_expect_success 'Abort after --no-commit' '
|
|
# Redo merge, but stop before creating merge commit
|
|
git merge --no-commit clean_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
# Abort non-conflicting merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff)" &&
|
|
test -z "$(git diff --staged)"
|
|
'
|
|
|
|
test_expect_success 'Abort after conflicts' '
|
|
# Create conflicting merge
|
|
test_must_fail git merge conflict_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
# Abort conflicting merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff)" &&
|
|
test -z "$(git diff --staged)"
|
|
'
|
|
|
|
test_expect_success 'Clean merge with dirty index fails' '
|
|
echo xyzzy >> foo &&
|
|
git add foo &&
|
|
git diff --staged > expect &&
|
|
test_must_fail git merge clean_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff)" &&
|
|
git diff --staged > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Conflicting merge with dirty index fails' '
|
|
test_must_fail git merge conflict_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff)" &&
|
|
git diff --staged > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Reset index (but preserve worktree changes)' '
|
|
git reset "$pre_merge_head" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Abort clean merge with non-conflicting dirty worktree' '
|
|
git merge --no-commit clean_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
# Abort merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff --staged)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Abort conflicting merge with non-conflicting dirty worktree' '
|
|
test_must_fail git merge conflict_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
# Abort merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff --staged)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Reset worktree changes' '
|
|
git reset --hard "$pre_merge_head"
|
|
'
|
|
|
|
test_expect_success 'Fail clean merge with conflicting dirty worktree' '
|
|
echo xyzzy >> bar &&
|
|
git diff > expect &&
|
|
test_must_fail git merge --no-commit clean_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff --staged)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Fail conflicting merge with conflicting dirty worktree' '
|
|
test_must_fail git merge conflict_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff --staged)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Reset worktree changes' '
|
|
git reset --hard "$pre_merge_head"
|
|
'
|
|
|
|
test_expect_success 'Fail clean merge with matching dirty worktree' '
|
|
echo bart > bar &&
|
|
git diff > expect &&
|
|
test_must_fail git merge --no-commit clean_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff --staged)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Abort clean merge with matching dirty index' '
|
|
git add bar &&
|
|
git diff --staged > expect &&
|
|
git merge --no-commit clean_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
### When aborting the merge, git will discard all staged changes,
|
|
### including those that were staged pre-merge. In other words,
|
|
### --abort will LOSE any staged changes (the staged changes that
|
|
### are lost must match the merge result, or the merge would not
|
|
### have been allowed to start). Change expectations accordingly:
|
|
rm expect &&
|
|
touch expect &&
|
|
# Abort merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
git diff --staged > actual &&
|
|
test_cmp expect actual &&
|
|
test -z "$(git diff)"
|
|
'
|
|
|
|
test_expect_success 'Reset worktree changes' '
|
|
git reset --hard "$pre_merge_head"
|
|
'
|
|
|
|
test_expect_success 'Fail conflicting merge with matching dirty worktree' '
|
|
echo barf > bar &&
|
|
git diff > expect &&
|
|
test_must_fail git merge conflict_branch &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
test -z "$(git diff --staged)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual
|
|
'
|
|
|
|
test_expect_success 'Abort conflicting merge with matching dirty index' '
|
|
git add bar &&
|
|
git diff --staged > expect &&
|
|
test_must_fail git merge conflict_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
### When aborting the merge, git will discard all staged changes,
|
|
### including those that were staged pre-merge. In other words,
|
|
### --abort will LOSE any staged changes (the staged changes that
|
|
### are lost must match the merge result, or the merge would not
|
|
### have been allowed to start). Change expectations accordingly:
|
|
rm expect &&
|
|
touch expect &&
|
|
# Abort merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
git diff --staged > actual &&
|
|
test_cmp expect actual &&
|
|
test -z "$(git diff)"
|
|
'
|
|
|
|
test_expect_success 'Reset worktree changes' '
|
|
git reset --hard "$pre_merge_head"
|
|
'
|
|
|
|
test_expect_success 'Abort merge with pre- and post-merge worktree changes' '
|
|
# Pre-merge worktree changes
|
|
echo xyzzy > foo &&
|
|
echo barf > bar &&
|
|
git add bar &&
|
|
git diff > expect &&
|
|
git diff --staged > expect-staged &&
|
|
# Perform merge
|
|
test_must_fail git merge conflict_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
# Post-merge worktree changes
|
|
echo yzxxz > foo &&
|
|
echo blech > baz &&
|
|
### When aborting the merge, git will discard staged changes (bar)
|
|
### and unmerged changes (baz). Other changes that are neither
|
|
### staged nor marked as unmerged (foo), will be preserved. For
|
|
### these changed, git cannot tell pre-merge changes apart from
|
|
### post-merge changes, so the post-merge changes will be
|
|
### preserved. Change expectations accordingly:
|
|
git diff -- foo > expect &&
|
|
rm expect-staged &&
|
|
touch expect-staged &&
|
|
# Abort merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual &&
|
|
git diff --staged > actual-staged &&
|
|
test_cmp expect-staged actual-staged
|
|
'
|
|
|
|
test_expect_success 'Reset worktree changes' '
|
|
git reset --hard "$pre_merge_head"
|
|
'
|
|
|
|
test_expect_success 'Abort merge with pre- and post-merge index changes' '
|
|
# Pre-merge worktree changes
|
|
echo xyzzy > foo &&
|
|
echo barf > bar &&
|
|
git add bar &&
|
|
git diff > expect &&
|
|
git diff --staged > expect-staged &&
|
|
# Perform merge
|
|
test_must_fail git merge conflict_branch &&
|
|
test -f .git/MERGE_HEAD &&
|
|
# Post-merge worktree changes
|
|
echo yzxxz > foo &&
|
|
echo blech > baz &&
|
|
git add foo bar &&
|
|
### When aborting the merge, git will discard all staged changes
|
|
### (foo, bar and baz), and no changes will be preserved. Whether
|
|
### the changes were staged pre- or post-merge does not matter
|
|
### (except for not preventing starting the merge).
|
|
### Change expectations accordingly:
|
|
rm expect expect-staged &&
|
|
touch expect &&
|
|
touch expect-staged &&
|
|
# Abort merge
|
|
git merge --abort &&
|
|
test ! -f .git/MERGE_HEAD &&
|
|
test "$pre_merge_head" = "$(git rev-parse HEAD)" &&
|
|
git diff > actual &&
|
|
test_cmp expect actual &&
|
|
git diff --staged > actual-staged &&
|
|
test_cmp expect-staged actual-staged
|
|
'
|
|
|
|
test_done
|