struct tree **result)
{
int code, clean;
+ struct strbuf sb = STRBUF_INIT;
+
+ if (!o->call_depth && index_has_changes(&the_index, head, &sb)) {
+ err(o, _("Your local changes to the following files would be overwritten by merge:\n %s"),
+ sb.buf);
+ return -1;
+ }
if (o->subtree_shift) {
merge = shift_tree_object(head, merge, o->subtree_shift);
}
if (oid_eq(&common->object.oid, &merge->object.oid)) {
- struct strbuf sb = STRBUF_INIT;
-
- if (!o->call_depth && index_has_changes(&the_index, head, &sb)) {
- err(o, _("Your local changes to the following files would be overwritten by merge:\n %s"),
- sb.buf);
- return -1;
- }
output(o, 0, _("Already up to date!"));
*result = head;
return 1;
test_i18ngrep "Already up to date" out
'
-test_expect_failure 'recursive, when file has staged changes not matching HEAD nor what a merge would give' '
+test_expect_success 'recursive, when file has staged changes not matching HEAD nor what a merge would give' '
git reset --hard &&
git checkout B^0 &&
test_seq 1 10 >subdir/a &&
git add subdir/a &&
- # HEAD has no subdir/a; merge would write 1..11 to subdir/a;
- # Since subdir/a matches neither HEAD nor what the merge would write
- # to that file, the merge should fail to avoid overwriting what is
- # currently found in subdir/a
- test_must_fail git merge -s recursive E^0
+ # We have staged changes; merge should error out
+ test_must_fail git merge -s recursive E^0 2>err &&
+ test_i18ngrep "changes to the following files would be overwritten" err
'
-test_expect_failure 'recursive, when file has staged changes matching what a merge would give' '
+test_expect_success 'recursive, when file has staged changes matching what a merge would give' '
git reset --hard &&
git checkout B^0 &&
test_seq 1 11 >subdir/a &&
git add subdir/a &&
- # HEAD has no subdir/a; merge would write 1..11 to subdir/a;
- # Since subdir/a matches what the merge would write to that file,
- # the merge should be safe to proceed
- git merge -s recursive E^0
+ # We have staged changes; merge should error out
+ test_must_fail git merge -s recursive E^0 2>err &&
+ test_i18ngrep "changes to the following files would be overwritten" err
'
test_expect_success 'octopus, unrelated file touched' '
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_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