diff options
| -rw-r--r-- | builtin/notes.c | 11 | ||||
| -rwxr-xr-x | t/t3310-notes-merge-manual-resolve.sh | 76 |
2 files changed, 85 insertions, 2 deletions
diff --git a/builtin/notes.c b/builtin/notes.c index ee1df7030c..710a89da28 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -786,7 +786,7 @@ static int merge_abort(struct notes_merge_options *o) static int merge_commit(struct notes_merge_options *o) { struct strbuf msg = STRBUF_INIT; - unsigned char sha1[20]; + unsigned char sha1[20], parent_sha1[20]; struct notes_tree *t; struct commit *partial; struct pretty_print_context pretty_ctx; @@ -803,6 +803,11 @@ static int merge_commit(struct notes_merge_options *o) else if (parse_commit(partial)) die("Could not parse commit from NOTES_MERGE_PARTIAL."); + if (partial->parents) + hashcpy(parent_sha1, partial->parents->item->object.sha1); + else + hashclr(parent_sha1); + t = xcalloc(1, sizeof(struct notes_tree)); init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0); @@ -818,7 +823,9 @@ static int merge_commit(struct notes_merge_options *o) format_commit_message(partial, "%s", &msg, &pretty_ctx); strbuf_trim(&msg); strbuf_insert(&msg, 0, "notes: ", 7); - update_ref(msg.buf, o->local_ref, sha1, NULL, 0, DIE_ON_ERR); + update_ref(msg.buf, o->local_ref, sha1, + is_null_sha1(parent_sha1) ? NULL : parent_sha1, + 0, DIE_ON_ERR); free_notes(t); strbuf_release(&msg); diff --git a/t/t3310-notes-merge-manual-resolve.sh b/t/t3310-notes-merge-manual-resolve.sh index 287fab82d7..4ec4d11450 100755 --- a/t/t3310-notes-merge-manual-resolve.sh +++ b/t/t3310-notes-merge-manual-resolve.sh @@ -477,4 +477,80 @@ EOF verify_notes z ' +cp expect_notes_y expect_notes_m +cp expect_log_y expect_log_m + +test_expect_success 'redo merge of z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' ' + git update-ref refs/notes/m refs/notes/y && + test_must_fail git notes merge z >output && + # Output should point to where to resolve conflicts + grep -q "\\.git/NOTES_MERGE_WORKTREE" output && + # Inspect merge conflicts + ls .git/NOTES_MERGE_WORKTREE >output_conflicts && + test_cmp expect_conflicts output_conflicts && + ( for f in $(cat expect_conflicts); do + test_cmp "expect_conflict_$f" ".git/NOTES_MERGE_WORKTREE/$f" || + exit 1 + done ) && + # Verify that current notes tree (pre-merge) has not changed (m == y) + verify_notes y && + verify_notes m && + test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)" +' + +cp expect_notes_w expect_notes_m +cp expect_log_w expect_log_m + +test_expect_success 'reset notes ref m to somewhere else (w)' ' + git update-ref refs/notes/m refs/notes/w && + verify_notes m && + test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)" +' + +test_expect_success 'fail to finalize conflicting merge if underlying ref has moved in the meantime (m != NOTES_MERGE_PARTIAL^1)' ' + # Resolve conflicts + cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 <<EOF && +y and z notes on 1st commit +EOF + cat >.git/NOTES_MERGE_WORKTREE/$commit_sha4 <<EOF && +y and z notes on 4th commit +EOF + # Fail to finalize merge + test_must_fail git notes merge --commit >output 2>&1 && + # .git/NOTES_MERGE_* must remain + test -f .git/NOTES_MERGE_PARTIAL && + test -f .git/NOTES_MERGE_REF && + test -f .git/NOTES_MERGE_WORKTREE/$commit_sha1 && + test -f .git/NOTES_MERGE_WORKTREE/$commit_sha2 && + test -f .git/NOTES_MERGE_WORKTREE/$commit_sha3 && + test -f .git/NOTES_MERGE_WORKTREE/$commit_sha4 && + # Refs are unchanged + test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)" + test "$(git rev-parse refs/notes/y)" = "$(git rev-parse NOTES_MERGE_PARTIAL^1)" + test "$(git rev-parse refs/notes/m)" != "$(git rev-parse NOTES_MERGE_PARTIAL^1)" + # Mention refs/notes/m, and its current and expected value in output + grep -q "refs/notes/m" output && + grep -q "$(git rev-parse refs/notes/m)" output && + grep -q "$(git rev-parse NOTES_MERGE_PARTIAL^1)" output && + # Verify that other notes refs has not changed (w, x, y and z) + verify_notes w && + verify_notes x && + verify_notes y && + verify_notes z +' + +test_expect_success 'resolve situation by aborting the notes merge' ' + git notes merge --abort && + # No .git/NOTES_MERGE_* files left + test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_cmp /dev/null output && + # m has not moved (still == w) + test "$(git rev-parse refs/notes/m)" = "$(git rev-parse refs/notes/w)" + # Verify that other notes refs has not changed (w, x, y and z) + verify_notes w && + verify_notes x && + verify_notes y && + verify_notes z +' + test_done |