From 6abb3655efe364cf0375b5cdae2729af7562ed45 Mon Sep 17 00:00:00 2001 From: Johan Herland Date: Tue, 9 Nov 2010 22:49:52 +0100 Subject: git notes merge: Manual conflict resolution, part 2/2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When the notes merge conflicts in .git/NOTES_MERGE_WORKTREE have been resolved, we need to record a new notes commit on the appropriate notes ref with the resolved notes. This patch implements 'git notes merge --commit' which the user should run after resolving conflicts in the notes merge worktree. This command finalizes the notes merge by recombining the partial notes tree from part 1 with the now-resolved conflicts in the notes merge worktree in a merge commit, and updating the appropriate ref to this merge commit. In order to correctly finalize the merge, we need to keep track of three things: - The partial merge result from part 1, containing the auto-merged notes. This is now stored into a ref called .git/NOTES_MERGE_PARTIAL. - The unmerged notes. These are already stored in .git/NOTES_MERGE_WORKTREE, thanks to part 1. - The notes ref to be updated by the finalized merge result. This is now stored in a symref called .git/NOTES_MERGE_REF. In addition to "git notes merge --commit", which uses the above details to create the finalized notes merge commit, this patch also implements "git notes merge --reset", which aborts the ongoing notes merge by simply removing the files/directory described above. FTR, "git notes merge --commit" reuses "git notes merge --reset" to remove the information described above (.git/NOTES_MERGE_*) after the notes merge have been successfully finalized. The patch also contains documentation and testcases for the two new options. This patch has been improved by the following contributions: - Ævar Arnfjörð Bjarmason: Fix nonsense sentence in --commit description - Sverre Rabbelier: Rename --reset to --abort Thanks-to: Ævar Arnfjörð Bjarmason Thanks-to: Sverre Rabbelier Signed-off-by: Johan Herland Signed-off-by: Junio C Hamano --- t/t3310-notes-merge-manual-resolve.sh | 176 ++++++++++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) (limited to 't') diff --git a/t/t3310-notes-merge-manual-resolve.sh b/t/t3310-notes-merge-manual-resolve.sh index eadb6b7df6..0ec315aa9b 100755 --- a/t/t3310-notes-merge-manual-resolve.sh +++ b/t/t3310-notes-merge-manual-resolve.sh @@ -171,6 +171,7 @@ cp expect_notes_y expect_notes_m cp expect_log_y expect_log_m git rev-parse refs/notes/y > pre_merge_y +git rev-parse refs/notes/z > pre_merge_z test_expect_success 'merge z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' ' git update-ref refs/notes/m refs/notes/y && @@ -289,4 +290,179 @@ test_expect_success 'can do merge without conflicts even if previous merge is un verify_notes y ' +cat <expect_notes_m +021faa20e931fb48986ffc6282b4bb05553ac946 $commit_sha4 +5772f42408c0dd6f097a7ca2d24de0e78d1c46b1 $commit_sha3 +283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2 +0a59e787e6d688aa6309e56e8c1b89431a0fc1c1 $commit_sha1 +EOF + +cat >expect_log_m < m)' ' + # Resolve conflicts and finalize merge + cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 <.git/NOTES_MERGE_WORKTREE/$commit_sha4 <output 2>/dev/null && + test_cmp /dev/null output && + # Merge commit has pre-merge y and pre-merge z as parents + test "$(git rev-parse refs/notes/m^1)" = "$(cat pre_merge_y)" && + test "$(git rev-parse refs/notes/m^2)" = "$(cat pre_merge_z)" && + # Merge commit mentions the notes refs merged + git log -1 --format=%B refs/notes/m > merge_commit_msg && + grep -q refs/notes/m merge_commit_msg && + grep -q refs/notes/z merge_commit_msg && + # Verify contents of merge result + verify_notes m && + # Verify that other notes refs has not changed (w, x, y and z) + verify_notes w && + verify_notes x && + verify_notes y && + verify_notes z +' + +cat >expect_conflict_$commit_sha4 <>>>>>> refs/notes/z +EOF + +cp expect_notes_y expect_notes_m +cp expect_log_y expect_log_m + +git rev-parse refs/notes/y > pre_merge_y +git rev-parse refs/notes/z > pre_merge_z + +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 && + git config core.notesRef refs/notes/m && + 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)" = "$(cat pre_merge_y)" +' + +test_expect_success 'abort notes merge' ' + git notes merge --abort && + # No .git/NOTES_MERGE_* files left + test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_cmp /dev/null output && + # m has not moved (still == y) + test "$(git rev-parse refs/notes/m)" = "$(cat pre_merge_y)" + # 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 +' + +git rev-parse refs/notes/y > pre_merge_y +git rev-parse refs/notes/z > pre_merge_z + +test_expect_success 'redo merge of z into m (== y) with default ("manual") resolver => Conflicting 3-way merge' ' + 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)" +' + +cat <expect_notes_m +304dfb4325cf243025b9957486eb605a9b51c199 $commit_sha5 +283b48219aee9a4105f6cab337e789065c82c2b9 $commit_sha2 +0a59e787e6d688aa6309e56e8c1b89431a0fc1c1 $commit_sha1 +EOF + +cat >expect_log_m < m)' ' + # Resolve one conflict + cat >.git/NOTES_MERGE_WORKTREE/$commit_sha1 < .git/NOTES_MERGE_WORKTREE/$commit_sha5 && + # Finalize merge + git notes merge --commit && + # No .git/NOTES_MERGE_* files left + test_must_fail ls .git/NOTES_MERGE_* >output 2>/dev/null && + test_cmp /dev/null output && + # Merge commit has pre-merge y and pre-merge z as parents + test "$(git rev-parse refs/notes/m^1)" = "$(cat pre_merge_y)" && + test "$(git rev-parse refs/notes/m^2)" = "$(cat pre_merge_z)" && + # Merge commit mentions the notes refs merged + git log -1 --format=%B refs/notes/m > merge_commit_msg && + grep -q refs/notes/m merge_commit_msg && + grep -q refs/notes/z merge_commit_msg && + # Verify contents of merge result + verify_notes m && + # 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 -- cgit v1.2.3