rebase --abort: do not update branch ref

If a non-interactive rebase of a ref fails at commit X and is aborted by
the user, the ref will be updated twice. First to point at X (with the
reflog message "rebase finished: $head_name onto $onto"), and then back
to $orig_head. It should not be updated at all.

Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-rebase.sh b/git-rebase.sh
index 10a238ae3cc942bc021db18195b7098e2866c266..7c38c00a1e624553044512cdb737595bd66a46d6 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -274,15 +274,16 @@ do
                        die "No rebase in progress?"
 
                git rerere clear
-               if test -d "$dotest"
-               then
-                       GIT_QUIET=$(cat "$dotest/quiet")
-                       move_to_original_branch
-               else
-                       dotest="$GIT_DIR"/rebase-apply
-                       GIT_QUIET=$(cat "$dotest/quiet")
-                       move_to_original_branch
-               fi
+
+               test -d "$dotest" || dotest="$GIT_DIR"/rebase-apply
+
+               head_name="$(cat "$dotest"/head-name)" &&
+               case "$head_name" in
+               refs/*)
+                       git symbolic-ref HEAD $head_name ||
+                       die "Could not move back to $head_name"
+                       ;;
+               esac
                git reset --hard $(cat "$dotest/orig-head")
                rm -r "$dotest"
                exit

diff --git a/t/t3407-rebase-abort.sh b/t/t3407-rebase-abort.sh
index fbb3f2e0dfcf1a0673dbd2022a4ed843990fce52..e573dc845b3d72004b2a96f344528c68977c52e1 100755 (executable)
--- a/t/t3407-rebase-abort.sh
+++ b/t/t3407-rebase-abort.sh
@@ -72,6 +72,18 @@ testrebase() {
                test $(git rev-parse to-rebase) = $(git rev-parse pre-rebase) &&
                test ! -d "$dotest"
        '
+
+       test_expect_success "rebase$type --abort does not update reflog" '
+               cd "$work_dir" &&
+               # Clean up the state from the previous one
+               git reset --hard pre-rebase &&
+               git reflog show to-rebase > reflog_before &&
+               test_must_fail git rebase$type master &&
+               git rebase --abort &&
+               git reflog show to-rebase > reflog_after &&
+               test_cmp reflog_before reflog_after &&
+               rm reflog_before reflog_after
+       '
 }
 
 testrebase "" .git/rebase-apply