X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-rebase--interactive.sh;h=8ed2244819d0950ddf1ffaa151b4d46bdc8b6db4;hb=1c7c1d179e51f163c014353f33b406f5bae13922;hp=1172e47571dfe1d6dd088381d63045fd5eae3db3;hpb=bf31115312aefd36f1571379842eebebf34dcb55;p=git.git

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 1172e4757..8ed224481 100755
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -115,9 +115,18 @@ mark_action_done () {
 }
 
 make_patch () {
-	parent_sha1=$(git rev-parse --verify "$1"^) ||
-		die "Cannot get patch for $1^"
-	git diff-tree -p "$parent_sha1".."$1" > "$DOTEST"/patch
+	sha1_and_parents="$(git rev-list --parents -1 "$1")"
+	case "$sha1_and_parents" in
+	?*' '?*' '?*)
+		git diff --cc $sha1_and_parents
+		;;
+	?*' '?*)
+		git diff-tree -p "$1^!"
+		;;
+	*)
+		echo "Root commit"
+		;;
+	esac > "$DOTEST"/patch
 	test -f "$DOTEST"/message ||
 		git cat-file commit "$1" | sed "1,/^$/d" > "$DOTEST"/message
 	test -f "$DOTEST"/author-script ||
@@ -256,9 +265,8 @@ pick_one_preserving_merges () {
 				output git merge $STRATEGY -m "$msg" \
 					$new_parents
 			then
-				git rerere
 				printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG
-				die Error redoing merge $sha1
+				die_with_patch $sha1 "Error redoing merge $sha1"
 			fi
 			;;
 		*)
@@ -341,7 +349,7 @@ do_next () {
 	squash|s)
 		comment_for_reflog squash
 
-		has_action "$DONE" ||
+		test -f "$DONE" && has_action "$DONE" ||
 			die "Cannot 'squash' without a previous commit"
 
 		mark_action_done