X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-merge.sh;h=3457a96cfd7a27ae4dffcf5d3f1ff2f9568bd83d;hb=40a10462498bdd23d4e49f02867b8be50eb78704;hp=d12a2a93b1408e7be6e9947737b4b09c5f0927fe;hpb=79a9d8ea0d88a3667ad19be8e705405ab5d896f1;p=git.git

diff --git a/git-merge.sh b/git-merge.sh
index d12a2a93..3457a96c 100755
--- a/git-merge.sh
+++ b/git-merge.sh
@@ -26,7 +26,7 @@ dropsave() {
 savestate() {
 	# Stash away any local modifications.
 	git-diff-index -r -z --name-only $head |
-	cpio -0 -o >"$GIR_DIR/MERGE_SAVE"
+	cpio -0 -o >"$GIT_DIR/MERGE_SAVE"
 }
 
 restorestate() {
@@ -38,10 +38,20 @@ restorestate() {
 	fi
 }
 
-summary() {
+finish () {
+	test '' = "$2" || echo "$2"
+	case "$merge_msg" in
+	'')
+		echo "No merge message -- not updating HEAD"
+		;;
+	*)
+		git-update-ref HEAD "$1" "$head" || exit 1
+		;;
+	esac
+
 	case "$no_summary" in
 	'')
-		git-diff-tree -p -M $head "$1" |
+		git-diff-tree -p -M "$head" "$1" |
 		git-apply --stat --summary
 		;;
 	esac
@@ -103,12 +113,12 @@ echo "$head" >"$GIT_DIR/ORIG_HEAD"
 
 case "$#,$common" in
 *,'')
-	die "Unable to find common commit between $head_arg and $*"
+	# No common ancestors found. We need a real merge.
 	;;
 1,"$1")
 	# If head can reach all the merge then we are up to date.
 	# but first the most common case of merging one remote
-	echo "Already up-to-date. Yeeah!"
+	echo "Already up-to-date."
 	dropsave
 	exit 0
 	;;
@@ -116,10 +126,9 @@ case "$#,$common" in
 	# Again the most common case of merging one remote.
 	echo "Updating from $head to $1."
 	git-update-index --refresh 2>/dev/null
-	git-read-tree -u -m $head "$1" &&
 	new_head=$(git-rev-parse --verify "$1^0") &&
-	git-update-ref HEAD "$new_head" "$head" || exit 1
-	summary "$1"
+	git-read-tree -u -m $head "$new_head" &&
+	finish "$new_head" "Fast forward"
 	dropsave
 	exit 0
 	;;
@@ -140,8 +149,7 @@ case "$#,$common" in
 	        echo "$merge_msg" |
 	        git-commit-tree $result_tree -p HEAD -p "$1"
 	    ) || exit
-	    git-update-ref HEAD $result_commit $head
-	    summary $result_commit
+	    finish "$result_commit" "In-index merge"
 	    dropsave
 	    exit 0
 	fi
@@ -237,9 +245,7 @@ then
         parents="$parents -p $remote"
     done
     result_commit=$(echo "$merge_msg" | git-commit-tree $result_tree $parents) || exit
-    echo "Committed merge $result_commit, made by $wt_strategy."
-    git-update-ref HEAD $result_commit $head
-    summary $result_commit
+    finish "$result_commit" "Merge $result_commit, made by $wt_strategy."
     dropsave
     exit 0
 fi