+case "$merge_repo" in
+http://*)
+ head=$(wget -q -O - "$merge_repo/$merge_head") || exit 1
+ echo Fetching "$merge_head" using http
+ git-http-pull -v -a "$head" "$merge_repo/"
+ ;;
+rsync://*)
+ rsync -L "$merge_repo/$merge_head" "$TMP_HEAD" || exit 1
+ head=$(git-rev-parse TMP_HEAD)
+ rm -f "$TMP_HEAD"
+ rsync -avz --ignore-existing "$merge_repo/objects/" "$GIT_OBJECT_DIRECTORY/"
+ ;;
+*)
+ head=$(git-fetch-pack "$merge_repo" "$merge_head")
+ ;;
+esac || exit 1