compat: Add simplified merge sort implementation from glibc

diff --git a/git-clone.sh b/git-clone.sh
index ecf9d89a108484af3f73817e60c523f1dca8fff0..b4e858c3885dab55398670d9497304eb83545d1f 100755 (executable)
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -56,11 +56,12 @@ fi
 
 http_fetch () {
        # $1 = Remote, $2 = Local
-       curl -nsfL $curl_extra_args "$1" >"$2" ||
-               case $? in
-               126|127) exit ;;
-               *)       return $? ;;
-               esac
+       curl -nsfL $curl_extra_args "$1" >"$2"
+       curl_exit_status=$?
+       case $curl_exit_status in
+       126|127) exit ;;
+       *)       return $curl_exit_status ;;
+       esac
 }
 
 clone_dumb_http () {
@@ -151,7 +152,7 @@ do
                die "clones are always made with separate-remote layout" ;;
        --reference)
                shift; reference="$1" ;;
-       -o,--origin)
+       -o|--origin)
                shift;
                case "$1" in
                '')
@@ -205,7 +206,10 @@ fi
 # it is local
 if base=$(get_repo_base "$repo"); then
        repo="$base"
-       local=yes
+       if test -z "$depth"
+       then
+               local=yes
+       fi
 fi
 
 dir="$2"
@@ -297,7 +301,8 @@ yes)
                                      find objects -type f -print | sed -e 1q)
                        # objects directory should not be empty because
                        # we are cloning!
-                       test -f "$repo/$sample_file" || exit
+                       test -f "$repo/$sample_file" ||
+                               die "fatal: cannot clone empty repository"
                        if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null
                        then
                                rm -f "$GIT_DIR/objects/sample"