X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=git-submodule.sh;h=f4f35626713bd8ec238262731b0fd2ab59d6f07f;hb=a49eb197d809d2d7efbd81d935c61e1a0caa983e;hp=3aff37970ad22c2498e1b2755a214e2fdb183f21;hpb=42b491786260eb17d97ea9fb1c4b70075bca9523;p=git.git

diff --git a/git-submodule.sh b/git-submodule.sh
index 3aff37970..f4f356267 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -15,6 +15,7 @@ require_work_tree
 command=
 branch=
 quiet=
+reference=
 cached=
 nofetch=
 update=
@@ -92,6 +93,7 @@ module_clone()
 {
 	path=$1
 	url=$2
+	reference="$3"
 
 	# If there already is a directory at the submodule path,
 	# expect it to be empty (since that is the default checkout
@@ -107,7 +109,12 @@ module_clone()
 	test -e "$path" &&
 	die "A file already exist at path '$path'"
 
-	git-clone -n "$url" "$path" ||
+	if test -n "$reference"
+	then
+		git-clone "$reference" -n "$url" "$path"
+	else
+		git-clone -n "$url" "$path"
+	fi ||
 	die "Clone of '$url' into submodule path '$path' failed"
 }
 
@@ -132,6 +139,15 @@ cmd_add()
 		-q|--quiet)
 			quiet=1
 			;;
+		--reference)
+			case "$2" in '') usage ;; esac
+			reference="--reference=$2"
+			shift
+			;;
+		--reference=*)
+			reference="$1"
+			shift
+			;;
 		--)
 			shift
 			break
@@ -204,7 +220,7 @@ cmd_add()
 		git config submodule."$path".url "$url"
 	else
 
-		module_clone "$path" "$realrepo" || exit
+		module_clone "$path" "$realrepo" "$reference" || exit
 		(
 			unset GIT_DIR
 			cd "$path" &&
@@ -320,8 +336,8 @@ cmd_update()
 			quiet=1
 			;;
 		-i|--init)
+			init=1
 			shift
-			cmd_init "$@" || return
 			;;
 		-N|--no-fetch)
 			shift
@@ -331,6 +347,15 @@ cmd_update()
 			shift
 			update="rebase"
 			;;
+		--reference)
+			case "$2" in '') usage ;; esac
+			reference="--reference=$2"
+			shift 2
+			;;
+		--reference=*)
+			reference="$1"
+			shift
+			;;
 		-m|--merge)
 			shift
 			update="merge"
@@ -348,6 +373,11 @@ cmd_update()
 		esac
 	done
 
+	if test -n "$init"
+	then
+		cmd_init "--" "$@" || return
+	fi
+
 	module_list "$@" |
 	while read mode sha1 stage path
 	do
@@ -366,7 +396,7 @@ cmd_update()
 
 		if ! test -d "$path"/.git -o -f "$path"/.git
 		then
-			module_clone "$path" "$url" || exit
+			module_clone "$path" "$url" "$reference"|| exit
 			subsha1=
 		else
 			subsha1=$(unset GIT_DIR; cd "$path" &&