X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=git-clone-script;h=88e2c1f70686d35e6f2d9070931e40ff3ae7e1a5;hb=12dd6e8cb0643231628d0240fdbb4afdef6629ea;hp=28a93212690e9537e113fcad295f2dd451de7a45;hpb=72347a233e6f3c176059a28f0817de6654ef29c7;p=git.git

diff --git a/git-clone-script b/git-clone-script
index 28a93212..88e2c1f7 100755
--- a/git-clone-script
+++ b/git-clone-script
@@ -1,4 +1,103 @@
 #!/bin/sh
+#
+# Copyright (c) 2005, Linus Torvalds
+# Copyright (c) 2005, Junio C Hamano
+# 
+# Clone a repository into a different directory that does not yet exist.
+
+usage() {
+	echo >&2 "* git clone [-l] [-q] [-u <upload-pack>] <repo> <dir>"
+	exit 1
+}
+
+get_repo_base() {
+	(cd "$1" && (cd .git ; pwd)) 2> /dev/null
+}
+
+quiet=
+use_local=no
+upload_pack=
+while
+	case "$#,$1" in
+	0,*) break ;;
+        *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;;
+	*,-q|*,--quiet) quiet=-q ;;
+	1,-u|*,--upload-pack) usage ;;
+	*,-u|*,--upload-pack)
+		shift
+		upload_pack="--exec=$2" ;;
+	*,-*) usage ;;
+	*) break ;;
+	esac
+do
+	shift
+done
+
+# Turn the source into an absolute path if
+# it is local
 repo="$1"
+local=no
+if base=$(get_repo_base "$repo"); then
+	repo="$base"
+	local=yes
+fi
+
 dir="$2"
-mkdir "$dir" && cd "$dir" && git-init-db && git-clone-pack "$repo"
+mkdir "$dir" &&
+D=$(
+	(cd "$dir" && git-init-db && pwd)
+) &&
+test -d "$D" || usage
+
+# We do local magic only when the user tells us to.
+case "$local,$use_local" in
+yes,yes)
+	( cd "$repo/objects" ) || {
+		echo >&2 "-l flag seen but $repo is not local."
+		exit 1
+	}
+
+	# See if we can hardlink and drop "l" if not.
+	sample_file=$(cd "$repo" && \
+		      find objects -type f -print | sed -e 1q)
+
+	# objects directory should not be empty since we are cloning!
+	test -f "$repo/$sample_file" || exit
+
+	l=
+	if ln "$repo/$sample_file" "$D/.git/objects/sample" 2>/dev/null
+	then
+		l=l
+	fi &&
+	rm -f "$D/.git/objects/sample" &&
+	cd "$repo" &&
+	find objects -type f -print |
+	cpio -puamd$l "$D/.git/" || exit 1
+
+	# Make a duplicate of refs and HEAD pointer
+	HEAD=
+	if test -f "$repo/HEAD"
+	then
+		HEAD=HEAD
+	fi
+	tar Ccf "$repo" - refs $HEAD | tar Cxf "$D/.git" - || exit 1
+	exit 0
+	;;
+esac
+
+case "$repo" in
+rsync://*)
+	rsync $quiet -avz --ignore-existing "$repo/objects/" "$D/.git/objects/" &&
+	rsync $quiet -avz --ignore-existing "$repo/refs/" "$D/.git/refs/"
+	;;
+http://*)
+	echo "Somebody should add http fetch" >&2
+	exit 1
+	;;
+*)
+	cd "$D" && case "$upload_pack" in
+	'') git-clone-pack $quiet "$repo" ;;
+	*) git-clone-pack $quiet "$upload_pack" "$repo" ;;
+	esac
+	;;
+esac