X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-submodule.sh;h=efc86ad4e0b90edbbf5a927aa87e7ad4b1a1949e;hb=b1d645b58ac6c96ffdc8d9a01f0b44a10deb43f9;hp=814d0d914eaf994462e61559b0692c958f97513b;hpb=110c511dbeff65f7ae92216cf1d976a9093d911f;p=git.git

diff --git a/git-submodule.sh b/git-submodule.sh
index 814d0d914..efc86ad4e 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -104,9 +104,9 @@ module_name()
 	re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
 	name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
 		sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
-       test -z "$name" &&
-       die "$(eval_gettext "No submodule mapping found in .gitmodules for path '\$path'")"
-       echo "$name"
+	test -z "$name" &&
+	die "$(eval_gettext "No submodule mapping found in .gitmodules for path '\$path'")"
+	echo "$name"
 }
 
 #
@@ -128,13 +128,50 @@ module_clone()
 		quiet=-q
 	fi
 
-	if test -n "$reference"
+	gitdir=
+	gitdir_base=
+	name=$(module_name "$path" 2>/dev/null)
+	test -n "$name" || name="$path"
+	base_name=$(dirname "$name")
+
+	gitdir=$(git rev-parse --git-dir)
+	gitdir_base="$gitdir/modules/$base_name"
+	gitdir="$gitdir/modules/$name"
+
+	if test -d "$gitdir"
 	then
-		git-clone $quiet "$reference" -n "$url" "$path"
+		mkdir -p "$path"
+		rm -f "$gitdir/index"
 	else
-		git-clone $quiet -n "$url" "$path"
-	fi ||
-	die "$(eval_gettext "Clone of '\$url' into submodule path '\$path' failed")"
+		mkdir -p "$gitdir_base"
+		git clone $quiet -n ${reference:+"$reference"} \
+			--separate-git-dir "$gitdir" "$url" "$path" ||
+		die "$(eval_gettext "Clone of '\$url' into submodule path '\$path' failed")"
+	fi
+
+	a=$(cd "$gitdir" && pwd)/
+	b=$(cd "$path" && pwd)/
+	# normalize Windows-style absolute paths to POSIX-style absolute paths
+	case $a in [a-zA-Z]:/*) a=/${a%%:*}${a#*:} ;; esac
+	case $b in [a-zA-Z]:/*) b=/${b%%:*}${b#*:} ;; esac
+	# Remove all common leading directories after a sanity check
+	if test "${a#$b}" != "$a" || test "${b#$a}" != "$b"; then
+		die "$(eval_gettext "Gitdir '\$a' is part of the submodule path '\$b' or vice versa")"
+	fi
+	while test "${a%%/*}" = "${b%%/*}"
+	do
+		a=${a#*/}
+		b=${b#*/}
+	done
+	# Now chop off the trailing '/'s that were added in the beginning
+	a=${a%/}
+	b=${b%/}
+
+	rel=$(echo $b | sed -e 's|[^/]*|..|g')
+	echo "gitdir: $rel/$a" >"$path/.git"
+
+	rel=$(echo $a | sed -e 's|[^/]*|..|g')
+	(clear_local_git_env; cd "$path" && GIT_WORK_TREE=. git config core.worktree "$rel/$b")
 }
 
 #
@@ -426,6 +463,9 @@ cmd_update()
 		--recursive)
 			recursive=1
 			;;
+		--checkout)
+			update="checkout"
+			;;
 		--)
 			shift
 			break
@@ -458,7 +498,19 @@ cmd_update()
 		fi
 		name=$(module_name "$path") || exit
 		url=$(git config submodule."$name".url)
-		update_module=$(git config submodule."$name".update)
+		if ! test -z "$update"
+		then
+			update_module=$update
+		else
+			update_module=$(git config submodule."$name".update)
+		fi
+
+		if test "$update_module" = "none"
+		then
+			echo "Skipping submodule '$path'"
+			continue
+		fi
+
 		if test -z "$url"
 		then
 			# Only mention uninitialized submodules when its
@@ -480,11 +532,6 @@ Maybe you want to use 'update --init'?")"
 			die "$(eval_gettext "Unable to find current revision in submodule path '\$path'")"
 		fi
 
-		if ! test -z "$update"
-		then
-			update_module=$update
-		fi
-
 		if test "$subsha1" != "$sha1"
 		then
 			subforce=$force