[PATCH v2 8/9] git submodule: infrastructure for reading .gitmodules files in arbitrary locations

[Peter Collingbourne <peter@pcc.me.uk>]

This patch modifies the module_name function in git-submodule.sh to take
an optional parameter which specifies the path of the .gitmodules
file to read.

Signed-off-by: Peter Collingbourne <peter@pcc.me.uk>
---
 git-submodule.sh |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/git-submodule.sh b/git-submodule.sh
index f1e4e22..75c50b8 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -64,12 +64,18 @@ module_list()
 # Map submodule path to submodule name
 #
 # $1 = path
+# $2 = .gitmodules file, default ".gitmodules"
 #
 module_name()
 {
+	modfile="$2"
+	if test -z "$modfile"
+	then
+		modfile=".gitmodules"
+	fi
 	# Do we have "submodule.<something>.path = $1" defined in .gitmodules file?
 	re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g')
-	name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' |
+	name=$( git config -f "$modfile" --get-regexp '^submodule\..*\.path$' |
 		sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' )
        test -z "$name" &&
        die "No submodule mapping found in .gitmodules for path '$path'"
-- 
1.6.5