2 files changed, 17 insertions, 4 deletions
diff --git a/storage/filesystem/internal/dotgit/dotgit.go b/storage/filesystem/internal/dotgit/dotgit.go
index 6646e18..b46f827 100644
--- a/storage/filesystem/internal/dotgit/dotgit.go
+++ b/storage/filesystem/internal/dotgit/dotgit.go
@@ -21,13 +21,13 @@ const (
 	configPath     = "config"
 	indexPath      = "index"
 	shallowPath    = "shallow"
+	modulePath     = "module"
+	objectsPath    = "objects"
+	packPath       = "pack"
+	refsPath       = "refs"
 
 	tmpPackedRefsPrefix = "._packed-refs"
 
-	objectsPath = "objects"
-	packPath    = "pack"
-	refsPath    = "refs"
-
 	packExt = ".pack"
 	idxExt  = ".idx"
 )
@@ -454,6 +454,11 @@ func (d *DotGit) readReferenceFile(refsPath, refFile string) (ref *plumbing.Refe
 	return plumbing.NewReferenceFromStrings(refFile, line), nil
 }
 
+// Module return a billy.Filesystem poiting to the module folder
+func (d *DotGit) Module(name string) billy.Filesystem {
+	return d.fs.Dir(d.fs.Join(modulePath, name))
+}
+
 func isHex(s string) bool {
 	for _, b := range []byte(s) {
 		if isNum(b) {
diff --git a/storage/filesystem/internal/dotgit/dotgit_test.go b/storage/filesystem/internal/dotgit/dotgit_test.go
index 226b299..57dfb53 100644
--- a/storage/filesystem/internal/dotgit/dotgit_test.go
+++ b/storage/filesystem/internal/dotgit/dotgit_test.go
@@ -434,3 +434,11 @@ func (s *SuiteDotGit) TestObjectNotFound(c *C) {
 	c.Assert(err, NotNil)
 	c.Assert(file, IsNil)
 }
+
+func (s *SuiteDotGit) TestSubmodules(c *C) {
+	fs := fixtures.ByTag("submodule").One().DotGit()
+	dir := New(fs)
+
+	m := dir.Module("basic")
+	c.Assert(strings.HasSuffix(m.Base(), ".git/module/basic"), Equals, true)
+}