support file path in PlainOpenWithOptions

2 files changed, 18 insertions, 0 deletions

diff --git a/repository.go b/repository.go
index 9dd35be..d954333 100644
--- a/repository.go
+++ b/repository.go
@@ -278,6 +278,14 @@ func dotGitToOSFilesystems(path string, detect bool) (dot, wt billy.Filesystem,
 	if path, err = filepath.Abs(path); err != nil {
 		return nil, nil, err
 	}
+
+	pathinfo, err := os.Stat(path)
+	if !os.IsNotExist(err) {
+		if !pathinfo.IsDir() {
+			path = filepath.Dir(path)
+		}
+	}
+
 	var fs billy.Filesystem
 	var fi os.FileInfo
 	for {
diff --git a/repository_test.go b/repository_test.go
index 6a6ab9e..9433a3c 100644
--- a/repository_test.go
+++ b/repository_test.go
@@ -569,6 +569,11 @@ func (s *RepositorySuite) TestPlainOpenDetectDotGit(c *C) {
 	err = os.MkdirAll(subdir, 0755)
 	c.Assert(err, IsNil)
 
+	file := filepath.Join(subdir, "file.txt")
+	f, err := os.Create(file)
+	c.Assert(err, IsNil)
+	f.Close()
+
 	r, err := PlainInit(dir, false)
 	c.Assert(err, IsNil)
 	c.Assert(r, NotNil)
@@ -577,6 +582,11 @@ func (s *RepositorySuite) TestPlainOpenDetectDotGit(c *C) {
 	r, err = PlainOpenWithOptions(subdir, opt)
 	c.Assert(err, IsNil)
 	c.Assert(r, NotNil)
+
+	opt = &PlainOpenOptions{DetectDotGit: true}
+	r, err = PlainOpenWithOptions(file, opt)
+	c.Assert(err, IsNil)
+	c.Assert(r, NotNil)
 }
 
 func (s *RepositorySuite) TestPlainOpenNotExistsDetectDotGit(c *C) {