Added Chown to afero.Fs implementations.

ricefs/fs.go

@@ -97,5 +97,8 @@ func (f *RiceFs) Name() string {
 // Chmod is not supported for a RiceFs.
 func (f *RiceFs) Chmod(name string, mode os.FileMode) error { return ErrReadOnly }
 
+// Chown changes the uid and gid of the named file.
+func (f *RiceFs) Chown(name string, uid, gid int) error { return ErrReadOnly }
+
 // Chtimes is not supported for a RiceFs.
 func (f *RiceFs) Chtimes(name string, atime time.Time, mtime time.Time) error { return ErrReadOnly }

vfs/fallbackfs.go

@@ -106,6 +106,11 @@ func (f *FallbackFs) Chmod(name string, mode os.FileMode) error {
 	return f.do(func(fs afero.Fs) error { return fs.Chmod(name, mode) })
 }
 
+// Chown changes the uid and gid of the named file.
+func (f *FallbackFs) Chown(name string, uid, gid int) error {
+	return f.do(func(fs afero.Fs) error { return fs.Chown(name, uid, gid) })
+}
+
 // Chtimes changes the access and modification times of the named file.
 func (f *FallbackFs) Chtimes(name string, atime time.Time, mtime time.Time) error {
 	return f.do(func(fs afero.Fs) error { return fs.Chtimes(name, atime, mtime) })