1 files changed, 21 insertions, 7 deletions
diff --git a/vendor/github.com/spf13/afero/unionFile.go b/vendor/github.com/spf13/afero/unionFile.go
index 985363ee..34f99a40 100644
--- a/vendor/github.com/spf13/afero/unionFile.go
+++ b/vendor/github.com/spf13/afero/unionFile.go
@@ -268,13 +268,7 @@ func (f *UnionFile) WriteString(s string) (n int, err error) {
 	return 0, BADFD
 }
 
-func copyToLayer(base Fs, layer Fs, name string) error {
-	bfh, err := base.Open(name)
-	if err != nil {
-		return err
-	}
-	defer bfh.Close()
-
+func copyFile(base Fs, layer Fs, name string, bfh File) error {
 	// First make sure the directory exists
 	exists, err := Exists(layer, filepath.Dir(name))
 	if err != nil {
@@ -315,3 +309,23 @@ func copyToLayer(base Fs, layer Fs, name string) error {
 	}
 	return layer.Chtimes(name, bfi.ModTime(), bfi.ModTime())
 }
+
+func copyToLayer(base Fs, layer Fs, name string) error {
+	bfh, err := base.Open(name)
+	if err != nil {
+		return err
+	}
+	defer bfh.Close()
+
+	return copyFile(base, layer, name, bfh)
+}
+
+func copyFileToLayer(base Fs, layer Fs, name string, flag int, perm os.FileMode) error {
+	bfh, err := base.OpenFile(name, flag, perm)
+	if err != nil {
+		return err
+	}
+	defer bfh.Close()
+
+	return copyFile(base, layer, name, bfh)
+}