1 files changed, 16 insertions, 0 deletions
diff --git a/refstore/files/errors.go b/refstore/files/errors.go
new file mode 100644
index 00000000..daa40849
--- /dev/null
+++ b/refstore/files/errors.go
@@ -0,0 +1,16 @@
+package files
+
+import "fmt"
+
+type brokenRefError struct {
+	name string
+	err  error
+}
+
+func (err brokenRefError) Error() string {
+	return fmt.Sprintf("refstore/files: broken reference %q: %v", err.name, err.err)
+}
+
+func (err brokenRefError) Unwrap() error {
+	return err.err
+}