From 9d08dc994d51298e2d8e75d8ed4ee477312ec53a Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Sat, 7 Mar 2026 15:08:14 +0800
Subject: ref/refname: Add refname validation

---
 ref/refname/errors.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 ref/refname/errors.go

(limited to 'ref/refname/errors.go')

diff --git a/ref/refname/errors.go b/ref/refname/errors.go
new file mode 100644
index 00000000..e39bc73b
--- /dev/null
+++ b/ref/refname/errors.go
@@ -0,0 +1,14 @@
+package refname
+
+import "fmt"
+
+// NameError reports one invalid reference name.
+type NameError struct {
+	Name   string
+	Reason string
+}
+
+// Error implements error.
+func (err *NameError) Error() string {
+	return fmt.Sprintf("ref: invalid name %q: %s", err.Name, err.Reason)
+}
-- 
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