Initial commit (code only without large binaries)

EdgeAPI/internal/installers/errors.go

@@ -0,0 +1,27 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package installers
+
+type GrantError struct {
+	err string
+}
+
+func newGrantError(err string) *GrantError {
+	return &GrantError{err: err}
+}
+
+func (this *GrantError) Error() string {
+	return this.err
+}
+
+func (this *GrantError) String() string {
+	return this.err
+}
+
+func IsGrantError(err error) bool {
+	if err == nil {
+		return false
+	}
+	_, ok := err.(*GrantError)
+	return ok
+}