vendor dependencies with dep

vendor/github.com/go-ozzo/ozzo-validation/not_nil.go

@@ -0,0 +1,32 @@
+// Copyright 2016 Qiang Xue. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package validation
+
+import "errors"
+
+// NotNil is a validation rule that checks if a value is not nil.
+// NotNil only handles types including interface, pointer, slice, and map.
+// All other types are considered valid.
+var NotNil = &notNilRule{message: "is required"}
+
+type notNilRule struct {
+	message string
+}
+
+// Validate checks if the given value is valid or not.
+func (r *notNilRule) Validate(value interface{}) error {
+	_, isNil := Indirect(value)
+	if isNil {
+		return errors.New(r.message)
+	}
+	return nil
+}
+
+// Error sets the error message for the rule.
+func (r *notNilRule) Error(message string) *notNilRule {
+	return &notNilRule{
+		message: message,
+	}
+}