Update vendor/

vendor/helm.sh/helm/v3/pkg/chartutil/validate_name.go

@@ -0,0 +1,99 @@
+/*
+Copyright The Helm Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package chartutil
+
+import (
+	"regexp"
+
+	"github.com/pkg/errors"
+)
+
+// validName is a regular expression for resource names.
+//
+// According to the Kubernetes help text, the regular expression it uses is:
+//
+//	[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*
+//
+// This follows the above regular expression (but requires a full string match, not partial).
+//
+// The Kubernetes documentation is here, though it is not entirely correct:
+// https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+var validName = regexp.MustCompile(`^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$`)
+
+var (
+	// errMissingName indicates that a release (name) was not provided.
+	errMissingName = errors.New("no name provided")
+
+	// errInvalidName indicates that an invalid release name was provided
+	errInvalidName = errors.New("invalid release name, must match regex ^(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])+$ and the length must not longer than 53")
+
+	// errInvalidKubernetesName indicates that the name does not meet the Kubernetes
+	// restrictions on metadata names.
+	errInvalidKubernetesName = errors.New("invalid metadata name, must match regex ^(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])+$ and the length must not longer than 253")
+)
+
+const (
+	// maxNameLen is the maximum length Helm allows for a release name
+	maxReleaseNameLen = 53
+	// maxMetadataNameLen is the maximum length Kubernetes allows for any name.
+	maxMetadataNameLen = 253
+)
+
+// ValidateReleaseName performs checks for an entry for a Helm release name
+//
+// For Helm to allow a name, it must be below a certain character count (53) and also match
+// a reguar expression.
+//
+// According to the Kubernetes help text, the regular expression it uses is:
+//
+//	[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*
+//
+// This follows the above regular expression (but requires a full string match, not partial).
+//
+// The Kubernetes documentation is here, though it is not entirely correct:
+// https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+func ValidateReleaseName(name string) error {
+	// This case is preserved for backwards compatibility
+	if name == "" {
+		return errMissingName
+
+	}
+	if len(name) > maxReleaseNameLen || !validName.MatchString(name) {
+		return errInvalidName
+	}
+	return nil
+}
+
+// ValidateMetadataName validates the name field of a Kubernetes metadata object.
+//
+// Empty strings, strings longer than 253 chars, or strings that don't match the regexp
+// will fail.
+//
+// According to the Kubernetes help text, the regular expression it uses is:
+//
+//	[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*
+//
+// This follows the above regular expression (but requires a full string match, not partial).
+//
+// The Kubernetes documentation is here, though it is not entirely correct:
+// https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+func ValidateMetadataName(name string) error {
+	if name == "" || len(name) > maxMetadataNameLen || !validName.MatchString(name) {
+		return errInvalidKubernetesName
+	}
+	return nil
+}