vendor files

vendor/k8s.io/kubernetes/pkg/kubectl/util/util.go

@@ -0,0 +1,91 @@
+/*
+Copyright 2017 The Kubernetes 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 util
+
+import (
+	"crypto/md5"
+	"errors"
+	"fmt"
+	"path"
+	"strings"
+	"time"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+// ParseRFC3339 parses an RFC3339 date in either RFC3339Nano or RFC3339 format.
+func ParseRFC3339(s string, nowFn func() metav1.Time) (metav1.Time, error) {
+	if t, timeErr := time.Parse(time.RFC3339Nano, s); timeErr == nil {
+		return metav1.Time{Time: t}, nil
+	}
+	t, err := time.Parse(time.RFC3339, s)
+	if err != nil {
+		return metav1.Time{}, err
+	}
+	return metav1.Time{Time: t}, nil
+}
+
+func HashObject(obj runtime.Object, codec runtime.Codec) (string, error) {
+	data, err := runtime.Encode(codec, obj)
+	if err != nil {
+		return "", err
+	}
+	return fmt.Sprintf("%x", md5.Sum(data)), nil
+}
+
+// ParseFileSource parses the source given.
+//
+//  Acceptable formats include:
+//   1.  source-path: the basename will become the key name
+//   2.  source-name=source-path: the source-name will become the key name and
+//       source-path is the path to the key file.
+//
+// Key names cannot include '='.
+func ParseFileSource(source string) (keyName, filePath string, err error) {
+	numSeparators := strings.Count(source, "=")
+	switch {
+	case numSeparators == 0:
+		return path.Base(source), source, nil
+	case numSeparators == 1 && strings.HasPrefix(source, "="):
+		return "", "", fmt.Errorf("key name for file path %v missing.", strings.TrimPrefix(source, "="))
+	case numSeparators == 1 && strings.HasSuffix(source, "="):
+		return "", "", fmt.Errorf("file path for key name %v missing.", strings.TrimSuffix(source, "="))
+	case numSeparators > 1:
+		return "", "", errors.New("Key names or file paths cannot contain '='.")
+	default:
+		components := strings.Split(source, "=")
+		return components[0], components[1], nil
+	}
+}
+
+// ParseLiteralSource parses the source key=val pair into its component pieces.
+// This functionality is distinguished from strings.SplitN(source, "=", 2) since
+// it returns an error in the case of empty keys, values, or a missing equals sign.
+func ParseLiteralSource(source string) (keyName, value string, err error) {
+	// leading equal is invalid
+	if strings.Index(source, "=") == 0 {
+		return "", "", fmt.Errorf("invalid literal source %v, expected key=value", source)
+	}
+	// split after the first equal (so values can have the = character)
+	items := strings.SplitN(source, "=", 2)
+	if len(items) != 2 {
+		return "", "", fmt.Errorf("invalid literal source %v, expected key=value", source)
+	}
+
+	return items[0], items[1], nil
+}