mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-23 14:50:24 +00:00
94 lines
3.1 KiB
Go
94 lines
3.1 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"crypto/md5"
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"errors"
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"fmt"
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"path"
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"path/filepath"
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"strings"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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)
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// ParseRFC3339 parses an RFC3339 date in either RFC3339Nano or RFC3339 format.
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func ParseRFC3339(s string, nowFn func() metav1.Time) (metav1.Time, error) {
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if t, timeErr := time.Parse(time.RFC3339Nano, s); timeErr == nil {
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return metav1.Time{Time: t}, nil
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}
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t, err := time.Parse(time.RFC3339, s)
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if err != nil {
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return metav1.Time{}, err
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}
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return metav1.Time{Time: t}, nil
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}
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// HashObject returns the hash of a Object hash by a Codec
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func HashObject(obj runtime.Object, codec runtime.Codec) (string, error) {
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data, err := runtime.Encode(codec, obj)
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if err != nil {
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return "", err
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}
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return fmt.Sprintf("%x", md5.Sum(data)), nil
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}
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// ParseFileSource parses the source given.
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//
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// Acceptable formats include:
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// 1. source-path: the basename will become the key name
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// 2. source-name=source-path: the source-name will become the key name and
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// source-path is the path to the key file.
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//
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// Key names cannot include '='.
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func ParseFileSource(source string) (keyName, filePath string, err error) {
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numSeparators := strings.Count(source, "=")
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switch {
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case numSeparators == 0:
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return path.Base(filepath.ToSlash(source)), source, nil
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case numSeparators == 1 && strings.HasPrefix(source, "="):
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return "", "", fmt.Errorf("key name for file path %v missing", strings.TrimPrefix(source, "="))
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case numSeparators == 1 && strings.HasSuffix(source, "="):
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return "", "", fmt.Errorf("file path for key name %v missing", strings.TrimSuffix(source, "="))
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case numSeparators > 1:
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return "", "", errors.New("Key names or file paths cannot contain '='")
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default:
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components := strings.Split(source, "=")
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return components[0], components[1], nil
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}
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}
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// ParseLiteralSource parses the source key=val pair into its component pieces.
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// This functionality is distinguished from strings.SplitN(source, "=", 2) since
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// it returns an error in the case of empty keys, values, or a missing equals sign.
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func ParseLiteralSource(source string) (keyName, value string, err error) {
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// leading equal is invalid
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if strings.Index(source, "=") == 0 {
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return "", "", fmt.Errorf("invalid literal source %v, expected key=value", source)
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}
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// split after the first equal (so values can have the = character)
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items := strings.SplitN(source, "=", 2)
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if len(items) != 2 {
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return "", "", fmt.Errorf("invalid literal source %v, expected key=value", source)
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}
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return items[0], items[1], nil
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}
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