mirror of
https://github.com/vmware-tanzu/velero.git
synced 2026-01-07 05:46:37 +00:00
123 lines
3.6 KiB
Go
123 lines
3.6 KiB
Go
/*
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Copyright 2017 the Velero contributors.
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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 output
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import (
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"fmt"
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"io"
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"regexp"
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"sort"
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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/util/duration"
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"k8s.io/kubernetes/pkg/printers"
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velerov1api "github.com/heptio/velero/pkg/apis/velero/v1"
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)
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var (
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backupColumns = []string{"NAME", "STATUS", "CREATED", "EXPIRES", "STORAGE LOCATION", "SELECTOR"}
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)
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func printBackupList(list *velerov1api.BackupList, w io.Writer, options printers.PrintOptions) error {
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sortBackupsByPrefixAndTimestamp(list)
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for i := range list.Items {
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if err := printBackup(&list.Items[i], w, options); err != nil {
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return err
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}
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}
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return nil
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}
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// sort by default alphabetically, but if backups stem from a common schedule
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// (detected by the presence of a 14-digit timestamp suffix), then within that
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// group, sort by newest to oldest (i.e. prefix ASC, suffix DESC)
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var timestampSuffix = regexp.MustCompile("-[0-9]{14}$")
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func sortBackupsByPrefixAndTimestamp(list *velerov1api.BackupList) {
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sort.Slice(list.Items, func(i, j int) bool {
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iSuffixIndex := timestampSuffix.FindStringIndex(list.Items[i].Name)
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jSuffixIndex := timestampSuffix.FindStringIndex(list.Items[j].Name)
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// one/both don't have a timestamp suffix, so sort alphabetically
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if iSuffixIndex == nil || jSuffixIndex == nil {
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return list.Items[i].Name < list.Items[j].Name
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}
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// different prefixes, so sort alphabetically
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if list.Items[i].Name[0:iSuffixIndex[0]] != list.Items[j].Name[0:jSuffixIndex[0]] {
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return list.Items[i].Name < list.Items[j].Name
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}
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// same prefixes, so sort based on suffix (desc)
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return list.Items[i].Name[iSuffixIndex[0]:] >= list.Items[j].Name[jSuffixIndex[0]:]
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})
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}
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func printBackup(backup *velerov1api.Backup, w io.Writer, options printers.PrintOptions) error {
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name := printers.FormatResourceName(options.Kind, backup.Name, options.WithKind)
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if options.WithNamespace {
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if _, err := fmt.Fprintf(w, "%s\t", backup.Namespace); err != nil {
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return err
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}
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}
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expiration := backup.Status.Expiration.Time
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if expiration.IsZero() && backup.Spec.TTL.Duration > 0 {
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expiration = backup.CreationTimestamp.Add(backup.Spec.TTL.Duration)
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}
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status := backup.Status.Phase
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if status == "" {
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status = velerov1api.BackupPhaseNew
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}
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if backup.DeletionTimestamp != nil && !backup.DeletionTimestamp.Time.IsZero() {
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status = "Deleting"
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}
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location := backup.Spec.StorageLocation
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if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s", name, status, backup.Status.StartTimestamp.Time, humanReadableTimeFromNow(expiration), location, metav1.FormatLabelSelector(backup.Spec.LabelSelector)); err != nil {
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return err
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}
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if _, err := fmt.Fprint(w, printers.AppendLabels(backup.Labels, options.ColumnLabels)); err != nil {
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return err
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}
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_, err := fmt.Fprint(w, printers.AppendAllLabels(options.ShowLabels, backup.Labels))
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return err
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}
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func humanReadableTimeFromNow(when time.Time) string {
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if when.IsZero() {
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return "n/a"
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}
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now := time.Now()
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switch {
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case when == now || when.After(now):
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return duration.ShortHumanDuration(when.Sub(now))
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default:
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return fmt.Sprintf("%s ago", duration.ShortHumanDuration(now.Sub(when)))
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}
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}
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