mirror of https://github.com/k3s-io/k3s
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
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/*
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Copyright 2018 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 table
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import (
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"time"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/duration"
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)
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// MetaToTableRow converts a list or object into one or more table rows. The provided rowFn is invoked for
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// each accessed item, with name and age being passed to each.
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func MetaToTableRow(obj runtime.Object, rowFn func(obj runtime.Object, m metav1.Object, name, age string) ([]interface{}, error)) ([]metav1beta1.TableRow, error) {
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if meta.IsListType(obj) {
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rows := make([]metav1beta1.TableRow, 0, 16)
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err := meta.EachListItem(obj, func(obj runtime.Object) error {
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nestedRows, err := MetaToTableRow(obj, rowFn)
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if err != nil {
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return err
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}
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rows = append(rows, nestedRows...)
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return nil
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})
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if err != nil {
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return nil, err
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}
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return rows, nil
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}
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rows := make([]metav1beta1.TableRow, 0, 1)
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m, err := meta.Accessor(obj)
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if err != nil {
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return nil, err
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}
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row := metav1beta1.TableRow{
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Object: runtime.RawExtension{Object: obj},
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}
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row.Cells, err = rowFn(obj, m, m.GetName(), ConvertToHumanReadableDateType(m.GetCreationTimestamp()))
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if err != nil {
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return nil, err
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}
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rows = append(rows, row)
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return rows, nil
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}
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// ConvertToHumanReadableDateType returns the elapsed time since timestamp in
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// human-readable approximation.
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func ConvertToHumanReadableDateType(timestamp metav1.Time) string {
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if timestamp.IsZero() {
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return "<unknown>"
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}
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return duration.ShortHumanDuration(time.Now().Sub(timestamp.Time))
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}
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