112 lines
2.5 KiB
Go
112 lines
2.5 KiB
Go
package render
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import (
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"fmt"
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"strconv"
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"time"
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"github.com/derailed/k9s/internal/client"
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"github.com/derailed/tview"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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)
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// ConfigMap renders a K8s ConfigMap to screen.
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type ConfigMap struct{}
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// ColorerFunc colors a resource row.
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func (ConfigMap) ColorerFunc() ColorerFunc {
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return DefaultColorer
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}
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// Header returns a header row.
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func (ConfigMap) Header(ns string) HeaderRow {
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var h HeaderRow
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if client.IsAllNamespaces(ns) {
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h = append(h, Header{Name: "NAMESPACE"})
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}
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return append(h,
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Header{Name: "NAME"},
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Header{Name: "DATA", Align: tview.AlignRight},
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Header{Name: "AGE", Decorator: AgeDecorator},
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)
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}
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// Render renders a K8s resource to screen.
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// BOZO!! 44allocs down to 5allocs avoiding marshal??
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func (c ConfigMap) Render(o interface{}, ns string, r *Row) error {
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raw, ok := o.(*unstructured.Unstructured)
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if !ok {
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return fmt.Errorf("Expected ConfigMap, but got %T", o)
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}
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meta, ok := raw.Object["metadata"].(map[string]interface{})
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if !ok {
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return fmt.Errorf("No meta")
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}
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n, nss := extractMetaField(meta, "name"), extractMetaField(meta, "namespace")
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r.ID = FQN(nss, n)
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r.Fields = make(Fields, 0, len(c.Header(ns)))
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if client.IsAllNamespaces(ns) {
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r.Fields = append(r.Fields, nss)
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}
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var size int
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data, ok := raw.Object["data"]
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if ok {
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d, ok := data.(map[string]interface{})
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if !ok {
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return fmt.Errorf("expecting map but got %T", raw.Object["data"])
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}
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size = len(d)
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}
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t, err := extractMetaTime(meta)
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if err != nil {
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return err
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}
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r.Fields = append(r.Fields,
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n,
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strconv.Itoa(size),
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toAge(t),
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)
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// var cm v1.ConfigMap
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// err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &cm)
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// if err != nil {
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// return err
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// }
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// r.ID = MetaFQN(cm.ObjectMeta)
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// r.Fields = make(Fields, 0, len(c.Header(ns)))
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// if client.IsAllNamespaces(ns) {
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// r.Fields = append(r.Fields, cm.Namespace)
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// }
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// r.Fields = append(r.Fields,
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// cm.Name,
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// strconv.Itoa(len(cm.Data)),
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// toAge(cm.ObjectMeta.CreationTimestamp),
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// )
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return nil
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}
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func extractMetaTime(m map[string]interface{}) (metav1.Time, error) {
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f, ok := m["creationTimestamp"]
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if !ok {
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return metav1.Time{}, fmt.Errorf("failed to extract time from meta")
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}
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t, ok := f.(string)
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if !ok {
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return metav1.Time{}, fmt.Errorf("failed to extract time from field")
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}
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ti, err := time.Parse(time.RFC3339, t)
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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: ti}, nil
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}
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