k9s/internal/model/helpers.go

61 lines
1.4 KiB
Go

package model
import (
"fmt"
"github.com/derailed/tview"
runewidth "github.com/mattn/go-runewidth"
"github.com/rs/zerolog/log"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
)
func extractFQN(o runtime.Object) string {
u, ok := o.(*unstructured.Unstructured)
if !ok {
log.Error().Err(fmt.Errorf("expecting unstructured but got %T", o))
return "na"
}
m, ok := u.Object["metadata"].(map[string]interface{})
if !ok {
log.Error().Err(fmt.Errorf("expecting interface map for metadata but got %T", u.Object["metadata"]))
return "na"
}
n, ok := m["name"].(string)
if !ok {
log.Error().Err(fmt.Errorf("expecting interface map for name but got %T", m["name"]))
return "na"
}
ns, ok := m["namespace"].(string)
if !ok {
return FQN("", n)
}
return FQN(ns, n)
}
// MetaFQN returns a fully qualified resource name.
func MetaFQN(m metav1.ObjectMeta) string {
if m.Namespace == "" {
return m.Name
}
return FQN(m.Namespace, m.Name)
}
// FQN returns a fully qualified resource name.
func FQN(ns, n string) string {
if ns == "" {
return n
}
return ns + "/" + n
}
// Truncate a string to the given l and suffix ellipsis if needed.
func Truncate(str string, width int) string {
return runewidth.Truncate(str, width, string(tview.SemigraphicsHorizontalEllipsis))
}