132 lines
2.8 KiB
Go
132 lines
2.8 KiB
Go
package render
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/derailed/k9s/internal/client"
|
|
metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
|
|
)
|
|
|
|
const ageTableCol = "Age"
|
|
|
|
// Generic renders a generic resource to screen.
|
|
type Generic struct {
|
|
Base
|
|
table *metav1beta1.Table
|
|
ageIndex int
|
|
}
|
|
|
|
func (*Generic) IsGeneric() bool {
|
|
return true
|
|
}
|
|
|
|
// SetTable sets the tabular resource.
|
|
func (g *Generic) SetTable(t *metav1beta1.Table) {
|
|
g.table = t
|
|
}
|
|
|
|
// ColorerFunc colors a resource row.
|
|
func (*Generic) ColorerFunc() ColorerFunc {
|
|
return DefaultColorer
|
|
}
|
|
|
|
// Header returns a header row.
|
|
func (g *Generic) Header(ns string) Header {
|
|
if g.table == nil {
|
|
return Header{}
|
|
}
|
|
h := make(Header, 0, len(g.table.ColumnDefinitions))
|
|
if !client.IsClusterScoped(ns) {
|
|
h = append(h, HeaderColumn{Name: "NAMESPACE"})
|
|
}
|
|
for i, c := range g.table.ColumnDefinitions {
|
|
if c.Name == ageTableCol {
|
|
g.ageIndex = i
|
|
continue
|
|
}
|
|
h = append(h, HeaderColumn{Name: strings.ToUpper(c.Name)})
|
|
}
|
|
if g.ageIndex > 0 {
|
|
h = append(h, HeaderColumn{Name: "AGE", Time: true})
|
|
}
|
|
|
|
return h
|
|
}
|
|
|
|
// Render renders a K8s resource to screen.
|
|
func (g *Generic) Render(o interface{}, ns string, r *Row) error {
|
|
row, ok := o.(metav1beta1.TableRow)
|
|
if !ok {
|
|
return fmt.Errorf("expecting a TableRow but got %T", o)
|
|
}
|
|
nns, name, err := resourceNS(row.Object.Raw)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !ok {
|
|
return fmt.Errorf("expecting row 0 to be a string but got %T", row.Cells[0])
|
|
}
|
|
r.ID = client.FQN(nns, name)
|
|
r.Fields = make(Fields, 0, len(g.Header(ns)))
|
|
if !client.IsClusterScoped(ns) {
|
|
r.Fields = append(r.Fields, nns)
|
|
}
|
|
var duration interface{}
|
|
for i, c := range row.Cells {
|
|
if g.ageIndex > 0 && i == g.ageIndex {
|
|
duration = c
|
|
continue
|
|
}
|
|
if c == nil {
|
|
r.Fields = append(r.Fields, Blank)
|
|
continue
|
|
}
|
|
r.Fields = append(r.Fields, fmt.Sprintf("%v", c))
|
|
}
|
|
if d, ok := duration.(string); ok {
|
|
r.Fields = append(r.Fields, d)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Helpers...
|
|
|
|
func resourceNS(raw []byte) (string, string, error) {
|
|
var obj map[string]interface{}
|
|
var ns, name string
|
|
err := json.Unmarshal(raw, &obj)
|
|
if err != nil {
|
|
return ns, name, err
|
|
}
|
|
|
|
meta, ok := obj["metadata"].(map[string]interface{})
|
|
if !ok {
|
|
return ns, name, errors.New("no metadata found on generic resource")
|
|
}
|
|
ina, ok := meta["name"]
|
|
if !ok {
|
|
return ns, name, errors.New("unable to extract resource name")
|
|
}
|
|
name, ok = ina.(string)
|
|
if !ok {
|
|
return ns, name, fmt.Errorf("expecting name string type but got %T", ns)
|
|
}
|
|
|
|
ins, ok := meta["namespace"]
|
|
if !ok {
|
|
return client.ClusterScope, name, nil
|
|
}
|
|
|
|
ns, ok = ins.(string)
|
|
if !ok {
|
|
return ns, name, fmt.Errorf("expecting namespace string type but got %T", ns)
|
|
}
|
|
return ns, name, nil
|
|
}
|