119 lines
2.4 KiB
Go
119 lines
2.4 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 {
|
|
table *metav1beta1.Table
|
|
|
|
ageIndex int
|
|
}
|
|
|
|
// 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) HeaderRow {
|
|
if g.table == nil {
|
|
return HeaderRow{}
|
|
}
|
|
|
|
h := make(HeaderRow, 0, len(g.table.ColumnDefinitions))
|
|
if client.IsAllNamespaces(ns) {
|
|
h = append(h, Header{Name: "NAMESPACE"})
|
|
}
|
|
for i, c := range g.table.ColumnDefinitions {
|
|
if c.Name == ageTableCol {
|
|
g.ageIndex = i
|
|
continue
|
|
}
|
|
h = append(h, Header{Name: strings.ToUpper(c.Name)})
|
|
}
|
|
if g.ageIndex > 0 {
|
|
h = append(h, Header{Name: "AGE"})
|
|
}
|
|
|
|
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, err := resourceNS(row.Object.Raw)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
n, ok := row.Cells[0].(string)
|
|
if !ok {
|
|
return fmt.Errorf("expecting row 0 to be a string but got %T", row.Cells[0])
|
|
}
|
|
|
|
r.ID = FQN(nns, n)
|
|
r.Fields = make(Fields, 0, len(g.Header(ns)))
|
|
if client.IsAllNamespaces(ns) && nns != "" {
|
|
r.Fields = append(r.Fields, nns)
|
|
}
|
|
var ageCell interface{}
|
|
for i, c := range row.Cells {
|
|
if g.ageIndex > 0 && i == g.ageIndex {
|
|
ageCell = c
|
|
continue
|
|
}
|
|
r.Fields = append(r.Fields, fmt.Sprintf("%v", c))
|
|
}
|
|
if ageCell != nil {
|
|
r.Fields = append(r.Fields, fmt.Sprintf("%v", ageCell))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Helpers...
|
|
|
|
func resourceNS(raw []byte) (bool, string, error) {
|
|
var obj map[string]interface{}
|
|
err := json.Unmarshal(raw, &obj)
|
|
if err != nil {
|
|
return false, "", err
|
|
}
|
|
|
|
meta, ok := obj["metadata"].(map[string]interface{})
|
|
if !ok {
|
|
return false, "", errors.New("no metadata found on generic resource")
|
|
}
|
|
|
|
ns, ok := meta["namespace"]
|
|
if !ok {
|
|
return true, "", nil
|
|
}
|
|
|
|
nns, ok := ns.(string)
|
|
if !ok {
|
|
return false, "", fmt.Errorf("expecting namespace string type but got %T", ns)
|
|
}
|
|
return false, nns, nil
|
|
}
|