/
name.go
64 lines (55 loc) · 1.6 KB
/
name.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
/*
* Copyright 2022 The Furiko Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package printer
import (
"fmt"
"io"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/cli-runtime/pkg/printers"
)
// NamePrinter is an implementation of ResourcePrinter which outputs
// "resource/name" pair of an object. This printer extends the default
// printers.NamePrinter to work with lists by assuming that all items have a
// GroupVersionKind already set.
type NamePrinter struct {
printer *printers.NamePrinter
}
func NewNamePrinter() *NamePrinter {
return &NamePrinter{
printer: &printers.NamePrinter{},
}
}
var _ printers.ResourcePrinter = (*NamePrinter)(nil)
func (p *NamePrinter) PrintObj(obj runtime.Object, w io.Writer) error {
if meta.IsListType(obj) {
items, err := meta.ExtractList(obj)
if err != nil {
return err
}
for _, item := range items {
obj, ok := item.(Object)
if !ok {
return fmt.Errorf("item is not an ObjectKind")
}
if err := p.PrintObj(obj, w); err != nil {
return err
}
}
return nil
}
return p.printer.PrintObj(obj, w)
}