kubernetes gvtype 源码
kubernetes gvtype 代码
文件路径：/staging/src/k8s.io/code-generator/cmd/client-gen/args/gvtype.go
/*
Copyright 2017 The Kubernetes 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 args
import (
"flag"
"fmt"
"strings"
"k8s.io/code-generator/cmd/client-gen/types"
)
type gvTypeValue struct {
gvToTypes *map[types.GroupVersion][]string
changed bool
}
func NewGVTypesValue(gvToTypes *map[types.GroupVersion][]string, def []string) *gvTypeValue {
gvt := new(gvTypeValue)
gvt.gvToTypes = gvToTypes
if def != nil {
if err := gvt.set(def); err != nil {
panic(err)
}
}
return gvt
}
var _ flag.Value = &gvTypeValue{}
func (s *gvTypeValue) set(vs []string) error {
if !s.changed {
*s.gvToTypes = map[types.GroupVersion][]string{}
}
for _, input := range vs {
gvString, typeStr, err := parseGroupVersionType(input)
if err != nil {
return err
}
gv, err := types.ToGroupVersion(gvString)
if err != nil {
return err
}
types, ok := (*s.gvToTypes)[gv]
if !ok {
types = []string{}
}
types = append(types, typeStr)
(*s.gvToTypes)[gv] = types
}
return nil
}
func (s *gvTypeValue) Set(val string) error {
vs, err := readAsCSV(val)
if err != nil {
return err
}
if err := s.set(vs); err != nil {
return err
}
s.changed = true
return nil
}
func (s *gvTypeValue) Type() string {
return "stringSlice"
}
func (s *gvTypeValue) String() string {
strs := make([]string, 0, len(*s.gvToTypes))
for gv, ts := range *s.gvToTypes {
for _, t := range ts {
strs = append(strs, gv.Group.String()+"/"+gv.Version.String()+"/"+t)
}
}
str, _ := writeAsCSV(strs)
return "[" + str + "]"
}
func parseGroupVersionType(gvtString string) (gvString string, typeStr string, err error) {
invalidFormatErr := fmt.Errorf("invalid value: %s, should be of the form group/version/type", gvtString)
subs := strings.Split(gvtString, "/")
length := len(subs)
switch length {
case 2:
// gvtString of the form group/type, e.g. api/Service,extensions/ReplicaSet
return subs[0] + "/", subs[1], nil
case 3:
return strings.Join(subs[:length-1], "/"), subs[length-1], nil
default:
return "", "", invalidFormatErr
}
}
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