128 lines
3.0 KiB
Go
128 lines
3.0 KiB
Go
/*
|
|
Copyright 2018 Google LLC
|
|
|
|
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 config
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// This type is used to supported passing in multiple flags
|
|
type multiArg []string
|
|
|
|
// Now, for our new type, implement the two methods of
|
|
// the flag.Value interface...
|
|
// The first method is String() string
|
|
func (b *multiArg) String() string {
|
|
return strings.Join(*b, ",")
|
|
}
|
|
|
|
// The second method is Set(value string) error
|
|
func (b *multiArg) Set(value string) error {
|
|
logrus.Debugf("Appending to multi args %s", value)
|
|
*b = append(*b, value)
|
|
return nil
|
|
}
|
|
|
|
// The third is Type() string
|
|
func (b *multiArg) Type() string {
|
|
return "multi-arg type"
|
|
}
|
|
|
|
func (b *multiArg) Contains(v string) bool {
|
|
for _, s := range *b {
|
|
if s == v {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// This type is used to supported passing in multiple key=value flags
|
|
type keyValueArg map[string]string
|
|
|
|
// Now, for our new type, implement the two methods of
|
|
// the flag.Value interface...
|
|
// The first method is String() string
|
|
func (a *keyValueArg) String() string {
|
|
var result []string
|
|
for key := range *a {
|
|
result = append(result, fmt.Sprintf("%s=%s", key, (*a)[key]))
|
|
}
|
|
return strings.Join(result, ",")
|
|
}
|
|
|
|
// The second method is Set(value string) error
|
|
func (a *keyValueArg) Set(value string) error {
|
|
valueSplit := strings.SplitN(value, "=", 2)
|
|
if len(valueSplit) < 2 {
|
|
return fmt.Errorf("invalid argument value. expect key=value, got %s", value)
|
|
}
|
|
(*a)[valueSplit[0]] = valueSplit[1]
|
|
return nil
|
|
}
|
|
|
|
// The third is Type() string
|
|
func (a *keyValueArg) Type() string {
|
|
return "key-value-arg type"
|
|
}
|
|
|
|
type multiKeyMultiValueArg map[string][]string
|
|
|
|
func (c *multiKeyMultiValueArg) parseKV(value string) error {
|
|
valueSplit := strings.SplitN(value, "=", 2)
|
|
if len(valueSplit) < 2 {
|
|
return fmt.Errorf("invalid argument value. expect key=value, got %s", value)
|
|
}
|
|
(*c)[valueSplit[0]] = append((*c)[valueSplit[0]], valueSplit[1])
|
|
return nil
|
|
}
|
|
|
|
func (c *multiKeyMultiValueArg) String() string {
|
|
var result []string
|
|
for key := range *c {
|
|
for _, val := range (*c)[key] {
|
|
result = append(result, fmt.Sprintf("%s=%s", key, val))
|
|
}
|
|
}
|
|
return strings.Join(result, ";")
|
|
|
|
}
|
|
|
|
func (c *multiKeyMultiValueArg) Set(value string) error {
|
|
if value == "" {
|
|
return nil
|
|
}
|
|
if strings.Contains(value, ";") {
|
|
kvpairs := strings.Split(value, ";")
|
|
for _, kv := range kvpairs {
|
|
err := c.parseKV(kv)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
return c.parseKV(value)
|
|
}
|
|
|
|
func (c *multiKeyMultiValueArg) Type() string {
|
|
return "key-multi-value-arg type"
|
|
}
|