87 lines
1.7 KiB
Go
87 lines
1.7 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: BUSL-1.1
|
|
|
|
package flag
|
|
|
|
import (
|
|
"fmt"
|
|
"sort"
|
|
"strings"
|
|
|
|
"github.com/posener/complete"
|
|
)
|
|
|
|
// -- StringMapVar and stringMapValue
|
|
type StringMapVar struct {
|
|
Name string
|
|
Aliases []string
|
|
Usage string
|
|
Default map[string]string
|
|
Hidden bool
|
|
Target *map[string]string
|
|
Completion complete.Predictor
|
|
}
|
|
|
|
func (f *Set) StringMapVar(i *StringMapVar) {
|
|
def := ""
|
|
if i.Default != nil {
|
|
def = mapToKV(i.Default)
|
|
}
|
|
|
|
f.VarFlag(&VarFlag{
|
|
Name: i.Name,
|
|
Aliases: i.Aliases,
|
|
Usage: i.Usage,
|
|
Default: def,
|
|
Value: newStringMapValue(i.Default, i.Target, i.Hidden),
|
|
Completion: i.Completion,
|
|
})
|
|
}
|
|
|
|
type stringMapValue struct {
|
|
hidden bool
|
|
target *map[string]string
|
|
}
|
|
|
|
func newStringMapValue(def map[string]string, target *map[string]string, hidden bool) *stringMapValue {
|
|
*target = def
|
|
return &stringMapValue{
|
|
hidden: hidden,
|
|
target: target,
|
|
}
|
|
}
|
|
|
|
func (s *stringMapValue) Set(val string) error {
|
|
idx := strings.Index(val, "=")
|
|
if idx == -1 {
|
|
return fmt.Errorf("missing = in KV pair: %q", val)
|
|
}
|
|
|
|
if *s.target == nil {
|
|
*s.target = make(map[string]string)
|
|
}
|
|
|
|
k, v := val[0:idx], val[idx+1:]
|
|
(*s.target)[k] = v
|
|
return nil
|
|
}
|
|
|
|
func (s *stringMapValue) Get() interface{} { return *s.target }
|
|
func (s *stringMapValue) String() string { return mapToKV(*s.target) }
|
|
func (s *stringMapValue) Example() string { return "key=value" }
|
|
func (s *stringMapValue) Hidden() bool { return s.hidden }
|
|
|
|
func mapToKV(m map[string]string) string {
|
|
list := make([]string, 0, len(m))
|
|
for k := range m {
|
|
list = append(list, k)
|
|
}
|
|
sort.Strings(list)
|
|
|
|
for i, k := range list {
|
|
list[i] = k + "=" + m[k]
|
|
}
|
|
|
|
return strings.Join(list, ",")
|
|
}
|