mirror of
https://github.com/Luzifer/gcr-clean.git
synced 2024-12-23 03:41:19 +00:00
161 lines
5.2 KiB
Go
161 lines
5.2 KiB
Go
|
package pflag
|
||
|
|
||
|
import (
|
||
|
"bytes"
|
||
|
"encoding/csv"
|
||
|
"fmt"
|
||
|
"strings"
|
||
|
)
|
||
|
|
||
|
// -- stringToString Value
|
||
|
type stringToStringValue struct {
|
||
|
value *map[string]string
|
||
|
changed bool
|
||
|
}
|
||
|
|
||
|
func newStringToStringValue(val map[string]string, p *map[string]string) *stringToStringValue {
|
||
|
ssv := new(stringToStringValue)
|
||
|
ssv.value = p
|
||
|
*ssv.value = val
|
||
|
return ssv
|
||
|
}
|
||
|
|
||
|
// Format: a=1,b=2
|
||
|
func (s *stringToStringValue) Set(val string) error {
|
||
|
var ss []string
|
||
|
n := strings.Count(val, "=")
|
||
|
switch n {
|
||
|
case 0:
|
||
|
return fmt.Errorf("%s must be formatted as key=value", val)
|
||
|
case 1:
|
||
|
ss = append(ss, strings.Trim(val, `"`))
|
||
|
default:
|
||
|
r := csv.NewReader(strings.NewReader(val))
|
||
|
var err error
|
||
|
ss, err = r.Read()
|
||
|
if err != nil {
|
||
|
return err
|
||
|
}
|
||
|
}
|
||
|
|
||
|
out := make(map[string]string, len(ss))
|
||
|
for _, pair := range ss {
|
||
|
kv := strings.SplitN(pair, "=", 2)
|
||
|
if len(kv) != 2 {
|
||
|
return fmt.Errorf("%s must be formatted as key=value", pair)
|
||
|
}
|
||
|
out[kv[0]] = kv[1]
|
||
|
}
|
||
|
if !s.changed {
|
||
|
*s.value = out
|
||
|
} else {
|
||
|
for k, v := range out {
|
||
|
(*s.value)[k] = v
|
||
|
}
|
||
|
}
|
||
|
s.changed = true
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
func (s *stringToStringValue) Type() string {
|
||
|
return "stringToString"
|
||
|
}
|
||
|
|
||
|
func (s *stringToStringValue) String() string {
|
||
|
records := make([]string, 0, len(*s.value)>>1)
|
||
|
for k, v := range *s.value {
|
||
|
records = append(records, k+"="+v)
|
||
|
}
|
||
|
|
||
|
var buf bytes.Buffer
|
||
|
w := csv.NewWriter(&buf)
|
||
|
if err := w.Write(records); err != nil {
|
||
|
panic(err)
|
||
|
}
|
||
|
w.Flush()
|
||
|
return "[" + strings.TrimSpace(buf.String()) + "]"
|
||
|
}
|
||
|
|
||
|
func stringToStringConv(val string) (interface{}, error) {
|
||
|
val = strings.Trim(val, "[]")
|
||
|
// An empty string would cause an empty map
|
||
|
if len(val) == 0 {
|
||
|
return map[string]string{}, nil
|
||
|
}
|
||
|
r := csv.NewReader(strings.NewReader(val))
|
||
|
ss, err := r.Read()
|
||
|
if err != nil {
|
||
|
return nil, err
|
||
|
}
|
||
|
out := make(map[string]string, len(ss))
|
||
|
for _, pair := range ss {
|
||
|
kv := strings.SplitN(pair, "=", 2)
|
||
|
if len(kv) != 2 {
|
||
|
return nil, fmt.Errorf("%s must be formatted as key=value", pair)
|
||
|
}
|
||
|
out[kv[0]] = kv[1]
|
||
|
}
|
||
|
return out, nil
|
||
|
}
|
||
|
|
||
|
// GetStringToString return the map[string]string value of a flag with the given name
|
||
|
func (f *FlagSet) GetStringToString(name string) (map[string]string, error) {
|
||
|
val, err := f.getFlagType(name, "stringToString", stringToStringConv)
|
||
|
if err != nil {
|
||
|
return map[string]string{}, err
|
||
|
}
|
||
|
return val.(map[string]string), nil
|
||
|
}
|
||
|
|
||
|
// StringToStringVar defines a string flag with specified name, default value, and usage string.
|
||
|
// The argument p points to a map[string]string variable in which to store the values of the multiple flags.
|
||
|
// The value of each argument will not try to be separated by comma
|
||
|
func (f *FlagSet) StringToStringVar(p *map[string]string, name string, value map[string]string, usage string) {
|
||
|
f.VarP(newStringToStringValue(value, p), name, "", usage)
|
||
|
}
|
||
|
|
||
|
// StringToStringVarP is like StringToStringVar, but accepts a shorthand letter that can be used after a single dash.
|
||
|
func (f *FlagSet) StringToStringVarP(p *map[string]string, name, shorthand string, value map[string]string, usage string) {
|
||
|
f.VarP(newStringToStringValue(value, p), name, shorthand, usage)
|
||
|
}
|
||
|
|
||
|
// StringToStringVar defines a string flag with specified name, default value, and usage string.
|
||
|
// The argument p points to a map[string]string variable in which to store the value of the flag.
|
||
|
// The value of each argument will not try to be separated by comma
|
||
|
func StringToStringVar(p *map[string]string, name string, value map[string]string, usage string) {
|
||
|
CommandLine.VarP(newStringToStringValue(value, p), name, "", usage)
|
||
|
}
|
||
|
|
||
|
// StringToStringVarP is like StringToStringVar, but accepts a shorthand letter that can be used after a single dash.
|
||
|
func StringToStringVarP(p *map[string]string, name, shorthand string, value map[string]string, usage string) {
|
||
|
CommandLine.VarP(newStringToStringValue(value, p), name, shorthand, usage)
|
||
|
}
|
||
|
|
||
|
// StringToString defines a string flag with specified name, default value, and usage string.
|
||
|
// The return value is the address of a map[string]string variable that stores the value of the flag.
|
||
|
// The value of each argument will not try to be separated by comma
|
||
|
func (f *FlagSet) StringToString(name string, value map[string]string, usage string) *map[string]string {
|
||
|
p := map[string]string{}
|
||
|
f.StringToStringVarP(&p, name, "", value, usage)
|
||
|
return &p
|
||
|
}
|
||
|
|
||
|
// StringToStringP is like StringToString, but accepts a shorthand letter that can be used after a single dash.
|
||
|
func (f *FlagSet) StringToStringP(name, shorthand string, value map[string]string, usage string) *map[string]string {
|
||
|
p := map[string]string{}
|
||
|
f.StringToStringVarP(&p, name, shorthand, value, usage)
|
||
|
return &p
|
||
|
}
|
||
|
|
||
|
// StringToString defines a string flag with specified name, default value, and usage string.
|
||
|
// The return value is the address of a map[string]string variable that stores the value of the flag.
|
||
|
// The value of each argument will not try to be separated by comma
|
||
|
func StringToString(name string, value map[string]string, usage string) *map[string]string {
|
||
|
return CommandLine.StringToStringP(name, "", value, usage)
|
||
|
}
|
||
|
|
||
|
// StringToStringP is like StringToString, but accepts a shorthand letter that can be used after a single dash.
|
||
|
func StringToStringP(name, shorthand string, value map[string]string, usage string) *map[string]string {
|
||
|
return CommandLine.StringToStringP(name, shorthand, value, usage)
|
||
|
}
|