package pflag import ( "encoding/base64" "encoding/hex" "fmt" "strings") // BytesHex adapts []byte for use as a flag. Value of flag is HEX encodedtype bytesHexValue []byte // String implements pflag.Value.String.func (bytesHex bytesHexValue) String() string { return fmt.Sprintf("%X", []byte(bytesHex))} // Set implements pflag.Value.Set.func (bytesHex *bytesHexValue) Set(value string) error { bin, err := hex.DecodeString(strings.TrimSpace(value)) if err != nil { return err } *bytesHex = bin return nil} // Type implements pflag.Value.Type.func (*bytesHexValue) Type() string { return "bytesHex"} func newBytesHexValue(val []byte, p *[]byte) *bytesHexValue { *p = val return (*bytesHexValue)(p)} func bytesHexConv(sval string) (interface{}, error) { bin, err := hex.DecodeString(sval) if err == nil { return bin, nil } return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)} // GetBytesHex return the []byte value of a flag with the given namefunc (f *FlagSet) GetBytesHex(name string) ([]byte, error) { val, err := f.getFlagType(name, "bytesHex", bytesHexConv) if err != nil { return []byte{}, err } return val.([]byte), nil} // BytesHexVar defines an []byte flag with specified name, default value, and usage string.// The argument p points to an []byte variable in which to store the value of the flag.func (f *FlagSet) BytesHexVar(p *[]byte, name string, value []byte, usage string) { f.VarP(newBytesHexValue(value, p), name, "", usage)} // BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.func (f *FlagSet) BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) { f.VarP(newBytesHexValue(value, p), name, shorthand, usage)} // BytesHexVar defines an []byte flag with specified name, default value, and usage string.// The argument p points to an []byte variable in which to store the value of the flag.func BytesHexVar(p *[]byte, name string, value []byte, usage string) { CommandLine.VarP(newBytesHexValue(value, p), name, "", usage)} // BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.func BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) { CommandLine.VarP(newBytesHexValue(value, p), name, shorthand, usage)} // BytesHex defines an []byte flag with specified name, default value, and usage string.// The return value is the address of an []byte variable that stores the value of the flag.func (f *FlagSet) BytesHex(name string, value []byte, usage string) *[]byte { p := new([]byte) f.BytesHexVarP(p, name, "", value, usage) return p} // BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.func (f *FlagSet) BytesHexP(name, shorthand string, value []byte, usage string) *[]byte { p := new([]byte) f.BytesHexVarP(p, name, shorthand, value, usage) return p} // BytesHex defines an []byte flag with specified name, default value, and usage string.// The return value is the address of an []byte variable that stores the value of the flag.func BytesHex(name string, value []byte, usage string) *[]byte { return CommandLine.BytesHexP(name, "", value, usage)} // BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.func BytesHexP(name, shorthand string, value []byte, usage string) *[]byte { return CommandLine.BytesHexP(name, shorthand, value, usage)} // BytesBase64 adapts []byte for use as a flag. Value of flag is Base64 encodedtype bytesBase64Value []byte // String implements pflag.Value.String.func (bytesBase64 bytesBase64Value) String() string { return base64.StdEncoding.EncodeToString([]byte(bytesBase64))} // Set implements pflag.Value.Set.func (bytesBase64 *bytesBase64Value) Set(value string) error { bin, err := base64.StdEncoding.DecodeString(strings.TrimSpace(value)) if err != nil { return err } *bytesBase64 = bin return nil} // Type implements pflag.Value.Type.func (*bytesBase64Value) Type() string { return "bytesBase64"} func newBytesBase64Value(val []byte, p *[]byte) *bytesBase64Value { *p = val return (*bytesBase64Value)(p)} func bytesBase64ValueConv(sval string) (interface{}, error) { bin, err := base64.StdEncoding.DecodeString(sval) if err == nil { return bin, nil } return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)} // GetBytesBase64 return the []byte value of a flag with the given namefunc (f *FlagSet) GetBytesBase64(name string) ([]byte, error) { val, err := f.getFlagType(name, "bytesBase64", bytesBase64ValueConv) if err != nil { return []byte{}, err } return val.([]byte), nil} // BytesBase64Var defines an []byte flag with specified name, default value, and usage string.// The argument p points to an []byte variable in which to store the value of the flag.func (f *FlagSet) BytesBase64Var(p *[]byte, name string, value []byte, usage string) { f.VarP(newBytesBase64Value(value, p), name, "", usage)} // BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.func (f *FlagSet) BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) { f.VarP(newBytesBase64Value(value, p), name, shorthand, usage)} // BytesBase64Var defines an []byte flag with specified name, default value, and usage string.// The argument p points to an []byte variable in which to store the value of the flag.func BytesBase64Var(p *[]byte, name string, value []byte, usage string) { CommandLine.VarP(newBytesBase64Value(value, p), name, "", usage)} // BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.func BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) { CommandLine.VarP(newBytesBase64Value(value, p), name, shorthand, usage)} // BytesBase64 defines an []byte flag with specified name, default value, and usage string.// The return value is the address of an []byte variable that stores the value of the flag.func (f *FlagSet) BytesBase64(name string, value []byte, usage string) *[]byte { p := new([]byte) f.BytesBase64VarP(p, name, "", value, usage) return p} // BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.func (f *FlagSet) BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte { p := new([]byte) f.BytesBase64VarP(p, name, shorthand, value, usage) return p} // BytesBase64 defines an []byte flag with specified name, default value, and usage string.// The return value is the address of an []byte variable that stores the value of the flag.func BytesBase64(name string, value []byte, usage string) *[]byte { return CommandLine.BytesBase64P(name, "", value, usage)} // BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.func BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte { return CommandLine.BytesBase64P(name, shorthand, value, usage)}
package pflag
import (
"encoding/base64"
"encoding/hex"
"fmt"
"strings"
)
// BytesHex adapts []byte for use as a flag. Value of flag is HEX encoded
type bytesHexValue []byte
// String implements pflag.Value.String.
func (bytesHex bytesHexValue) String() string {
return fmt.Sprintf("%X", []byte(bytesHex))
}
// Set implements pflag.Value.Set.
func (bytesHex *bytesHexValue) Set(value string) error {
bin, err := hex.DecodeString(strings.TrimSpace(value))
if err != nil {
return err
}
*bytesHex = bin
return nil
}
// Type implements pflag.Value.Type.
func (*bytesHexValue) Type() string {
return "bytesHex"
}
func newBytesHexValue(val []byte, p *[]byte) *bytesHexValue {
*p = val
return (*bytesHexValue)(p)
}
func bytesHexConv(sval string) (interface{}, error) {
bin, err := hex.DecodeString(sval)
if err == nil {
return bin, nil
}
return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)
}
// GetBytesHex return the []byte value of a flag with the given name
func (f *FlagSet) GetBytesHex(name string) ([]byte, error) {
val, err := f.getFlagType(name, "bytesHex", bytesHexConv)
if err != nil {
return []byte{}, err
}
return val.([]byte), nil
}
// BytesHexVar defines an []byte flag with specified name, default value, and usage string.
// The argument p points to an []byte variable in which to store the value of the flag.
func (f *FlagSet) BytesHexVar(p *[]byte, name string, value []byte, usage string) {
f.VarP(newBytesHexValue(value, p), name, "", usage)
}
// BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) {
f.VarP(newBytesHexValue(value, p), name, shorthand, usage)
}
// BytesHexVar defines an []byte flag with specified name, default value, and usage string.
// The argument p points to an []byte variable in which to store the value of the flag.
func BytesHexVar(p *[]byte, name string, value []byte, usage string) {
CommandLine.VarP(newBytesHexValue(value, p), name, "", usage)
}
// BytesHexVarP is like BytesHexVar, but accepts a shorthand letter that can be used after a single dash.
func BytesHexVarP(p *[]byte, name, shorthand string, value []byte, usage string) {
CommandLine.VarP(newBytesHexValue(value, p), name, shorthand, usage)
}
// BytesHex defines an []byte flag with specified name, default value, and usage string.
// The return value is the address of an []byte variable that stores the value of the flag.
func (f *FlagSet) BytesHex(name string, value []byte, usage string) *[]byte {
p := new([]byte)
f.BytesHexVarP(p, name, "", value, usage)
return p
}
// BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
p := new([]byte)
f.BytesHexVarP(p, name, shorthand, value, usage)
return p
}
// BytesHex defines an []byte flag with specified name, default value, and usage string.
// The return value is the address of an []byte variable that stores the value of the flag.
func BytesHex(name string, value []byte, usage string) *[]byte {
return CommandLine.BytesHexP(name, "", value, usage)
}
// BytesHexP is like BytesHex, but accepts a shorthand letter that can be used after a single dash.
func BytesHexP(name, shorthand string, value []byte, usage string) *[]byte {
return CommandLine.BytesHexP(name, shorthand, value, usage)
}
// BytesBase64 adapts []byte for use as a flag. Value of flag is Base64 encoded
type bytesBase64Value []byte
// String implements pflag.Value.String.
func (bytesBase64 bytesBase64Value) String() string {
return base64.StdEncoding.EncodeToString([]byte(bytesBase64))
}
// Set implements pflag.Value.Set.
func (bytesBase64 *bytesBase64Value) Set(value string) error {
bin, err := base64.StdEncoding.DecodeString(strings.TrimSpace(value))
if err != nil {
return err
}
*bytesBase64 = bin
return nil
}
// Type implements pflag.Value.Type.
func (*bytesBase64Value) Type() string {
return "bytesBase64"
}
func newBytesBase64Value(val []byte, p *[]byte) *bytesBase64Value {
*p = val
return (*bytesBase64Value)(p)
}
func bytesBase64ValueConv(sval string) (interface{}, error) {
bin, err := base64.StdEncoding.DecodeString(sval)
if err == nil {
return bin, nil
}
return nil, fmt.Errorf("invalid string being converted to Bytes: %s %s", sval, err)
}
// GetBytesBase64 return the []byte value of a flag with the given name
func (f *FlagSet) GetBytesBase64(name string) ([]byte, error) {
val, err := f.getFlagType(name, "bytesBase64", bytesBase64ValueConv)
if err != nil {
return []byte{}, err
}
return val.([]byte), nil
}
// BytesBase64Var defines an []byte flag with specified name, default value, and usage string.
// The argument p points to an []byte variable in which to store the value of the flag.
func (f *FlagSet) BytesBase64Var(p *[]byte, name string, value []byte, usage string) {
f.VarP(newBytesBase64Value(value, p), name, "", usage)
}
// BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) {
f.VarP(newBytesBase64Value(value, p), name, shorthand, usage)
}
// BytesBase64Var defines an []byte flag with specified name, default value, and usage string.
// The argument p points to an []byte variable in which to store the value of the flag.
func BytesBase64Var(p *[]byte, name string, value []byte, usage string) {
CommandLine.VarP(newBytesBase64Value(value, p), name, "", usage)
}
// BytesBase64VarP is like BytesBase64Var, but accepts a shorthand letter that can be used after a single dash.
func BytesBase64VarP(p *[]byte, name, shorthand string, value []byte, usage string) {
CommandLine.VarP(newBytesBase64Value(value, p), name, shorthand, usage)
}
// BytesBase64 defines an []byte flag with specified name, default value, and usage string.
// The return value is the address of an []byte variable that stores the value of the flag.
func (f *FlagSet) BytesBase64(name string, value []byte, usage string) *[]byte {
p := new([]byte)
f.BytesBase64VarP(p, name, "", value, usage)
return p
}
// BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte {
p := new([]byte)
f.BytesBase64VarP(p, name, shorthand, value, usage)
return p
}
// BytesBase64 defines an []byte flag with specified name, default value, and usage string.
// The return value is the address of an []byte variable that stores the value of the flag.
func BytesBase64(name string, value []byte, usage string) *[]byte {
return CommandLine.BytesBase64P(name, "", value, usage)
}
// BytesBase64P is like BytesBase64, but accepts a shorthand letter that can be used after a single dash.
func BytesBase64P(name, shorthand string, value []byte, usage string) *[]byte {
return CommandLine.BytesBase64P(name, shorthand, value, usage)
}