|  | package driver | 
|  |  | 
|  | import ( | 
|  | "flag" | 
|  | "strings" | 
|  | ) | 
|  |  | 
|  | // GoFlags implements the plugin.FlagSet interface. | 
|  | type GoFlags struct { | 
|  | UsageMsgs []string | 
|  | } | 
|  |  | 
|  | // Bool implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) Bool(o string, d bool, c string) *bool { | 
|  | return flag.Bool(o, d, c) | 
|  | } | 
|  |  | 
|  | // Int implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) Int(o string, d int, c string) *int { | 
|  | return flag.Int(o, d, c) | 
|  | } | 
|  |  | 
|  | // Float64 implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) Float64(o string, d float64, c string) *float64 { | 
|  | return flag.Float64(o, d, c) | 
|  | } | 
|  |  | 
|  | // String implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) String(o, d, c string) *string { | 
|  | return flag.String(o, d, c) | 
|  | } | 
|  |  | 
|  | // BoolVar implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) BoolVar(b *bool, o string, d bool, c string) { | 
|  | flag.BoolVar(b, o, d, c) | 
|  | } | 
|  |  | 
|  | // IntVar implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) IntVar(i *int, o string, d int, c string) { | 
|  | flag.IntVar(i, o, d, c) | 
|  | } | 
|  |  | 
|  | // Float64Var implements the plugin.FlagSet interface. | 
|  | // the value of the flag. | 
|  | func (*GoFlags) Float64Var(f *float64, o string, d float64, c string) { | 
|  | flag.Float64Var(f, o, d, c) | 
|  | } | 
|  |  | 
|  | // StringVar implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) StringVar(s *string, o, d, c string) { | 
|  | flag.StringVar(s, o, d, c) | 
|  | } | 
|  |  | 
|  | // StringList implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) StringList(o, d, c string) *[]*string { | 
|  | return &[]*string{flag.String(o, d, c)} | 
|  | } | 
|  |  | 
|  | // ExtraUsage implements the plugin.FlagSet interface. | 
|  | func (f *GoFlags) ExtraUsage() string { | 
|  | return strings.Join(f.UsageMsgs, "\n") | 
|  | } | 
|  |  | 
|  | // AddExtraUsage implements the plugin.FlagSet interface. | 
|  | func (f *GoFlags) AddExtraUsage(eu string) { | 
|  | f.UsageMsgs = append(f.UsageMsgs, eu) | 
|  | } | 
|  |  | 
|  | // Parse implements the plugin.FlagSet interface. | 
|  | func (*GoFlags) Parse(usage func()) []string { | 
|  | flag.Usage = usage | 
|  | flag.Parse() | 
|  | args := flag.Args() | 
|  | if len(args) == 0 { | 
|  | usage() | 
|  | } | 
|  | return args | 
|  | } |