Example #1
0
func manPrintFlags(out *bytes.Buffer, flags *pflag.FlagSet) {
	flags.VisitAll(func(flag *pflag.Flag) {
		if len(flag.Deprecated) > 0 || flag.Hidden {
			return
		}
		format := ""
		if len(flag.Shorthand) > 0 {
			format = "**-%s**, **--%s**"
		} else {
			format = "%s**--%s**"
		}
		if len(flag.NoOptDefVal) > 0 {
			format = format + "["
		}
		if flag.Value.Type() == "string" {
			// put quotes on the value
			format = format + "=%q"
		} else {
			format = format + "=%s"
		}
		if len(flag.NoOptDefVal) > 0 {
			format = format + "]"
		}
		format = format + "\n\t%s\n\n"
		fmt.Fprintf(out, format, flag.Shorthand, flag.Name, flag.DefValue, flag.Usage)
	})
}
Example #2
0
// Test if the named flag is a boolean flag.
func isBooleanFlag(name string, f *flag.FlagSet) bool {
	flag := f.Lookup(name)
	if flag == nil {
		return false
	}
	return flag.Value.Type() == "bool"
}
Example #3
0
// Test if the named flag is a boolean flag.
func isBooleanShortFlag(name string, f *flag.FlagSet) bool {
	result := false
	f.VisitAll(func(f *flag.Flag) {
		if f.Shorthand == name && f.Value.Type() == "bool" {
			result = true
		}
	})
	return result
}
Example #4
0
// BindBoolFlag binds the flag based on the provided info.  If LongName == "", nothing is registered
func (f FlagInfo) BindBoolFlag(flags *pflag.FlagSet, target *bool) {
	// you can't register a flag without a long name
	if len(f.LongName) > 0 {
		// try to parse Default as a bool.  If it fails, assume false
		boolVal, err := strconv.ParseBool(f.Default)
		if err != nil {
			boolVal = false
		}

		flags.BoolVarP(target, f.LongName, f.ShortName, boolVal, f.Description)
	}
}
// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag in the flag set, if it exists.
// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
func MarkFlagFilename(flags *pflag.FlagSet, name string, extensions ...string) error {
	return flags.SetAnnotation(name, BashCompFilenameExt, extensions)
}
// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag in the flag set, if it exists.
func MarkFlagRequired(flags *pflag.FlagSet, name string) error {
	return flags.SetAnnotation(name, BashCompOneRequiredFlag, []string{"true"})
}
Example #7
0
// BindStringFlag binds the flag based on the provided info.  If LongName == "", nothing is registered
func (f FlagInfo) BindStringFlag(flags *pflag.FlagSet, target *string) {
	// you can't register a flag without a long name
	if len(f.LongName) > 0 {
		flags.StringVarP(target, f.LongName, f.ShortName, f.Default, f.Description)
	}
}