addHelpOption method
void
addHelpOption({
- String name = 'help',
- String? short = 'h',
- String description = 'Show this help',
- StringSink? sink,
Adds a help option to this parser that prints the usage.
Implementation
void addHelpOption(
{String name = 'help',
String? short = 'h',
String description = 'Show this help',
StringSink? sink}) {
addFlag(name, short: short, description: description, onParse: (_) {
findSelectedParser().printUsage(sink: sink, showShortUsage: false);
exit(0);
});
}