Function buildCommandSynopsisOption

cli/src/cli/help.ts:100–112

(longName: string, opt: Option)

function buildCommandSynopsis(command: Command): string {
    const positionals = command.args || [];
    const optionParts = visibleOptions(command).map(([name, opt]) => buildCommandSynopsisOption(name, opt));
    return [...optionParts, ...positionals].filter(Boolean).join(' ');
}

function buildCommandSynopsisOption(longName: string, opt: Option): string {
    const optional = opt.default !== undefined;

    let token = opt.short ? `-${opt.short}` : `--${longName}`;
    if (opt.type === 'string') {
        const meta = getOptionVariableName(longName);
        token += ` ${meta}`;
        if (opt.multiple) {
            token += '...';
        }
    }