Method postProcessPositionals

lib/command.ts:627–705

(
    argv: Arguments,
    positionalMap: Dictionary<string[]>,
    parseOptions: Positionals,
    yargs: YargsInstance
  )

  // we run yargs-parser against the positional arguments
  // applying the same parsing logic used for flags.
  private postProcessPositionals(
    argv: Arguments,
    positionalMap: Dictionary<string[]>,
    parseOptions: Positionals,
    yargs: YargsInstance
  ) {
    // combine the parsing hints we've inferred from the command
    // string with explicitly configured parsing hints.
    const options = Object.assign({}, yargs.getOptions());
    options.default = Object.assign(parseOptions.default, options.default);
    for (const key of Object.keys(parseOptions.alias)) {
      options.alias[key] = (options.alias[key] || []).concat(
        parseOptions.alias[key]
      );
    }
    options.array = options.array.concat(parseOptions.array);
    options.config = {}; //  don't load config when processing positionals.

    const unparsed: string[] = [];
    Object.keys(positionalMap).forEach(key => {
      positionalMap[key].map(value => {
        if (options.configuration['unknown-options-as-args'])
          options.key[key] = true;
        unparsed.push(`--${key}`);
        unparsed.push(value);
      });
    });

    // short-circuit parse.
    if (!unparsed.length) return;

    const config: Configuration = Object.assign({}, options.configuration, {
      'populate--': false,
    });

    const parsed = this.shim.Parser.detailed(
      unparsed,
      Object.assign({}, options, {
        configuration: config,
      })
    );

    if (parsed.error) {
      yargs
        .getInternalMethods()
        .getUsageInstance()
        .fail(parsed.error.message, parsed.error);
    } else {
      // only copy over positional keys (don't overwrite
      // flag arguments that were already parsed).
      const positionalKeys = Object.keys(positionalMap);
      Object.keys(positionalMap).forEach(key => {
        positionalKeys.push(...parsed.aliases[key]);
      });

      Object.keys(parsed.argv).forEach(key => {
        if (positionalKeys.includes(key)) {
          // any new aliases need to be placed in positionalMap, which