Method #processArguments

packages/webpack-cli/src/webpack-cli.ts:1332–1378

(
    webpackMod: typeof webpack,
    args: Record<string, WebpackArgument>,
    configuration: RecordAny,
    values: ProcessedArguments,
  )

  }

  #processArguments(
    webpackMod: typeof webpack,
    args: Record<string, WebpackArgument>,
    configuration: RecordAny,
    values: ProcessedArguments,
  ) {
    const problems = webpackMod.cli.processArguments(args, configuration, values);

    if (problems) {
      const groupBy = <K extends keyof Problem & StringsKeys<Problem>>(xs: Problem[], key: K) =>
        xs.reduce(
          (rv, problem) => {
            const path = problem[key];

            (rv[path] ||= []).push(problem);

            return rv;
          },
          {} as Record<string, Problem[]>,
        );
      const problemsByPath = groupBy<"path">(problems, "path");

      for (const path in problemsByPath) {
        const problems = problemsByPath[path];

        for (const problem of problems) {
          this.logger.error(
            `${this.capitalizeFirstLetter(problem.type.replaceAll("-", " "))}${
              problem.value ? ` '${problem.value}'` : ""
            } for the '--${problem.argument.replaceAll(/[A-Z]/g, (m) => `-${m.toLowerCase()}`)}' option${
              problem.index ? ` by index '${problem.index}'` : ""
            }`,
          );

          if (problem.expected) {
            if (problem.expected === "true | false") {
              this.logger.error("Expected: without value or negative option");
            } else {
              this.logger.error(`Expected: '${problem.expected}'`);
            }
          }
        }
      }

      process.exit(2);
    }
  }

  async #outputHelp(
    options: string[],