Function main

packages/cli/lib/cli.js:174–233

(opts, log)

};

function main(opts, log) {
  const dryRun = opts.dryRun || opts['dry-run'];
  log = log || console.log;
  if (opts.version) {
    printVersions(log);
    return;
  }

  const env = setupGenerators();

  // list generators
  if (opts.commands) {
    printCommands(env, log);
    return;
  }

  const yoJsonFile = path.join(__dirname, '../.yo-rc.json');
  if (opts.meta) {
    const optionsAndArgs = {
      base: baseOptions,
    };
    const meta = env.getGeneratorsMeta();
    for (const ns in meta) {
      const gen = env.create(ns, {options: {help: true}});
      const name = ns.substring('loopback4:'.length);
      const commandOptions = {};
      for (const n in gen._options) {
        const opt = gen._options[n];
        commandOptions[n] = {...opt, type: opt.type.name};
      }
      const commandArgs = [];
      if (!gen) {
        for (const arg of gen._arguments) {
          commandArgs.push({...arg, type: arg.type.name});
        }
      }
      optionsAndArgs[name] = {
        options: commandOptions,
        arguments: commandArgs,
        name,
      };
    }

    const yoJson = fs.readJsonSync(yoJsonFile);
    const str = JSON.stringify(yoJson.commands, null, 2);
    yoJson.commands = optionsAndArgs;
    if (str !== JSON.stringify(optionsAndArgs, null, 2)) {
      if (!dryRun) {
        fs.writeJsonSync(yoJsonFile, yoJson, {spaces: 2, encoding: 'utf-8'});
      }
      log('%s has been updated.', path.relative(process.cwd(), yoJsonFile));
    } else {
      log('%s is up to date.', path.relative(process.cwd(), yoJsonFile));
    }

    return optionsAndArgs;
  }