How to use @kosko/generate - 5 common examples

builder(argv) {
    /* istanbul ignore next */
    return generateBuilder(argv)
      .option("output", {
        type: "string",
        describe: "Output format",
        default: PrintFormat.YAML,
        choices: Object.keys(PrintFormat).map(key => (PrintFormat as any)[key]),
        alias: "o"
      })
      .option("validate", {
        type: "boolean",
        describe: "Validate components",
        default: true
      })
      .example("$0 generate", "Generate manifests")
      .example("$0 generate foo bar", "Specify components")
      .example("$0 generate foo_*", "Use glob pattern")
      .example("$0 generate --env foo", "Set environment")
      .example("$0 generate -r ts-node/register", "Require external modules");
  },
  async handler(args) {

if (config.paths && config.paths.environment) {
      const paths = config.paths.environment;
      if (paths.global) env.paths.global = paths.global;
      if (paths.component) env.paths.component = paths.component;
    }

    debug("Set env as", args.env);
  }

  // Require external modules
  for (const id of config.require) {
    await localRequire(id, args.cwd);
  }

  // Generate manifests
  const result = await generate({
    path: join(args.cwd, "components"),
    components: config.components,
    extensions: config.extensions,
    validate: args.validate
  });

  if (!result.manifests.length) {
    throw new CLIError("No manifests are exported from components", {
      output: `No manifests are exported from components. Make sure there are exported manifests in components.`
    });
  }

  return result;
}

test("should call print with given format", () => {
      expect(print).toHaveBeenCalledWith(result, {
        format: PrintFormat.YAML,
        writer: process.stdout
      });
    });
  });

beforeAll(() => {
      args.output = PrintFormat.YAML;
    });

async handler(args) {
    const result = await generateHandler(args);

    print(result, {
      format: args.output,
      writer: process.stdout
    });
  }
};