index.js

const semver = require("semver");
const pkg = require("./package.json");
const requiredVersion = pkg.engines.node;
checkNodeVersion(requiredVersion, pkg.name);
function checkNodeVersion(wanted, id) {
  if (!semver.satisfies(process.version, wanted)) {
    console.log(
      "\x1B[31m%s\x1B[0m",
      "You are using Node " +
      process.version +
      ", but this version of " +
      id +
      " requires Node " +
      wanted +
      ".\nPlease upgrade your Node version."
    );
    process.exit(1);
  }
}

const chalk = require("chalk");
const internalIp = require("internal-ip");
const program = require("commander");
const handler = require("serve-handler");
const http = require("http");
const path = require("path");
const open = require("open");
const updateNotifier = require("update-notifier");

// 检查更新
function updateCheck() {
  const notifier = updateNotifier({ pkg });
  const message = [];

  if (notifier.update) {
    message.push(
      "Update available: " +
      chalk.green.bold(notifier.update.latest) +
      chalk.gray(" (current: " + notifier.update.current + ");")
    );
    message.push(
      "Run " +
      chalk.magenta("npm install -g " + pkg.name) +
      " Or " +
      chalk.magenta("yarn global add " + pkg.name) +
      " to update."
    );
    // eslint-disable-next-line no-console
    console.log(message.join("\r\n"));
  }
}
updateCheck();

const server = http.createServer((request, response) => {
  return handler(request, response, {
    public: path.resolve(
      __dirname,
      "./vue-ele-form-generator"
    )
  });
});

program.version(`fgen ${pkg.version}`).usage("<command> [options]");
program.option("-p, --port <port>", "Port used by the server", 54321);
program.parse(process.argv);

const port = program.port;
server.listen(port, async () => {
  const localUrl = "http://localhost:" + port;
  const networkUrl = await internalIp.v4();
  const networkMsg = networkUrl
    ? chalk.cyan(`http://${networkUrl}:${port}`)
    : chalk.gray("unavailable");

  console.log();
  console.log(`  App running at:`);
  console.log(`  - Local:   ${chalk.cyan(localUrl)}`);
  console.log(`  - Network: ${networkMsg}`);
  console.log();

  open(localUrl);
});