Function runNextCommandDev

integration-tests/utils/next-test-utils.ts:398–472

(argv, stdOut, opts: RunNextCommandDevOptions = {})

}

export function runNextCommandDev(argv, stdOut, opts: RunNextCommandDevOptions = {}) {
  const nextnextbin = getCommandBin("next", opts.cwd)
  const nextDir = path.resolve(require.resolve("next/package"))
  const nextBin = path.join(nextnextbin, "dist/bin/next")

  const cwd = opts.cwd || nextDir
  const env = {
    ...process.env,
    NODE_ENV: undefined,
    __NEXT_TEST_MODE: "true",
    ...opts.env,
  }

  const nodeArgs = opts.nodeArgs || []
  return new Promise<void>((resolve, reject) => {
    const instance = spawn("node", [...nodeArgs, "--no-deprecation", nextBin, ...argv], {
      cwd,
      env,
    } as {})
    let didResolve = false

    function handleStdout(data) {
      const message = data.toString()
      console.log(message)
      const bootupMarkers = {
        dev: /Next.js/i,
        start: /Next.js/i,
      }
      if (
        (opts.bootupMarker && opts.bootupMarker.test(message)) ||
        bootupMarkers[opts.nextStart || stdOut ? "start" : "dev"].test(message)
      ) {
        if (!didResolve) {
          didResolve = true
          resolve(stdOut ? message : instance)
        }
      }

      if (typeof opts.onStdout === "function") {
        opts.onStdout(message)
      }

      if (opts.stdout !== false) {
        process.stdout.write(message)
      }
    }

    function handleStderr(data) {
      const message = data.toString()
      if (typeof opts.onStderr === "function") {
        opts.onStderr(message)
      }

      if (opts.stderr !== false) {
        process.stderr.write(message)
      }
    }