Function main

scripts/experimental/swiftui-preview.mjs:21–84

()

});

async function main() {
  const args = parseArgs(process.argv.slice(2));
  if (args.help || !args.file) {
    printUsage();
    process.exit(args.help ? 0 : 2);
  }

  const sourceFile = path.resolve(String(args.file));
  const udid = String(args.udid ?? findBootedSimulatorUDID());
  if (!udid) {
    throw new Error(
      "No simulator UDID supplied and no booted simulator was found.",
    );
  }

  const buildRoot = path.resolve(
    String(args.buildRoot ?? path.join(".simdeck-preview", "build")),
  );
  const bundleId = String(args.bundleId ?? DEFAULT_BUNDLE_ID);
  const minIos = String(args.minIos ?? DEFAULT_MIN_IOS);
  const targetArch = String(
    args.arch ?? (process.arch === "arm64" ? "arm64" : "x86_64"),
  );
  const sdkPath = runText("xcrun", [
    "--sdk",
    "iphonesimulator",
    "--show-sdk-path",
  ]).trim();
  const context = {
    buildRoot,
    bundleId,
    minIos,
    sdkPath,
    target: `${targetArch}-apple-ios${minIos}-simulator`,
    udid,
  };
  fs.mkdirSync(buildRoot, { recursive: true });
  const xcode = resolveXcodeContext(args, context);

  const host = buildHostApp(context, Boolean(args.rebuildHost));
  const shouldInstallHost =
    host.rebuilt || Boolean(xcode && !args.skipXcodeBuild);
  if (xcode && shouldInstallHost) {
    overlayXcodeAppBundle(host.appPath, xcode);
  }
  installAndLaunchHost(context, host.appPath, shouldInstallHost);
  await reloadPreview(context, sourceFile, args, xcode);

  if (args.watch) {
    console.log(`[simdeck-preview] watching ${sourceFile}`);
    watchFiles(
      [
        sourceFile,
        ...arrayArg(args.extraSwift).map((item) => path.resolve(item)),
      ],
      () => {
        reloadPreview(context, sourceFile, args, xcode).catch((error) => {
          console.error(`[simdeck-preview] reload failed: ${error.message}`);