Publish

- @now/build-utils@0.4.31-canary.1
 - @now/lambda@0.4.8-canary.0
 - @now/md@0.4.8-canary.1
 - @now/mdx-deck@0.4.17-canary.2
 - @now/node-server@0.4.25-canary.2
 - @now/node@0.4.27-canary.2
 - @now/php@0.4.12-canary.2
 - @now/static-build@0.4.16-canary.1

.circleci/config.yml

@@ -4,6 +4,8 @@ jobs:
     docker:
       - image: circleci/node:10
     working_directory: ~/repo
+    environment:
+      GOPATH: $HOME/go
     steps:
       - checkout
       - run:
@@ -24,63 +26,17 @@ jobs:
       - run:
           name: Tests
           command: yarn test
-  # publish-canary:
-  #   docker:
-  #     - image: circleci/node:10
-  #   working_directory: ~/repo
-  #   steps:
-  #     - checkout
-  #     - run:
-  #         name: Updating apt-get list
-  #         command: sudo apt-get update
-  #     - run:
-  #         name: Installing the latest version of Go
-  #         command: sudo apt-get install golang-go
-  #     - run: yarn install
-  #     - run: yarn bootstrap
-  #     - run:
-  #         name: Saving Authentication Information
-  #         command: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
-  #     - run:
-  #         name: Publishing to Canary Channel
-  #         command: yarn run lerna publish from-git --npm-tag canary --yes
-  publish-stable:
-    docker:
-      - image: circleci/node:10
-    working_directory: ~/repo
-    steps:
-      - checkout
       - run:
-          name: Updating apt-get list
+          name: Potentially save npm token
-          command: sudo apt-get update
+          command: "([[ ! -z $NPM_TOKEN ]] && echo \"//registry.npmjs.org/:_authToken=$NPM_TOKEN\" >> ~/.npmrc) || echo \"Did not write npm token\""
       - run:
-          name: Installing the latest version of Go
+          name: Potentially publish canary release
-          command: sudo apt-get install golang-go
+          command: "if ls ~/.npmrc >/dev/null 2>&1 && [[ $(git describe --exact-match 2> /dev/null || :) =~ -canary ]]; then yarn run lerna publish from-git --npm-tag canary --yes; else  echo \"Did not publish\"; fi"
-      - run: yarn install
-      - run: yarn bootstrap
       - run:
-          name: Saving Authentication Information
+          name: Potentially publish stable release
-          command: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
+          command: "if ls ~/.npmrc >/dev/null 2>&1 && [[ ! $(git describe --exact-match 2> /dev/null || :) =~ -canary ]]; then yarn run lerna publish from-git --yes; else  echo \"Did not publish\"; fi"
-      - run:
-          name: Publishing to Stable Channel
-          command: yarn run lerna publish from-git --yes
 workflows:
   version: 2
-  unscheduled:
+  build-and-deploy:
     jobs:
-      - build:
+      - build
-          filters:
-            tags:
-              only: /.*/
-      - publish-stable:
-          requires:
-            - build
-          filters:
-            tags:
-              only: /^.*(\d+\.)(\d+\.)(\*|\d+)$/
-      # - publish-canary:
-      #     requires:
-      #       - build
-      #     filters:
-      #       tags:
-      #         only: /^.*canary.*($|\b)/

.eslintrc

@@ -5,6 +5,20 @@
     "import/no-unresolved": 0,
     "import/no-dynamic-require": 0,
     "global-require": 0
-  }
+  },
+  "overrides": [
+    {
+      "files": ["test/**"],
+      "rules": {
+        "import/no-extraneous-dependencies": 0
+      },
+      "globals": {
+        "describe": true,
+        "it": true,
+        "test": true,
+        "expect": true
+      }
+    }
+  ]
 }
 

README.md

@@ -19,3 +19,9 @@ For the canary channel use:
 ```
 yarn publish-canary
 ```
+
+CircleCI will take care of publishing the updated packages to npm from there.
+
+If for some reason CircleCI fails to publish the npm package, you may do so
+manually by running `npm publish` from the package directory. Make sure to
+include the `--tag canary` parameter if you are publishing a canary release!

jest.config.js

@@ -1,4 +1,4 @@
 module.exports = {
   testEnvironment: 'node',
-  rootDir: 'test',
+  collectCoverageFrom: ['packages/**/*.{js,jsx}', '!**/node_modules/**'],
 };

package.json

@@ -26,14 +26,20 @@
     ]
   },
   "devDependencies": {
+    "@types/fs-extra": "^5.0.4",
+    "@types/glob": "^7.1.1",
     "@types/multistream": "^2.1.1",
     "@types/node": "^10.12.8",
+    "buffer-replace": "^1.0.0",
     "eslint": "^5.9.0",
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-config-prettier": "^3.1.0",
     "eslint-plugin-import": "^2.14.0",
+    "fs-extra": "^7.0.1",
+    "glob": "^7.1.3",
     "jest": "^23.6.0",
     "lint-staged": "^8.0.4",
+    "node-fetch": "^2.3.0",
     "pre-commit": "^1.2.2",
     "prettier": "^1.15.2",
     "typescript": "^3.1.6"

packages/now-build-utils/.npmignore

@@ -0,0 +1 @@
+/test

packages/now-build-utils/file-fs-ref.js

@@ -1,20 +1,38 @@
 const assert = require('assert');
 const fs = require('fs-extra');
-const MultiStream = require('multistream');
+const multiStream = require('multistream');
 const path = require('path');
 const Sema = require('async-sema');
 
+/** @typedef {{[filePath: string]: FileFsRef}} FsFiles */
+
 const semaToPreventEMFILE = new Sema(30);
 
+/**
+ * @constructor
+ * @argument {Object} options
+ * @argument {number} [options.mode=0o100644]
+ * @argument {string} options.fsPath
+ */
 class FileFsRef {
   constructor({ mode = 0o100644, fsPath }) {
     assert(typeof mode === 'number');
     assert(typeof fsPath === 'string');
+    /** @type {string} */
     this.type = 'FileFsRef';
+    /** @type {number} */
     this.mode = mode;
+    /** @type {string} */
     this.fsPath = fsPath;
   }
 
+  /**
+   * @argument {Object} options
+   * @argument {number} [options.mode=0o100644]
+   * @argument {NodeJS.ReadableStream} options.stream
+   * @argument {string} options.fsPath
+   * @returns {Promise<FileFsRef>}
+   */
   static async fromStream({ mode = 0o100644, stream, fsPath }) {
     assert(typeof mode === 'number');
     assert(typeof stream.pipe === 'function'); // is-stream
@@ -33,6 +51,9 @@ class FileFsRef {
     return new FileFsRef({ mode, fsPath });
   }
 
+  /**
+   * @returns {Promise<NodeJS.ReadableStream>}
+   */
   async toStreamAsync() {
     await semaToPreventEMFILE.acquire();
     const release = () => semaToPreventEMFILE.release();
@@ -42,19 +63,24 @@ class FileFsRef {
     return stream;
   }
 
+  /**
+   * @returns {NodeJS.ReadableStream}
+   */
   toStream() {
     let flag;
 
     // eslint-disable-next-line consistent-return
-    return new MultiStream((cb) => {
+    return multiStream((cb) => {
-      if (flag) return cb();
+      if (flag) return cb(null, null);
       flag = true;
 
-      this.toStreamAsync().then((stream) => {
+      this.toStreamAsync()
-        cb(undefined, stream);
+        .then((stream) => {
-      }).catch((error) => {
+          cb(null, stream);
-        cb(error);
+        })
-      });
+        .catch((error) => {
+          cb(error, null);
+        });
     });
   }
 }

packages/now-build-utils/file-ref.js

@@ -4,6 +4,8 @@ const multiStream = require('multistream');
 const retry = require('async-retry');
 const Sema = require('async-sema');
 
+/** @typedef {{[filePath: string]: FileRef}} Files */
+
 const semaToDownloadFromS3 = new Sema(10);
 
 class BailableError extends Error {

packages/now-build-utils/fs/bootstrap-yarn.js

@@ -0,0 +1,83 @@
+const MemoryFileSystem = require('memory-fs');
+const fs = require('fs');
+const path = require('path');
+const { spawnSync } = require('child_process');
+
+const yarnPath = spawnSync('which', ['yarn'])
+  .stdout.toString()
+  .trim();
+
+const cachePath = spawnSync(yarnPath, ['cache', 'dir'])
+  .stdout.toString()
+  .trim();
+
+spawnSync(yarnPath, ['cache', 'clean']);
+const vfs = new MemoryFileSystem();
+
+function isOutsideCachePath(filename) {
+  const relative = path.relative(cachePath, filename);
+  return relative.startsWith('..');
+}
+
+const saveCreateWriteStream = fs.createWriteStream;
+fs.createWriteStream = (...args) => {
+  const filename = args[0];
+  if (isOutsideCachePath(filename)) {
+    return saveCreateWriteStream.call(fs, ...args);
+  }
+
+  vfs.mkdirpSync(path.dirname(filename));
+  fs.writeFileSync(filename, Buffer.alloc(0));
+  const stream = vfs.createWriteStream(...args);
+
+  stream.on('finish', () => {
+    setTimeout(() => {
+      stream.emit('close');
+    });
+  });
+
+  return stream;
+};
+
+const saveReadFile = fs.readFile;
+fs.readFile = (...args) => {
+  const filename = args[0];
+  if (isOutsideCachePath(filename)) {
+    return saveReadFile.call(fs, ...args);
+  }
+
+  const callback = args[args.length - 1];
+  return vfs.readFile(...args.slice(0, -1), (error, result) => {
+    if (error) {
+      saveReadFile.call(fs, ...args);
+      return;
+    }
+
+    callback(error, result);
+  });
+};
+
+const saveCopyFile = fs.copyFile;
+fs.copyFile = (...args) => {
+  const src = args[0];
+  if (isOutsideCachePath(src)) {
+    return saveCopyFile.call(fs, ...args);
+  }
+
+  const dest = args[1];
+  const callback = args[args.length - 1];
+  const buffer = vfs.readFileSync(src);
+  return fs.writeFile(dest, buffer, callback);
+};
+
+const saveWriteFile = fs.writeFile;
+fs.writeFile = (...args) => {
+  const filename = args[0];
+  if (isOutsideCachePath(filename)) {
+    return saveWriteFile.call(fs, ...args);
+  }
+
+  return vfs.writeFile(...args);
+};
+
+require(yarnPath);

packages/now-build-utils/fs/download.js

@@ -1,20 +1,38 @@
 const path = require('path');
 const FileFsRef = require('../file-fs-ref.js');
 
+/** @typedef {import('../file-ref')} FileRef */
+/** @typedef {import('../file-fs-ref')} FileFsRef */
+/** @typedef {{[filePath: string]: FileRef|FileFsRef}} Files */
+/** @typedef {{[filePath: string]: FileFsRef}|{}} DownloadedFiles */
+
+/**
+ * @param {FileRef|FileFsRef} file
+ * @param {string} fsPath
+ * @returns {Promise<FileFsRef>}
+ */
 async function downloadFile(file, fsPath) {
   const { mode } = file;
   const stream = file.toStream();
   return FileFsRef.fromStream({ mode, stream, fsPath });
 }
 
+/**
+ * Download files to disk
+ * @argument {Files} files
+ * @argument {string} basePath
+ * @returns {Promise<DownloadedFiles>}
+ */
 module.exports = async function download(files, basePath) {
   const files2 = {};
 
-  await Promise.all(Object.keys(files).map(async (name) => {
+  await Promise.all(
-    const file = files[name];
+    Object.keys(files).map(async (name) => {
-    const fsPath = path.join(basePath, name);
+      const file = files[name];
-    files2[name] = await downloadFile(file, fsPath);
+      const fsPath = path.join(basePath, name);
-  }));
+      files2[name] = await downloadFile(file, fsPath);
+    }),
+  );
 
   return files2;
 };

packages/now-build-utils/fs/glob.js

@@ -3,15 +3,30 @@ const path = require('path');
 const vanillaGlob = require('glob');
 const FileFsRef = require('../file-fs-ref.js');
 
+/** @typedef {import('fs').Stats} Stats */
+/** @typedef {import('glob').IOptions} GlobOptions */
+/** @typedef {import('../file-fs-ref').FsFiles|{}} GlobFiles */
+
+/**
+ * @argument {string} pattern
+ * @argument {GlobOptions|string} opts
+ * @argument {string} [mountpoint]
+ * @returns {Promise<GlobFiles>}
+ */
 module.exports = function glob(pattern, opts = {}, mountpoint) {
   return new Promise((resolve, reject) => {
-    let options = opts;
+    /** @type {GlobOptions} */
-    if (typeof options === 'string') {
+    let options;
-      options = { cwd: options };
+    if (typeof opts === 'string') {
+      options = { cwd: opts };
+    } else {
+      options = opts;
     }
 
     if (!options.cwd) {
-      throw new Error('Second argument (basePath) must be specified for names of resulting files');
+      throw new Error(
+        'Second argument (basePath) must be specified for names of resulting files',
+      );
     }
 
     if (!path.isAbsolute(options.cwd)) {
@@ -26,21 +41,27 @@ module.exports = function glob(pattern, opts = {}, mountpoint) {
     vanillaGlob(pattern, options, (error, files) => {
       if (error) return reject(error);
 
-      resolve(files.reduce((files2, relativePath) => {
+      resolve(
-        const fsPath = path.join(options.cwd, relativePath);
+        files.reduce((files2, relativePath) => {
-        const stat = options.statCache[fsPath];
+          const fsPath = path.join(options.cwd, relativePath);
-        assert(stat, `statCache does not contain value for ${relativePath} (resolved to ${fsPath})`);
+          /** @type {Stats|any} */
-        if (stat.isFile()) {
+          const stat = options.statCache[fsPath];
-          let finalPath = relativePath;
+          assert(
-          if (mountpoint) finalPath = path.join(mountpoint, finalPath);
+            stat,
-          return {
+            `statCache does not contain value for ${relativePath} (resolved to ${fsPath})`,
-            ...files2,
+          );
-            [finalPath]: new FileFsRef({ mode: stat.mode, fsPath }),
+          if (stat && stat.isFile()) {
-          };
+            let finalPath = relativePath;
-        }
+            if (mountpoint) finalPath = path.join(mountpoint, finalPath);
+            return {
+              ...files2,
+              [finalPath]: new FileFsRef({ mode: stat.mode, fsPath }),
+            };
+          }
 
-        return files2;
+          return files2;
-      }, {}));
+        }, {}),
+      );
     });
   });
 };

packages/now-build-utils/fs/rename.js

@@ -1,6 +1,25 @@
+/** @typedef { import('@now/build-utils/file-ref') } FileRef */
+/** @typedef { import('@now/build-utils/file-fs-ref') } FileFsRef */
+/** @typedef {{[filePath: string]: FileRef|FileFsRef}} Files */
+
+/**
+ * @callback delegate
+ * @argument {string} name
+ * @returns {string}
+ */
+
+/**
+ * Rename files using delegate function
+ * @argument {Files} files
+ * @argument {delegate} delegate
+ * @returns {Files}
+ */
 module.exports = function rename(files, delegate) {
-  return Object.keys(files).reduce((newFiles, name) => ({
+  return Object.keys(files).reduce(
-    ...newFiles,
+    (newFiles, name) => ({
-    [delegate(name)]: files[name],
+      ...newFiles,
-  }), {});
+      [delegate(name)]: files[name],
+    }),
+    {},
+  );
 };

packages/now-build-utils/fs/run-user-scripts.js

@@ -1,3 +1,4 @@
+const assert = require('assert');
 const fs = require('fs-extra');
 const path = require('path');
 const { spawn } = require('child_process');
@@ -13,22 +14,34 @@ function spawnAsync(command, args, cwd) {
 }
 
 async function runShellScript(fsPath) {
+  assert(path.isAbsolute(fsPath));
   const destPath = path.dirname(fsPath);
   await spawnAsync(`./${path.basename(fsPath)}`, [], destPath);
   return true;
 }
 
-async function shouldUseNpm(destPath) {
+async function scanParentDirs(destPath, scriptName) {
+  assert(path.isAbsolute(destPath));
+
+  let hasScript = false;
+  let hasPackageLockJson = false;
   let currentDestPath = destPath;
+
   // eslint-disable-next-line no-constant-condition
   while (true) {
+    const packageJsonPath = path.join(currentDestPath, 'package.json');
     // eslint-disable-next-line no-await-in-loop
-    if (await fs.exists(path.join(currentDestPath, 'package.json'))) {
+    if (await fs.exists(packageJsonPath)) {
       // eslint-disable-next-line no-await-in-loop
-      if (await fs.exists(path.join(currentDestPath, 'package-lock.json'))) {
+      const packageJson = JSON.parse(await fs.readFile(packageJsonPath));
-        return true;
+      hasScript = Boolean(
-      }
+        packageJson.scripts && packageJson.scripts[scriptName],
-      return false;
+      );
+      // eslint-disable-next-line no-await-in-loop
+      hasPackageLockJson = await fs.exists(
+        path.join(currentDestPath, 'package-lock.json'),
+      );
+      break;
     }
 
     const newDestPath = path.dirname(currentDestPath);
@@ -36,16 +49,29 @@ async function shouldUseNpm(destPath) {
     currentDestPath = newDestPath;
   }
 
-  return false;
+  return { hasScript, hasPackageLockJson };
 }
 
 async function runNpmInstall(destPath, args = []) {
+  assert(path.isAbsolute(destPath));
+
   let commandArgs = args;
   console.log(`installing to ${destPath}`);
-  if (await shouldUseNpm(destPath)) {
+  const { hasPackageLockJson } = await scanParentDirs(destPath);
+
+  if (hasPackageLockJson) {
     commandArgs = args.filter(a => a !== '--prefer-offline');
     await spawnAsync('npm', ['install'].concat(commandArgs), destPath);
     await spawnAsync('npm', ['cache', 'clean', '--force'], destPath);
+  } else if (process.env.AWS_EXECUTION_ENV) {
+    console.log('using memory-fs for yarn cache');
+    await spawnAsync(
+      'node',
+      [path.join(__dirname, 'bootstrap-yarn.js'), '--cwd', destPath].concat(
+        commandArgs,
+      ),
+      destPath,
+    );
   } else {
     await spawnAsync('yarn', ['--cwd', destPath].concat(commandArgs), destPath);
     await spawnAsync('yarn', ['cache', 'clean'], destPath);
@@ -53,21 +79,19 @@ async function runNpmInstall(destPath, args = []) {
 }
 
 async function runPackageJsonScript(destPath, scriptName) {
-  try {
+  assert(path.isAbsolute(destPath));
-    if (await shouldUseNpm(destPath)) {
+  const { hasScript, hasPackageLockJson } = await scanParentDirs(
-      console.log(`running "npm run ${scriptName}"`);
+    destPath,
-      await spawnAsync('npm', ['run', scriptName], destPath);
+    scriptName,
-    } else {
+  );
-      console.log(`running "yarn run ${scriptName}"`);
+  if (!hasScript) return false;
-      await spawnAsync(
+
-        'yarn',
+  if (hasPackageLockJson) {
-        ['--cwd', destPath, 'run', scriptName],
+    console.log(`running "npm run ${scriptName}"`);
-        destPath,
+    await spawnAsync('npm', ['run', scriptName], destPath);
-      );
+  } else {
-    }
+    console.log(`running "yarn run ${scriptName}"`);
-  } catch (error) {
+    await spawnAsync('yarn', ['--cwd', destPath, 'run', scriptName], destPath);
-    console.log(error.message);
-    return false;
   }
 
   return true;

packages/now-build-utils/lambda.js

@@ -25,16 +25,21 @@ async function createLambda({
   assert(typeof environment === 'object', '"environment" is not an object');
   const zipFile = new ZipFile();
 
-  Object.keys(files).sort().forEach((name) => {
+  Object.keys(files)
-    const file = files[name];
+    .sort()
-    const stream = file.toStream();
+    .forEach((name) => {
-    zipFile.addReadStream(stream, name, { mode: file.mode, mtime });
+      const file = files[name];
-  });
+      const stream = file.toStream();
+      zipFile.addReadStream(stream, name, { mode: file.mode, mtime });
+    });
 
   zipFile.end();
   const zipBuffer = await streamToBuffer(zipFile.outputStream);
   return new Lambda({
-    zipBuffer, handler, runtime, environment,
+    zipBuffer,
+    handler,
+    runtime,
+    environment,
   });
 }
 

packages/now-build-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/build-utils",
-  "version": "0.4.29-canary.2",
+  "version": "0.4.31-canary.1",
   "dependencies": {
     "async-retry": "1.2.3",
     "async-sema": "2.1.4",
@@ -8,8 +8,12 @@
     "fs-extra": "7.0.0",
     "glob": "7.1.3",
     "into-stream": "4.0.0",
+    "memory-fs": "0.4.1",
     "multistream": "2.1.1",
     "node-fetch": "2.2.0",
     "yazl": "2.4.3"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }

packages/now-build-utils/test/fixtures/08-yarn-npm/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "with-npm/index.js", "use": "@now/node" },
+    { "src": "with-yarn/index.js", "use": "@now/node" }
+  ],
+  "probes": [
+    { "path": "/with-npm", "mustContain": "npm:RANDOMNESS_PLACEHOLDER" },
+    { "path": "/with-yarn", "mustContain": "yarn:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-build-utils/test/fixtures/08-yarn-npm/with-npm/must-be-npm.js

@@ -0,0 +1,14 @@
+const fs = require('fs');
+const path = require('path');
+
+const execpath = path.basename(process.env.npm_execpath);
+console.log('execpath', execpath);
+
+if (execpath === 'npm-cli.js') {
+  fs.writeFileSync(
+    'index.js',
+    'module.exports = (_, resp) => resp.end("npm:RANDOMNESS_PLACEHOLDER");',
+  );
+} else {
+  throw new Error('npm is expected');
+}

packages/now-build-utils/test/fixtures/08-yarn-npm/with-npm/package-lock.json

@@ -0,0 +1,3 @@
+{
+  "lockfileVersion": 1
+}

packages/now-build-utils/test/fixtures/08-yarn-npm/with-npm/package.json

@@ -0,0 +1,5 @@
+{
+  "scripts": {
+    "now-build": "node must-be-npm.js"
+  }
+}

packages/now-build-utils/test/fixtures/08-yarn-npm/with-yarn/must-be-yarn.js

@@ -0,0 +1,14 @@
+const fs = require('fs');
+const path = require('path');
+
+const execpath = path.basename(process.env.npm_execpath);
+console.log('execpath', execpath);
+
+if (execpath === 'yarn.js' || execpath === 'yarn') {
+  fs.writeFileSync(
+    'index.js',
+    'module.exports = (_, resp) => resp.end("yarn:RANDOMNESS_PLACEHOLDER");',
+  );
+} else {
+  throw new Error('yarn is expected');
+}

packages/now-build-utils/test/fixtures/08-yarn-npm/with-yarn/package.json

@@ -0,0 +1,5 @@
+{
+  "scripts": {
+    "now-build": "node must-be-yarn.js"
+  }
+}

packages/now-build-utils/test/test.js

@@ -0,0 +1,56 @@
+/* global beforeAll, expect, it, jest */
+const fs = require('fs');
+const path = require('path');
+
+const {
+  packAndDeploy,
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(2 * 60 * 1000);
+let buildUtilsUrl;
+
+beforeAll(async () => {
+  const buildUtilsPath = path.resolve(__dirname, '..');
+  buildUtilsUrl = await packAndDeploy(buildUtilsPath);
+  console.log('buildUtilsUrl', buildUtilsUrl);
+});
+
+// own fixtures
+
+const fixturesPath = path.resolve(__dirname, 'fixtures');
+
+// eslint-disable-next-line no-restricted-syntax
+for (const fixture of fs.readdirSync(fixturesPath)) {
+  // eslint-disable-next-line no-loop-func
+  it(`should build ${fixture}`, async () => {
+    await expect(
+      testDeployment({ buildUtilsUrl }, path.join(fixturesPath, fixture)),
+    ).resolves.toBeDefined();
+  });
+}
+
+// few foreign tests
+
+const buildersToTestWith = ['now-node-server', 'now-static-build'];
+
+// eslint-disable-next-line no-restricted-syntax
+for (const builder of buildersToTestWith) {
+  const fixturesPath2 = path.resolve(
+    __dirname,
+    `../../${builder}/test/fixtures`,
+  );
+
+  // eslint-disable-next-line no-restricted-syntax
+  for (const fixture of fs.readdirSync(fixturesPath2)) {
+    // don't run all foreign fixtures, just some
+    if (['01-cowsay', '03-env-vars'].includes(fixture)) {
+      // eslint-disable-next-line no-loop-func
+      it(`should build ${builder}/${fixture}`, async () => {
+        await expect(
+          testDeployment({ buildUtilsUrl }, path.join(fixturesPath2, fixture)),
+        ).resolves.toBeDefined();
+      });
+    }
+  }
+}

packages/now-cgi/build.sh

@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
 export GOOS=linux
 export GOARCH=amd64
+export GOPATH=$HOME/go
+go get github.com/aws/aws-lambda-go/events
+go get github.com/aws/aws-lambda-go/lambda
 go build -o handler main.go

packages/now-cgi/main.go

@@ -70,7 +70,7 @@ func (h *CgiHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		Path: h.Script,
 		Root: "/" + h.Script,
 		Dir: h.Dir,
-		Env: []string{"SERVER_PORT=443"},
+		Env: []string{"SERVER_PORT=443", "HTTPS=on", "SERVER_SOFTWARE=@now/cgi"},
 	}
 	cgih.ServeHTTP(w, r)
 }

packages/now-cgi/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/cgi",
-  "version": "0.0.12-canary.1",
+  "version": "0.0.13",
   "scripts": {
     "test": "best -I test/*.js",
     "prepublish": "./build.sh"

packages/now-go/main.go

@@ -91,7 +91,10 @@ func main() {
 		for k, v := range req.Headers {
 			internalReq.Header.Add(k, v)
 			if strings.ToLower(k) == "host" {
-				req.Host = v
+				// we need to set `Host` in the request
+				// because Go likes to ignore the `Host` header
+				// see https://github.com/golang/go/issues/7682
+				internalReq.Host = v
 			}
 		}
 
@@ -108,12 +111,7 @@ func main() {
 		for k, v := range internalRes.Header {
 			// FIXME: support multiple values via concatenating with ','
 			// see RFC 7230, section 3.2.2
-			if strings.ToLower(k) == "x-now-response-encoding" {
+			resHeaders[k] = v[0]
-				// we don't want to send this header down
-				resEncoding = v[0]
-			} else {
-				resHeaders[k] = v[0]
-			}
 		}
 
 		bodyBytes, err := ioutil.ReadAll(internalRes.Body)
@@ -121,17 +119,12 @@ func main() {
 			return createErrorResponse("Bad gateway", "bad_gateway", 502)
 		}
 
-		var resBody string
+		resBody = b64.StdEncoding.EncodeToString(bodyBytes)
-		if resEncoding == "base64" {
-			resBody = b64.StdEncoding.EncodeToString(bodyBytes)
-		} else {
-			resBody = string(bodyBytes)
-		}
 
 		return Response{
 			StatusCode: internalRes.StatusCode,
 			Headers:    resHeaders,
-			Encoding:   resEncoding,
+			Encoding:   "base64",
 			Body:       resBody,
 		}, nil
 	}

packages/now-go/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/go",
-  "version": "0.2.9-canary.1",
+  "version": "0.2.11-canary.0",
   "scripts": {
     "test": "best -I test/*.js",
     "prepublish": "./build.sh"

packages/now-html-minifier/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/html-minifier",
-  "version": "1.0.5-canary.0",
+  "version": "1.0.6",
   "dependencies": {
     "html-minifier": "3.5.21"
   },

packages/now-lambda/.npmignore

@@ -0,0 +1 @@
+/test

packages/now-lambda/package.json

@@ -1,7 +1,10 @@
 {
   "name": "@now/lambda",
-  "version": "0.4.6-canary.0",
+  "version": "0.4.8-canary.0",
   "peerDependencies": {
     "@now/build-utils": ">=0.0.1"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }

packages/now-lambda/test/fixtures/01-cowsay/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.zip", "use": "@now/lambda", "config": { "handler": "index.handler", "runtime": "nodejs8.10" } },
+    { "src": "subdirectory/index.zip", "use": "@now/lambda", "config": { "handler": "index.handler", "runtime": "nodejs8.10" } }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "cow:NO_REPLACE_TO_AVOID_CRC_MISMATCH" },
+    { "path": "/subdirectory/", "mustContain": "yoda:NO_REPLACE_TO_AVOID_CRC_MISMATCH" }
+  ]
+}

packages/now-lambda/test/test.js

@@ -0,0 +1,29 @@
+/* global beforeAll, expect, it, jest */
+const fs = require('fs');
+const path = require('path');
+
+const {
+  packAndDeploy,
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(2 * 60 * 1000);
+let builderUrl;
+
+beforeAll(async () => {
+  const builderPath = path.resolve(__dirname, '..');
+  builderUrl = await packAndDeploy(builderPath);
+  console.log('builderUrl', builderUrl);
+});
+
+const fixturesPath = path.resolve(__dirname, 'fixtures');
+
+// eslint-disable-next-line no-restricted-syntax
+for (const fixture of fs.readdirSync(fixturesPath)) {
+  // eslint-disable-next-line no-loop-func
+  it(`should build ${fixture}`, async () => {
+    await expect(
+      testDeployment({ builderUrl }, path.join(fixturesPath, fixture)),
+    ).resolves.toBeDefined();
+  });
+}

packages/now-md/.npmignore

@@ -0,0 +1 @@
+/test

packages/now-md/index.js

@@ -22,12 +22,17 @@ exports.build = async ({ files, entrypoint, config }) => {
     .use(markdown)
     .use(remark2rehype)
     .use(doc, {
-      title, language, meta, css,
+      title,
+      language,
+      meta,
+      css,
     })
     .use(format)
     .use(html);
 
-  const result = await FileBlob.fromStream({ stream: stream.pipe(unifiedStream(processor)) });
+  const result = await FileBlob.fromStream({
+    stream: stream.pipe(unifiedStream(processor)),
+  });
 
   console.log(result.data.toString());
 

packages/now-md/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/md",
-  "version": "0.4.6-canary.0",
+  "version": "0.4.8-canary.1",
   "dependencies": {
     "rehype-document": "^2.2.0",
     "rehype-format": "^2.3.0",
@@ -12,5 +12,8 @@
   },
   "peerDependencies": {
     "@now/build-utils": ">=0.0.1"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }

packages/now-md/test/fixtures/01-cowsay/index.md

@@ -0,0 +1,5 @@
+# Testing Markdown
+
+cow:RANDOMNESS_PLACEHOLDER
+
+[Wow a link!](https://zeit.co)

packages/now-md/test/fixtures/01-cowsay/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.md", "use": "@now/md" },
+    { "src": "subdirectory/index.md", "use": "@now/md" }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "cow:RANDOMNESS_PLACEHOLDER" },
+    { "path": "/subdirectory/", "mustContain": "yoda:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-md/test/fixtures/01-cowsay/subdirectory/index.md

@@ -0,0 +1,5 @@
+# Testing Markdown
+
+yoda:RANDOMNESS_PLACEHOLDER
+
+[Wow a link!](https://zeit.co)

packages/now-md/test/test.js

@@ -0,0 +1,29 @@
+/* global beforeAll, expect, it, jest */
+const fs = require('fs');
+const path = require('path');
+
+const {
+  packAndDeploy,
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(2 * 60 * 1000);
+let builderUrl;
+
+beforeAll(async () => {
+  const builderPath = path.resolve(__dirname, '..');
+  builderUrl = await packAndDeploy(builderPath);
+  console.log('builderUrl', builderUrl);
+});
+
+const fixturesPath = path.resolve(__dirname, 'fixtures');
+
+// eslint-disable-next-line no-restricted-syntax
+for (const fixture of fs.readdirSync(fixturesPath)) {
+  // eslint-disable-next-line no-loop-func
+  it(`should build ${fixture}`, async () => {
+    await expect(
+      testDeployment({ builderUrl }, path.join(fixturesPath, fixture)),
+    ).resolves.toBeDefined();
+  });
+}

packages/now-mdx-deck/.npmignore

@@ -0,0 +1 @@
+/test

packages/now-mdx-deck/index.js

@@ -14,18 +14,24 @@ exports.build = async ({ files, entrypoint, workPath }) => {
   console.log('downloading user files...');
   const downloadedFiles = await download(files, workPath);
   console.log('writing package.json...');
-  const packageJson = { dependencies: { 'mdx-deck': '1.7.7' } };
+  const packageJson = { dependencies: { 'mdx-deck': '1.7.15' } };
   const packageJsonPath = path.join(workPath, 'package.json');
   await writeFile(packageJsonPath, JSON.stringify(packageJson));
   console.log('running npm install...');
   process.env.PUPPETEER_SKIP_CHROMIUM_DOWNLOAD = '1'; // TODO opts argument for runNpmInstall
-  await runNpmInstall(path.dirname(packageJsonPath), ['--prod', '--prefer-offline']);
+  await runNpmInstall(path.dirname(packageJsonPath), [
+    '--prod',
+    '--prefer-offline',
+  ]);
   console.log('building...');
   const outDir = await getWritableDirectory();
   const entrypointFsPath = downloadedFiles[entrypoint].fsPath;
   const mountpoint = path.dirname(entrypoint);
 
-  const build = require(path.join(workPath, 'node_modules/mdx-deck/lib/build.js'));
+  const build = require(path.join(
+    workPath,
+    'node_modules/mdx-deck/lib/build.js',
+  ));
 
   await build({
     html: true,
@@ -41,15 +47,15 @@ exports.build = async ({ files, entrypoint, workPath }) => {
 
 exports.prepareCache = async ({ cachePath }) => {
   console.log('writing package.json...');
-  const packageJson = { dependencies: { 'mdx-deck': '1.7.7' } };
+  const packageJson = { dependencies: { 'mdx-deck': '1.7.15' } };
   const packageJsonPath = path.join(cachePath, 'package.json');
   await writeFile(packageJsonPath, JSON.stringify(packageJson));
   console.log('running npm install...');
   await runNpmInstall(path.dirname(packageJsonPath), ['--prod']);
 
   return {
-    ...await glob('node_modules/**', cachePath),
+    ...(await glob('node_modules/**', cachePath)),
-    ...await glob('package-lock.json', cachePath),
+    ...(await glob('package-lock.json', cachePath)),
-    ...await glob('yarn.lock', cachePath),
+    ...(await glob('yarn.lock', cachePath)),
   };
 };

packages/now-mdx-deck/package.json

@@ -1,7 +1,10 @@
 {
   "name": "@now/mdx-deck",
-  "version": "0.4.15-canary.0",
+  "version": "0.4.17-canary.2",
   "peerDependencies": {
     "@now/build-utils": ">=0.0.1"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }

packages/now-mdx-deck/test/fixtures/01-cowsay/index.mdx

@@ -0,0 +1,5 @@
+# Testing Markdown
+---
+cow:RANDOMNESS_PLACEHOLDER
+---
+[Wow a link!](https://zeit.co)

packages/now-mdx-deck/test/fixtures/01-cowsay/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.mdx", "use": "@now/mdx-deck" },
+    { "src": "subdirectory/index.mdx", "use": "@now/mdx-deck" }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "cow:RANDOMNESS_PLACEHOLDER" },
+    { "path": "/subdirectory/", "mustContain": "yoda:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-mdx-deck/test/fixtures/01-cowsay/subdirectory/index.mdx

@@ -0,0 +1,5 @@
+# Testing Markdown
+---
+yoda:RANDOMNESS_PLACEHOLDER
+---
+[Wow a link!](https://zeit.co)

packages/now-mdx-deck/test/test.js

@@ -0,0 +1,29 @@
+/* global beforeAll, expect, it, jest */
+const fs = require('fs');
+const path = require('path');
+
+const {
+  packAndDeploy,
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(2 * 60 * 1000);
+let builderUrl;
+
+beforeAll(async () => {
+  const builderPath = path.resolve(__dirname, '..');
+  builderUrl = await packAndDeploy(builderPath);
+  console.log('builderUrl', builderUrl);
+});
+
+const fixturesPath = path.resolve(__dirname, 'fixtures');
+
+// eslint-disable-next-line no-restricted-syntax
+for (const fixture of fs.readdirSync(fixturesPath)) {
+  // eslint-disable-next-line no-loop-func
+  it(`should build ${fixture}`, async () => {
+    await expect(
+      testDeployment({ builderUrl }, path.join(fixturesPath, fixture)),
+    ).resolves.toBeDefined();
+  });
+}

packages/now-next/index.js

@@ -4,129 +4,107 @@ const FileFsRef = require('@now/build-utils/file-fs-ref.js');
 const FileBlob = require('@now/build-utils/file-blob');
 const path = require('path');
 const { readFile, writeFile, unlink } = require('fs.promised');
-const rename = require('@now/build-utils/fs/rename.js');
 const {
   runNpmInstall,
   runPackageJsonScript,
 } = require('@now/build-utils/fs/run-user-scripts.js');
 const glob = require('@now/build-utils/fs/glob.js');
+const {
+  excludeFiles,
+  validateEntrypoint,
+  includeOnlyEntryDirectory,
+  moveEntryDirectoryToRoot,
+  excludeLockFiles,
+  normalizePackageJson,
+  excludeStaticDirectory,
+  onlyStaticDirectory,
+} = require('./utils');
 
-// Exclude certain files from the files object
+/** @typedef { import('@now/build-utils/file-ref').Files } Files */
-function excludeFiles(files, matchFn) {
+/** @typedef { import('@now/build-utils/fs/download').DownloadedFiles } DownloadedFiles */
-  return Object.keys(files).reduce((newFiles, fileName) => {
+
-    if (matchFn(fileName)) {
+/**
-      return newFiles;
+ * @typedef {Object} BuildParamsType
-    }
+ * @property {Files} files - Files object
-    return {
+ * @property {string} entrypoint - Entrypoint specified for the builder
-      ...newFiles,
+ * @property {string} workPath - Working directory for this build
-      [fileName]: files[fileName],
+ */
-    };
+
-  }, {});
+/**
+ * Read package.json from files
+ * @param {DownloadedFiles} files
+ */
+async function readPackageJson(files) {
+  if (!files['package.json']) {
+    return {};
+  }
+
+  const packageJsonPath = files['package.json'].fsPath;
+  return JSON.parse(await readFile(packageJsonPath, 'utf8'));
 }
 
-function shouldExcludeFile(entryDirectory) {
+/**
-  return (file) => {
+ * Write package.json
-    // If the file is not in the entry directory
+ * @param {string} workPath
-    if (entryDirectory !== '.' && !file.startsWith(entryDirectory)) {
+ * @param {Object} packageJson
-      return true;
+ */
-    }
+async function writePackageJson(workPath, packageJson) {
-
-    // Exclude static directory
-    if (file.startsWith(path.join(entryDirectory, 'static'))) {
-      return true;
-    }
-
-    if (file === 'package-lock.json') {
-      return true;
-    }
-
-    if (file === 'yarn.lock') {
-      return true;
-    }
-
-    return false;
-  };
-}
-
-exports.build = async ({ files, workPath, entrypoint }) => {
-  if (
-    !/package\.json$/.exec(entrypoint)
-    && !/next\.config\.js$/.exec(entrypoint)
-  ) {
-    throw new Error(
-      'Specified "src" for "@now/next" has to be "package.json" or "next.config.js"',
-    );
-  }
-
-  console.log('downloading user files...');
-  const entryDirectory = path.dirname(entrypoint);
-  const filesToDownload = excludeFiles(
-    files,
-    shouldExcludeFile(entryDirectory),
-  );
-  const entrypointHandledFilesToDownload = rename(filesToDownload, (file) => {
-    if (entryDirectory !== '.') {
-      return file.replace(new RegExp(`^${entryDirectory}/`), '');
-    }
-    return file;
-  });
-  let downloadedFiles = await download(
-    entrypointHandledFilesToDownload,
-    workPath,
-  );
-
-  let packageJson = {};
-  if (downloadedFiles['package.json']) {
-    console.log('found package.json, overwriting');
-    const packageJsonPath = downloadedFiles['package.json'].fsPath;
-    packageJson = JSON.parse(await readFile(packageJsonPath, 'utf8'));
-  }
-
-  packageJson = {
-    ...packageJson,
-    dependencies: {
-      ...packageJson.dependencies,
-      'next-server': 'canary',
-    },
-    devDependencies: {
-      ...packageJson.devDependencies,
-      next: 'canary',
-    },
-    scripts: {
-      ...packageJson.scripts,
-      'now-build': 'next build',
-    },
-  };
-
-  if (!packageJson.dependencies.react) {
-    console.log(
-      '"react" not found in dependencies, adding to "package.json" "dependencies"',
-    );
-    packageJson.dependencies.react = 'latest';
-  }
-  if (!packageJson.dependencies['react-dom']) {
-    console.log(
-      '"react-dom" not found in dependencies, adding to "package.json" "dependencies"',
-    );
-    packageJson.dependencies['react-dom'] = 'latest';
-  }
-
-  // in case the user has `next` on their `dependencies`, we remove it
-  delete packageJson.dependencies.next;
-
   await writeFile(
     path.join(workPath, 'package.json'),
     JSON.stringify(packageJson, null, 2),
   );
+}
+
+/**
+ * Write .npmrc with npm auth token
+ * @param {string} workPath
+ * @param {string} token
+ */
+async function writeNpmRc(workPath, token) {
+  await writeFile(
+    path.join(workPath, '.npmrc'),
+    `//registry.npmjs.org/:_authToken=${token}`,
+  );
+}
+
+exports.config = {
+  maxLambdaSize: '5mb',
+};
+
+/**
+ * @param {BuildParamsType} buildParams
+ * @returns {Promise<Files>}
+ */
+exports.build = async ({ files, workPath, entrypoint }) => {
+  validateEntrypoint(entrypoint);
+
+  console.log('downloading user files...');
+  const entryDirectory = path.dirname(entrypoint);
+  const filesOnlyEntryDirectory = includeOnlyEntryDirectory(
+    files,
+    entryDirectory,
+  );
+  const filesWithEntryDirectoryRoot = moveEntryDirectoryToRoot(
+    filesOnlyEntryDirectory,
+    entryDirectory,
+  );
+  const filesWithoutLockfiles = excludeLockFiles(filesWithEntryDirectoryRoot);
+  const filesWithoutStaticDirectory = excludeStaticDirectory(
+    filesWithoutLockfiles,
+  );
+  const downloadedFiles = await download(filesWithoutStaticDirectory, workPath);
+
+  console.log('normalizing package.json');
+  const packageJson = normalizePackageJson(
+    await readPackageJson(downloadedFiles),
+  );
+  console.log('normalized package.json result: ', packageJson);
+  await writePackageJson(workPath, packageJson);
 
   if (process.env.NPM_AUTH_TOKEN) {
     console.log('found NPM_AUTH_TOKEN in environment, creating .npmrc');
-    await writeFile(
+    await writeNpmRc(workPath, process.env.NPM_AUTH_TOKEN);
-      path.join(workPath, '.npmrc'),
-      `//registry.npmjs.org/:_authToken=${process.env.NPM_AUTH_TOKEN}`,
-    );
   }
-  downloadedFiles = await glob('**', workPath);
 
   console.log('running npm install...');
   await runNpmInstall(workPath, ['--prefer-offline']);
@@ -137,7 +115,8 @@ exports.build = async ({ files, workPath, entrypoint }) => {
   if (process.env.NPM_AUTH_TOKEN) {
     await unlink(path.join(workPath, '.npmrc'));
   }
-  downloadedFiles = await glob('**', workPath);
+
+  const filesAfterBuild = await glob('**', workPath);
 
   console.log('preparing lambda files...');
   let buildId;
@@ -164,8 +143,8 @@ exports.build = async ({ files, workPath, entrypoint }) => {
     ...dotNextServerRootFiles,
     ...launcherFiles,
   };
-  if (downloadedFiles['next.config.js']) {
+  if (filesAfterBuild['next.config.js']) {
-    nextFiles['next.config.js'] = downloadedFiles['next.config.js'];
+    nextFiles['next.config.js'] = filesAfterBuild['next.config.js'];
   }
   const pages = await glob(
     '**/*.js',
@@ -189,20 +168,21 @@ exports.build = async ({ files, workPath, entrypoint }) => {
       );
 
       const pageFiles = {
-        [`.next/server/static/${buildId}/pages/_document.js`]: downloadedFiles[
+        [`.next/server/static/${buildId}/pages/_document.js`]: filesAfterBuild[
           `.next/server/static/${buildId}/pages/_document.js`
         ],
-        [`.next/server/static/${buildId}/pages/_app.js`]: downloadedFiles[
+        [`.next/server/static/${buildId}/pages/_app.js`]: filesAfterBuild[
           `.next/server/static/${buildId}/pages/_app.js`
         ],
-        [`.next/server/static/${buildId}/pages/_error.js`]: downloadedFiles[
+        [`.next/server/static/${buildId}/pages/_error.js`]: filesAfterBuild[
           `.next/server/static/${buildId}/pages/_error.js`
         ],
-        [`.next/server/static/${buildId}/pages/${page}`]: downloadedFiles[
+        [`.next/server/static/${buildId}/pages/${page}`]: filesAfterBuild[
           `.next/server/static/${buildId}/pages/${page}`
         ],
       };
 
+      console.log(`Creating lambda for page: "${page}"...`);
       lambdas[path.join(entryDirectory, pathname)] = await createLambda({
         files: {
           ...nextFiles,
@@ -212,6 +192,7 @@ exports.build = async ({ files, workPath, entrypoint }) => {
         handler: 'now__launcher.launcher',
         runtime: 'nodejs8.10',
       });
+      console.log(`Created lambda for page: "${page}"`);
     }),
   );
 
@@ -227,12 +208,36 @@ exports.build = async ({ files, workPath, entrypoint }) => {
     {},
   );
 
-  return { ...lambdas, ...staticFiles };
+  const nextStaticDirectory = onlyStaticDirectory(filesWithoutLockfiles);
+  const staticDirectoryFiles = Object.keys(nextStaticDirectory).reduce(
+    (mappedFiles, file) => ({
+      ...mappedFiles,
+      [path.join(entryDirectory, file)]: nextStaticDirectory[file],
+    }),
+    {},
+  );
+
+  return { ...lambdas, ...staticFiles, ...staticDirectoryFiles };
 };
 
-exports.prepareCache = async ({ files, cachePath, workPath }) => {
+exports.prepareCache = async ({
+  files, entrypoint, cachePath, workPath,
+}) => {
   console.log('downloading user files...');
-  await download(files, cachePath);
+  const entryDirectory = path.dirname(entrypoint);
+  const filesOnlyEntryDirectory = includeOnlyEntryDirectory(
+    files,
+    entryDirectory,
+  );
+  const filesWithEntryDirectoryRoot = moveEntryDirectoryToRoot(
+    filesOnlyEntryDirectory,
+    entryDirectory,
+  );
+  const filesWithoutLockfiles = excludeLockFiles(filesWithEntryDirectoryRoot);
+  const filesWithoutStaticDirectory = excludeStaticDirectory(
+    filesWithoutLockfiles,
+  );
+  await download(filesWithoutStaticDirectory, workPath);
   await download(await glob('.next/**', workPath), cachePath);
   await download(await glob('node_modules/**', workPath), cachePath);
 

packages/now-next/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/next",
-  "version": "0.0.78-canary.1",
+  "version": "0.0.81-canary.1",
   "dependencies": {
     "@now/node-bridge": "0.1.4",
     "execa": "^1.0.0",

packages/now-next/utils.js

@@ -0,0 +1,181 @@
+const rename = require('@now/build-utils/fs/rename.js');
+
+/** @typedef { import('@now/build-utils/file-ref') } FileRef */
+/** @typedef { import('@now/build-utils/file-fs-ref') } FileFsRef */
+/** @typedef {{[filePath: string]: FileRef|FileFsRef}} Files */
+
+/**
+ * Validate if the entrypoint is allowed to be used
+ * @param {string} entrypoint
+ * @throws {Error}
+ */
+function validateEntrypoint(entrypoint) {
+  if (
+    !/package\.json$/.exec(entrypoint)
+    && !/next\.config\.js$/.exec(entrypoint)
+  ) {
+    throw new Error(
+      'Specified "src" for "@now/next" has to be "package.json" or "next.config.js"',
+    );
+  }
+}
+
+/**
+ * This callback type is called `requestCallback` and is displayed as a global symbol.
+ *
+ * @callback matcher
+ * @param {string} filePath
+ * @returns {boolean}
+ */
+
+/**
+ * Exclude certain files from the files object
+ * @param {Files} files
+ * @param {matcher} matcher
+ * @returns {Files}
+ */
+function excludeFiles(files, matcher) {
+  return Object.keys(files).reduce((newFiles, filePath) => {
+    if (matcher(filePath)) {
+      return newFiles;
+    }
+    return {
+      ...newFiles,
+      [filePath]: files[filePath],
+    };
+  }, {});
+}
+
+/**
+ * Creates a new Files object holding only the entrypoint files
+ * @param {Files} files
+ * @param {string} entryDirectory
+ * @returns {Files}
+ */
+function includeOnlyEntryDirectory(files, entryDirectory) {
+  if (entryDirectory === '.') {
+    return files;
+  }
+
+  function matcher(filePath) {
+    return !filePath.startsWith(entryDirectory);
+  }
+
+  return excludeFiles(files, matcher);
+}
+
+/**
+ * Moves all files under the entry directory to the root directory
+ * @param {Files} files
+ * @param {string} entryDirectory
+ * @returns {Files}
+ */
+function moveEntryDirectoryToRoot(files, entryDirectory) {
+  if (entryDirectory === '.') {
+    return files;
+  }
+
+  function delegate(filePath) {
+    return filePath.replace(new RegExp(`^${entryDirectory}/`), '');
+  }
+
+  return rename(files, delegate);
+}
+
+/**
+ * Exclude package manager lockfiles from files
+ * @param {Files} files
+ * @returns {Files}
+ */
+function excludeLockFiles(files) {
+  const newFiles = files;
+  if (newFiles['package-lock.json']) {
+    delete newFiles['package-lock.json'];
+  }
+  if (newFiles['yarn.lock']) {
+    delete newFiles['yarn.lock'];
+  }
+  return files;
+}
+
+/**
+ * Exclude the static directory from files
+ * @param {Files} files
+ * @returns {Files}
+ */
+function excludeStaticDirectory(files) {
+  function matcher(filePath) {
+    return filePath.startsWith('static');
+  }
+
+  return excludeFiles(files, matcher);
+}
+
+/**
+ * Exclude the static directory from files
+ * @param {Files} files
+ * @returns {Files}
+ */
+function onlyStaticDirectory(files) {
+  function matcher(filePath) {
+    return !filePath.startsWith('static');
+  }
+
+  return excludeFiles(files, matcher);
+}
+
+/**
+ * Enforce specific package.json configuration for smallest possible lambda
+ * @param {{dependencies?: any, devDependencies?: any, scripts?: any}} defaultPackageJson
+ */
+function normalizePackageJson(defaultPackageJson = {}) {
+  const dependencies = {};
+  const devDependencies = {
+    ...defaultPackageJson.dependencies,
+    ...defaultPackageJson.devDependencies,
+  };
+
+  if (devDependencies.react) {
+    dependencies.react = devDependencies.react;
+    delete devDependencies.react;
+  }
+
+  if (devDependencies['react-dom']) {
+    dependencies['react-dom'] = devDependencies['react-dom'];
+    delete devDependencies['react-dom'];
+  }
+
+  return {
+    ...defaultPackageJson,
+    dependencies: {
+      // react and react-dom can be overwritten
+      react: 'latest',
+      'react-dom': 'latest',
+      ...dependencies, // override react if user provided it
+      // next-server is forced to canary
+      'next-server': 'canary',
+    },
+    devDependencies: {
+      ...devDependencies,
+      // next is forced to canary
+      next: 'canary',
+      // next-server is a dependency here
+      'next-server': undefined,
+    },
+    scripts: {
+      ...defaultPackageJson.scripts,
+      'now-build': 'next build --lambdas',
+    },
+  };
+}
+
+module.exports = {
+  excludeFiles,
+  validateEntrypoint,
+  includeOnlyEntryDirectory,
+  moveEntryDirectoryToRoot,
+  excludeLockFiles,
+  normalizePackageJson,
+  excludeStaticDirectory,
+  onlyStaticDirectory,
+};

packages/now-node-bridge/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/node-bridge",
-  "version": "0.1.8-canary.1",
+  "version": "0.1.9",
   "peerDependencies": {
     "@now/build-utils": ">=0.0.1"
   }

packages/now-node-server/.npmignore

@@ -0,0 +1 @@
+/test

packages/now-node-server/index.js

@@ -5,31 +5,41 @@ const FileFsRef = require('@now/build-utils/file-fs-ref.js');
 const fs = require('fs-extra');
 const glob = require('@now/build-utils/fs/glob.js');
 const path = require('path');
-const { promisify } = require('util');
+const rename = require('@now/build-utils/fs/rename.js');
 const {
   runNpmInstall,
   runPackageJsonScript,
 } = require('@now/build-utils/fs/run-user-scripts.js');
 
-const fsp = {
+/** @typedef { import('@now/build-utils/file-ref') } FileRef */
-  readFile: promisify(fs.readFile),
+/** @typedef {{[filePath: string]: FileRef}} Files */
-};
 
-async function commonForTwo({
+/**
-  files, entrypoint, workPath, cachePath,
+ * @typedef {Object} BuildParamsType
-}) {
+ * @property {Files} files - Files object
-  const xPath = workPath || cachePath;
+ * @property {string} entrypoint - Entrypoint specified for the builder
-  const preferOfflineArgument = workPath ? ['--prefer-offline'] : [];
+ * @property {Object} config - User-passed config from now.json
+ * @property {string} workPath - Working directory for this build
+ */
 
-  const xUserPath = path.join(xPath, 'user');
+/**
-  const xNccPath = path.join(xPath, 'ncc');
+ * @param {BuildParamsType} buildParams
+ * @param {Object} [options]
+ * @param {string[]} [options.npmArguments]
+ */
+async function downloadInstallAndBundle(
+  { files, entrypoint, workPath },
+  { npmArguments = [] } = {},
+) {
+  const userPath = path.join(workPath, 'user');
+  const nccPath = path.join(workPath, 'ncc');
 
   console.log('downloading user files...');
-  const filesOnDisk = await download(files, xUserPath);
+  const downloadedFiles = await download(files, userPath);
 
   console.log('running npm install for user...');
-  const entrypointFsDirname = path.join(xUserPath, path.dirname(entrypoint));
+  const entrypointFsDirname = path.join(userPath, path.dirname(entrypoint));
-  await runNpmInstall(entrypointFsDirname, preferOfflineArgument);
+  await runNpmInstall(entrypointFsDirname, npmArguments);
 
   console.log('writing ncc package.json...');
   await download(
@@ -37,48 +47,77 @@ async function commonForTwo({
       'package.json': new FileBlob({
         data: JSON.stringify({
           dependencies: {
-            '@zeit/ncc': '0.1.3-webpack',
+            '@zeit/ncc': '0.3.0',
           },
         }),
       }),
     },
-    xNccPath,
+    nccPath,
   );
 
   console.log('running npm install for ncc...');
-  await runNpmInstall(xNccPath, preferOfflineArgument);
+  await runNpmInstall(nccPath, npmArguments);
-  return [filesOnDisk, xNccPath, entrypointFsDirname];
+  return [downloadedFiles, userPath, nccPath, entrypointFsDirname];
 }
 
-async function compile(workNccPath, input) {
+async function compile(workNccPath, downloadedFiles, entrypoint) {
+  const input = downloadedFiles[entrypoint].fsPath;
   const ncc = require(path.join(workNccPath, 'node_modules/@zeit/ncc'));
-  return ncc(input);
+  const { code, assets } = await ncc(input);
+
+  const preparedFiles = {};
+  const blob = new FileBlob({ data: code });
+  // move all user code to 'user' subdirectory
+  preparedFiles[path.join('user', entrypoint)] = blob;
+  // eslint-disable-next-line no-restricted-syntax
+  for (const assetName of Object.keys(assets)) {
+    const blob2 = new FileBlob({ data: assets[assetName] });
+    preparedFiles[
+      path.join('user', path.dirname(entrypoint), assetName)
+    ] = blob2;
+  }
+
+  return preparedFiles;
 }
 
 exports.config = {
   maxLambdaSize: '15mb',
 };
 
-exports.build = async ({ files, entrypoint, workPath }) => {
+/**
-  const [filesOnDisk, workNccPath, entrypointFsDirname] = await commonForTwo({
+ * @param {BuildParamsType} buildParams
-    files,
+ * @returns {Promise<Files>}
-    entrypoint,
+ */
-    workPath,
+exports.build = async ({
-  });
+  files, entrypoint, config, workPath,
+}) => {
+  const [
+    downloadedFiles,
+    workUserPath,
+    workNccPath,
+    entrypointFsDirname,
+  ] = await downloadInstallAndBundle(
+    { files, entrypoint, workPath },
+    { npmArguments: ['--prefer-offline'] },
+  );
 
   console.log('running user script...');
   await runPackageJsonScript(entrypointFsDirname, 'now-build');
 
-  console.log('compiling entrypoint with ncc...');
-  const data = await compile(workNccPath, filesOnDisk[entrypoint].fsPath);
-  const blob = new FileBlob({ data });
-
   console.log('preparing lambda files...');
-  // move all user code to 'user' subdirectory
+  let preparedFiles;
-  const compiledFiles = { [path.join('user', entrypoint)]: blob };
-  const launcherPath = path.join(__dirname, 'launcher.js');
-  let launcherData = await fsp.readFile(launcherPath, 'utf8');
 
+  if (config && config.bundle === false) {
+    // move all user code to 'user' subdirectory
+    preparedFiles = await glob('**', workUserPath);
+    preparedFiles = rename(preparedFiles, name => path.join('user', name));
+  } else {
+    console.log('compiling entrypoint with ncc...');
+    preparedFiles = await compile(workNccPath, downloadedFiles, entrypoint);
+  }
+
+  const launcherPath = path.join(__dirname, 'launcher.js');
+  let launcherData = await fs.readFile(launcherPath, 'utf8');
   launcherData = launcherData.replace(
     '// PLACEHOLDER',
     [
@@ -93,7 +132,7 @@ exports.build = async ({ files, entrypoint, workPath }) => {
   };
 
   const lambda = await createLambda({
-    files: { ...compiledFiles, ...launcherFiles },
+    files: { ...preparedFiles, ...launcherFiles },
     handler: 'launcher.launcher',
     runtime: 'nodejs8.10',
   });
@@ -105,7 +144,7 @@ exports.prepareCache = async ({
   files, entrypoint, workPath, cachePath,
 }) => {
   await fs.remove(workPath);
-  await commonForTwo({ files, entrypoint, cachePath });
+  await downloadInstallAndBundle({ files, entrypoint, workPath: cachePath });
 
   return {
     ...(await glob('user/node_modules/**', cachePath)),

packages/now-node-server/package.json

@@ -1,11 +1,14 @@
 {
   "name": "@now/node-server",
-  "version": "0.4.23-canary.3",
+  "version": "0.4.25-canary.2",
   "dependencies": {
-    "@now/node-bridge": "^0.1.8-canary.1",
+    "@now/node-bridge": "^0.1.9",
     "fs-extra": "7.0.1"
   },
   "peerDependencies": {
     "@now/build-utils": ">=0.0.1"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }

packages/now-node-server/test/fixtures/01-cowsay/index.js

@@ -0,0 +1,11 @@
+const cowsay = require('cowsay/build/cowsay.umd.js').say;
+const http = require('http');
+
+// test that process.env is not replaced by webpack
+process.env.NODE_ENV = 'development';
+
+const server = http.createServer((req, resp) => {
+  resp.end(cowsay({ text: 'cow:RANDOMNESS_PLACEHOLDER' }));
+});
+
+server.listen();

packages/now-node-server/test/fixtures/01-cowsay/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.js", "use": "@now/node-server" },
+    { "src": "subdirectory/index.js", "use": "@now/node-server" }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "cow:RANDOMNESS_PLACEHOLDER" },
+    { "path": "/subdirectory/", "mustContain": "yoda:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-node-server/test/fixtures/01-cowsay/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "cowsay": "^1.3.1"
+  }
+}

packages/now-node-server/test/fixtures/01-cowsay/subdirectory/index.js

@@ -0,0 +1,11 @@
+const yodasay = require('yodasay/build/yodasay.umd.js').say;
+const http = require('http');
+
+// test that process.env is not replaced by webpack
+process.env.NODE_ENV = 'development';
+
+const server = http.createServer((req, resp) => {
+  resp.end(yodasay({ text: 'yoda:RANDOMNESS_PLACEHOLDER' }));
+});
+
+server.listen();

packages/now-node-server/test/fixtures/01-cowsay/subdirectory/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "yodasay": "^1.1.6"
+  }
+}

packages/now-node-server/test/fixtures/03-env-vars/build-env/index.js

@@ -0,0 +1,10 @@
+const assert = require('assert');
+const http = require('http');
+
+const server = http.createServer((req, resp) => {
+  assert(!process.env.RANDOMNESS_BUILD_ENV_VAR);
+  assert(process.env.RANDOMNESS_ENV_VAR);
+  resp.end('BUILD_TIME_PLACEHOLDER:build-env');
+});
+
+server.listen();

packages/now-node-server/test/fixtures/03-env-vars/build-env/now-build.js

@@ -0,0 +1,12 @@
+const assert = require('assert');
+const fs = require('fs');
+
+assert(process.env.RANDOMNESS_BUILD_ENV_VAR);
+assert(!process.env.RANDOMNESS_ENV_VAR);
+
+fs.writeFileSync(
+  'index.js',
+  fs
+    .readFileSync('index.js', 'utf8')
+    .replace('BUILD_TIME_PLACEHOLDER', process.env.RANDOMNESS_BUILD_ENV_VAR),
+);

packages/now-node-server/test/fixtures/03-env-vars/build-env/package.json

@@ -0,0 +1,5 @@
+{
+  "scripts": {
+    "now-build": "node now-build.js"
+  }
+}

packages/now-node-server/test/fixtures/03-env-vars/env/index.js

@@ -0,0 +1,10 @@
+const assert = require('assert');
+const http = require('http');
+
+const server = http.createServer((req, resp) => {
+  assert(!process.env.RANDOMNESS_BUILD_ENV_VAR);
+  assert(process.env.RANDOMNESS_ENV_VAR);
+  resp.end(`${process.env.RANDOMNESS_ENV_VAR}:env`);
+});
+
+server.listen();

packages/now-node-server/test/fixtures/03-env-vars/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "build-env/index.js", "use": "@now/node-server" },
+    { "src": "env/index.js", "use": "@now/node-server" }
+  ],
+  "probes": [
+    { "path": "/build-env", "mustContain": "RANDOMNESS_PLACEHOLDER:build-env" },
+    { "path": "/env", "mustContain": "RANDOMNESS_PLACEHOLDER:env" }
+  ]
+}

packages/now-node-server/test/fixtures/08-assets/index.js

@@ -0,0 +1,15 @@
+const fs = require('fs');
+const http = require('http');
+const path = require('path');
+
+const server = http.createServer((req, resp) => {
+  const asset1 = fs.readFileSync(
+    path.join(__dirname, 'subdirectory1/asset.txt'),
+  );
+  const asset2 = fs.readFileSync(
+    path.join(__dirname, 'subdirectory2/asset.txt'),
+  );
+  resp.end(`${asset1},${asset2}`);
+});
+
+server.listen();

packages/now-node-server/test/fixtures/08-assets/now.json

@@ -0,0 +1,9 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.js", "use": "@now/node-server" }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "asset1:RANDOMNESS_PLACEHOLDER,asset2:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-node-server/test/fixtures/08-assets/subdirectory1/asset.txt

@@ -0,0 +1 @@
+asset1:RANDOMNESS_PLACEHOLDER

packages/now-node-server/test/fixtures/08-assets/subdirectory2/asset.txt

@@ -0,0 +1 @@
+asset2:RANDOMNESS_PLACEHOLDER

packages/now-node-server/test/fixtures/09-no-bundle/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "with-bundle/index.js", "use": "@now/node-server" },
+    { "src": "without-bundle/index.js", "use": "@now/node-server", "config": { "bundle": false } }
+  ],
+  "probes": [
+    { "path": "/with-bundle", "mustContain": "RANDOMNESS_PLACEHOLDER" },
+    { "path": "/without-bundle", "mustContain": "RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-node-server/test/fixtures/09-no-bundle/with-bundle/index.js

@@ -0,0 +1,8 @@
+const http = require('http');
+const isBundled = require('./is-bundled.js');
+
+const server = http.createServer((req, resp) => {
+  resp.end(isBundled() ? 'RANDOMNESS_PLACEHOLDER' : '');
+});
+
+server.listen();

packages/now-node-server/test/fixtures/09-no-bundle/with-bundle/is-bundled.js

@@ -0,0 +1,3 @@
+const path = require('path');
+
+module.exports = () => path.basename(__filename) === 'index.js';

packages/now-node-server/test/fixtures/09-no-bundle/without-bundle/index.js

@@ -0,0 +1,8 @@
+const http = require('http');
+const isBundled = require('./is-bundled.js');
+
+const server = http.createServer((req, resp) => {
+  resp.end(isBundled() ? '' : 'RANDOMNESS_PLACEHOLDER');
+});
+
+server.listen();

packages/now-node-server/test/fixtures/09-no-bundle/without-bundle/is-bundled.js

@@ -0,0 +1,3 @@
+const path = require('path');
+
+module.exports = () => path.basename(__filename) === 'index.js';

packages/now-node-server/test/fixtures/10-others/apollo/index.js

@@ -0,0 +1,24 @@
+const express = require('express');
+const { ApolloServer, gql } = require('apollo-server-express');
+
+const typeDefs = gql`
+  type Query {
+    hello: String
+  }
+`;
+
+const resolvers = {
+  Query: {
+    hello: () => 'apollo:RANDOMNESS_PLACEHOLDER',
+  },
+};
+
+const server = new ApolloServer({ typeDefs, resolvers, introspection: true });
+
+const app = express();
+server.applyMiddleware({ app });
+app.get('/', (req, resp) => {
+  resp.redirect('/graphql');
+});
+
+app.listen({ port: 4000 });

packages/now-node-server/test/fixtures/10-others/apollo/package.json

@@ -0,0 +1,7 @@
+{
+  "dependencies": {
+    "apollo-server-express": "^2.2.2",
+    "express": "^4.16.4",
+    "graphql": "^14.0.2"
+  }
+}

packages/now-node-server/test/fixtures/10-others/now.json

@@ -0,0 +1,12 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "apollo/index.js", "use": "@now/node-server" }
+  ],
+  "routes": [
+    { "src": "/.*", "dest": "apollo/index.js" }
+  ],
+  "probes": [
+    { "path": "/graphql", "method": "POST", "body": { "query": "{hello}" }, "mustContain": "apollo:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-node-server/test/test.js

@@ -0,0 +1,29 @@
+/* global beforeAll, expect, it, jest */
+const fs = require('fs');
+const path = require('path');
+
+const {
+  packAndDeploy,
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(2 * 60 * 1000);
+let builderUrl;
+
+beforeAll(async () => {
+  const builderPath = path.resolve(__dirname, '..');
+  builderUrl = await packAndDeploy(builderPath);
+  console.log('builderUrl', builderUrl);
+});
+
+const fixturesPath = path.resolve(__dirname, 'fixtures');
+
+// eslint-disable-next-line no-restricted-syntax
+for (const fixture of fs.readdirSync(fixturesPath)) {
+  // eslint-disable-next-line no-loop-func
+  it(`should build ${fixture}`, async () => {
+    await expect(
+      testDeployment({ builderUrl }, path.join(fixturesPath, fixture)),
+    ).resolves.toBeDefined();
+  });
+}

packages/now-node/.npmignore

@@ -0,0 +1 @@
+/test

packages/now-node/index.js

@@ -5,14 +5,11 @@ const FileFsRef = require('@now/build-utils/file-fs-ref.js');
 const fs = require('fs-extra');
 const glob = require('@now/build-utils/fs/glob.js');
 const path = require('path');
-const { promisify } = require('util');
 const {
   runNpmInstall,
   runPackageJsonScript,
 } = require('@now/build-utils/fs/run-user-scripts.js');
 
-const readFile = promisify(fs.readFile);
-
 /** @typedef { import('@now/build-utils/file-ref') } FileRef */
 /** @typedef {{[filePath: string]: FileRef}} Files */
 
@@ -36,7 +33,7 @@ async function downloadInstallAndBundle(
   const nccPath = path.join(workPath, 'ncc');
 
   console.log('downloading user files...');
-  const filesOnDisk = await download(files, userPath);
+  const downloadedFiles = await download(files, userPath);
 
   console.log('running npm install for user...');
   const entrypointFsDirname = path.join(userPath, path.dirname(entrypoint));
@@ -48,7 +45,7 @@ async function downloadInstallAndBundle(
       'package.json': new FileBlob({
         data: JSON.stringify({
           dependencies: {
-            '@zeit/ncc': '0.1.3-webpack',
+            '@zeit/ncc': '0.3.0',
           },
         }),
       }),
@@ -58,12 +55,27 @@ async function downloadInstallAndBundle(
 
   console.log('running npm install for ncc...');
   await runNpmInstall(nccPath, npmArguments);
-  return [filesOnDisk, nccPath, entrypointFsDirname];
+  return [downloadedFiles, nccPath, entrypointFsDirname];
 }
 
-async function compile(workNccPath, input) {
+async function compile(workNccPath, downloadedFiles, entrypoint) {
+  const input = downloadedFiles[entrypoint].fsPath;
   const ncc = require(path.join(workNccPath, 'node_modules/@zeit/ncc'));
-  return ncc(input);
+  const { code, assets } = await ncc(input);
+
+  const preparedFiles = {};
+  const blob = new FileBlob({ data: code });
+  // move all user code to 'user' subdirectory
+  preparedFiles[path.join('user', entrypoint)] = blob;
+  // eslint-disable-next-line no-restricted-syntax
+  for (const assetName of Object.keys(assets)) {
+    const blob2 = new FileBlob({ data: assets[assetName] });
+    preparedFiles[
+      path.join('user', path.dirname(entrypoint), assetName)
+    ] = blob2;
+  }
+
+  return preparedFiles;
 }
 
 exports.config = {
@@ -76,7 +88,7 @@ exports.config = {
  */
 exports.build = async ({ files, entrypoint, workPath }) => {
   const [
-    filesOnDisk,
+    downloadedFiles,
     workNccPath,
     entrypointFsDirname,
   ] = await downloadInstallAndBundle(
@@ -88,20 +100,16 @@ exports.build = async ({ files, entrypoint, workPath }) => {
   await runPackageJsonScript(entrypointFsDirname, 'now-build');
 
   console.log('compiling entrypoint with ncc...');
-  const data = await compile(workNccPath, filesOnDisk[entrypoint].fsPath);
+  const preparedFiles = await compile(workNccPath, downloadedFiles, entrypoint);
-  const blob = new FileBlob({ data });
-
-  console.log('preparing lambda files...');
-  // move all user code to 'user' subdirectory
-  const compiledFiles = { [path.join('user', entrypoint)]: blob };
   const launcherPath = path.join(__dirname, 'launcher.js');
-  let launcherData = await readFile(launcherPath, 'utf8');
+  let launcherData = await fs.readFile(launcherPath, 'utf8');
 
   launcherData = launcherData.replace(
     '// PLACEHOLDER',
     [
       'process.chdir("./user");',
       `listener = require("./${path.join('user', entrypoint)}");`,
+      'if (listener.default) listener = listener.default;',
     ].join(' '),
   );
 
@@ -111,7 +119,7 @@ exports.build = async ({ files, entrypoint, workPath }) => {
   };
 
   const lambda = await createLambda({
-    files: { ...compiledFiles, ...launcherFiles },
+    files: { ...preparedFiles, ...launcherFiles },
     handler: 'launcher.launcher',
     runtime: 'nodejs8.10',
   });

packages/now-node/package.json

@@ -1,11 +1,14 @@
 {
   "name": "@now/node",
-  "version": "0.4.25-canary.3",
+  "version": "0.4.27-canary.2",
   "dependencies": {
-    "@now/node-bridge": "^0.1.8-canary.1",
+    "@now/node-bridge": "^0.1.9",
     "fs-extra": "7.0.1"
   },
   "peerDependencies": {
     "@now/build-utils": ">=0.0.1"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }

packages/now-node/test/fixtures/01-cowsay/index.js

@@ -0,0 +1,8 @@
+const cowsay = require('cowsay/build/cowsay.umd.js').say;
+
+// test that process.env is not replaced by webpack
+process.env.NODE_ENV = 'development';
+
+module.exports = (req, resp) => {
+  resp.end(cowsay({ text: 'cow:RANDOMNESS_PLACEHOLDER' }));
+};

packages/now-node/test/fixtures/01-cowsay/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.js", "use": "@now/node" },
+    { "src": "subdirectory/index.js", "use": "@now/node" }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "cow:RANDOMNESS_PLACEHOLDER" },
+    { "path": "/subdirectory/", "mustContain": "yoda:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-node/test/fixtures/01-cowsay/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "cowsay": "^1.3.1"
+  }
+}

packages/now-node/test/fixtures/01-cowsay/subdirectory/index.js

@@ -0,0 +1,8 @@
+const yodasay = require('yodasay/build/yodasay.umd.js').say;
+
+// test that process.env is not replaced by webpack
+process.env.NODE_ENV = 'development';
+
+module.exports = (req, resp) => {
+  resp.end(yodasay({ text: 'yoda:RANDOMNESS_PLACEHOLDER' }));
+};

packages/now-node/test/fixtures/01-cowsay/subdirectory/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "yodasay": "^1.1.6"
+  }
+}

packages/now-node/test/fixtures/03-env-vars/build-env/index.js

@@ -0,0 +1,7 @@
+const assert = require('assert');
+
+module.exports = (req, resp) => {
+  assert(!process.env.RANDOMNESS_BUILD_ENV_VAR);
+  assert(process.env.RANDOMNESS_ENV_VAR);
+  resp.end('BUILD_TIME_PLACEHOLDER:build-env');
+};

packages/now-node/test/fixtures/03-env-vars/build-env/now-build.js

@@ -0,0 +1,12 @@
+const assert = require('assert');
+const fs = require('fs');
+
+assert(process.env.RANDOMNESS_BUILD_ENV_VAR);
+assert(!process.env.RANDOMNESS_ENV_VAR);
+
+fs.writeFileSync(
+  'index.js',
+  fs
+    .readFileSync('index.js', 'utf8')
+    .replace('BUILD_TIME_PLACEHOLDER', process.env.RANDOMNESS_BUILD_ENV_VAR),
+);

packages/now-node/test/fixtures/03-env-vars/build-env/package.json

@@ -0,0 +1,5 @@
+{
+  "scripts": {
+    "now-build": "node now-build.js"
+  }
+}

packages/now-node/test/fixtures/03-env-vars/env/index.js

@@ -0,0 +1,7 @@
+const assert = require('assert');
+
+module.exports = (req, resp) => {
+  assert(!process.env.RANDOMNESS_BUILD_ENV_VAR);
+  assert(process.env.RANDOMNESS_ENV_VAR);
+  resp.end(`${process.env.RANDOMNESS_ENV_VAR}:env`);
+};

packages/now-node/test/fixtures/03-env-vars/now.json

@@ -0,0 +1,11 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "build-env/index.js", "use": "@now/node" },
+    { "src": "env/index.js", "use": "@now/node" }
+  ],
+  "probes": [
+    { "path": "/build-env", "mustContain": "RANDOMNESS_PLACEHOLDER:build-env" },
+    { "path": "/env", "mustContain": "RANDOMNESS_PLACEHOLDER:env" }
+  ]
+}

packages/now-node/test/fixtures/08-assets/index.js

@@ -0,0 +1,12 @@
+const fs = require('fs');
+const path = require('path');
+
+module.exports = (req, resp) => {
+  const asset1 = fs.readFileSync(
+    path.join(__dirname, 'subdirectory1/asset.txt'),
+  );
+  const asset2 = fs.readFileSync(
+    path.join(__dirname, 'subdirectory2/asset.txt'),
+  );
+  resp.end(`${asset1},${asset2}`);
+};

packages/now-node/test/fixtures/08-assets/now.json

@@ -0,0 +1,9 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "index.js", "use": "@now/node" }
+  ],
+  "probes": [
+    { "path": "/", "mustContain": "asset1:RANDOMNESS_PLACEHOLDER,asset2:RANDOMNESS_PLACEHOLDER" }
+  ]
+}

packages/now-node/test/fixtures/08-assets/subdirectory1/asset.txt

@@ -0,0 +1 @@
+asset1:RANDOMNESS_PLACEHOLDER

packages/now-node/test/fixtures/08-assets/subdirectory2/asset.txt

@@ -0,0 +1 @@
+asset2:RANDOMNESS_PLACEHOLDER

packages/now-node/test/test.js

@@ -0,0 +1,29 @@
+/* global beforeAll, expect, it, jest */
+const fs = require('fs');
+const path = require('path');
+
+const {
+  packAndDeploy,
+  testDeployment,
+} = require('../../../test/lib/deployment/test-deployment.js');
+
+jest.setTimeout(2 * 60 * 1000);
+let builderUrl;
+
+beforeAll(async () => {
+  const builderPath = path.resolve(__dirname, '..');
+  builderUrl = await packAndDeploy(builderPath);
+  console.log('builderUrl', builderUrl);
+});
+
+const fixturesPath = path.resolve(__dirname, 'fixtures');
+
+// eslint-disable-next-line no-restricted-syntax
+for (const fixture of fs.readdirSync(fixturesPath)) {
+  // eslint-disable-next-line no-loop-func
+  it(`should build ${fixture}`, async () => {
+    await expect(
+      testDeployment({ builderUrl }, path.join(fixturesPath, fixture)),
+    ).resolves.toBeDefined();
+  });
+}

packages/now-optipng/index.js

@@ -6,7 +6,10 @@ exports.analyze = ({ files, entrypoint }) => files[entrypoint].digest;
 
 exports.build = async ({ files, entrypoint }) => {
   const optimizer = new OptiPng(['-o9']);
-  const stream = pipe(files[entrypoint].toStream(), optimizer);
+  const stream = pipe(
+    files[entrypoint].toStream(),
+    optimizer,
+  );
   const result = await FileBlob.fromStream({ stream });
   return { [entrypoint]: result };
 };

packages/now-optipng/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/optipng",
-  "version": "0.4.6-canary.0",
+  "version": "0.4.7",
   "dependencies": {
     "multipipe": "2.0.3",
     "optipng": "1.1.0"