[tests] Create tarballs of all packages in Vercel deployment (#7967)

For the Vercel deployment, run `yarn pack` in each of the packages in the monorepo and place them in the "public/tarballs" directory so that we can have npm-installable URLs of each package for every commit. The `package.json` of each package is also updated to reference the tarball when a package depends on other packages within the monorepo.

Try it out like:

```
$ npm i -g https://vercel-biww73ffq.vercel.sh/tarballs/vercel.tgz

# Notice how the package.json has the monorepo dependencies
# updated to point to the related tarballs from the same deployment:

$ cat /usr/local/lib/node_modules/vercel/package.json | grep biww
    "@vercel/build-utils": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/build-utils.tgz",
    "@vercel/go": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/go.tgz",
    "@vercel/next": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/next.tgz",
    "@vercel/node": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/node.tgz",
    "@vercel/python": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/python.tgz",
    "@vercel/redwood": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/redwood.tgz",
    "@vercel/remix": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/remix.tgz",
    "@vercel/ruby": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/ruby.tgz",
    "@vercel/static-build": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/static-build.tgz",
    "@vercel/client": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/client.tgz",
    "@vercel/frameworks": "https://vercel-biww73ffq.vercel.sh/tarballs/@vercel/frameworks.tgz",

# Also notice that the "version" in `package.json` gets updated to include the commit
# SHA so that we can easily identify which commit a given tarball was generated from:

$ vercel --version
25.1.1-canary.1-727b290
```

.vercelignore

@@ -1,18 +1 @@
-*
-
-# general
-!utils/
-!utils/run.js
-!.yarnrc
-!yarn.lock
-!package.json
-!turbo.json
-
-# api
-!api/
-!api/**
-
-# packages
-!packages/
-!packages/frameworks
-!packages/frameworks/**
+packages/*/test/**

api/_lib/script/build.ts

@@ -1,5 +1,6 @@
 import fs from 'fs/promises';
-import { join } from 'path';
+import { join, dirname } from 'path';
+import execa from 'execa';
 import { getExampleList } from '../examples/example-list';
 import { mapOldToNew } from '../examples/map-old-to-new';
 
@@ -40,7 +41,32 @@ async function main() {
     JSON.stringify([...existingExamples, ...oldExamples])
   );
 
+  const { stdout: sha } = await execa('git', ['rev-parse', '--short', 'HEAD'], {
+    cwd: repoRoot,
+  });
+
+  const tarballsDir = join(pubDir, 'tarballs');
+  const packagesDir = join(repoRoot, 'packages');
+  const packages = await fs.readdir(packagesDir);
+  for (const pkg of packages) {
+    const fullDir = join(packagesDir, pkg);
+    const packageJsonRaw = await fs.readFile(
+      join(fullDir, 'package.json'),
+      'utf-8'
+    );
+    const packageJson = JSON.parse(packageJsonRaw);
+    const tarballName = `${packageJson.name
+      .replace('@', '')
+      .replace('/', '-')}-v${packageJson.version}-${sha.trim()}.tgz`;
+    const destTarballPath = join(tarballsDir, `${packageJson.name}.tgz`);
+    await fs.mkdir(dirname(destTarballPath), { recursive: true });
+    await fs.copyFile(join(fullDir, tarballName), destTarballPath);
+  }
+
   console.log('Completed building static frontend.');
 }
 
-main().catch(console.error);
+main().catch(err => {
+  console.log('error running build:', err);
+  process.exit(1);
+});

package.json

@@ -41,7 +41,7 @@
     "publish-from-github": "./utils/publish.sh",
     "changelog": "node utils/changelog.js",
     "build": "turbo run build",
-    "vercel-build": "yarn build && cd api && node -r ts-eager/register ./_lib/script/build.ts",
+    "vercel-build": "yarn build && yarn run pack && cd api && node -r ts-eager/register ./_lib/script/build.ts",
     "pre-commit": "lint-staged",
     "test": "jest --rootDir=\"test\" --testPathPattern=\"\\.test.js\"",
     "test-unit": "yarn test && turbo run test-unit",
@@ -49,7 +49,8 @@
     "test-integration-once": "turbo run test-integration-once",
     "test-integration-dev": "turbo run test-integration-dev",
     "lint": "eslint . --ext .ts,.js",
-    "prepare": "husky install"
+    "prepare": "husky install",
+    "pack": "cd utils && node -r ts-eager/register ./pack.ts"
   },
   "lint-staged": {
     "./{*,{api,packages,test,utils}/**/*}.{js,ts}": [

packages/cli/src/util/pkg.ts

@@ -1,6 +1,14 @@
-import _pkg from '../../package.json';
+import fs from 'fs';
+import { join } from 'path';
 import { PackageJson } from '@vercel/build-utils';
 
-const pkg: PackageJson & typeof _pkg = _pkg;
+let rootDir = __dirname;
+while (!fs.existsSync(join(rootDir, 'package.json'))) {
+  rootDir = join(rootDir, '..');
+}
 
+const pkgPath = join(rootDir, 'package.json');
+const pkg: PackageJson & typeof import('../../package.json') = JSON.parse(
+  fs.readFileSync(pkgPath, 'utf8')
+);
 export default pkg;

utils/pack.ts

@@ -0,0 +1,52 @@
+import execa from 'execa';
+import path from 'path';
+import fs from 'fs-extra';
+import { TurboDryRun } from './types';
+
+const rootDir = path.join(__dirname, '..');
+
+async function main() {
+  const { stdout: sha } = await execa('git', ['rev-parse', '--short', 'HEAD'], {
+    cwd: rootDir,
+  });
+  const { stdout: turboStdout } = await execa(
+    'turbo',
+    ['run', 'build', '--dry=json'],
+    {
+      cwd: rootDir,
+    }
+  );
+  const turboJson: TurboDryRun = JSON.parse(turboStdout);
+  for (const task of turboJson.tasks) {
+    const dir = path.join(rootDir, task.directory);
+    const packageJsonPath = path.join(dir, 'package.json');
+    const originalPackageObj = await fs.readJson(packageJsonPath);
+    const packageObj = await fs.readJson(packageJsonPath);
+    packageObj.version += `-${sha.trim()}`;
+
+    if (task.dependencies.length > 0) {
+      for (const dependency of task.dependencies) {
+        const name = dependency.split('#')[0];
+        const tarballUrl = `https://${process.env.VERCEL_URL}/tarballs/${name}.tgz`;
+        if (packageObj.dependencies && name in packageObj.dependencies) {
+          packageObj.dependencies[name] = tarballUrl;
+        }
+        if (packageObj.devDependencies && name in packageObj.devDependencies) {
+          packageObj.devDependencies[name] = tarballUrl;
+        }
+      }
+    }
+    await fs.writeJson(packageJsonPath, packageObj, { spaces: 2 });
+
+    await execa('yarn', ['pack'], {
+      cwd: dir,
+      stdio: 'inherit',
+    });
+    await fs.writeJson(packageJsonPath, originalPackageObj, { spaces: 2 });
+  }
+}
+
+main().catch(err => {
+  console.log('error running pack:', err);
+  process.exit(1);
+});

utils/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "skipLibCheck": true,
+    "strict": false,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true,
+    "noEmitOnError": true,
+    "esModuleInterop": true,
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true
+  },
+  "include": ["*.ts"]
+}

utils/types.ts

@@ -0,0 +1,17 @@
+export interface TurboDryRun {
+  packages: Array<string>;
+  tasks: Array<Task>;
+}
+
+export interface Task {
+  taskId: string;
+  task: string;
+  package: string;
+  hash: string;
+  command: string;
+  outputs: Array<string>;
+  logFile: string;
+  directory: string;
+  dependencies: Array<string>;
+  dependents: Array<string>;
+}