Add "pack" script for Vercel deployment (#145)

Enable Vercel deployments to upload tarballs of each package,
so that they can be installed and tested before being released
in a mainline npm package release.

For example:

```
npm i https://proxy-agents-git-pack-tootallnate.vercel.app/proxy-agent.tgz
```

.gitignore

@@ -24,3 +24,7 @@ yarn-error.log*
 
 # vercel
 .vercel
+
+# `pack` script
+*.tgz
+/public

package.json

@@ -5,6 +5,7 @@
     "build": "turbo run build",
     "lint": "turbo run lint",
     "test": "turbo run test",
+    "vercel-build": "turbo run pack",
     "test-e2e": "turbo run test-e2e",
     "format": "prettier --write \"**/*.{ts,tsx,md}\""
   },

packages/agent-base/.eslintignore

@@ -0,0 +1 @@
+dist

packages/agent-base/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/data-uri-to-buffer/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/degenerator/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "author": "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io/)",

packages/get-uri/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/http-proxy-agent/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "mocha",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/https-proxy-agent/package.json

@@ -11,7 +11,8 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail test/test.ts",
     "test-e2e": "jest --env node --verbose --bail test/e2e.test.ts",
-    "lint": "eslint src --ext .js,.ts",
+    "lint": "eslint --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/pac-proxy-agent/package.json

@@ -10,6 +10,8 @@
   "scripts": {
     "build": "tsc",
     "test": "mocha --reporter spec",
+    "lint": "eslint --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/pac-resolver/package.json

@@ -24,6 +24,7 @@
     "build": "tsc",
     "test": "mocha --reporter spec",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "repository": {

packages/proxy-agent/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "engines": {

packages/proxy/package.json

@@ -11,6 +11,7 @@
     "build": "tsc",
     "test": "mocha --reporter spec",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "keywords": [

packages/socks-proxy-agent/package.json

@@ -137,6 +137,7 @@
     "test": "mocha --reporter spec test/test.js",
     "test-e2e": "jest --env node --verbose --bail test/e2e.test.ts",
     "lint": "eslint . --ext .ts",
+    "pack": "node ../../scripts/pack.mjs",
     "prepublishOnly": "npm run build"
   },
   "license": "MIT"

scripts/pack.mjs

@@ -0,0 +1,35 @@
+import { join } from 'path';
+import { spawnSync } from 'child_process';
+import {
+	readFileSync,
+	writeFileSync,
+	readdirSync,
+	mkdirSync,
+    renameSync,
+} from "fs";
+
+// eslint-disable-next-line turbo/no-undeclared-env-vars
+const { VERCEL_URL } = process.env;
+
+const cwd = process.cwd();
+const publicDir = new URL('../public/', import.meta.url);
+mkdirSync(publicDir, { recursive: true });
+
+const packages = readdirSync(join(cwd, '..'));
+const pkgPath = join(cwd, 'package.json');
+const pkg = JSON.parse(readFileSync(pkgPath));
+if (pkg.dependencies) {
+    for (const dep of Object.keys(pkg.dependencies)) {
+        if (packages.includes(dep)) {
+            // This dep is one of the ones within the monorepo,
+            // so update to use a tarball URL
+            pkg.dependencies[dep] = `https://${VERCEL_URL}/${dep}.tgz`
+        }
+    }
+}
+writeFileSync(pkgPath, `${JSON.stringify(pkg, null, 2)}\n`);
+spawnSync('pnpm', ['pack']);
+
+const tarball = readdirSync(cwd).find(f => f.endsWith('.tgz'));
+const dest = new URL(`${pkg.name}.tgz`, publicDir);
+renameSync(join(cwd, tarball), dest);

turbo.json

@@ -18,6 +18,10 @@
     "test-e2e": {
       "dependsOn": ["build"]
     },
+    "pack": {
+      "env": ["VERCEL_URL"],
+      "dependsOn": ["build"]
+    },
     "lint": {}
   }
 }