Create a bundle using pkg on the fly

download/install.js

@@ -0,0 +1,16 @@
+/* eslint-disable no-var */
+
+// Native
+var path = require('path')
+var fs = require('fs')
+
+var dist = path.join(__dirname, 'dist')
+var src = path.join(__dirname, 'src')
+
+// Don't install when developing locally
+if (fs.existsSync(src)) {
+  // eslint-disable-next-line unicorn/no-process-exit
+  process.exit(0)
+}
+
+require(path.join(dist, 'download.js'))

download/src/chmod.js

@@ -0,0 +1,10 @@
+// Native
+import fs from 'fs'
+
+export default function (file) {
+  const s = fs.statSync(file)
+  const newMode = s.mode | 64 | 8 | 1
+  if (s.mode === newMode) return
+  const base8 = newMode.toString(8).slice(-3)
+  fs.chmodSync(file, base8)
+}

download/src/index.js

@@ -0,0 +1,148 @@
+/* eslint-disable unicorn/no-process-exit */
+
+// Native
+import fs from 'fs'
+import path from 'path'
+import zlib from 'zlib'
+
+// Packages
+import onDeath from 'death'
+import fetch from 'node-fetch'
+import retry from 'async-retry'
+
+// Utilities
+import plusxSync from './chmod'
+import {
+  disableProgress,
+  enableProgress,
+  info,
+  showProgress,
+  warn
+} from './log'
+
+fetch.Promise = Promise
+global.Promise = Promise
+const now = path.join(__dirname, 'now')
+const targetWin32 = path.join(__dirname, 'now.exe')
+const target = process.platform === 'win32' ? targetWin32 : now
+const partial = target + '.partial'
+
+const packagePath = path.join(__dirname, '../../package.json')
+const packageJSON = JSON.parse(fs.readFileSync(packagePath, 'utf8'))
+
+const platformToName = {
+  darwin: 'now-macos',
+  linux: 'now-linux',
+  win32: 'now-win.exe'
+}
+
+async function main() {
+  try {
+    fs.writeFileSync(
+      now,
+      '#!/usr/bin/env node\n' +
+        'console.log("Please wait until the \'now\' installation completes!")\n'
+    )
+  } catch (err) {
+    if (err.code === 'EACCES') {
+      warn(
+        'Please try installing now CLI again with the `--unsafe-perm` option.'
+      )
+      info('Example: `npm i -g --unsafe-perm now`')
+
+      process.exit()
+    }
+
+    throw err
+  }
+
+  onDeath(() => {
+    fs.writeFileSync(
+      now,
+      '#!/usr/bin/env node\n' +
+        'console.log("The \'now\' installation did not complete successfully.")\n' +
+        'console.log("Please run \'npm i -g now\' to reinstall!")\n'
+    )
+    process.exit()
+  })
+
+  info('For the source code, check out: https://github.com/zeit/now-cli')
+
+  // Print an empty line
+  console.log('')
+
+  await retry(async () => {
+    enableProgress('Downloading now CLI ' + packageJSON.version)
+    showProgress(0)
+
+    try {
+      const name = platformToName[process.platform]
+      const url = `https://cdn.zeit.co/releases/now-cli/${packageJSON.version}/${name}`
+      const resp = await fetch(url, { compress: false })
+
+      if (resp.status !== 200) {
+        throw new Error(resp.statusText + ' ' + url)
+      }
+
+      const size = resp.headers.get('content-length')
+      const ws = fs.createWriteStream(partial)
+
+      await new Promise((resolve, reject) => {
+        let bytesRead = 0
+
+        resp.body
+          .on('error', reject)
+          .on('data', chunk => {
+            bytesRead += chunk.length
+            showProgress(100 * bytesRead / size)
+          })
+
+        const gunzip = zlib.createGunzip()
+
+        gunzip
+          .on('error', reject)
+
+        resp.body.pipe(gunzip).pipe(ws)
+
+        ws
+          .on('error', reject)
+          .on('close', () => {
+            showProgress(100)
+            resolve()
+          })
+      })
+    } finally {
+      disableProgress()
+    }
+  }, {
+    retries: 500,
+    onRetry: (err) => console.error(err)
+  })
+
+  fs.renameSync(partial, target)
+
+  if (process.platform === 'win32') {
+    // Now.exe is executed only
+    fs.unlinkSync(now)
+    // Workaround for https://github.com/npm/cmd-shim/pull/25
+    const gitBashFile = path.join(process.env.APPDATA, 'npm/now')
+    fs.writeFileSync(
+      gitBashFile,
+      '#!/bin/sh\n' +
+        'basedir=$(dirname "$(echo "$0" | sed -e \'s,\\\\,/,g\')")\n' +
+        '\n' +
+        'case `uname` in\n' +
+        '    *CYGWIN*) basedir=`cygpath -w "$basedir"`;;\n' +
+        'esac\n' +
+        '\n' +
+        fs.readFileSync(gitBashFile, 'utf8')
+    )
+  } else {
+    plusxSync(now)
+  }
+}
+
+main().catch(err => {
+  console.error(err)
+  process.exit(2)
+})

download/src/log.js

@@ -0,0 +1,43 @@
+// Packages
+import assert from 'assert'
+import chalk from 'chalk'
+import Progress from 'progress'
+
+let bar
+
+export function enableProgress(text) {
+  assert(!bar)
+
+  bar = new Progress(`> ${text} [:bar] :percent`, {
+    stream: process.stdout,
+    width: 20,
+    complete: '=',
+    incomplete: ' ',
+    total: 100
+  })
+}
+
+export function info(text) {
+  console.log(`> ${text}`)
+}
+
+export function warn(text) {
+  console.log(chalk.red('> Warning!'), text)
+}
+
+export function showProgress(percentage) {
+  assert(bar)
+  bar.update(percentage / 100)
+}
+
+export function disableProgress() {
+  assert(bar)
+
+  // It is auto-completed once it updates to 100
+  // otherwise it outputs a blank line
+  if (!bar.complete) {
+    bar.terminate()
+  }
+
+  bar = undefined
+}

download/webpack.config.js

@@ -0,0 +1,34 @@
+// Native
+const path = require('path')
+
+module.exports = {
+  target: 'node',
+  node: {
+    __dirname: false,
+    __filename: false,
+    process: false
+  },
+  entry: [
+    './src/index.js'
+  ],
+  output: {
+    path: path.join(__dirname, 'dist'),
+    filename: 'download.js'
+  },
+  module: {
+    loaders: [ {
+      test: /.js$/,
+      loader: 'babel-loader',
+      exclude: /node_modules/,
+      query: {
+        plugins: [
+          'transform-async-to-generator',
+          'transform-runtime'
+        ],
+        presets: [
+          'es2015'
+        ]
+      }
+    } ]
+  }
+}

package.json

@@ -5,9 +5,12 @@
   "scripts": {
     "test": "eslint .",
     "prepublish": "webpack",
-    "lint:staged": "lint-staged",
     "dev": "webpack -w",
-    "precommit": "lint-staged"
+    "precommit": "lint-staged",
+    "postinstall": "node download/install.js",
+    "prepublish": "in-install || (npm run prepare && cp /dev/null download/dist/now)",
+    "pack": "pkg dist/now.js -c package.json -o packed/now",
+    "prepare": "webpack --context download --config download/webpack.config.js"
   },
   "lint-staged": {
     "*.js": [
@@ -16,15 +19,28 @@
       "git add"
     ]
   },
-  "main": "./dist/now.js",
+  "bin": {
+    "now": "download/dist/now"
+  },
   "files": [
-    "dist"
+    "download/dist",
+    "download/install.js"
   ],
-  "bin": {
-    "now": "./dist/now.js"
+  "pkg": {
+    "scripts": [
+      "bin/*",
+      "lib/**/*"
+    ],
+    "targets": [
+      "node7-alpine-x64",
+      "node7-linux-x64",
+      "node7-macos-x64",
+      "node7-win-x64"
+    ]
   },
   "eslintIgnore": [
     "src/providers/sh/legacy/**",
+    "download/**",
     "dist"
   ],
   "eslintConfig": {
@@ -63,6 +79,7 @@
     "ansi-escapes": "2.0.0",
     "archiver": "2.0.0",
     "array-unique": "0.3.2",
+    "assert": "1.4.1",
     "async-retry": "1.1.3",
     "aws-sdk": "2.98.0",
     "babel-core": "6.25.0",
@@ -76,6 +93,7 @@
     "chalk": "2.1.0",
     "clipboardy": "1.1.4",
     "convert-stream": "1.0.2",
+    "death": "1.1.0",
     "debug": "3.0.0",
     "deployment-type": "1.0.1",
     "docker-file-parser": "1.0.2",

webpack.config.js

@@ -13,7 +13,7 @@ module.exports = {
     loaders: [
       {
         test: /\.js$/,
-        exclude: [/node_modules/],
+        exclude: /node_modules/,
         loaders: ['shebang-loader', 'babel-loader']
       }
     ]

yarn.lock

@@ -205,7 +205,7 @@ assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
 
-assert@^1.1.1:
+assert@1.4.1, assert@^1.1.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/assert/-/assert-1.4.1.tgz#99912d591836b5a6f5b345c0f07eefc08fc65d91"
   dependencies:
@@ -1253,6 +1253,10 @@ date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
 
+death@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/death/-/death-1.1.0.tgz#01aa9c401edd92750514470b8266390c66c67318"
+
 debug@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.0.0.tgz#1d2feae53349047b08b264ec41906ba17a8516e4"