fix babel.js that only build on macOS (#461)

use gulp-crx-pack library for chrome extension packaging

Fixes #452

chrome_test_key.pem

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

gulpfile.babel.js

@@ -1,5 +1,6 @@
 import gulp from 'gulp'
 import fs from 'fs'
+import os from 'os'
 import path from 'path'
 import {merge} from 'event-stream'
 import map from 'map-stream'
@@ -80,15 +81,15 @@ gulp.task('chrome:zip', () => {
   return pipe('./tmp/chrome/**/*', $.zip('chrome.zip'), './dist')
 })
 
-gulp.task('chrome:_crx', (cb) => {
-  $.run('"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"' +
-    ' --pack-extension=' + path.join(__dirname, './tmp/chrome') +
-    ' --pack-extension-key=' + path.join(process.env.HOME, '.ssh/chrome.pem')
-  ).exec(cb)
-})
+gulp.task('chrome:crx', () => {
+  const real = path.join(os.homedir() + '.ssh/chrome.pem')
+  const test = './chrome_test_key.pem'
+  const privateKey = fs.existsSync(real) ? fs.readFileSync(real) : fs.readFileSync(test)
 
-gulp.task('chrome:crx', ['chrome:_crx'], () => {
-  return pipe('./tmp/chrome.crx', './dist')
+  return pipe('./tmp/chrome', $.crxPack({
+    privateKey: privateKey,
+    filename: 'chrome.crx'
+  }), './dist')
 })
 
 // Opera

package.json

@@ -32,6 +32,7 @@
     "gulp-babel": "^6.1.0",
     "gulp-clean": "^0.3.1",
     "gulp-concat": "*",
+    "gulp-crx-pack": "^1.0.1",
     "gulp-exit": "0.0.2",
     "gulp-less": "^1.3.1",
     "gulp-load-plugins": "^0.5.3",