Drop mz for util.promisify (#983)

package.json

@@ -45,7 +45,6 @@
     "eslint-plugin-node": "^8.0.0",
     "eslint-plugin-promise": "^4.0.1",
     "eslint-plugin-standard": "^4.0.0",
-    "mz": "^2.6.0",
     "nyc": "^14.0.0",
     "pkg-up": "^3.0.1",
     "sinon": "^7.0.0",

test/_setup.js

@@ -3,12 +3,15 @@
 const common = require('../src/common')
 const download = require('../src/download')
 const config = require('./config.json')
-const { exec } = require('mz/child_process')
+const childProcess = require('child_process')
 const fs = require('fs-extra')
 const os = require('os')
 const path = require('path')
+const { promisify } = require('util')
 const targets = require('../src/targets')
 
+childProcess.exec = promisify(childProcess.exec)
+
 function fixtureSubdir (subdir) {
   return path.join(__dirname, 'fixtures', subdir)
 }
@@ -66,7 +69,7 @@ async function npmInstallForFixture (fixture) {
     return true
   } else {
     console.log(`Running npm install in fixtures/${fixture}...`)
-    return exec('npm install --no-bin-links', { cwd: fixtureDir })
+    return childProcess.exec('npm install --no-bin-links', { cwd: fixtureDir })
   }
 }
 

test/darwin.js

@@ -1,15 +1,18 @@
 'use strict'
 
 const config = require('./config.json')
-const { exec } = require('mz/child_process')
+const childProcess = require('child_process')
 const fs = require('fs-extra')
 const mac = require('../src/mac')
 const packager = require('..')
 const path = require('path')
 const plist = require('plist')
+const { promisify } = require('util')
 const test = require('ava')
 const util = require('./_util')
 
+childProcess.exec = promisify(childProcess.exec)
+
 const darwinOpts = {
   name: 'darwinTest',
   dir: util.fixtureSubdir('basic'),
@@ -296,7 +299,7 @@ if (!(process.env.CI && process.platform === 'win32')) {
     const appPath = path.join(finalPath, opts.name + '.app')
     await util.assertDirectory(t, appPath, 'The expected .app directory should exist')
     try {
-      await exec(`codesign -v ${appPath}`)
+      await childProcess.exec(`codesign -v ${appPath}`)
       t.pass('codesign should verify successfully')
     } catch (err) {
       const notFound = err && err.code === 127