From 3d2a7b29d1f4d4b7eec352ac1955fbf5bb640d9f Mon Sep 17 00:00:00 2001
From: Pooya Parsa <pooya@pi0.ir>
Date: Fri, 1 Jun 2018 16:54:37 +0430
Subject: [PATCH] use pify instead of utils.promisify for legacy build support

---
 lib/builder/builder.js | 10 +++++-----
 package.json           |  1 +
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/builder/builder.js b/lib/builder/builder.js
index bc14777189..a0f99ccfa5 100644
--- a/lib/builder/builder.js
+++ b/lib/builder/builder.js
@@ -1,7 +1,7 @@
-import util from 'util'
 import path from 'path'
 import fs from 'fs'
 
+import pify from 'pify'
 import _ from 'lodash'
 import chokidar from 'chokidar'
 import fsExtra from 'fs-extra'
@@ -22,7 +22,7 @@ import PerfLoader from './webpack/utils/perf-loader'
 import ClientWebpackConfig from './webpack/client'
 import ServerWebpackConfig from './webpack/server'
 
-const glob = util.promisify(Glob)
+const glob = pify(Glob)
 
 export default class Builder {
   constructor(nuxt) {
@@ -539,7 +539,7 @@ export default class Builder {
     consola.debug('Adding webpack middleware...')
 
     // Create webpack dev middleware
-    this.webpackDevMiddleware = util.promisify(
+    this.webpackDevMiddleware = pify(
       webpackDevMiddleware(
         compiler,
         Object.assign(
@@ -554,9 +554,9 @@ export default class Builder {
       )
     )
 
-    this.webpackDevMiddleware.close = util.promisify(this.webpackDevMiddleware.close)
+    this.webpackDevMiddleware.close = pify(this.webpackDevMiddleware.close)
 
-    this.webpackHotMiddleware = util.promisify(
+    this.webpackHotMiddleware = pify(
       webpackHotMiddleware(
         compiler,
         Object.assign(
diff --git a/package.json b/package.json
index 4ada45afd6..128d58243e 100644
--- a/package.json
+++ b/package.json
@@ -99,6 +99,7 @@
     "mini-css-extract-plugin": "^0.4.0",
     "minimist": "^1.2.0",
     "opencollective": "^1.0.3",
+    "pify": "^3.0.0",
     "postcss": "^6.0.22",
     "postcss-cssnext": "^3.1.0",
     "postcss-import": "^11.1.0",