update dependencies

app/node_modules/fs-extra/lib/copy/copy.js

@@ -1,7 +1,10 @@
-var fs = require('graceful-fs')
-var path = require('path')
-var ncp = require('./ncp')
-var mkdir = require('../mkdirs')
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const ncp = require('./ncp')
+const mkdir = require('../mkdirs')
+const pathExists = require('../path-exists').pathExists
 
 function copy (src, dest, options, callback) {
   if (typeof options === 'function' && !callback) {
@@ -13,27 +16,34 @@ function copy (src, dest, options, callback) {
   callback = callback || function () {}
   options = options || {}
 
+  // Warn about using preserveTimestamps on 32-bit node:
+  if (options.preserveTimestamps && process.arch === 'ia32') {
+    console.warn(`fs-extra: Using the preserveTimestamps option in 32-bit node is not recommended;\n
+    see https://github.com/jprichardson/node-fs-extra/issues/269`)
+  }
+
   // don't allow src and dest to be the same
-  var basePath = process.cwd()
-  var currentPath = path.resolve(basePath, src)
-  var targetPath = path.resolve(basePath, dest)
+  const basePath = process.cwd()
+  const currentPath = path.resolve(basePath, src)
+  const targetPath = path.resolve(basePath, dest)
   if (currentPath === targetPath) return callback(new Error('Source and destination must not be the same.'))
 
-  fs.lstat(src, function (err, stats) {
+  fs.lstat(src, (err, stats) => {
     if (err) return callback(err)
 
-    var dir = null
+    let dir = null
     if (stats.isDirectory()) {
-      var parts = dest.split(path.sep)
+      const parts = dest.split(path.sep)
       parts.pop()
       dir = parts.join(path.sep)
     } else {
       dir = path.dirname(dest)
     }
 
-    fs.exists(dir, function (dirExists) {
+    pathExists(dir, (err, dirExists) => {
+      if (err) return callback(err)
       if (dirExists) return ncp(src, dest, options, callback)
-      mkdir.mkdirs(dir, function (err) {
+      mkdir.mkdirs(dir, err => {
         if (err) return callback(err)
         ncp(src, dest, options, callback)
       })