1 files changed, 28 insertions, 14 deletions

diff --git a/deps/npm/node_modules/write-file-atomic/index.js b/deps/npm/node_modules/write-file-atomic/index.js
index 519aacad98..7939828e53 100644
--- a/deps/npm/node_modules/write-file-atomic/index.js
+++ b/deps/npm/node_modules/write-file-atomic/index.js
@@ -1,38 +1,48 @@
 'use strict'
+module.exports = writeFile
+module.exports.sync = writeFileSync
+module.exports._getTmpname = getTmpname // for testing
+
 var fs = require('graceful-fs')
 var chain = require('slide').chain
 var MurmurHash3 = require('imurmurhash')
 var extend = Object.assign || require('util')._extend
 
-function murmurhex () {
-  var hash = new MurmurHash3()
-  for (var ii = 0; ii < arguments.length; ++ii) hash.hash('' + arguments[ii])
-  return hash.result()
-}
 var invocations = 0
-var getTmpname = function (filename) {
-  return filename + '.' + murmurhex(__filename, process.pid, ++invocations)
+function getTmpname (filename) {
+  return filename + '.' +
+    MurmurHash3(__filename)
+      .hash(String(process.pid))
+      .hash(String(++invocations))
+      .result()
 }
 
-module.exports = function writeFile (filename, data, options, callback) {
+function writeFile (filename, data, options, callback) {
   if (options instanceof Function) {
     callback = options
     options = null
   }
   if (!options) options = {}
+  fs.realpath(filename, function (_, realname) {
+    _writeFile(realname || filename, data, options, callback)
+  })
+}
+function _writeFile (filename, data, options, callback) {
   var tmpfile = getTmpname(filename)
 
-  if (options.mode && options.chmod) {
+  if (options.mode && options.chown) {
     return thenWriteFile()
   } else {
     // Either mode or chown is not explicitly set
     // Default behavior is to copy it from original file
     return fs.stat(filename, function (err, stats) {
+      if (err || !stats) return thenWriteFile()
+
       options = extend({}, options)
-      if (!err && stats && !options.mode) {
+      if (!options.mode) {
         options.mode = stats.mode
       }
-      if (!err && stats && !options.chown && process.getuid) {
+      if (!options.chown && process.getuid) {
         options.chown = { uid: stats.uid, gid: stats.gid }
       }
       return thenWriteFile()
@@ -52,17 +62,21 @@ module.exports = function writeFile (filename, data, options, callback) {
   }
 }
 
-module.exports.sync = function writeFileSync (filename, data, options) {
+function writeFileSync (filename, data, options) {
   if (!options) options = {}
+  try {
+    filename = fs.realpathSync(filename)
+  } catch (ex) {
+    // it's ok, it'll happen on a not yet existing file
+  }
   var tmpfile = getTmpname(filename)
 
   try {
-    if (!options.mode || !options.chmod) {
+    if (!options.mode || !options.chown) {
       // Either mode or chown is not explicitly set
       // Default behavior is to copy it from original file
       try {
         var stats = fs.statSync(filename)
-
         options = extend({}, options)
         if (!options.mode) {
           options.mode = stats.mode