1 files changed, 40 insertions, 6 deletions

diff --git a/deps/npm/node_modules/write-file-atomic/index.js b/deps/npm/node_modules/write-file-atomic/index.js
index 7939828e53..c677ee9622 100644
--- a/deps/npm/node_modules/write-file-atomic/index.js
+++ b/deps/npm/node_modules/write-file-atomic/index.js
@@ -6,7 +6,6 @@ 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
 
 var invocations = 0
 function getTmpname (filename) {
@@ -38,7 +37,7 @@ function _writeFile (filename, data, options, callback) {
     return fs.stat(filename, function (err, stats) {
       if (err || !stats) return thenWriteFile()
 
-      options = extend({}, options)
+      options = Object.assign({}, options)
       if (!options.mode) {
         options.mode = stats.mode
       }
@@ -51,15 +50,41 @@ function _writeFile (filename, data, options, callback) {
 
   function thenWriteFile () {
     chain([
-      [fs, fs.writeFile, tmpfile, data, options.encoding || 'utf8'],
-      options.mode && [fs, fs.chmod, tmpfile, options.mode],
+      [writeFileAsync, tmpfile, data, options.mode, options.encoding || 'utf8'],
       options.chown && [fs, fs.chown, tmpfile, options.chown.uid, options.chown.gid],
+      options.mode && [fs, fs.chmod, tmpfile, options.mode],
       [fs, fs.rename, tmpfile, filename]
     ], function (err) {
       err ? fs.unlink(tmpfile, function () { callback(err) })
         : callback()
     })
   }
+
+  // doing this instead of `fs.writeFile` in order to get the ability to
+  // call `fsync`.
+  function writeFileAsync (file, data, mode, encoding, cb) {
+    fs.open(file, 'w', options.mode, function (err, fd) {
+      if (err) return cb(err)
+      if (Buffer.isBuffer(data)) {
+        return fs.write(fd, data, 0, data.length, 0, syncAndClose)
+      } else if (data != null) {
+        return fs.write(fd, String(data), 0, String(encoding), syncAndClose)
+      } else {
+        return syncAndClose()
+      }
+      function syncAndClose (err) {
+        if (err) return cb(err)
+        if (options.fsync !== false) {
+          fs.fsync(fd, function (err) {
+            if (err) return cb(err)
+            fs.close(fd, cb)
+          })
+        } else {
+          fs.close(fd, cb)
+        }
+      }
+    })
+  }
 }
 
 function writeFileSync (filename, data, options) {
@@ -77,7 +102,7 @@ function writeFileSync (filename, data, options) {
       // Default behavior is to copy it from original file
       try {
         var stats = fs.statSync(filename)
-        options = extend({}, options)
+        options = Object.assign({}, options)
         if (!options.mode) {
           options.mode = stats.mode
         }
@@ -89,7 +114,16 @@ function writeFileSync (filename, data, options) {
       }
     }
 
-    fs.writeFileSync(tmpfile, data, options.encoding || 'utf8')
+    var fd = fs.openSync(tmpfile, 'w', options.mode)
+    if (Buffer.isBuffer(data)) {
+      fs.writeSync(fd, data, 0, data.length, 0)
+    } else if (data != null) {
+      fs.writeSync(fd, String(data), 0, String(options.encoding || 'utf8'))
+    }
+    if (options.fsync !== false) {
+      fs.fsyncSync(fd)
+    }
+    fs.closeSync(fd)
     if (options.chown) fs.chownSync(tmpfile, options.chown.uid, options.chown.gid)
     if (options.mode) fs.chmodSync(tmpfile, options.mode)
     fs.renameSync(tmpfile, filename)