[refactor] updating syntax and doing some light clean up

lib/temp.js

@@ -1,20 +1,21 @@
-var fs   = require('fs'),
-    path = require('path'),
-    cnst = require('constants');
+let fs   = require('fs');
+let path = require('path');
+let cnst = require('constants');
 
-var rimraf     = require('rimraf'),
-    os         = require('os'),
-    osTmpdir   = require('os').tmpdir(),
-    mkdirp     = require('mkdirp'),
-    rimrafSync = rimraf.sync;
+let os         = require('os');
+let rimraf     = require('rimraf');
+let mkdirp     = require('mkdirp');
+let osTmpdir   = require('os').tmpdir();
 
-/* HELPERS */
+const rimrafSync = rimraf.sync;
 
-var dir = path.resolve(os.tmpdir());
+//== helpers
+//
+let dir = path.resolve(os.tmpdir());
 
-var RDWR_EXCL = cnst.O_CREAT | cnst.O_TRUNC | cnst.O_RDWR | cnst.O_EXCL;
+let RDWR_EXCL = cnst.O_CREAT | cnst.O_TRUNC | cnst.O_RDWR | cnst.O_EXCL;
 
-var promisify = function(callback) {
+let promisify = function(callback) {
   if (typeof callback === 'function') {
     return [undefined, callback];
   }
@@ -253,14 +254,14 @@ function cleanup(callback) {
   return promise;
 }
 
-/* DIRECTORIES */
-
-function mkdir(affixes, callback) {
+//== directories
+//
+const mkdir = (affixes, callback) => {
   var p = promisify(callback);
   var promise = p[0];
   callback = p[1];
 
-  var dirPath = generateName(affixes, 'd-');
+  let dirPath = generateName(affixes, 'd-');
   mkdirp(dirPath, 0700, function(err) {
     if (!err) {
       deleteDirOnExit(dirPath);
@@ -270,16 +271,16 @@ function mkdir(affixes, callback) {
   return promise;
 }
 
-function mkdirSync(affixes) {
-  var dirPath = generateName(affixes, 'd-');
+const mkdirSync = (affixes) => {
+  let dirPath = generateName(affixes, 'd-');
   mkdirp.sync(dirPath, 0700);
   deleteDirOnExit(dirPath);
   return dirPath;
 }
 
-/* FILES */
-
-function open(affixes, callback) {
+//== files
+//
+const open = (affixes, callback) => {
   var p = promisify(callback);
   var promise = p[0];
   callback = p[1];
@@ -294,25 +295,27 @@ function open(affixes, callback) {
   return promise;
 }
 
-function openSync(affixes) {
-  var filePath = generateName(affixes, 'f-');
-  var fd = fs.openSync(filePath, RDWR_EXCL, parseInt('0600', 8));
+const openSync = (affixes) => {
+  const filePath = generateName(affixes, 'f-');
+  let fd = fs.openSync(filePath, RDWR_EXCL, parseInt('0600', 8));
   deleteFileOnExit(filePath);
   return {path: filePath, fd: fd};
 }
 
-function createWriteStream(affixes) {
-  var filePath = generateName(affixes, 's-');
-  var stream = fs.createWriteStream(filePath, {flags: RDWR_EXCL, mode: parseInt('0600', 8)});
+const createWriteStream =  (affixes) => {
+  const filePath = generateName(affixes, 's-');
+  let stream = fs.createWriteStream(filePath, {flags: RDWR_EXCL, mode: parseInt('0600', 8)});
   deleteFileOnExit(filePath);
   return stream;
 }
 
-/* EXPORTS */
-// Settings
+//== settings
+//
 exports.dir               = dir;
 exports.track             = track;
-// Functions
+
+//== functions
+//
 exports.mkdir             = mkdir;
 exports.mkdirSync         = mkdirSync;
 exports.open              = open;