use eslint

.eslintrc

@@ -0,0 +1,9 @@
+
+env:
+  node: true
+  mocha: true
+
+rules:
+  quotes: [2, "single"]
+  camelcase: 0
+  no-underscore-dangle: 0

index.js

@@ -1,3 +1,4 @@
+'use strict';
 
 var MongoClient = require('mongodb').MongoClient;
 var uuid = require('node-uuid');
@@ -20,7 +21,7 @@ var moment = require('moment');
  */
 var Adapter = module.exports = function(config) {
 
-  if (!(this instanceof Adapter)) return new Adapter(config);
+  if (!(this instanceof Adapter)) {return new Adapter(config); }
 
   this.config = config;
   this.collection = config.db.collection;
@@ -31,7 +32,7 @@ var Adapter = module.exports = function(config) {
   // create connection as soon as module is required and share global db object
   var that = this;
   MongoClient.connect(url, function(err, database) {
-    if (err) throw err;
+    if (err) {throw err; }
     that.db = database;
   });
 
@@ -82,7 +83,7 @@ Adapter.prototype.save = function(name, email, pw, done) {
 
   // create salt and hash
   pwd.hash(pw, function(err, salt, hash) {
-    if (err) return done(err);
+    if (err) {return done(err); }
     user.salt = salt;
     user.derived_key = hash;
     that.db.collection(that.collection).save(user, done);
@@ -148,8 +149,8 @@ Adapter.prototype.find = function(match, query, done) {
 Adapter.prototype.update = function(user, done) {
   var that = this;
   // update user in db
-  that.db.collection(that.collection).save(user, function(err, res) {
-    if (err) return done(err);
+  that.db.collection(that.collection).save(user, function(err) {
+    if (err) {return done(err); }
     // res is not the updated user object! -> find manually
     that.db.collection(that.collection).findOne({_id: user._id}, done);
   });
@@ -172,8 +173,8 @@ Adapter.prototype.update = function(user, done) {
  */
 Adapter.prototype.remove = function(name, done) {
   this.db.collection(this.collection).remove({name: name}, function(err, numberOfRemovedDocs) {
-    if (err) return done(err);
-    if (numberOfRemovedDocs === 0) return done(new Error('lockit - Cannot find user "' + name + '"'));
+    if (err) {return done(err); }
+    if (numberOfRemovedDocs === 0) {return done(new Error('lockit - Cannot find user "' + name + '"')); }
     done(null, true);
   });
 };

package.json

@@ -29,9 +29,10 @@
     "mongodb": "^1.4.5"
   },
   "devDependencies": {
-    "should": "^3.3.1",
-    "grunt-mocha-test": "^0.10.2",
+    "eslint": "^0.24.0",
     "grunt": "^0.4.5",
-    "grunt-contrib-jshint": "^0.10.0"
+    "grunt-contrib-jshint": "^0.10.0",
+    "grunt-mocha-test": "^0.10.2",
+    "should": "^3.3.1"
   }
 }