Switch from underscore to lodash

package.json

@@ -45,6 +45,7 @@
     "jquery": "^3.1.0",
     "json-2-csv": "^2.0.22",
     "less": "^2.0.0",
+    "lodash": "^4.17.4",
     "lodash.padstart": "^4.6.1",
     "logrotate-stream": "^0.2.3",
     "lru-cache": "4.0.2",
@@ -93,8 +94,6 @@
     "templates.js": "0.3.10",
     "toobusy-js": "^0.5.1",
     "uglify-js": "^3.0.11",
-    "underscore": "^1.8.3",
-    "underscore.deep": "^0.5.1",
     "validator": "7.0.0",
     "winston": "^2.1.0",
     "xml": "^1.0.1",

src/categories/recentreplies.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('../database');
 var posts = require('../posts');

src/controllers/authentication.js

@@ -5,7 +5,7 @@ var winston = require('winston');
 var passport = require('passport');
 var nconf = require('nconf');
 var validator = require('validator');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('../database');
 var meta = require('../meta');

src/database/mongo.js

@@ -6,12 +6,10 @@ var winston = require('winston');
 var async = require('async');
 var nconf = require('nconf');
 var session = require('express-session');
-var _ = require('underscore');
+var _ = require('lodash');
 var semver = require('semver');
 var db;
 
-_.mixin(require('underscore.deep'));
-
 var mongoModule = module.exports;
 
 mongoModule.questions = [
@@ -87,7 +85,7 @@ mongoModule.init = function (callback) {
 		autoReconnect: true,
 	};
 
-	connOptions = _.deepExtend(connOptions, nconf.get('mongo:options') || {});
+	connOptions = _.merge(connOptions, nconf.get('mongo:options') || {});
 
 	mongoClient.connect(connString, connOptions, function (err, _db) {
 		if (err) {

src/database/redis.js

@@ -1,6 +1,6 @@
 'use strict';
 
-var _ = require('underscore');
+var _ = require('lodash');
 var async = require('async');
 var winston = require('winston');
 var nconf = require('nconf');
@@ -9,8 +9,6 @@ var session = require('express-session');
 var redis = require('redis');
 var redisClient;
 
-_.mixin(require('underscore.deep'));
-
 var redisModule = module.exports;
 
 redisModule.questions = [
@@ -78,7 +76,7 @@ redisModule.connect = function (options) {
 		options.auth_pass = nconf.get('redis:password');
 	}
 
-	options = _.deepExtend(options, nconf.get('redis:options') || {});
+	options = _.merge(options, nconf.get('redis:options') || {});
 
 	if (redis_socket_or_host && redis_socket_or_host.indexOf('/') >= 0) {
 		/* If redis.host contains a path name character, use the unix dom sock connection. ie, /tmp/redis.sock */

src/flags.js

@@ -1,6 +1,9 @@
 'use strict';
 
 var async = require('async');
+var _ = require('lodash');
+var S = require('string');
+
 var db = require('./database');
 var user = require('./user');
 var groups = require('./groups');
@@ -12,8 +15,6 @@ var posts = require('./posts');
 var privileges = require('./privileges');
 var plugins = require('./plugins');
 var utils = require('../public/src/utils');
-var _ = require('underscore');
-var S = require('string');
 
 var Flags = module.exports;
 

src/groups/membership.js

@@ -2,7 +2,7 @@
 
 var async = require('async');
 var winston = require('winston');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var user = require('../user');
 var utils = require('../utils');
@@ -456,7 +456,7 @@ module.exports = function (Groups) {
 			},
 			function (_members, next) {
 				members = _members;
-				uniqueGroups = _.unique(_.flatten(members));
+				uniqueGroups = _.uniq(_.flatten(members));
 				uniqueGroups = Groups.removeEphemeralGroups(uniqueGroups);
 
 				Groups.isMemberOfGroups(uid, uniqueGroups, next);

src/meta/languages.js

@@ -6,7 +6,7 @@ var async = require('async');
 var fs = require('fs');
 var mkdirp = require('mkdirp');
 var rimraf = require('rimraf');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var file = require('../file');
 var Plugins = require('../plugins');

src/notifications.js

@@ -5,7 +5,7 @@ var winston = require('winston');
 var cron = require('cron').CronJob;
 var nconf = require('nconf');
 var S = require('string');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('./database');
 var User = require('./user');
@@ -247,7 +247,7 @@ Notifications.pushGroups = function (notification, groupNames, callback) {
 			groups.getMembersOfGroups(groupNames, next);
 		},
 		function (groupMembers, next) {
-			var members = _.unique(_.flatten(groupMembers));
+			var members = _.uniq(_.flatten(groupMembers));
 			Notifications.push(notification, members, next);
 		},
 	], callback);

src/pagination.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var qs = require('querystring');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var pagination = {};
 

src/plugins/load.js

@@ -5,7 +5,7 @@ var semver = require('semver');
 var async = require('async');
 var winston = require('winston');
 var nconf = require('nconf');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var meta = require('../meta');
 

src/posts.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('./database');
 var utils = require('./utils');

src/posts/category.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('../database');
 var topics = require('../topics');

src/posts/create.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var meta = require('../meta');
 var db = require('../database');

src/posts/delete.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('../database');
 var topics = require('../topics');

src/posts/edit.js

@@ -2,7 +2,7 @@
 
 var async = require('async');
 var validator = require('validator');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('../database');
 var topics = require('../topics');

src/privileges/categories.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var categories = require('../categories');
 var user = require('../user');
@@ -58,7 +58,7 @@ module.exports = function (privileges) {
 									});
 								});
 
-								var members = _.unique(_.flatten(memberSets));
+								var members = _.uniq(_.flatten(memberSets));
 
 								user.getUsersFields(members, ['picture', 'username'], next);
 							},
@@ -93,7 +93,7 @@ module.exports = function (privileges) {
 							},
 							function (results, next) {
 								var memberSets = results.memberSets;
-								var uniqueGroups = _.unique(_.flatten(memberSets));
+								var uniqueGroups = _.uniq(_.flatten(memberSets));
 
 								var groupNames = results.groupNames.filter(function (groupName) {
 									return groupName.indexOf(':privileges:') === -1 && uniqueGroups.indexOf(groupName) !== -1;
@@ -171,7 +171,9 @@ module.exports = function (privileges) {
 				}, next);
 			},
 			function (results, next) {
-				var privData = _.object(privs, results.privileges);
+				var privData = _.fromPairs(privs.map(function (priv, i) {
+					return [priv, results.privileges[i]];
+				}));
 				var isAdminOrMod = results.isAdministrator || results.isModerator;
 
 				plugins.fireHook('filter:privileges.categories.get', {

src/privileges/topics.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var meta = require('../meta');
 var topics = require('../topics');
@@ -29,7 +29,9 @@ module.exports = function (privileges) {
 				}, next);
 			},
 			function (results, next) {
-				var privData = _.object(privs, results.privileges);
+				var privData = _.fromPairs(privs.map(function (priv, i) {
+					return [priv, results.privileges[i]];
+				}));
 				var disabled = parseInt(results.disabled, 10) === 1;
 				var locked = parseInt(topic.locked, 10) === 1;
 				var deleted = parseInt(topic.deleted, 10) === 1;

src/socket.io/posts/edit.js

@@ -2,7 +2,7 @@
 
 var async = require('async');
 var validator = require('validator');
-var _ = require('underscore');
+var _ = require('lodash');
 var S = require('string');
 
 var posts = require('../../posts');
@@ -69,7 +69,7 @@ module.exports = function (SocketPosts) {
 				], next);
 			},
 			function (results, next) {
-				var uids = _.unique(_.flatten(results).concat(socket.uid.toString()));
+				var uids = _.uniq(_.flatten(results).concat(socket.uid.toString()));
 				uids.forEach(function (uid) {
 					websockets.in('uid_' + uid).emit('event:post_edited', editResult);
 				});

src/topics.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('./database');
 var posts = require('./posts');
@@ -135,8 +135,12 @@ Topics.getTopicsByTids = function (tids, uid, callback) {
 			}, next);
 		},
 		function (results, next) {
-			var users = _.object(uids, results.users);
+			var users = _.fromPairs(results.users.map(function (user) {
-			var categories = _.object(cids, results.categories);
+				return [user.uid, user];
+			}));
+			var categories = _.fromPairs(results.categories.map(function (category) {
+				return [category.cid, category];
+			}));
 
 			for (var i = 0; i < topics.length; i += 1) {
 				if (topics[i]) {

src/topics/create.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 var validator = require('validator');
 var S = require('string');
 var db = require('../database');

src/topics/posts.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 var validator = require('validator');
 
 var db = require('../database');

src/topics/suggested.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var categories = require('../categories');
 var search = require('../search');
@@ -51,7 +51,7 @@ module.exports = function (Topics) {
 				}, next);
 			},
 			function (data, next) {
-				next(null, _.unique(_.flatten(data)));
+				next(null, _.uniq(_.flatten(data)));
 			},
 		], callback);
 	}

src/topics/tags.js

@@ -5,7 +5,7 @@ var async = require('async');
 
 var db = require('../database');
 var meta = require('../meta');
-var _ = require('underscore');
+var _ = require('lodash');
 var plugins = require('../plugins');
 var utils = require('../utils');
 
@@ -247,7 +247,9 @@ module.exports = function (Topics) {
 					tag.score = results.counts[index] ? results.counts[index] : 0;
 				});
 
-				var tagData = _.object(uniqueTopicTags, results.tagData);
+				var tagData = _.fromPairs(results.tagData.map(function (tag) {
+					return [tag.value, tag];
+				}));
 
 				topicTags.forEach(function (tags, index) {
 					if (Array.isArray(tags)) {
@@ -444,7 +446,7 @@ module.exports = function (Topics) {
 				}, next);
 			},
 			function (tids, next) {
-				tids = _.shuffle(_.unique(_.flatten(tids))).slice(0, maximumTopics);
+				tids = _.shuffle(_.uniq(_.flatten(tids))).slice(0, maximumTopics);
 				Topics.getTopics(tids, uid, next);
 			},
 			function (topics, next) {

src/topics/tools.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var db = require('../database');
 var categories = require('../categories');
@@ -210,7 +210,7 @@ module.exports = function (Topics) {
 				Topics.getTopicsFields(tids, ['cid'], next);
 			},
 			function (topicData, next) {
-				var uniqueCids = _.unique(topicData.map(function (topicData) {
+				var uniqueCids = _.uniq(topicData.map(function (topicData) {
 					return topicData && parseInt(topicData.cid, 10);
 				}));
 

src/user.js

@@ -1,7 +1,7 @@
 'use strict';
 
-var async = require('async');
+var	async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var groups = require('./groups');
 var plugins = require('./plugins');

src/user/auth.js

@@ -154,7 +154,7 @@ module.exports = function (User) {
 	};
 
 	User.auth.deleteAllSessions = function (callback) {
-		var _ = require('underscore');
+		var _ = require('lodash');
 		batch.processSortedSet('users:joindate', function (uids, next) {
 			var sessionKeys = uids.map(function (uid) {
 				return 'uid:' + uid + ':sessions';

src/user/info.js

@@ -1,7 +1,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 var validator = require('validator');
 
 var db = require('../database');

src/user/settings.js

@@ -2,7 +2,7 @@
 'use strict';
 
 var async = require('async');
-var _ = require('underscore');
+var _ = require('lodash');
 
 var meta = require('../meta');
 var db = require('../database');