app.js cleanup

app.js

@@ -16,23 +16,21 @@
 	along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-(function () {
+
 "use strict";
 
-	// Configuration setup
 var nconf = require('nconf');
 nconf.argv().env();
 
 var fs = require('fs'),
-		async = require('async'),
+	os = require('os'),
 	semver = require('semver'),
 	winston = require('winston'),
 	path = require('path'),
 	pkg = require('./package.json'),
-		utils = require('./public/src/utils.js'),
-		meta;
+	utils = require('./public/src/utils.js');
+
 
-	// Runtime environment
 global.env = process.env.NODE_ENV || 'production';
 
 winston.remove(winston.transports.Console);
@@ -50,11 +48,13 @@
 	winston.error(err.stack);
 };
 
+if(os.platform() === 'linux') {
 	require('child_process').exec('/usr/bin/which convert', function(err, stdout, stderr) {
 		if(err || !stdout) {
 			winston.warn('Couldn\'t find convert. Did you install imagemagick?');
 		}
 	});
+}
 
 // Log GNU copyright info along with server info
 winston.info('NodeBB v' + pkg.version + ' Copyright (C) 2013 DesignCreatePlay Inc.');
@@ -64,11 +64,20 @@
 
 
 if (!nconf.get('help') && !nconf.get('setup') && !nconf.get('install') && !nconf.get('upgrade') && fs.existsSync(__dirname + '/config.json')) {
-		// Load server-side configs
+	start();
+} else if (nconf.get('setup') || nconf.get('install') || !fs.existsSync(__dirname + '/config.json')) {
+	setup();
+} else if (nconf.get('upgrade')) {
+	upgrade();
+} else/* if (nconf.get('help') */{
+	displayHelp();
+};
+
+
+function start() {
 	nconf.file({
 		file: __dirname + '/config.json'
 	});
-		meta = require('./src/meta');
 
 	nconf.set('url', nconf.get('base_url') + (nconf.get('use_port') ? ':' + nconf.get('port') : '') + nconf.get('relative_path'));
 	nconf.set('upload_url', path.join(path.sep, nconf.get('relative_path'), 'uploads', path.sep));
@@ -90,6 +99,8 @@
 		winston.error('nodebb-theme-vanilla is out of date - please run npm install.');
 	}
 
+	var meta = require('./src/meta');
+
 	require('./src/database').init(function(err) {
 		meta.configs.init(function () {
 
@@ -114,7 +125,6 @@
 
 					var customTemplates = meta.config['theme:templates'] ? path.join(__dirname, 'node_modules', meta.config['theme:id'], meta.config['theme:templates']) : false;
 
-
 					utils.walk(path.join(__dirname, 'public/templates'), function (err, tplsToLoad) {
 						templates.init(tplsToLoad, customTemplates);
 					});
@@ -134,8 +144,9 @@
 			});
 		});
 	});
-	} else if (nconf.get('setup') || nconf.get('install') || !fs.existsSync(__dirname + '/config.json')) {
-		// New install, ask setup questions
+}
+
+function setup() {
 	if (nconf.get('setup')) {
 		winston.info('NodeBB Setup Triggered via Command Line');
 	} else {
@@ -146,8 +157,7 @@
 		file: __dirname + '/config.json'
 	});
 
-		var templates = require('./public/src/templates'),
-			install = require('./src/install');
+	var install = require('./src/install');
 
 	winston.info('Welcome to NodeBB!');
 	winston.info('This looks like a new installation, so you\'ll have to answer a few questions about your environment before we can proceed.');
@@ -162,19 +172,23 @@
 
 		process.exit();
 	});
+}
 
-	} else if (nconf.get('upgrade')) {
+function upgrade() {
 	nconf.file({
 		file: __dirname + '/config.json'
 	});
-		require('./src/database').init(function(err) {
-			meta = require('./src/meta.js');
 
+	var meta = require('./src/meta');
+
+	require('./src/database').init(function(err) {
 		meta.configs.init(function () {
 			require('./src/upgrade').upgrade();
 		});
 	});
-	} else/* if (nconf.get('help') */{
+}
+
+function displayHelp() {
 	winston.info('Usage: node app [options] [arguments]');
 	winston.info('       [NODE_ENV=development | NODE_ENV=production] node app [--start] [arguments]');
 	winston.info('');
@@ -183,5 +197,4 @@
 	winston.info('  --setup             configure your environment and setup NodeBB');
 	winston.info('  --upgrade           upgrade NodeBB, first read: github.com/designcreateplay/NodeBB/wiki/Upgrading-NodeBB');
 	winston.info('  --start             manually start NodeBB (default when no options are given)');
-	};
-}());
+}