Add series flag for `./nodebb build`

src/cli/index.js

@@ -186,8 +186,9 @@ program
 program
 	.command('build [targets...]')
 	.description('Compile static assets ' + '(JS, CSS, templates, languages, sounds)'.red)
-	.action(function (targets) {
+	.option('-s, --series', 'Run builds in series without extra processes')
-		require('./manage').build(targets.length ? targets : true);
+	.action(function (targets, options) {
+		require('./manage').build(targets.length ? targets : true, options);
 	})
 	.on('--help', function () {
 		require('./manage').buildTargets();

src/meta/build.js

@@ -134,13 +134,22 @@ function buildTargets(targets, parallel, callback) {
 	}, callback);
 }
 
-function build(targets, callback) {
+function build(targets, options, callback) {
+	if (!callback && typeof options === 'function') {
+		callback = options;
+		options = {};
+	} else if (!options) {
+		options = {};
+	}
+
 	if (targets === true) {
 		targets = allTargets;
 	} else if (!Array.isArray(targets)) {
 		targets = targets.split(',');
 	}
 
+	var parallel = !nconf.get('series') && !options.series;
+
 	targets = targets
 		// get full target name
 		.map(function (target) {
@@ -200,7 +209,6 @@ function build(targets, callback) {
 				require('./minifier').maxThreads = threads - 1;
 			}
 
-			var parallel = !nconf.get('series');
 			if (parallel) {
 				winston.info('[build] Building in parallel mode');
 			} else {