* change gulp watch task.

gulpfile.js

@@ -440,17 +440,7 @@ gulp.task('build', function(callback) {
     }, type);
 });
 
-['dist', 'doc', 'theme', 'lib'].forEach(function(name) {
-    var depsTasks = (name == 'dist' || name == 'doc') ? ['minJSON'] : [];
-    gulp.task(name, depsTasks, function(callback) {
-        console.log('  BEGIN >> ' + (' Build ' + name.bold + ' ').inverse);
-        buildBundle(name == 'lib' ? 'seperate' : name, function() {
-            console.log('    END >> ' + (' Build ' + name.bold + ' completed. ').green.inverse);
-            callback();
-        });
-    });
-
-    gulp.task('watch:' + name, function() {
+function startWatchSrc(name) {
     if(name === 'lib') name = 'seperate';
     gulp.watch(["./src/less/**/*"], function(event) {
         buildBundle(name, function() {
@@ -470,6 +460,26 @@ gulp.task('build', function(callback) {
             console.log('         √ '.green + (' WATCH ' + name.bold + ' COMPLETED. ').yellow.inverse);
         }, 'resource');
     });
+}
+
+gulp.task('watch', function(callback) {
+    var name = process.argv[3] || 'dist';
+    if(name && name[0] === '-') name = name.substr(1);
+    startWatchSrc(name);
+});
+
+['dist', 'doc', 'theme', 'lib'].forEach(function(name) {
+    var depsTasks = (name == 'dist' || name == 'doc') ? ['minJSON'] : [];
+    gulp.task(name, depsTasks, function(callback) {
+        console.log('  BEGIN >> ' + (' Build ' + name.bold + ' ').inverse);
+        buildBundle(name == 'lib' ? 'seperate' : name, function() {
+            console.log('    END >> ' + (' Build ' + name.bold + ' completed. ').green.inverse);
+            callback();
+        });
+    });
+
+    gulp.task('watch:' + name, function() {
+        startWatchSrc(name);
     });
 });