Add sourcemaps & minification

gulpfile.js

@@ -1,14 +1,22 @@
 const gulp = require('gulp');
 const babel = require('gulp-babel');
+const sourcemaps = require('gulp-sourcemaps');
+const uglify = require('gulp-uglify');
+const rename = require('gulp-rename');
 
 gulp.task('es6', () => {
 	return gulp.src('src/app.js')
+		.pipe(sourcemaps.init())
 		.pipe(babel({
 			presets: ['es2015']
 		}))
+		.pipe(uglify())
+		.pipe(rename('app.min.js'))
+		.pipe(sourcemaps.write('.'))
 		.pipe(gulp.dest('build'));
 });
 
 gulp.task('default', () => {
-	gulp.watch('src/app.js', ['es6'])
+	gulp.start('es6');
+	gulp.watch('src/*.*', ['es6'])
 });

package.json

@@ -19,6 +19,10 @@
   "devDependencies": {
     "babel-preset-es2015": "^6.9.0",
     "gulp": "^3.9.1",
-    "gulp-babel": "^6.1.2"
-  }
+    "gulp-babel": "^6.1.2",
+    "gulp-rename": "^1.2.2",
+    "gulp-sourcemaps": "^1.6.0",
+    "gulp-uglify": "^1.5.4"
+  },
+  "dependencies": {}
 }