gulp-jsbeautifierを導入

gulpfile.js

@@ -0,0 +1,23 @@
+'use strict';
+
+var gulp = require('gulp');
+var prettify = require('gulp-jsbeautifier');
+
+var sources = ['**/*.js', '**/*.css', '**/*.html', '!node_modules/**'];
+
+gulp.task('prettify', function() {
+  gulp.src(sources)
+    .pipe(prettify({
+      html: {
+        indentSize: 2
+      },
+      css: {
+        indentSize: 2
+      },
+      js: {
+        indentSize: 2,
+        braceStyle: "end-expand"
+      }
+    }))
+    .pipe(gulp.dest('.'));
+});