Use gulp eslint (#354)

gulpfile.babel.js

@@ -14,6 +14,15 @@ import merge from 'merge-stream';
 
 const $ = gulpLoadPlugins();
 
+gulp.task('lint', () => {
+  return gulp.src([
+    'static/**/*.js'
+  ])
+    .pipe($.eslint())
+    .pipe($.eslint.format())
+    .pipe($.eslint.failAfterError());
+});
+
 // Compile and automatically prefix stylesheets
 gulp.task('styles', () => {
   const AUTOPREFIXER_BROWSERS = [
@@ -81,6 +90,7 @@ gulp.task('clean', () => {
 gulp.task('default', ['clean'], cb =>
   runSequence(
     'styles',
+    'lint',
     'vulcanize',
     'scripts',
     cb

package.json

@@ -9,7 +9,7 @@
   "scripts": {
     "postinstall": "npm run deps; npm run build",
     "deps": "rm -rf static/bower_components; bower install",
-    "lint": "eslint .",
+    "lint": "gulp lint",
     "build": "gulp",
     "deploy": "./scripts/deploy_site.sh"
   },
@@ -24,13 +24,13 @@
     "babel-core": "^6.10.4",
     "babel-preset-es2015": "^6.9.0",
     "del": "^2.2.1",
-    "eslint": "^3.1.1",
     "eslint-config-google": "^0.6.0",
     "grunt": "^0.4.5",
     "grunt-appengine": "^0.1.5",
     "gulp": "^3.9.1",
     "gulp-autoprefixer": "^3.1.0",
     "gulp-crisper": "^1.1.0",
+    "gulp-eslint": "^3.0.1",
     "gulp-if": "^2.0.1",
     "gulp-load-plugins": "^1.2.4",
     "gulp-rename": "^1.2.2",