limits sourcemaps to dev; also uglifies the js for prod

gulpfile.js

@@ -3,9 +3,14 @@ const uswds = require("@uswds/compile");
 
 var browserify = require('browserify');
 var sourcemaps = require('gulp-sourcemaps');
+var uglify = require('gulp-uglify')
+var gulpif = require('gulp-if');
 var source = require('vinyl-source-stream');
 var buffer = require('vinyl-buffer');
 
+const isProd = process.env.NODE_ENV == 'production';
+
+console.log(process.env.NODE_ENV)
 // file path vars
 const paths = {
     js: {
@@ -15,16 +20,17 @@ const paths = {
 }
 
 function jsTask() {
-    return browserify(`${paths.js.src}`, { debug: true })
+    return browserify(`${paths.js.src}`)
         .transform('babelify', {
             presets: ['@babel/preset-env'],
             plugins: ['@babel/plugin-transform-runtime']
         })
         .bundle()
         .pipe(source(paths.js.dest))
         .pipe(buffer())
-        .pipe(sourcemaps.init({ loadMaps: true }))
-        .pipe(sourcemaps.write('.'))
+        .pipe(gulpif(isProd, uglify()))
+        .pipe(gulpif(!isProd, sourcemaps.init({ loadMaps: true })))
+        .pipe(gulpif(!isProd, sourcemaps.write('.')))
         .pipe(dest("_site"));
 };
 

package.json

@@ -47,8 +47,10 @@
     "babelify": "^10.0.0",
     "browserify": "^17.0.1",
     "gulp": "^5.0.0",
+    "gulp-if": "^3.0.0",
     "gulp-sourcemaps": "^3.0.0",
     "gulp-terser-js": "^5.2.2",
+    "gulp-uglify": "^3.0.2",
     "vinyl-buffer": "^1.0.1",
     "vinyl-source-stream": "^2.0.0"
   }