This moves our eslint config in .eslint.js, which allows us to use conditionals in the config file itself, significantly simpliying rule creation. For small-scale differences, this seems to be the simplest solution.

resources/assets/build/webpack.config.js

@@ -41,10 +41,7 @@ let webpackConfig = {
         enforce: 'pre',
         test: /\.js$/,
         include: config.paths.assets,
-        loader: 'eslint-loader',
-        options: {
-          configFile: config.env.production ? config.paths.eslintProd : null,
-        },
+        use: 'eslint',
       },
       {
         enforce: 'pre',