Trying out use(loader, options)

packages/neutrino-middleware-banner/index.js

@@ -1,7 +1,7 @@
 const { BannerPlugin } = require('webpack');
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => config
+module.exports = ({ config }, options) => config
   .plugin('banner')
   .use(BannerPlugin, merge({
     banner: `require('source-map-support').install();`,

packages/neutrino-middleware-chunk/index.js

@@ -1,7 +1,7 @@
 const { CommonsChunkPlugin } = require('webpack').optimize;
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => config
+module.exports = ({ config }, options) => config
   .plugin('chunk')
   .use(CommonsChunkPlugin, merge({
     minChunks: Infinity,

packages/neutrino-middleware-clean/index.js

@@ -1,7 +1,7 @@
 const CleanPlugin = require('clean-webpack-plugin');
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => {
+module.exports = ({ config }, options) => {
   const { paths, root } = merge({ paths: [], root: process.cwd() }, options);
 
   config

packages/neutrino-middleware-compile-loader/index.js

@@ -1,5 +1,5 @@
-module.exports = options => config => config.module
+module.exports = ({ config }, options) => config.module
   .rule('compile')
-  .test(/\.js$/)
+  .test(/\.jsx?$/)
   .include(...options.include)
   .loader('babel', require.resolve('babel-loader'), options.babel);

packages/neutrino-middleware-copy/index.js

@@ -1,7 +1,7 @@
 const CopyPlugin = require('copy-webpack-plugin');
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => {
+module.exports = ({ config }, options) => {
   const opts = merge({ patterns: [], options: {} }, options);
 
   config

packages/neutrino-middleware-env/index.js

@@ -1,5 +1,5 @@
 const { EnvironmentPlugin } = require('webpack');
 
-module.exports = (envs = []) => config => config
+module.exports = ({ config }, envs = []) => config
   .plugin('env')
-  .use(EnvironmentPlugin, ['NODE_ENV', ...envs]);
+  .use(EnvironmentPlugin, ['NODE_ENV', ...(Array.isArray(envs) ? envs : [])]);

packages/neutrino-middleware-eslint/index.js

@@ -5,7 +5,9 @@ const { join } = require('path');
 const IF_NOT_DEV = process.env.NODE_ENV !== 'development';
 const MODULES = join(__dirname, 'node_modules');
 
-module.exports = options => (config, neutrino) => {
+module.exports = (neutrino, options) => {
+  const { config } = neutrino;
+
   config.resolve.modules.add(MODULES);
   config.resolveLoader.modules.add(MODULES);
   config.module

packages/neutrino-middleware-font-loader/index.js

@@ -1,6 +1,6 @@
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => {
+module.exports = ({ config }, options) => {
   const { limit } = merge({ limit: '10000' }, options);
   const urlLoader = require.resolve('url-loader');
   const fileLoader = require.resolve('file-loader');

packages/neutrino-middleware-hot/index.js

@@ -1,3 +1,3 @@
 const { HotModuleReplacementPlugin } = require('webpack');
 
-module.exports = () => config => config.plugin('hot').use(HotModuleReplacementPlugin);
+module.exports = ({ config }) => config.plugin('hot').use(HotModuleReplacementPlugin);

packages/neutrino-middleware-html-loader/index.js

@@ -1,4 +1,4 @@
-module.exports = () => config => config.module
+module.exports = ({ config }) => config.module
   .rule('html')
   .test(/\.html$/)
   .loader('file', require.resolve('file-loader'), { name: '[name].[ext]' });

packages/neutrino-middleware-html-template/index.js

@@ -2,7 +2,7 @@ const HtmlPlugin = require('html-webpack-plugin');
 const template = require('html-webpack-template');
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => config
+module.exports = ({ config }, options) => config
   .plugin('html')
   .use(HtmlPlugin, merge({
     template,

packages/neutrino-middleware-image-loader/index.js

@@ -1,6 +1,6 @@
 const merge = require('deepmerge');
 
-module.exports = (options = {}) => config => {
+module.exports = ({ config }, options) => {
   const { limit } = merge({ limit: 8192 }, options);
   const urlLoader = require.resolve('url-loader');
 

packages/neutrino-middleware-loader-merge/index.js

@@ -0,0 +1,5 @@
+const merge = require('deepmerge');
+
+module.exports = (ruleId, loaderId) => ({ config }, options) => config.module
+  .rule(ruleId)
+  .loader(loaderId, props => merge(props, { options }));

packages/neutrino-middleware-loader-merge/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "neutrino-middleware-loader-merge",
+  "version": "5.0.0",
+  "description": "Neutrino middleware for merging options into existing ruleset loader options",
+  "main": "index.js",
+  "keywords": [
+    "neutrino",
+    "neutrino-middleware",
+    "rule",
+    "loader",
+    "merge"
+  ],
+  "author": "Eli Perelman <eli@eliperelman.com>",
+  "license": "MPL-2.0",
+  "repository": "mozilla-neutrino/neutrino-dev",
+  "homepage": "https://neutrino.js.org",
+  "bugs": "https://github.com/mozilla-neutrino/neutrino-dev/issues",
+  "dependencies": {
+    "deepmerge": "^1.3.2"
+  }
+}

packages/neutrino-middleware-loader-merge/yarn.lock

@@ -0,0 +1,7 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+deepmerge@^1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-1.3.2.tgz#1663691629d4dbfe364fa12a2a4f0aa86aa3a050"

packages/neutrino-middleware-minify/index.js

@@ -1,3 +1,3 @@
 const BabiliPlugin = require('babili-webpack-plugin');
 
-module.exports = () => config => config.plugin('minify').use(BabiliPlugin);
+module.exports = ({ config }) => config.plugin('minify').use(BabiliPlugin);

packages/neutrino-middleware-progress/index.js

@@ -1,3 +1,3 @@
 const ProgressBarPlugin = require('progress-bar-webpack-plugin');
 
-module.exports = () => config => config.plugin('progress').use(ProgressBarPlugin);
+module.exports = ({ config }) => config.plugin('progress').use(ProgressBarPlugin);

packages/neutrino-middleware-style-loader/index.js

@@ -1,4 +1,4 @@
-module.exports = () => config => config.module
+module.exports = ({ config }) => config.module
   .rule('style')
   .test(/\.css$/)
   .loader('style', require.resolve('style-loader'))

packages/neutrino-preset-airbnb-base/index.js

@@ -1,7 +1,7 @@
 const lint = require('neutrino-middleware-eslint');
 const { join } = require('path');
 
-module.exports = (config, neutrino) => neutrino.use(lint({
+module.exports = neutrino => neutrino.use(lint, {
   include: [join(process.cwd(), 'SRC')],
   eslint: {
     baseConfig: {
@@ -15,7 +15,7 @@ module.exports = (config, neutrino) => neutrino.use(lint({
       'object-curly-spacing': 'off',
 
       // require a capital letter for constructors
-      'babel/new-cap': ['error', {newIsCap: true}],
+      'babel/new-cap': ['error', { newIsCap: true }],
 
       // require padding inside curly braces
       'babel/object-curly-spacing': ['error', 'always'],
@@ -24,4 +24,4 @@ module.exports = (config, neutrino) => neutrino.use(lint({
       'babel/no-await-in-loop': 'error'
     }
   }
-}));
+});

packages/neutrino-preset-jest/package.json

@@ -21,7 +21,8 @@
     "eslint-plugin-jest": "^19.0.1",
     "jest": "^19.0.2",
     "jest-cli": "^19.0.2",
-    "lodash.clonedeep": "^4.5.0"
+    "lodash.clonedeep": "^4.5.0",
+    "neutrino-middleware-loader-merge": "^5.0.0"
   },
   "peerDependencies": {
     "neutrino": "^5.0.0"

packages/neutrino-preset-jest/src/index.js

@@ -4,6 +4,7 @@ const path = require('path');
 const merge = require('deepmerge');
 const os = require('os');
 const clone = require('lodash.clonedeep');
+const loaderMerge = require('neutrino-middleware-loader-merge');
 const pkg = require(path.join(process.cwd(), 'package.json'));
 
 function normalizeJestOptions(jestOptions, config, args) {
@@ -33,15 +34,7 @@ function normalizeJestOptions(jestOptions, config, args) {
   return options;
 }
 
-const compile = ({ babel }) => config => config.module
+module.exports = neutrino => {
-  .rule('compile')
-  .loader('babel', props => merge(props, { options: babel }));
-
-const lint = ({ eslint }) => config => config.module
-  .rule('lint')
-  .loader('eslint', props => merge(props, { options: eslint }));
-
-module.exports = (config, neutrino) => {
   const jestOptions = merge.all([
     {
       bail: true,
@@ -57,26 +50,25 @@ module.exports = (config, neutrino) => {
         '\\.(css|less|sass)$': require.resolve('./style-mock')
       }
     },
-    pkg.jest,
+    pkg.jest || {},
-    neutrino.options.jest
+    neutrino.options.jest || {}
   ]);
 
-  neutrino.use([
+  neutrino.use(loaderMerge('compile', 'babel'), {
-    compile({
+    env: {
-      babel: {
+      test: {
-        env: {
+        retainLines: true,
-          test: {
+        presets: [require.resolve('babel-preset-jest')],
-            retainLines: true,
+        plugins: [require.resolve('babel-plugin-transform-es2015-modules-commonjs')]
-            presets: [require.resolve('babel-preset-jest')],
-            plugins: [require.resolve('babel-plugin-transform-es2015-modules-commonjs')]
-          }
-        }
       }
-    })
+    }
-  ]);
+  });
 
   if (neutrino.config.module.rules.has('lint')) {
-    neutrino.use(lint({ eslint: { plugins: ['jest'], envs: ['jest'] } }));
+    neutrino.use(loaderMerge('lint', 'eslint'), {
+      plugins: ['jest'],
+      envs: ['jest']
+    });
   }
 
   neutrino.on('test', args => {

packages/neutrino-preset-karma/index.js

@@ -1,7 +1,7 @@
 const { Server } = require('karma');
 const merge = require('deepmerge');
 
-module.exports = (config, neutrino) => {
+module.exports = neutrino => {
   const defaults = {
     plugins: [
       require.resolve('karma-webpack'),
@@ -38,7 +38,7 @@ module.exports = (config, neutrino) => {
   neutrino.on('test', ({ files, watch }) => {
     const karma = merge.all([
       defaults,
-      neutrino.options.karma,
+      neutrino.options.karma || {},
       {
         singleRun: !watch,
         autoWatch: watch,

packages/neutrino-preset-mocha/package.json

@@ -16,7 +16,8 @@
     "babel-register": "^6.23.0",
     "change-case": "^3.0.1",
     "deepmerge": "^1.3.2",
-    "mocha": "^3.2.0"
+    "mocha": "^3.2.0",
+    "neutrino-middleware-loader-merge": "^5.0.0"
   },
   "peerDependencies": {
     "neutrino": "^5.0.0"

packages/neutrino-preset-mocha/src/index.js

@@ -1,27 +1,18 @@
 const mocha = require('./mocha');
 const merge = require('deepmerge');
+const loaderMerge = require('neutrino-middleware-loader-merge');
 
-module.exports = (config, neutrino) => {
+module.exports = neutrino => {
-  const defaults = {
+  neutrino.use(loaderMerge('compile', 'babel'), {
-    reporter: 'spec',
+    env: {
-    ui: 'tdd',
+      test: {
-    bail: true
+        plugins: [require.resolve('babel-plugin-transform-es2015-modules-commonjs')]
-  };
-
-  config.module
-    .rule('compile')
-    .loader('babel', props => merge(props, {
-      options: {
-        env: {
-          test: {
-            plugins: [require.resolve('babel-plugin-transform-es2015-modules-commonjs')]
-          }
-        }
       }
-    }));
+    }
+  });
 
   neutrino.on('test', ({ files }) => mocha(
-    merge(defaults, neutrino.options.mocha),
+    merge({ reporter: 'spec', ui: 'tdd', bail: true }, neutrino.options.mocha || {}),
     neutrino.config.module.rule('compile').loaders.get('babel').options,
     files
   ));

packages/neutrino-preset-node/index.js

@@ -3,9 +3,9 @@ const compile = require('neutrino-middleware-compile-loader');
 const copy = require('neutrino-middleware-copy');
 const progress = require('neutrino-middleware-progress');
 const clean = require('neutrino-middleware-clean');
+const loaderMerge = require('neutrino-middleware-loader-merge');
 const nodeExternals = require('webpack-node-externals');
 const { join } = require('path');
-const merge = require('deepmerge');
 
 const CWD = process.cwd();
 const SRC = join(CWD, 'src');
@@ -15,8 +15,10 @@ const PROJECT_MODULES = join(CWD, 'node_modules');
 const MODULES = join(__dirname, 'node_modules');
 const PKG = require(join(CWD, 'package.json'));
 
-module.exports = (config, neutrino) => {
+module.exports = neutrino => {
-  neutrino.use(compile({
+  const { config } = neutrino;
+
+  neutrino.use(compile, {
     include: [SRC, TEST],
     babel: {
       presets: [
@@ -28,7 +30,7 @@ module.exports = (config, neutrino) => {
         }]
       ]
     }
-  }));
+  });
 
   config.options.set('performance', { hints: false });
   config
@@ -68,60 +70,57 @@ module.exports = (config, neutrino) => {
     (PKG.devDependencies && 'source-map-support' in PKG.devDependencies);
 
   if (hasSourceMap) {
-    neutrino.use(banner());
+    neutrino.use(banner);
   }
 
   if (process.env.NODE_ENV !== 'development') {
-    neutrino.use([
+    neutrino.use(clean, { paths: [BUILD] });
-      copy({ patterns: [{ context: SRC, from: `**/*` }], options: { ignore: ['*.js*'] } }),
+    neutrino.use(progress);
-      progress(),
+    neutrino.use(copy, {
-      clean({ paths: [BUILD] })
+      patterns: [{ context: SRC, from: `**/*` }],
-    ])
+      options: { ignore: ['*.js*'] }
+    });
   }
 
   if (config.module.rules.has('lint')) {
-    config.module
+    neutrino.use(loaderMerge('lint', 'eslint'), {
-      .rule('lint')
+      envs: ['node'],
-      .loader('eslint', props => merge(props, {
+      rules: {
-        options: {
+        // enforce return after a callback
-          envs: ['node'],
+        'callback-return': 'off',
-          rules: {
-            // enforce return after a callback
-            'callback-return': 'off',
 
-            // require all requires be top-level
+        // require all requires be top-level
-            // http://eslint.org/docs/rules/global-require
+        // http://eslint.org/docs/rules/global-require
-            'global-require': 'error',
+        'global-require': 'error',
 
-            // enforces error handling in callbacks (node environment)
+        // enforces error handling in callbacks (node environment)
-            'handle-callback-err': 'off',
+        'handle-callback-err': 'off',
 
-            // Allow console in Node.js
+        // Allow console in Node.js
-            'no-console': 'off',
+        'no-console': 'off',
 
-            // disallow mixing regular variable and require declarations
+        // disallow mixing regular variable and require declarations
-            'no-mixed-requires': ['off', false],
+        'no-mixed-requires': ['off', false],
 
-            // disallow use of new operator with the require function
+        // disallow use of new operator with the require function
-            'no-new-require': 'error',
+        'no-new-require': 'error',
 
-            // disallow string concatenation with __dirname and __filename
+        // disallow string concatenation with __dirname and __filename
-            // http://eslint.org/docs/rules/no-path-concat
+        // http://eslint.org/docs/rules/no-path-concat
-            'no-path-concat': 'error',
+        'no-path-concat': 'error',
 
-            // disallow use of process.env
+        // disallow use of process.env
-            'no-process-env': 'off',
+        'no-process-env': 'off',
 
-            // disallow process.exit()
+        // disallow process.exit()
-            'no-process-exit': 'off',
+        'no-process-exit': 'off',
 
-            // restrict usage of specified node modules
+        // restrict usage of specified node modules
-            'no-restricted-modules': 'off',
+        'no-restricted-modules': 'off',
 
-            // disallow use of synchronous methods (off by default)
+        // disallow use of synchronous methods (off by default)
-            'no-sync': 'off'
+        'no-sync': 'off'
-          }
+      }
-        }
+    });
-      }));
   }
 };

packages/neutrino-preset-node/package.json

@@ -16,15 +16,15 @@
   "bugs": "https://github.com/mozilla-neutrino/neutrino-dev/issues",
   "dependencies": {
     "babel-preset-env": "^1.1.10",
-    "deepmerge": "^1.3.2",
     "exports-loader": "^0.6.4",
     "imports-loader": "^0.7.1",
+    "webpack-node-externals": "1.5.4",
     "neutrino-middleware-banner": "^5.0.0",
+    "neutrino-middleware-clean": "^5.0.0",
     "neutrino-middleware-compile-loader": "^5.0.0",
     "neutrino-middleware-copy": "^5.0.0",
-    "neutrino-middleware-progress": "^5.0.0",
+    "neutrino-middleware-loader-merge": "^5.0.0",
-    "neutrino-middleware-clean": "^5.0.0",
+    "neutrino-middleware-progress": "^5.0.0"
-    "webpack-node-externals": "1.5.4"
   },
   "peerDependencies": {
     "neutrino": "^5.0.0"

packages/neutrino-preset-node/yarn.lock

@@ -447,10 +447,6 @@ debug@^2.2.0:
   dependencies:
     ms "0.7.1"
 
-deepmerge@^1.3.2:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-1.3.2.tgz#1663691629d4dbfe364fa12a2a4f0aa86aa3a050"
-
 electron-to-chromium@^1.1.0, electron-to-chromium@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.2.2.tgz#e41bc9488c88e3cfa1e94bde28e8420d7d47c47c"

packages/neutrino-preset-react/index.js

@@ -1,11 +1,22 @@
+const loaderMerge = require('neutrino-middleware-loader-merge');
 const web = require('neutrino-preset-web');
-const merge = require('deepmerge');
 const { join } = require('path');
 
 const MODULES = join(__dirname, 'node_modules');
 
-module.exports = (config, neutrino) => {
+module.exports = neutrino => {
+  const { config } = neutrino;
+
   neutrino.use(web);
+  neutrino.use(loaderMerge('compile', 'babel'), {
+    presets: [require.resolve('babel-preset-react')],
+    plugins: [require.resolve('babel-plugin-transform-object-rest-spread')],
+    env: {
+      development: {
+        plugins: [require.resolve('react-hot-loader/babel')]
+      }
+    }
+  });
 
   config.resolve.modules.add(MODULES);
   config.resolve.extensions.add('.jsx');
@@ -18,21 +29,6 @@ module.exports = (config, neutrino) => {
       'react/lib/ReactContext': 'window'
     });
 
-  config.module
-    .rule('compile')
-    .test(/\.jsx?$/)
-    .loader('babel', props => merge(props, {
-      options: {
-        presets: [require.resolve('babel-preset-react')],
-        plugins: [require.resolve('babel-plugin-transform-object-rest-spread')],
-        env: {
-          development: {
-            plugins: [require.resolve('react-hot-loader/babel')]
-          }
-        }
-      }
-    }));
-
   if (process.env.NODE_ENV === 'development') {
     config
       .entry('index')
@@ -40,44 +36,35 @@ module.exports = (config, neutrino) => {
   }
 
   if (config.module.rules.has('lint')) {
-    config.module
+    neutrino.use(loaderMerge('lint', 'eslint'), {
-      .rule('lint')
+      plugins: ['react'],
-      .test(/\.jsx?$/)
+      baseConfig: {
-      .loader('eslint', props => merge(props, {
+        extends: ['plugin:react/recommended']
-        options: {
+      },
-          plugins: ['react'],
+      parserOptions: {
-          baseConfig: {
+        ecmaFeatures: {
-            extends: ['plugin:react/recommended']
+          experimentalObjectRestSpread: true
-          },
-          parserOptions: {
-            ecmaFeatures: {
-              experimentalObjectRestSpread: true
-            }
-          },
-          rules: {
-            'react/prop-types': ['off'],
-            'jsx-quotes': ['error', 'prefer-double'],
-            'class-methods-use-this': ['error', {
-              exceptMethods: [
-                'render',
-                'getInitialState',
-                'getDefaultProps',
-                'getChildContext',
-                'componentWillMount',
-                'componentDidMount',
-                'componentWillReceiveProps',
-                'shouldComponentUpdate',
-                'componentWillUpdate',
-                'componentDidUpdate',
-                'componentWillUnmount'
-              ]
-            }]
-          }
         }
-      }));
+      },
+      rules: {
+        'react/prop-types': ['off'],
+        'jsx-quotes': ['error', 'prefer-double'],
+        'class-methods-use-this': ['error', {
+          exceptMethods: [
+            'render',
+            'getInitialState',
+            'getDefaultProps',
+            'getChildContext',
+            'componentWillMount',
+            'componentDidMount',
+            'componentWillReceiveProps',
+            'shouldComponentUpdate',
+            'componentWillUpdate',
+            'componentDidUpdate',
+            'componentWillUnmount'
+          ]
+        }]
+      }
+    });
   }
-
-  // console.log(config.module.toConfig());
-  // console.log(neutrino.getWebpackOptions().module.rules);
-  // process.exit();
 };

packages/neutrino-preset-react/package.json

@@ -18,10 +18,10 @@
   "dependencies": {
     "babel-plugin-transform-object-rest-spread": "^6.23.0",
     "babel-preset-react": "^6.23.0",
-    "deepmerge": "^1.3.2",
     "eslint-plugin-react": "^6.10.0",
-    "neutrino-preset-web": "^5.0.0",
+    "react-hot-loader": "^3.0.0-beta.6",
-    "react-hot-loader": "^3.0.0-beta.6"
+    "neutrino-middleware-loader-merge": "^5.0.0",
+    "neutrino-preset-web": "^5.0.0"
   },
   "peerDependencies": {
     "neutrino": "^5.0.0"

packages/neutrino-preset-web/index.js

@@ -11,7 +11,7 @@ const copy = require('neutrino-middleware-copy');
 const progress = require('neutrino-middleware-progress');
 const clean = require('neutrino-middleware-clean');
 const minify = require('neutrino-middleware-minify');
-const merge = require('deepmerge');
+const loaderMerge = require('neutrino-middleware-loader-merge');
 const { join } = require('path');
 
 const CWD = process.cwd();
@@ -22,7 +22,7 @@ const PKG = require(join(CWD, 'package.json'));
 const PROJECT_MODULES = join(CWD, 'node_modules');
 const MODULES = join(__dirname, 'node_modules');
 
-const devServer = (options = {}) => config => config.devServer
+const devServer = ({ config }, options) => config.devServer
   .host(options.host)
   .port(parseInt(options.port))
   .https(options.https)
@@ -44,40 +44,40 @@ const devServer = (options = {}) => config => config.devServer
     warnings: true
   });
 
-module.exports = (config, neutrino) => {
+module.exports = neutrino => {
-  neutrino.use([
+  const { config } = neutrino;
-    env(),
+
-    htmlLoader(),
+  neutrino.use(env);
-    styleLoader(),
+  neutrino.use(htmlLoader);
-    fontLoader(),
+  neutrino.use(styleLoader);
-    imageLoader(),
+  neutrino.use(fontLoader);
-    htmlTemplate(),
+  neutrino.use(imageLoader);
-    compileLoader({
+  neutrino.use(htmlTemplate);
-      include: [SRC, TEST],
+  neutrino.use(compileLoader, {
-      babel: {
+    include: [SRC, TEST],
-        presets: [
+    babel: {
-          [require.resolve('babel-preset-env'), {
+      presets: [
-            modules: false,
+        [require.resolve('babel-preset-env'), {
-            useBuiltIns: true,
+          modules: false,
-            include: ['transform-regenerator'],
+          useBuiltIns: true,
-            targets: {
+          include: ['transform-regenerator'],
-              browsers: [
+          targets: {
-                'last 2 Chrome versions',
+            browsers: [
-                'last 2 Firefox versions',
+              'last 2 Chrome versions',
-                'last 2 Edge versions',
+              'last 2 Firefox versions',
-                'last 2 Opera versions',
+              'last 2 Edge versions',
-                'last 2 Safari versions',
+              'last 2 Opera versions',
-                'last 2 iOS versions'
+              'last 2 Safari versions',
-              ]
+              'last 2 iOS versions'
-            }
+            ]
-          }]
+          }
-        ]
+        }]
-      }
+      ]
-    })
+    }
-  ]);
+  });
 
   if (process.env.NODE_ENV !== 'test') {
-    neutrino.use(chunk());
+    neutrino.use(chunk);
   }
 
   config
@@ -108,14 +108,10 @@ module.exports = (config, neutrino) => {
     .set('tls', 'empty');
 
   if (config.module.rules.has('lint')) {
-    config.module
+    neutrino.use(loaderMerge('lint', 'eslint'), {
-      .rule('lint')
+      globals: ['Buffer'],
-      .loader('eslint', props => merge(props, {
+      envs: ['browser', 'commonjs']
-        options: {
+    });
-          globals: ['Buffer'],
-          envs: ['browser', 'commonjs']
-        }
-      }));
   }
 
   if (process.env.NODE_ENV === 'development') {
@@ -127,10 +123,13 @@ module.exports = (config, neutrino) => {
       (PKG.neutrino && PKG.neutrino.config && PKG.neutrino.config.devServer && PKG.neutrino.config.devServer.port) ||
       5000;
 
-    neutrino.use([
+    neutrino.use(hot);
-      devServer({ host, port, https: protocol === 'https', contentBase: SRC }),
+    neutrino.use(devServer, {
-      hot()
+      host,
-    ]);
+      port,
+      https: protocol === 'https',
+      contentBase: SRC
+    });
 
     config
       .devtool('eval')
@@ -138,13 +137,13 @@ module.exports = (config, neutrino) => {
         .add(`webpack-dev-server/client?${protocol}://${host}:${port}/`)
         .add('webpack/hot/dev-server');
   } else {
-    neutrino.use([
+    neutrino.use(clean, { paths: [BUILD] });
-      copy({ patterns: [{ context: SRC, from: `**/*` }], options: { ignore: ['*.js*'] } }),
+    neutrino.use(progress);
-      progress(),
+    neutrino.use(minify);
-      clean({ paths: [BUILD] }),
+    neutrino.use(copy, {
-      minify()
+      patterns: [{ context: SRC, from: `**/*` }],
-    ]);
+      options: { ignore: ['*.js*'] }
-
+    });
     config.output.filename('[name].[chunkhash].bundle.js');
   }
 };

packages/neutrino-preset-web/package.json

@@ -16,7 +16,6 @@
   "bugs": "https://github.com/mozilla-neutrino/neutrino-dev/issues",
   "dependencies": {
     "babel-preset-env": "^1.1.10",
-    "deepmerge": "^1.3.2",
     "exports-loader": "^0.6.4",
     "imports-loader": "^0.7.1",
     "webpack": "^2.2.1",
@@ -30,6 +29,7 @@
     "neutrino-middleware-html-loader": "^5.0.0",
     "neutrino-middleware-html-template": "^5.0.0",
     "neutrino-middleware-hot": "^5.0.0",
+    "neutrino-middleware-loader-merge": "^5.0.0",
     "neutrino-middleware-image-loader": "^5.0.0",
     "neutrino-middleware-progress": "^5.0.0",
     "neutrino-middleware-minify": "^5.0.0",

packages/neutrino-preset-web/yarn.lock

@@ -862,10 +862,6 @@ deep-extend@~0.4.0:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.1.tgz#efe4113d08085f4e6f9687759810f807469e2253"
 
-deepmerge@^1.3.2:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-1.3.2.tgz#1663691629d4dbfe364fa12a2a4f0aa86aa3a050"
-
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"

packages/neutrino/src/neutrino.js

@@ -12,12 +12,8 @@ class Neutrino extends EventEmitter {
     this.options = options;
   }
 
-  use(presets = []) {
+  use(preset, options = {}) {
-    if (!Array.isArray(presets)) {
+    preset(this, options);
-      presets = [presets];
-    }
-
-    presets.map(preset => preset(this.config, this));
   }
 
   handleErrors(err, stats) {