Add mix.dump() and mix.dumpWebpackConfig();

This is a debug command that will dump the generated Webpack config to
your console.

setup/webpack.mix.js

@@ -39,6 +39,7 @@ mix.js('src/app.js', 'dist/').sass('src/app.scss', 'dist/');
 // mix.webpackConfig({}); <-- Override webpack.config.js, without editing the file directly.
 // mix.babelConfig({}); <-- Merge extra Babel configuration (plugins, etc.) with Mix's default.
 // mix.then(function () {}) <-- Will be triggered each time Webpack finishes building.
+// mix.dump(); <-- Dump the generated webpack config object t the console.
 // mix.extend(name, handler) <-- Extend Mix's API with your own components.
 // mix.options({
 //   extractVueStyles: false, // Extract .vue component styling to file, rather than inline.

src/components/ComponentFactory.js

@@ -22,7 +22,8 @@ let components = [
     'Extract',
     'Notifications',
     'DisableNotifications',
-    'PurifyCss'
+    'PurifyCss',
+    'DumpWebpackConfig'
 ];
 
 class ComponentFactory {

src/components/DumpWebpackConfig.js

@@ -0,0 +1,20 @@
+class DumpWebpackConfig {
+    /**
+     * The optional name to be used when called by Mix.
+     * Defaults to the class name, lowercased.
+     */
+    name() {
+        return ['dumpWebpackConfig', 'dump'];
+    }
+
+    /**
+     * Register the component.
+     */
+    register() {
+        Mix.listen('configReady', config => {
+            console.log(JSON.stringify(config, null, 2));
+        });
+    }
+}
+
+module.exports = DumpWebpackConfig;

test/features/dumpwebpackconfig.js

@@ -0,0 +1,21 @@
+import mix from './helpers/setup';
+
+test.serial.cb('mix.dumpWebpackConfig()', t => {
+    let config;
+
+    console.log = webpackConfig => {
+        config = JSON.parse(webpackConfig);
+    };
+
+    mix.js(
+        'test/fixtures/fake-app/resources/assets/js/app.js',
+        'js'
+    ).dumpWebpackConfig();
+
+    compile(t, () => {
+        // Quick test to ensure that a webpack config object was logged.
+        t.truthy(config.context);
+        t.true(typeof config.module === 'object');
+        t.true(typeof config.plugins === 'object');
+    });
+});