Initial commit

js-packages/webpack-config/index.js

@@ -0,0 +1,55 @@
+const path = require('path');
+const webpack = require('webpack');
+
+module.exports = function(options = {}) {
+  const config = {
+    module: {
+      rules: [
+        {
+          test: /\.js$/,
+          exclude: /node_modules/,
+          use: {
+            loader: 'babel-loader',
+            options: {
+              presets: ['@babel/preset-env', '@babel/preset-react'],
+              plugins: [
+                ['@babel/plugin-transform-runtime'],
+                ['@babel/plugin-proposal-class-properties'],
+                ['@babel/plugin-transform-react-jsx', {pragma: 'm'}]
+              ]
+            }
+          }
+        }
+      ]
+    }
+  };
+
+  if (options.compat) {
+    config.resolve = config.resolve || {};
+    config.resolve.modules = [
+      path.resolve(process.cwd(), 'src'),
+      path.resolve(process.cwd(), '../lib'),
+      path.resolve(process.cwd(), 'node_modules'),
+      'node_modules'
+    ];
+  }
+
+  if (options.compatPrefix) {
+    config.resolve = config.resolve || {};
+    config.resolve.alias = {
+      [options.compatPrefix]: '.'
+    };
+
+    config.externals = [
+      function(context, request, callback) {
+        let matches;
+        if ((matches = /^flarum\/(.+)$/.exec(request)) && request.substr(0, options.compatPrefix.length) !== options.compatPrefix) {
+          return callback(null, 'root flarum.compat[\'' + matches[1] + '\']');
+        }
+        callback();
+      }
+    ];
+  }
+
+  return config;
+};