lerna

webpack.shared.js

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+const production = process.env.NODE_ENV === "production";
+const TerserPlugin = require('terser-webpack-plugin');
+const nodeExternals = require('webpack-node-externals');
+const path = require('path');
+
+module.exports = (directory) => {
+	return {
+		entry: path.join(directory, 'index.ts'),
+		output: {
+			filename: "index.js",
+			path: path.join(directory, 'dist'),
+			libraryTarget: "umd",
+		},
+		externals: [
+			nodeExternals({modulesDir: path.join(directory, 'node_modules')}),
+			nodeExternals({modulesDir: path.join(path.join(directory, '..'), 'node_modules')})
+		],
+		module: {
+			rules: [
+				{
+					test: /\.scss$/,
+					use: ['style-loader', 'css-loader', 'sass-loader']
+				},
+				{
+					enforce: "pre",
+					test: /\.js$/,
+					loader: "source-map-loader"
+				},
+				{
+					test: /\.tsx?$/,
+					loader: "ts-loader"
+				}
+			]
+		},
+		resolve: {
+			extensions: [".tsx", ".ts", ".js"]
+		},
+		devtool: production ? "source-map" : "cheap-module-source-map",
+		mode: production ? "production" : "development",
+		optimization: {
+			minimizer: [new TerserPlugin()],
+		}
+	}
+}