webpack: switch devtool to eval-source-map, use in development mode only

webpack.config.js

@@ -1,31 +1,38 @@
 const path = require('path');
 
-module.exports = {
-	entry: './src/index.ts',
-	devtool: 'inline-source-map',
-	devServer: {
-		contentBase: './dist'
-	},
-	module: {
-		rules: [
-			{
-				test: /\.ts$/,
-				use: 'ts-loader',
-				exclude: /node_modules/
-			},
+module.exports = (env, argv) => {
+	let config = {
+		entry: './src/index.ts',
+		devServer: {
+			contentBase: './dist'
+		},
+		module: {
+			rules: [
 				{
-				test: /\.(vs|fs)$/,
-				use: [
-				 'raw-loader'
-				]
-			}
-		]
-	},
-	resolve: {
-		extensions: [ ".ts", ".js" ]
-	},
-	output: {
-		filename: 'bundle.js',
-		path: path.resolve(__dirname, 'dist')
-	},
+					test: /\.ts$/,
+					use: 'ts-loader',
+					exclude: /node_modules/
+				},
+					{
+					test: /\.(vs|fs)$/,
+					use: [
+					 'raw-loader'
+					]
+				}
+			]
+		},
+		resolve: {
+			extensions: [ ".ts", ".js" ]
+		},
+		output: {
+			filename: 'bundle.js',
+			path: path.resolve(__dirname, 'dist')
+		},
+	};
+
+	if (argv.mode === 'development') {
+		config.devtool = 'eval-source-map';
+	}
+
+	return config;
 };