move config into single file, add errors to help people migrate

test/app/src/manifest/service-worker.js

@@ -1,5 +1,5 @@
 // This file is generated by Sapper — do not edit it!
-export const timestamp = 1537372892007;
+export const timestamp = 1537382276284;
 
 export const files = [
 	"favicon.png",

test/app/webpack.config.js

@@ -0,0 +1,77 @@
+const webpack = require('webpack');
+const config = require('../../config/webpack.js');
+const sapper_pkg = require('../../package.json');
+
+const mode = process.env.NODE_ENV;
+const isDev = mode === 'development';
+
+module.exports = {
+	client: {
+		entry: config.client.entry(),
+		output: config.client.output(),
+		resolve: {
+			extensions: ['.js', '.html']
+		},
+		module: {
+			rules: [
+				{
+					test: /\.html$/,
+					exclude: /node_modules/,
+					use: {
+						loader: 'svelte-loader',
+						options: {
+							hydratable: true,
+							cascade: false,
+							store: true
+						}
+					}
+				}
+			]
+		},
+		mode,
+		plugins: [
+			isDev && new webpack.HotModuleReplacementPlugin()
+		].filter(Boolean),
+		devtool: isDev && 'inline-source-map'
+	},
+
+	server: {
+		entry: config.server.entry(),
+		output: config.server.output(),
+		target: 'node',
+		resolve: {
+			extensions: ['.js', '.html']
+		},
+		externals: [].concat(
+			Object.keys(sapper_pkg.dependencies),
+			Object.keys(sapper_pkg.devDependencies)
+		),
+		module: {
+			rules: [
+				{
+					test: /\.html$/,
+					exclude: /node_modules/,
+					use: {
+						loader: 'svelte-loader',
+						options: {
+							css: false,
+							cascade: false,
+							store: true,
+							generate: 'ssr'
+						}
+					}
+				}
+			]
+		},
+		mode,
+		performance: {
+			hints: false // it doesn't matter if server.js is large
+		}
+	},
+
+	serviceworker: {
+		entry: config.serviceworker.entry(),
+		output: config.serviceworker.output(),
+		mode
+	}
+};

test/app/webpack/client.config.js

@@ -1,34 +0,0 @@
-const config = require('../../../config/webpack.js');
-const webpack = require('webpack');
-
-const mode = process.env.NODE_ENV;
-const isDev = mode === 'development';
-
-module.exports = {
-	entry: config.client.entry(),
-	output: config.client.output(),
-	resolve: {
-		extensions: ['.js', '.html']
-	},
-	module: {
-		rules: [
-			{
-				test: /\.html$/,
-				exclude: /node_modules/,
-				use: {
-					loader: 'svelte-loader',
-					options: {
-						hydratable: true,
-						cascade: false,
-						store: true
-					}
-				}
-			}
-		]
-	},
-	mode,
-	plugins: [
-		isDev && new webpack.HotModuleReplacementPlugin()
-	].filter(Boolean),
-	devtool: isDev && 'inline-source-map'
-};

test/app/webpack/server.config.js

@@ -1,36 +0,0 @@
-const config = require('../../../config/webpack.js');
-const sapper_pkg = require('../../../package.json');
-
-module.exports = {
-	entry: config.server.entry(),
-	output: config.server.output(),
-	target: 'node',
-	resolve: {
-		extensions: ['.js', '.html']
-	},
-	externals: [].concat(
-		Object.keys(sapper_pkg.dependencies),
-		Object.keys(sapper_pkg.devDependencies)
-	),
-	module: {
-		rules: [
-			{
-				test: /\.html$/,
-				exclude: /node_modules/,
-				use: {
-					loader: 'svelte-loader',
-					options: {
-						css: false,
-						cascade: false,
-						store: true,
-						generate: 'ssr'
-					}
-				}
-			}
-		]
-	},
-	mode: process.env.NODE_ENV,
-	performance: {
-		hints: false // it doesn't matter if server.js is large
-	}
-};

test/app/webpack/service-worker.config.js

@@ -1,7 +0,0 @@
-const config = require('../../../config/webpack.js');
-
-module.exports = {
-	entry: config.serviceworker.entry(),
-	output: config.serviceworker.output(),
-	mode: process.env.NODE_ENV
-};