tidy up

src/api/build.ts

@@ -9,6 +9,7 @@ import read_template from '../core/read_template';
 import { CompileResult } from '../core/create_compilers/interfaces';
 import { noop } from './utils/noop';
 import validate_bundler from './utils/validate_bundler';
+import { copy_runtime } from './utils/copy_runtime';
 
 type Opts = {
 	cwd?: string;
@@ -49,6 +50,7 @@ export async function build({
 
 	rimraf.sync(path.join(output, '**/*'));
 	mkdirp.sync(output);
+	copy_runtime(output);
 
 	rimraf.sync(path.join(dest, '**/*'));
 	mkdirp.sync(`${dest}/client`);

src/api/dev.ts

@@ -15,6 +15,7 @@ import { copy_shimport } from './utils/copy_shimport';
 import { ManifestData, FatalEvent, ErrorEvent, ReadyEvent, InvalidEvent } from '../interfaces';
 import read_template from '../core/read_template';
 import { noop } from './utils/noop';
+import { copy_runtime } from './utils/copy_runtime';
 
 type Opts = {
 	cwd?: string,
@@ -147,6 +148,7 @@ class Watcher extends EventEmitter {
 
 		rimraf.sync(path.join(output, '**/*'));
 		mkdirp.sync(output);
+		copy_runtime(output);
 
 		rimraf.sync(dest);
 		mkdirp.sync(`${dest}/client`);

src/api/utils/copy_runtime.ts

@@ -0,0 +1,21 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import mkdirp from 'mkdirp';
+
+const runtime = [
+	'app.mjs',
+	'server.mjs',
+	'internal/shared.mjs',
+	'internal/Sapper.html',
+	'internal/layout.html'
+].map(file => ({
+	file,
+	source: fs.readFileSync(path.join(__dirname, `../runtime/${file}`), 'utf-8')
+}));
+
+export function copy_runtime(output: string) {
+	runtime.forEach(({ file, source }) => {
+		mkdirp.sync(path.dirname(`${output}/${file}`));
+		fs.writeFileSync(`${output}/${file}`, source);
+	});
+}