fix: inline svelte-app-utils lib (#15)

package.json

@@ -25,8 +25,8 @@
   "main": "dist/index.js",
   "version": "0.3.2",
   "dependencies": {
-    "@sveltejs/app-utils": "1.0.0-next.0",
-    "joi": "^17.3.0"
+    "@sveltejs/app-utils": "^1.0.0-next.1",
+    "joi": "^17.4.0"
   },
   "devDependencies": {
     "@commitlint/cli": "^11.0.0",
@@ -37,6 +37,7 @@
     "husky": "^5.0.8",
     "microbundle": "^0.13.0",
     "rewire": "^5.0.0",
+    "rimraf": "^3.0.2",
     "semantic-release": "^17.4.0",
     "xo": "^0.37.1"
   },
@@ -48,7 +49,11 @@
     "fix": "xo --fix",
     "test": "xo && ava",
     "dev": "microbundle watch --target node",
-    "build": "microbundle --target node && mkdir -p dist/files && cp -p src/files/cloud_run_package.json dist/files/package.json && cp -p src/files/handler.js dist/files/handler.js"
+    "prebuild": "rimraf dist",
+    "build:cli": "microbundle --target node --external none",
+    "build:handler": "microbundle --target node --format es,cjs --external none --entry src/files/handler.js --output dist/files/handler.js",
+    "build:cloudrun": "mkdir -p dist/files && cp -p src/files/cloud_run_package.json dist/files/package.json",
+    "build": "npm run build:cli && npm run build:handler && npm run build:cloudrun"
   },
   "engines": {
     "node": ">=10.0.0"

src/files/handler.js

@@ -1,7 +1,9 @@
-const {get_body: getBody} = require('@sveltejs/app-utils/http');
-const app = require('./app.cjs');
+// Deps - inlined
+import {get_body as getBody} from '@sveltejs/app-utils/http';
 
-exports.sveltekitServer = async (request, response) => {
+const app = require('./app.js');
+
+const svelteKit = async (request, response) => {
 	const {pathname, query = ''} = new URL(
 		request.url || '',
 		`https://${request.headers.host}/`
@@ -23,3 +25,5 @@ exports.sveltekitServer = async (request, response) => {
 
 	return response.writeHead(404).end();
 };
+
+export default svelteKit;

src/index.js

@@ -1,8 +1,11 @@
-const {existsSync, readFileSync} = require('fs');
+// Deps - installed
+const fs = require('fs');
 const path = require('path');
-const {copy} = require('@sveltejs/app-utils/files');
 const Joi = require('joi');
 
+// Deps - inlined
+import {copy} from '@sveltejs/app-utils/files';
+
 // If valid config returns the config as JS Object, else throws error
 function validateFirebaseConfig(firebaseJson, hostingSite, sourceRewriteMatch) {
 	const schema = Joi.object().keys({
@@ -118,9 +121,9 @@ for either a Function or Cloud Run service.
 }
 
 function getFile(filepath) {
-	if (existsSync(filepath)) {
+	if (fs.existsSync(filepath)) {
 		try {
-			return readFileSync(filepath, 'utf-8');
+			return fs.readFileSync(filepath, 'utf-8');
 		} catch (error) {
 			throw new Error(`Error reading ${filepath}: ${error.message}`);
 		}
@@ -194,7 +197,7 @@ async function adapter(builder, {
 				.replace(/\W/g, '')
 				.concat('Server');
 			if (
-				existsSync(functionsIndexPath) &&
+				fs.existsSync(functionsIndexPath) &&
 				!getFile(functionsIndexPath).includes(`${cloudFunctionName} =`)
 			) {
 				builder.log.warn(