Add Biome tool and CI checks for linting etc. (#3)

* add linter

* run lint

* add ci workflow for lint checks etc.

* rename ci job

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+jobs:
+  ci:
+    timeout-minutes: 60
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-node@v3
+      with:
+        node-version: 18
+
+    - name: Install application dependencies
+      run: npm ci
+
+    - name: Run biome ci process
+      run: npm run ci

biome.json

@@ -0,0 +1,27 @@
+{
+	"$schema": "https://biomejs.dev/schemas/1.5.2/schema.json",
+	"organizeImports": {
+		"enabled": true
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	},
+	"formatter": {
+		"enabled": true,
+		"indentStyle": "space",
+		"indentWidth": 4
+	},
+	"javascript": {
+		"formatter": {
+			"enabled": true,
+			"jsxQuoteStyle": "single",
+			"semicolons": "always",
+			"bracketSpacing": false,
+			"bracketSameLine": false,
+			"quoteStyle": "single"
+		}
+	}
+}

package.json

@@ -4,6 +4,7 @@
   "description": "",
   "main": "index.js",
   "devDependencies": {
+    "@biomejs/biome": "1.5.2",
     "@kitajs/ts-html-plugin": "^1.3.3",
     "@types/express": "^4.17.21",
     "@types/express-ws": "^3.0.4",
@@ -24,6 +25,8 @@
   "scripts": {
     "start": "node dist/server/index.js",
     "build": "ts-node esbuild.config.ts",
+    "lint": "biome lint server",
+    "ci": "biome ci server",
     "start-coverage": "nyc --reporter=lcov --reporter=text ts-node server/src/index.ts",
     "dev": "ts-node-dev --respawn --transpile-only server/src/index.ts",
     "build-coverage": "COVERAGE=true npm run build",

server/src/express_app.ts

@@ -1,18 +1,20 @@
 import express, {Router} from 'express';
 import expressWs from 'express-ws';
 
+import {initJamRouterWebsocket, jamRouter, renderJamPage} from './modules/jam';
+import {loginRouter, renderLoginPage} from './modules/login';
 import {AppDependencies} from './types/app_dependencies';
 import {renderLayout} from './views/layout';
-import {loginRouter, renderLoginPage} from './modules/login';
-import {initJamRouterWebsocket, jamRouter, renderJamPage} from './modules/jam';
 
-const handlePage = (renderer: () => string | Promise<string>): express.Handler => async (req, res, next) => {
-    const page = await Promise.resolve(renderer());
-    const fullContent = renderLayout(page);
+const handlePage =
+    (renderer: () => string | Promise<string>): express.Handler =>
+    async (req, res, next) => {
+        const page = await Promise.resolve(renderer());
+        const fullContent = renderLayout(page);
 
-    res.setHeader('Content-Type', 'text/html');
-    res.send(fullContent);
-};
+        res.setHeader('Content-Type', 'text/html');
+        res.send(fullContent);
+    };
 
 export const initApp = (deps: AppDependencies) => {
     const app = expressWs(express()).app;