feat: implement dev/setup script; add it to npm scripts with command setup

Author: babblebey

dev/setup.js

@@ -0,0 +1,29 @@
+import crypto from "node:crypto";
+import fs from "node:fs/promises";
+import registerGitHubApp from "./lib/register-github-app/index.js";
+
+// register app and retrieve credentials
+const appCredentials = await registerGitHubApp({
+  // name of your app
+  name: "jargons.dev-app-for-",
+  url: "https://github.com/babblebey/jargons.dev/CONTRIBUTING.md",
+  default_permissions: {
+    issues: "write",
+  }
+});
+
+// convert private key to pkcs8 format (recommended for better cross plattform support)
+const privateKeyPKCS8 = String(
+  crypto.createPrivateKey(appCredentials.pem).export({
+    type: "pkcs8",
+    format: "pem",
+  }),
+);
+const singleLinePrivateKey = privateKeyPKCS8.trim().replace(/\n/g, "\\n");
+
+// write credentials into `.env` file
+const envFileTemp = await fs.readFile(".env.example", "utf-8");
+const newEnvFileContent = envFileTemp
+  .replace(/^GITHUB_APP_ID=.*$/m, `GITHUB_APP_ID=${appCredentials.id}`)
+  .replace(/^GITHUB_APP_PRIVATE_KEY=.*$/m, `GITHUB_APP_PRIVATE_KEY="${singleLinePrivateKey}"`)
+await fs.writeFile(".env", newEnvFileContent);

package.json

@@ -8,7 +8,8 @@
     "start": "astro dev",
     "build": "astro build",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "setup": "node dev/setup.js"
   },
   "keywords": [],
   "author": "",