refactor: faster file watcher

packages/cli/package.json

@@ -30,6 +30,7 @@
   ],
   "dependencies": {
     "@hono/node-server": "^1.7.0",
+    "@parcel/watcher": "^2.4.0",
     "@scalar/api-reference": "^1.15.1",
     "@seriousme/openapi-schema-validator": "^2.1.6",
     "commander": "^12.0.0",

packages/cli/petstore.json

@@ -39,7 +39,7 @@
     "/pet": {
       "put": {
         "tags": ["pet"],
-        "summary": "Update an existing pet",
+        "summary": "Hello iuapsd",
         "description": "Update an existing pet by Id",
         "operationId": "updatePet",
         "requestBody": {

packages/cli/src/utils/watchFile.ts

@@ -1,24 +1,31 @@
+import watcher from '@parcel/watcher'
 import fs from 'node:fs'
+import path from 'node:path'
 
 /**
- * Watch a file for changes and call a callback when it does.
+ * Watch a foobar for changes and call a callback when it does.
  */
 export async function watchFile(
   file: string,
   callback: () => void,
   options?: { immediate?: boolean },
 ) {
-  console.log(`[INFO] Watch ${file}`)
+  const absoluteFilePath = path.join(process.cwd(), file)
 
   // Check if file exists
-  if (!fs.existsSync(file)) {
-    throw new Error(`File ${file} does not exist`)
+  if (!fs.existsSync(absoluteFilePath)) {
+    throw new Error(`File ${absoluteFilePath} does not exist`)
   }
 
   // Watch the file for changes
-  fs.watchFile(file, async () => {
-    // Call the callback
-    callback()
+  console.log(`[INFO] Watch ${file}`)
+
+  // Start the watcher
+  await watcher.subscribe(process.cwd(), (err, events) => {
+    // Match the file path
+    if (events.some((event) => event.path === absoluteFilePath)) {
+      callback()
+    }
   })
 
   // Call the callback immediately