perf: include less files in typescript checker (#82)

Author: farnabaz

package.json

@@ -32,9 +32,10 @@
     "dev": "nuxi dev playground",
     "dev:build": "nuxi build playground",
     "dev:generate": "nuxi generate playground",
-    "dev:prepare": "nuxt-module-build --stub && nuxi prepare playground",
+    "dev:prepare": "nuxt-module-build build --stub && nuxi prepare playground",
     "lint": "eslint ",
-    "test": "vitest",
+    "test": "vitest run",
+    "verify": "pnpm dev:prepare && pnpm lint && pnpm test",
     "release": "pnpm test && release-it"
   },
   "dependencies": {

src/parser.ts

@@ -31,6 +31,10 @@ export function useComponentMetaParser (
 ) {
   // const logger = consola.withScope('nuxt-component-meta')
 
+  /**
+   * Initialize component data object from components
+   */
+  let components: NuxtComponentMeta = { ...metaSources }
   const outputPath = join(outputDir, 'component-meta')
 
   const isExcluded = (component: any) => {
@@ -70,26 +74,17 @@ export function useComponentMetaParser (
       {
         extends: `${rootDir}/tsconfig.json`,
         skipLibCheck: true,
-        include: [
-          '**/*',
-          ...componentDirs.map((dir) => {
-            const path = typeof dir === 'string' ? dir : (dir?.path || '')
-            if (path.endsWith('.vue')) {
-              return path
-            }
-            return `${path}/**/*`
-          })
-        ],
+        include: componentDirs.map((dir) => {
+          const path = typeof dir === 'string' ? dir : (dir?.path || '')
+          const ext = path.split('.').pop()!
+          return ['vue', 'ts', 'tsx', 'js', 'jsx'].includes(ext) ? path : `${path}/**/*`
+        }),
         exclude: []
       },
       checkerOptions
     )
   }
 
-  /**
-   * Initialize component data object from components
-   */
-  const components: NuxtComponentMeta = { ...metaSources }
   const init = async () => {
     const meta = await import(outputPath + '.mjs').then((m) => m.default || m).catch(() => null)
 
@@ -171,7 +166,7 @@ export function useComponentMetaParser (
 
       if (component.meta.hash && component.fullPath.includes('/node_modules/')) {
         // We assume that components from node_modules don't change
-        return 
+        return
       }
 
       // Read component code
@@ -269,6 +264,13 @@ export function useComponentMetaParser (
   return {
     get checker () { return checker },
     get components () { return components },
+    dispose() {
+      checker.clearCache()
+      // @ts-expect-error - Remove checker
+      checker = null
+      // Clear components cache
+      components = {}
+    },
     init,
     refreshChecker,
     stubOutput,

src/unplugin.ts

@@ -5,7 +5,7 @@ type ComponentMetaUnpluginOptions = { parser?: ComponentMetaParser, parserOption
 
 // @ts-ignore -- arguments types are not correct
 export const metaPlugin = createUnplugin<ComponentMetaUnpluginOptions>(({ parser, parserOptions }) => {
-    const instance = parser || useComponentMetaParser(parserOptions)
+    let instance = parser || useComponentMetaParser(parserOptions)
     let _configResolved: any
 
     return {
@@ -17,15 +17,22 @@ export const metaPlugin = createUnplugin<ComponentMetaUnpluginOptions>(({ parser
           return
         }
 
-        instance.fetchComponents()
-        instance.updateOutput()
+        instance?.fetchComponents()
+        instance?.updateOutput()
+      },
+      buildEnd () {
+        if (!_configResolved?.env.DEV && _configResolved?.env.PROD) {
+          instance?.dispose()
+          // @ts-expect-error -- Remove instance from memory
+          instance = null
+        }
       },
       vite: {
         configResolved (config) {
           _configResolved = config
         },
         handleHotUpdate ({ file }) {
-          if (Object.entries(instance.components).some(([, comp]: any) => comp.fullPath === file)) {
+          if (instance && Object.entries(instance.components).some(([, comp]: any) => comp.fullPath === file)) {
             instance.fetchComponent(file)
             instance.updateOutput()
           }