fix: add back types/* subpackages exports (#418)

Co-authored-by: Anthony Fu <[email protected]>

Author: userquin

package.json

@@ -58,7 +58,46 @@
       "import": "./dist/webpack.js",
       "require": "./dist/webpack.cjs"
     },
-    "./package.json": "./package.json"
+    "./package.json": "./package.json",
+    "./types/astro": {
+      "types": "./types/astro.d.ts"
+    },
+    "./types/preact": {
+      "types": "./types/preact.d.ts"
+    },
+    "./types/qwik": {
+      "types": "./types/qwik.d.ts"
+    },
+    "./types/raw": {
+      "types": "./types/raw.d.ts"
+    },
+    "./types/react": {
+      "types": "./types/react.d.ts"
+    },
+    "./types/solid": {
+      "types": "./types/solid.d.ts"
+    },
+    "./types/svelte": {
+      "types": "./types/svelte.d.ts"
+    },
+    "./types/svelte3": {
+      "types": "./types/svelte3.d.ts"
+    },
+    "./types/svelte4": {
+      "types": "./types/svelte4.d.ts"
+    },
+    "./types/svelte5": {
+      "types": "./types/svelte5.d.ts"
+    },
+    "./types/vue": {
+      "types": "./types/vue.d.ts"
+    },
+    "./types/vue3": {
+      "types": "./types/vue3.d.ts"
+    },
+    "./types/web-components": {
+      "types": "./types/web-components.d.ts"
+    }
   },
   "main": "./dist/index.cjs",
   "module": "./dist/index.js",
@@ -72,7 +111,6 @@
     }
   },
   "files": [
-    "*.d.ts",
     "dist",
     "types"
   ],

tsdown.config.ts

@@ -1,8 +1,60 @@
+import * as fsPromises from 'node:fs/promises'
 import { defineConfig } from 'tsdown'
 
 export default defineConfig({
   entry: ['src/*.ts'],
   format: ['esm', 'cjs'],
   external: ['vue', '@iconify/json/package.json'],
-  exports: true,
+  exports: {
+    async customExports(exp) {
+      // replace this for await with `import { glob } from 'node:fs/promises'
+      // requires node v22.14.0+ => https://nodejs.org/api/fs.html
+      for await (const [key, types] of getDtsTypesFiles()) {
+        if (!exp[key]) {
+          exp[key] = { types }
+        }
+      }
+      return exp
+    },
+  },
+  hooks: {
+    'build:done': async () => {
+      await patchNode16CJSDefaultExports([
+        'index',
+        'resolver',
+      ])
+    },
+  },
 })
+
+async function patchNode16CJSDefaultExports(
+  files: string[],
+) {
+  await Promise.all(files.map(async (file) => {
+    const path = `./dist/${file}.d.cts`
+    const content = await fsPromises.readFile(path, { encoding: 'utf8' })
+    const fixedContent = content.match(/export\s+\{(.*)\};/)
+    if (fixedContent && fixedContent.length > 0) {
+      const exports = fixedContent[1].split(',').map(e => e.trim()).filter(e => e.includes(' as default'))
+      if (exports.length === 1) {
+        await fsPromises.writeFile(
+          path,
+          content.replace(fixedContent[0], `export = ${exports[0].replace(' as default', '').trim()};`),
+          { encoding: 'utf8' },
+        )
+      }
+    }
+  }))
+}
+
+async function* getDtsTypesFiles(): AsyncGenerator<[
+  key: string,
+  types: string,
+], undefined, void> {
+  const files = await fsPromises.readdir('./types/')
+  for (const file of files) {
+    if (file.endsWith('.d.ts') && file !== 'index.d.ts') {
+      yield [`./types/${file.replace(/\.d\.ts$/, '')}`, `./types/${file}`] as const
+    }
+  }
+}