feat: migrate setup to ts

fix #10

Author: HerringtonDarkholme

pnpm-lock.yaml

@@ -8,7 +8,8 @@
   "author": "",
   "license": "ISC",
   "scripts": {
-    "compile": "tsc"
+    "compile": "tsc",
+    "prepublishOnly": "tsc"
   },
   "dependencies": {
     "@ast-grep/napi": "0.33.0",

scripts/nursery/package.json

@@ -1,20 +1,18 @@
-const { execSync } = require('child_process')
-const fs = require('fs')
-const path = require('path')
+import { execSync } from 'child_process'
+import fs from 'fs'
+import path from 'path'
 
 /**
  * Log to console
- * @param  {...string} args
  */
-function log(...args) {
+function log(...args: unknown[]) {
   console.debug(`@ast-grep/lang:`, ...args)
 }
 
 /**
  * Move prebuild or build parser
- * @param {string} dir
  */
-async function postinstall(dir) {
+async function postinstall(dir: string) {
   const parser = path.join(dir, 'parser.so')
   if (fs.existsSync(parser)) {
     log('parser already exists, skipping build')
@@ -29,28 +27,27 @@ async function postinstall(dir) {
   log('building parser')
   try {
     execSync('npm run build')
-  } catch (e) {
+  } catch (e: unknown) {
     log('build failed, please ensure tree-sitter-cli is installed as peer dependency')
     log(e)
   }
 }
 
-const PLATFORM_MAP = {
+const PLATFORM_MAP: Record<string, string> = {
   darwin: 'macOS',
   linux: 'Linux',
   win32: 'Windows',
 }
 
-const ARCH_MAP = {
+const ARCH_MAP: Record<string, string> = {
   x64: 'x64',
   arm64: 'ARM64',
 }
 
 /**
  * Resolve prebuild path
- * @param {string} dir
  */
-function resolvePrebuild(dir) {
+function resolvePrebuild(dir: string) {
   const os = PLATFORM_MAP[process.platform]
   const arch = ARCH_MAP[process.arch]
   const prebuild = path.join(dir, 'prebuilds', `prebuild-${os}-${arch}`, 'parser.so')
@@ -62,4 +59,4 @@ function resolvePrebuild(dir) {
   return prebuild
 }
 
-exports.postinstall = postinstall
+export { postinstall }

scripts/setup/index.js renamed to scripts/setup/index.ts

@@ -7,8 +7,16 @@
   "keywords": [],
   "author": "",
   "license": "ISC",
+  "scripts": {
+    "compile": "tsc",
+    "prepublishOnly": "tsc"
+  },
   "publishConfig": {
     "access": "public",
     "registry": "https://registry.npmjs.org/"
+  },
+  "devDependencies": {
+    "typescript": "^5.7.3",
+    "@types/node": "22.10.5"
   }
 }

scripts/setup/package.json

@@ -0,0 +1,3 @@
+{
+  "extends": "../../tsconfig.json"
+}