feat: change postinstall hook

Author: HerringtonDarkholme

packages/toml/package.json

@@ -6,11 +6,12 @@
   "scripts": {
     "copy-src": "node nursery.js copy",
     "build": "tree-sitter build -o parser.so",
-    "postinstall": "npm run build",
+    "postinstall": "node postinstall.js",
     "test": "node nursery.js test"
   },
   "files": [
     "index.js",
+    "postinstall.js",
     "src",
     "prebuilds"
   ],

packages/toml/postinstall.js

@@ -0,0 +1,28 @@
+const dir = __dirname
+
+const { execSync } = require('child_process')
+const fs = require('fs')
+const path = require('path')
+
+async function postinstall() {
+  const parser = path.join(dir, 'parser.so')
+  if (fs.existsSync(parser)) {
+    return
+  }
+  // resolve parser path
+  const prebuild = resolvePrebuild()
+  if (prebuild) {
+    fs.copyFileSync(prebuild, parser)
+  } else {
+    // build parser
+    execSync('npm run build')
+  }
+}
+
+function resolvePrebuild() {
+  const os = process.platform
+  const arch = process.arch
+  throw new Error(`TODO: ${os} ${arch}`)
+}
+
+postinstall()