fix(build-node): preserve Bun linker for node-pty install

packages/opencode/script/build-node.ts

@@ -8,6 +8,44 @@ import { fileURLToPath } from "url"
 const __filename = fileURLToPath(import.meta.url)
 const __dirname = path.dirname(__filename)
 const dir = path.resolve(__dirname, "..")
+const root = path.resolve(dir, "../..")
+
+type Pkg = {
+  dependencies?: Record<string, string>
+  devDependencies?: Record<string, string>
+  workspaces?: unknown
+}
+
+type Lock = {
+  configVersion?: number
+}
+
+function json<T>(file: string) {
+  return JSON.parse(fs.readFileSync(file, "utf8")) as T
+}
+
+function mod(base: string, name: string) {
+  return path.join(base, "node_modules", ...name.split("/"))
+}
+
+function linker(): "hoisted" | "isolated" {
+  const rootPkg = json<Pkg>(path.join(root, "package.json"))
+  const pkg = json<Pkg>(path.join(dir, "package.json"))
+
+  for (const [name, ver] of Object.entries(pkg.dependencies ?? {})) {
+    if (ver.startsWith("workspace:")) continue
+    if (rootPkg.dependencies?.[name] || rootPkg.devDependencies?.[name]) continue
+
+    const inRoot = fs.existsSync(mod(root, name))
+    const inDir = fs.existsSync(mod(dir, name))
+
+    if (inRoot !== inDir) return inRoot ? "hoisted" : "isolated"
+  }
+
+  const lock = json<Lock>(path.join(root, "bun.lock"))
+  if (lock.configVersion === 0) return "hoisted"
+  return rootPkg.workspaces ? "isolated" : "hoisted"
+}
 
 process.chdir(dir)
 
@@ -41,7 +79,9 @@ const migrations = await Promise.all(
 )
 console.log(`Loaded ${migrations.length} migrations`)
 
-await $`bun install --os="*" --cpu="*" @lydell/node-pty@1.2.0-beta.10`
+const link = linker()
+
+await $`bun install --linker=${link} --os="*" --cpu="*" @lydell/node-pty@1.2.0-beta.10`
 
 await Bun.build({
   target: "node",