fix: handle missing search deps safer

Author: harlan-zw

src/retriv/pool.ts

@@ -4,6 +4,13 @@ import { existsSync } from 'node:fs'
 import { fileURLToPath } from 'node:url'
 import { Worker } from 'node:worker_threads'
 import { dirname, join } from 'pathe'
+import { SearchDepsUnavailableError } from './index.ts'
+
+function reconstructError(message: string, name?: string): Error {
+  if (name === 'SearchDepsUnavailableError')
+    return new SearchDepsUnavailableError(undefined, message)
+  return new Error(message)
+}
 
 interface PendingTask {
   id: number
@@ -54,7 +61,7 @@ function ensureWorker(): Worker {
     }
     else if (msg.type === 'error') {
       pending.delete(msg.id)
-      task.reject(new Error(msg.message))
+      task.reject(reconstructError(msg.message, msg.name))
     }
   })
 

src/retriv/worker.ts

@@ -33,6 +33,7 @@ export interface WorkerErrorResponse {
   type: 'error'
   id: number
   message: string
+  name?: string
 }
 
 export type WorkerResponse = WorkerProgressResponse | WorkerDoneResponse | WorkerErrorResponse
@@ -68,6 +69,7 @@ if (parentPort) {
           type: 'error',
           id,
           message: err instanceof Error ? err.message : String(err),
+          name: err instanceof Error ? err.name : undefined,
         } satisfies WorkerErrorResponse)
       }
     }