feat(plugin-tools): improve error serialization and let each storage plugin serialize errors themselves

packages/plugin-tools/src/index.ts

@@ -11,12 +11,16 @@ import {
 } from './types.js';
 
 export const serializeError = (error: Error): SerializedError => {
-  return {
+  const properties: Record<string, unknown> = {
     name: error.name,
-    message: error.message,
-    stack: error.stack,
-    cause: error.cause instanceof Error ? serializeError(error.cause) : error.cause,
   };
+
+  for (const key of Object.getOwnPropertyNames(error)) {
+    const value = error[key as keyof Error];
+    properties[key] = value instanceof Error ? serializeError(value) : value;
+  }
+
+  return properties as SerializedError;
 };
 
 export const isGeneratorPlugin = (plugin: any): plugin is GeneratorPlugin => {

packages/plugin-tools/src/types.ts

@@ -5,7 +5,8 @@ export type StringOrModule<T> = string | T | (() => Awaitable<T>) | (() => Await
 export type MigrationStatus = 'failed' | 'done' | 'pending';
 
 export type SerializedError = {
-  name: string;
+  [key: string]: unknown;
+  name?: string;
   message: string;
   stack?: string;
   cause?: unknown;
@@ -73,7 +74,7 @@ export type Storage = {
    * @param migration The name of the migration that should be marked as failed.
    * @param error The error that caused the migration to fail.
    */
-  onError(migration: MigrationMetadataFinished, error: SerializedError): Promise<void>;
+  onError(migration: MigrationMetadataFinished, error: Error): Promise<void>;
   /**
    * Called when the command is finished or aborted (e.g. by a SIGTERM or SIGINT signal).
    *