From 473c278d9eb790c48e8fa32d9fe6b2c95173e6f9 Mon Sep 17 00:00:00 2001
From: hasezoey <hasezoey@gmail.com>
Date: Wed, 15 Jun 2022 16:27:18 +0200
Subject: [PATCH] fix(MongoInstance::checkErrorInLine): optimize "exception in
 initAndListen" regex

re #560
---
 .../src/util/MongoInstance.ts                 | 26 +++++++++++--------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/packages/mongodb-memory-server-core/src/util/MongoInstance.ts b/packages/mongodb-memory-server-core/src/util/MongoInstance.ts
index 631ed253d..f1db7b21d 100644
--- a/packages/mongodb-memory-server-core/src/util/MongoInstance.ts
+++ b/packages/mongodb-memory-server-core/src/util/MongoInstance.ts
@@ -574,21 +574,25 @@ export class MongoInstance extends EventEmitter implements ManagerBase {
         new StdoutInstanceError(`Port "${this.instanceOpts.port}" already in use`)
       );
     }
-    if (/exception in initAndListen: \w+[^:]: .+[^,], terminating/i.test(line)) {
-      // in pre-4.0 mongodb this exception may have been "permission denied" and "Data directory /path not found"
 
-      // this variable cannot actually be "null", because of the previous test
-      const matches = /exception in initAndListen: (\w+[^:]): (.+[^,]), terminating/i.exec(line);
+    {
+      const execptionMatch = /\bexception in initAndListen: (\w+): /i.exec(line);
 
-      const { 1: errorName, 2: origError } = matches || [];
+      if (!isNullOrUndefined(execptionMatch)) {
+        // in pre-4.0 mongodb this exception may have been "permission denied" and "Data directory /path not found"
 
-      this.emit(
-        MongoInstanceEvents.instanceError,
-        new StdoutInstanceError(
-          `Instance Failed to start with "${errorName}". Original Error:\n` + origError
-        )
-      );
+        this.emit(
+          MongoInstanceEvents.instanceError,
+          new StdoutInstanceError(
+            `Instance Failed to start with "${execptionMatch[1] ?? 'unknown'}". Original Error:\n` +
+              line
+                .substring(execptionMatch.index + execptionMatch[0].length)
+                .replaceAll(/, terminating$/gi, '')
+          )
+        );
+      }
     }
+
     if (/CURL_OPENSSL_3['\s]+not found/i.test(line)) {
       this.emit(
         MongoInstanceEvents.instanceError,