From 8d779e8aecb2e0774826d2d2c33c138acfd799cd Mon Sep 17 00:00:00 2001
From: "J. Ryan Stinnett" <jryans@gmail.com>
Date: Tue, 23 Feb 2021 16:30:07 +0000
Subject: [PATCH] Optimise prefixed logger

Tweak the prefixed logger to only do the setup work the first time.
---
 src/logger.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/logger.ts b/src/logger.ts
index ad455b19f..8357c70c0 100644
--- a/src/logger.ts
+++ b/src/logger.ts
@@ -68,7 +68,10 @@ interface PrefixedLogger extends Logger {
 
 export function getPrefixedLogger(prefix): PrefixedLogger {
     const prefixLogger: PrefixedLogger = log.getLogger(`${DEFAULT_NAMESPACE}-${prefix}`);
-    prefixLogger.prefix = prefix;
-    prefixLogger.setLevel(log.levels.DEBUG);
+    if (prefixLogger.prefix !== prefix) {
+        // Only do this setup work the first time through, as loggers are saved by name.
+        prefixLogger.prefix = prefix;
+        prefixLogger.setLevel(log.levels.DEBUG);
+    }
     return prefixLogger;
 }