From 05cf1fed9f893b9958743f26a4f6f2a59a247b73 Mon Sep 17 00:00:00 2001
From: Rob Holt <roholt@microsoft.com>
Date: Mon, 6 Jan 2020 15:37:17 -0800
Subject: [PATCH] Fix log file collision

---
 .../Commands/StartEditorServicesCommand.cs           | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/PowerShellEditorServices.Hosting/Commands/StartEditorServicesCommand.cs b/src/PowerShellEditorServices.Hosting/Commands/StartEditorServicesCommand.cs
index 22addea79..09d643e3b 100644
--- a/src/PowerShellEditorServices.Hosting/Commands/StartEditorServicesCommand.cs
+++ b/src/PowerShellEditorServices.Hosting/Commands/StartEditorServicesCommand.cs
@@ -256,7 +256,17 @@ private void StartLogging()
                 _loggerUnsubscribers.Add(_logger.Subscribe(hostLogger));
             }
 
-            string logPath = Path.Combine(GetLogDirPath(), "StartEditorServices.log");
+            string logDirPath = GetLogDirPath();
+            string logPath = Path.Combine(logDirPath, "StartEditorServices.log");
+
+            // Temp debugging sessions may try to reuse this same path,
+            // so we ensure they have a unique path
+            if (File.Exists(logPath))
+            {
+                int randomInt = new Random().Next();
+                logPath = Path.Combine(logDirPath, $"StartEditorServices-temp{randomInt.ToString("X")}.log");
+            }
+
             var fileLogger = StreamLogger.CreateWithNewFile(logPath);
             _disposableResources.Add(fileLogger);
             IDisposable fileLoggerUnsubscriber = _logger.Subscribe(fileLogger);