Fixed: Auto-Updater rollback logic tries to restore unchanged files.

2026-04-22 22:14:44 -04:00 · 2016-09-09 01:05:27 +02:00
parent 09530b238f
commit 4bf3ef45b0
10 changed files with 244 additions and 23 deletions
@@ -0,0 +1,42 @@
+using System;
+using System.IO;
+using NLog;
+
+namespace NzbDrone.Update.UpdateEngine
+{
+    public interface IDetectExistingVersion
+    {
+        string GetExistingVersion(string targetFolder);
+    }
+
+    public class DetectExistingVersion : IDetectExistingVersion
+    {
+        private readonly Logger _logger;
+
+        public DetectExistingVersion(Logger logger)
+        {
+            _logger = logger;
+        }
+
+        public string GetExistingVersion(string targetFolder)
+        {
+            try
+            {
+                var targetExecutable = Path.Combine(targetFolder, "NzbDrone.exe");
+
+                if (File.Exists(targetExecutable))
+                {
+                    var versionInfo = System.Diagnostics.FileVersionInfo.GetVersionInfo(targetExecutable);
+
+                    return versionInfo.FileVersion;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.Warn(ex, "Failed to get existing version from {0}", targetFolder);
+            }
+
+            return "(unknown)";
+        }
+    }
+}