Merge pull request #2515 from JustAMan/migration-scripts

Implement ability to run migration routines when updating Jellyfin

1 files changed, 28 insertions, 0 deletions

diff --git a/Jellyfin.Server/CoreAppHost.cs b/Jellyfin.Server/CoreAppHost.cs
index 8b4b61e29..cd5a2ce85 100644
--- a/Jellyfin.Server/CoreAppHost.cs
+++ b/Jellyfin.Server/CoreAppHost.cs
@@ -57,5 +57,33 @@ namespace Jellyfin.Server
 
         /// <inheritdoc />
         protected override void ShutdownInternal() => Program.Shutdown();
+
+        /// <summary>
+        /// Runs the migration routines if necessary.
+        /// </summary>
+        public void TryMigrate()
+        {
+            var previousVersion = ConfigurationManager.CommonConfiguration.PreviousVersion;
+            switch (ApplicationVersion.CompareTo(previousVersion))
+            {
+                case 1:
+                    Logger.LogWarning("Version check shows Jellyfin was updated: previous version={0}, current version={1}", previousVersion, ApplicationVersion);
+
+                    Migrations.Run(this, Logger);
+
+                    ConfigurationManager.CommonConfiguration.PreviousVersion = ApplicationVersion;
+                    ConfigurationManager.SaveConfiguration();
+                    break;
+                case 0:
+                    // nothing to do, versions match
+                    break;
+                case -1:
+                    Logger.LogWarning("Version check shows Jellyfin was rolled back, use at your own risk: previous version={0}, current version={1}", previousVersion, ApplicationVersion);
+                    // no "rollback" routines for now
+                    ConfigurationManager.CommonConfiguration.PreviousVersion = ApplicationVersion;
+                    ConfigurationManager.SaveConfiguration();
+                    break;
+            }
+        }
     }
 }