When upgrading Kavita, clear out existing Github cache.

API/Services/Tasks/VersionUpdaterService.cs

@@ -52,6 +52,7 @@ public interface IVersionUpdaterService
     Task PushUpdate(UpdateNotificationDto update);
     Task<IList<UpdateNotificationDto>> GetAllReleases(int count = 0);
     Task<int> GetNumberOfReleasesBehind(bool stableOnly = false);
+    void BustGithubCache();
 }
 
 
@@ -384,7 +385,7 @@ public partial class VersionUpdaterService : IVersionUpdaterService
         if (DateTime.UtcNow - fileInfo.LastWriteTimeUtc <= CacheDuration)
         {
             var cachedData = await File.ReadAllTextAsync(_cacheLatestReleaseFilePath);
-            return System.Text.Json.JsonSerializer.Deserialize<UpdateNotificationDto>(cachedData);
+            return JsonSerializer.Deserialize<UpdateNotificationDto>(cachedData);
         }
 
         return null;
@@ -407,7 +408,7 @@ public partial class VersionUpdaterService : IVersionUpdaterService
     {
         try
         {
-            var json = System.Text.Json.JsonSerializer.Serialize(update, JsonOptions);
+            var json = JsonSerializer.Serialize(update, JsonOptions);
             await File.WriteAllTextAsync(_cacheLatestReleaseFilePath, json);
         }
         catch (Exception ex)
@@ -446,6 +447,21 @@ public partial class VersionUpdaterService : IVersionUpdaterService
             .Count(u => u.IsReleaseNewer);
     }
 
+    /// <summary>
+    /// Clears the Github cache
+    /// </summary>
+    public void BustGithubCache()
+    {
+        try
+        {
+            File.Delete(_cacheFilePath);
+            File.Delete(_cacheLatestReleaseFilePath);
+        } catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to clear Github cache");
+        }
+    }
+
     private UpdateNotificationDto? CreateDto(GithubReleaseMetadata? update)
     {
         if (update == null || string.IsNullOrEmpty(update.Tag_Name)) return null;

API/Startup.cs

@@ -223,7 +223,7 @@ public class Startup
     // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
     public void Configure(IApplicationBuilder app, IBackgroundJobClient backgroundJobs, IWebHostEnvironment env,
         IHostApplicationLifetime applicationLifetime, IServiceProvider serviceProvider, ICacheService cacheService,
-        IDirectoryService directoryService, IUnitOfWork unitOfWork, IBackupService backupService, IImageService imageService)
+        IDirectoryService directoryService, IUnitOfWork unitOfWork, IBackupService backupService, IImageService imageService, IVersionUpdaterService versionService)
     {
 
         var logger = serviceProvider.GetRequiredService<ILogger<Program>>();
@@ -235,9 +235,10 @@ public class Startup
                     // Apply all migrations on startup
                     var dataContext = serviceProvider.GetRequiredService<DataContext>();
 
-
                     logger.LogInformation("Running Migrations");
 
+                    #region Migrations
+
                     // v0.7.9
                     await MigrateUserLibrarySideNavStream.Migrate(unitOfWork, dataContext, logger);
 
@@ -289,13 +290,23 @@ public class Startup
                     await ManualMigrateScrobbleSpecials.Migrate(dataContext, logger);
                     await ManualMigrateScrobbleEventGen.Migrate(dataContext, logger);
 
+                    #endregion
+
                     //  Update the version in the DB after all migrations are run
                     var installVersion = await unitOfWork.SettingsRepository.GetSettingAsync(ServerSettingKey.InstallVersion);
+                    var isVersionDifferent = installVersion.Value != BuildInfo.Version.ToString();
                     installVersion.Value = BuildInfo.Version.ToString();
                     unitOfWork.SettingsRepository.Update(installVersion);
                     await unitOfWork.CommitAsync();
 
                     logger.LogInformation("Running Migrations - complete");
+
+                    if (isVersionDifferent)
+                    {
+                        // Clear the Github cache so update stuff shows correctly
+                        versionService.BustGithubCache();
+                    }
+
                 }).GetAwaiter()
                 .GetResult();
         }