Fix previously refactored AppRepairer

Assets/PatchKit Patcher/Scripts/AppUpdater/AppRepairer.cs

@@ -104,8 +104,8 @@ AppContentSummary latestVersionContentSummary
             bool isNewVersionAvailable = installedVersionId < latestVersionId;
 
             long contentSize = isNewVersionAvailable
-                ? latestVersionContentSummary.Size
-                : installedVersionContentSummary.Size;
+                ? latestVersionContentSummary.Files.Sum(f => f.Size)
+                : installedVersionContentSummary.Files.Sum(f => f.Size);
 
             double repairCost = CalculateRepairCost(installedVersionContentSummary, filesNeedFixing);
 
@@ -117,11 +117,9 @@ AppContentSummary latestVersionContentSummary
                     + _lowestVersionWithContentId +
                     " and currently installed version id is "
                     + installedVersionId +
-                    ". Uninstalling to prepare for content strategy.");
+                    ". Reinstalling.");
 
-                IUninstallCommand uninstall = _commandFactory.CreateUninstallCommand(Context);
-                uninstall.Prepare(_status, cancellationToken);
-                uninstall.Execute(cancellationToken);
+                ReinstallContent(cancellationToken);
             }
             else if (repairCost < contentSize)
             {
@@ -131,10 +129,8 @@ AppContentSummary latestVersionContentSummary
             }
             else
             {
-                DebugLogger.Log("Content cost is smaller than repair. Uninstalling to prepare for content strategy.");
-                IUninstallCommand uninstall = _commandFactory.CreateUninstallCommand(Context);
-                uninstall.Prepare(_status, cancellationToken);
-                uninstall.Execute(cancellationToken);
+                DebugLogger.Log(string.Format("Content cost {0} is smaller than repair {1}. Reinstalling.", contentSize, repairCost));
+                ReinstallContent(cancellationToken);
             }
 
             return false;
@@ -173,5 +169,17 @@ private long CalculateRepairCost(AppContentSummary contentSummary, IEnumerable<F
                 .Select(f => contentSummary.Files.FirstOrDefault(e => e.Path == f.FileName))
                 .Sum(f => f.Size);
         }
+
+        private void ReinstallContent(PatchKit.Unity.Patcher.Cancellation.CancellationToken cancellationToken)
+        {
+            IUninstallCommand uninstall = _commandFactory.CreateUninstallCommand(Context);
+            uninstall.Prepare(_status, cancellationToken);
+            uninstall.Execute(cancellationToken);
+
+            // not catching any exceptions here, because exception during content installation in this place should be fatal
+            var contentStrategy = new AppUpdaterContentStrategy(Context, _status);
+            contentStrategy.RepairOnError = false; // do not attempt to repair content to not cause a loop
+            contentStrategy.Update(cancellationToken);
+        }
     }
 }

Assets/PatchKit Patcher/Scripts/AppUpdater/AppUpdaterContentStrategy.cs

@@ -17,6 +17,8 @@ public class AppUpdaterContentStrategy: IAppUpdaterStrategy
 
         private bool _updateHasBeenCalled;
 
+        public bool RepairOnError { get; set; }
+
         public AppUpdaterContentStrategy(AppUpdaterContext context, UpdaterStatus status)
         {
             Checks.ArgumentNotNull(context, "context");
@@ -25,6 +27,9 @@ public AppUpdaterContentStrategy(AppUpdaterContext context, UpdaterStatus status
 
             _context = context;
             _status = status;
+
+            // defaults
+            RepairOnError = true;
         }
 
         public StrategyType GetStrategyType()
@@ -103,7 +108,7 @@ public void Update(CancellationToken cancellationToken)
 
             installContent.Execute(cancellationToken);
 
-            if (installContent.NeedRepair)
+            if (installContent.NeedRepair && RepairOnError)
             {
                 DebugLogger.Log("Content installed with errors, requesting repair");
 

Assets/PatchKit Patcher/Scripts/AppUpdater/AppUpdaterDiffStrategy.cs

@@ -31,6 +31,9 @@ public struct Context<CommandType>
 
         private bool _updateHasBeenCalled;
 
+        // not used
+        public bool RepairOnError { get; set; }
+
         public AppUpdaterDiffStrategy(AppUpdaterContext context, UpdaterStatus status)
         {
 

Assets/PatchKit Patcher/Scripts/AppUpdater/AppUpdaterEmptyStrategy.cs

@@ -8,6 +8,9 @@ public class AppUpdaterEmptyStrategy: IAppUpdaterStrategy
     {
         private static readonly DebugLogger DebugLogger = new DebugLogger(typeof(AppUpdaterStrategyResolver));
 
+        // not used
+        public bool RepairOnError { get; set; }
+
         public StrategyType GetStrategyType()
         {
             return StrategyType.Empty;

Assets/PatchKit Patcher/Scripts/AppUpdater/AppUpdaterRepairAndDiffStrategy.cs

@@ -17,6 +17,9 @@ public class AppUpdaterRepairAndDiffStrategy: IAppUpdaterStrategy
         private readonly IAppUpdaterStrategy _repairStrategy;
         private readonly IAppUpdaterStrategy _diffStrategy;
 
+        // not used
+        public bool RepairOnError { get; set; }
+
         public AppUpdaterRepairAndDiffStrategy(AppUpdaterContext context, UpdaterStatus status)
         {
             Assert.IsNotNull(context, "Context is null");

Assets/PatchKit Patcher/Scripts/AppUpdater/AppUpdaterRepairStrategy.cs

@@ -22,6 +22,9 @@ public class AppUpdaterRepairStrategy: IAppUpdaterStrategy
 
         private readonly ILogger _logger;
 
+        // not used
+        public bool RepairOnError { get; set; }
+
         public AppUpdaterRepairStrategy(AppUpdaterContext context, UpdaterStatus status)
         {
             Assert.IsNotNull(context, "Context is null");

Assets/PatchKit Patcher/Scripts/AppUpdater/IAppUpdaterStrategy.cs

@@ -15,6 +15,11 @@ public enum StrategyType
 
     public interface IAppUpdaterStrategy
     {
+        // if set to true, attempt to repair by using AppRepairer on error.
+        // Makes sense to set it to false from ongoing repair process.
+        // default: true
+        bool RepairOnError { get; set; }
+
         void Update(CancellationToken cancellationToken);
 
         StrategyType GetStrategyType();