Merge pull request #103 from msallin/#97

#97 Copy file attributes when recreating db file.

Author: msallin

SQLite.CodeFirst/Internal/Utility/InMemoryAwareFile.cs

@@ -5,6 +5,24 @@ namespace SQLite.CodeFirst.Utility
 {
     internal class InMemoryAwareFile
     {
+        public static FileAttributes? GetFileAttributes(string path)
+        {
+            if (IsInMemoryPath(path))
+            {
+                return null;
+            }
+            return File.GetAttributes(path);
+        }
+
+        public static void SetFileAttributes(string path, FileAttributes? fileAttributes)
+        {
+            if (IsInMemoryPath(path) || fileAttributes == null)
+            {
+                return;
+            }
+            File.SetAttributes(path, fileAttributes.Value);
+        }
+
         public static bool Exists(string path)
         {
             if (IsInMemoryPath(path))

SQLite.CodeFirst/Public/DbInitializers/SqliteDropCreateDatabaseAlways.cs

@@ -34,10 +34,15 @@ public override void InitializeDatabase(TContext context)
             bool exists = InMemoryAwareFile.Exists(databseFilePath);
             if (exists)
             {
+                FileAttributes? attributes = InMemoryAwareFile.GetFileAttributes(databseFilePath);
                 InMemoryAwareFile.Delete(databseFilePath);
+                base.InitializeDatabase(context);
+                InMemoryAwareFile.SetFileAttributes(databseFilePath, attributes);
+            }
+            else
+            {
+                base.InitializeDatabase(context);
             }
-
-            base.InitializeDatabase(context);
         }
     }
 }

SQLite.CodeFirst/Public/DbInitializers/SqliteDropCreateDatabaseWhenModelChanges.cs

@@ -70,16 +70,18 @@ public override void InitializeDatabase(TContext context)
         {
             string databseFilePath = GetDatabasePathFromContext(context);
 
-            bool dbExists = File.Exists(databseFilePath);
+            bool dbExists = InMemoryAwareFile.Exists(databseFilePath);
             if (dbExists)
             {
                 if (IsSameModel(context))
                 {
                     return;
                 }
 
+                FileAttributes? attributes = InMemoryAwareFile.GetFileAttributes(databseFilePath);
                 DeleteDatabase(context, databseFilePath);
                 base.InitializeDatabase(context);
+                InMemoryAwareFile.SetFileAttributes(databseFilePath, attributes);
                 SaveHistory(context);
             }
             else