feat(file): size-growth (#104)

* feat/file/size-growth

* feat(field): conversion factors

* fix(review): consistency

* feat(AgDb): MB consistency

Author: mja9

src/AgDatabase.cs

@@ -44,6 +44,9 @@ void Restore(IEnumerable<BackupMetadata> backupOrder, Func<int, TimeSpan> retryD
     void AddRole(LoginProperties login, RoleProperties role);
     IEnumerable<RoleProperties> AssociatedRoles();
     void ContainsLogin(string loginName);
+    void SetSizeLimit(int maxMB);
+    void SetGrowthRate(int growthMB);
+    void SetLogGrowthRate(int growthMB);
   }
 
 
@@ -294,6 +297,21 @@ public void MultiUserMode()
       _listener.Primary.Database(Name).MultiUserMode();
     }
 
+    public void SetSizeLimit(int maxMB)
+    {
+      _listener.Primary.Database(Name).SetSizeLimit(maxMB);
+    }
+
+    public void SetGrowthRate(int growthMB)
+    {
+      _listener.Primary.Database(Name).SetGrowthRate(growthMB);
+    }
+
+    public void SetLogGrowthRate(int growthMB)
+    {
+      _listener.Primary.Database(Name).SetLogGrowthRate(growthMB);
+    }
+
     public void CheckDBConnections(int connectionTimeout)
     {
       _listener.ForEachAgInstance(server => server.CheckDBConnection(Name, connectionTimeout));

src/SmoFacade/Database.cs

@@ -14,6 +14,7 @@ public class Database
   {
     internal readonly Microsoft.SqlServer.Management.Smo.Database _database;
     private readonly Server _server;
+    private const int MB_TO_KB = 1024;
 
     internal Database(Microsoft.SqlServer.Management.Smo.Database database, Server server)
     {
@@ -237,6 +238,35 @@ public void MultiUserMode()
       _database.Alter(TerminationClause.RollbackTransactionsImmediately);
     }
 
+    public void SetSizeLimit(int maxMB)
+    {
+      var dataFile = _database.FileGroups[_database.DefaultFileGroup].Files.Cast<DataFile>()
+        .Single(d => d.IsPrimaryFile);
+
+      dataFile.MaxSize = maxMB * MB_TO_KB;
+      dataFile.Alter();
+    }
+
+    public void SetGrowthRate(int growthMB)
+    {
+      var dataFile = _database.FileGroups[_database.DefaultFileGroup].Files.Cast<DataFile>()
+        .Single(d => d.IsPrimaryFile);
+
+      dataFile.GrowthType = FileGrowthType.KB;
+      dataFile.Growth = growthMB * MB_TO_KB;
+      dataFile.Alter();
+    }
+
+    public void SetLogGrowthRate(int growthMB)
+    {
+      foreach (var logFile in _database.LogFiles.Cast<LogFile>())
+      {
+        logFile.GrowthType = FileGrowthType.KB;
+        logFile.Growth = growthMB * MB_TO_KB;
+        logFile.Alter();
+      }
+    }
+
     private void ThrowIfUnreadyToDrop()
     {
       // Deleting the database while it is initializing will leave it in a state where system redo threads are stuck.