94 lines
4.4 KiB
C#
94 lines
4.4 KiB
C#
#region Disclaimer / License
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// Copyright (C) 2015, The Duplicati Team
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// http://www.duplicati.com, info@duplicati.com
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Duplicati.Library.SQLiteHelper
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{
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public static class SQLiteLoader
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{
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/// <summary>
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/// A cached copy of the type
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/// </summary>
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private static Type m_type = null;
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/// <summary>
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/// Returns the SQLiteCommand type for the current architecture
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/// </summary>
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public static Type SQLiteConnectionType
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{
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get
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{
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if (m_type == null)
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{
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string filename = "System.Data.SQLite.dll";
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string basePath = System.IO.Path.Combine(System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location), "SQLite");
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//Default is to use the pinvoke version which requires a native .dll/.so
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string assemblyPath = System.IO.Path.Combine(basePath, "pinvoke");
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if (!Duplicati.Library.Utility.Utility.IsMono)
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{
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//If we run with MS.Net we can use the mixed mode assemblies
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if (Library.Utility.Utility.Is64BitProcess)
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{
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if (System.IO.File.Exists(System.IO.Path.Combine(System.IO.Path.Combine(basePath, "win64"), filename)))
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assemblyPath = System.IO.Path.Combine(basePath, "win64");
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}
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else
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{
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if (System.IO.File.Exists(System.IO.Path.Combine(System.IO.Path.Combine(basePath, "win32"), filename)))
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assemblyPath = System.IO.Path.Combine(basePath, "win32");
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}
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} else {
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//On Mono, we try to find the Mono version of SQLite
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//This secret commandline variable can be used to support older installations
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if (System.Environment.GetEnvironmentVariable("DISABLE_MONO_DATA_SQLITE") == null)
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{
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try
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{
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Type t = System.Reflection.Assembly.Load("Mono.Data.Sqlite, Version=2.0.0.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756").GetType("Mono.Data.Sqlite.SqliteConnection");
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if (t != null && t.GetInterface("System.Data.IDbConnection", false) != null)
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{
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Version v = new Version((string)t.GetProperty("SQLiteVersion").GetValue(null, null));
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if (v >= new Version(3, 6, 3))
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{
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m_type = t;
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return m_type;
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}
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}
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} catch (Exception ex){
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Console.WriteLine(string.Format("Failed to load Mono.Data.Sqlite.SqliteConnection, reverting to built-in.{0} Error message: {1}", Environment.NewLine, ex.ToString()));
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}
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}
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}
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m_type = System.Reflection.Assembly.LoadFile(System.IO.Path.Combine(assemblyPath, filename)).GetType("System.Data.SQLite.SQLiteConnection");
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}
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return m_type;
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}
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}
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}
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}
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