如何以编程方式运行EntityFramework反向POCO代码优先生成器(T4)？

Question

我想使用"EntityFramework Reverse POCO Code First Generator",但程序上不是来自VS. EntityFramework反向POCO代码Github

事实上我想从C#代码为此运行T4我为此目的下载了简单的t4引擎 Simple T4 Engine

我写了一些像这样的代码:

        Engine engine = new Engine();
        TemplatingHost host = new TemplatingHost(System.Text.Encoding.UTF32);
        host.IncludeFileSearchPaths.Add(@"D:\IncludeFiles");

        string templateFileName = "some template";
        // NOTE: Doesn't actually seem to care about the name of the template file?  True, but does use the path to search for stuff.
        host.TemplateFile = templateFileName;
        string input = File.ReadAllText(@"D:\IncludeFiles\T4Files\Database.tt");
        string output = engine.ProcessTemplate(input, host);
        File.WriteAllText(@"D:\IncludeFiles\T4Files\Output.txt", output);

        StringBuilder sb = new StringBuilder();
        foreach (CompilerError error in host.Errors)
        {
           sb.AppendLine(error.ToString());
        }

        File.WriteAllText(@"D:\IncludeFiles\T4Files\ErrorLog.txt", sb.ToString());

但是我遇到了一些错误(Output.txt为空)

ErrorLog.txt:

   error : Running transformation: System.InvalidCastException: Unable to cast transparent proxy to type 'System.IServiceProvider'.
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.GetDTE()
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.GetCurrentProject()
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.GetConfigPaths()
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.GetConnectionString(String& connectionStringName, String& providerName, String& configFilePath)
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.InitConnectionString()
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.GetDbProviderFactory()
   at Microsoft.VisualStudio.TextTemplating31A64EBEAB614B57E81A1789EC7637709A091834D5CA991E8A2195B15E2A0DFF588B0C98DCEDA8AD6902329A28B09556BDE2A9BEDFA48812CCC12CA1E68AA1C9.GeneratedTextTransformation.TransformText()

任何人都可以帮我解决这个问题吗？或者引入一种更好的方法在运行时运行Database.tt以编程方式在C#中执行.

Database.tt

• EF.Reverse.POCO.Core.ttinclude
• EF.Reverse.POCO.ttinclude
• EF.Utility.CS.ttinclude
• EF6.Utility.CS.ttinclude
• GenerateTSQL.Utility.ttinclude

Answer 1

我是Entity Framework Reverse POCO Generator的作者.

不幸的是,你无法在Visual Studio之外运行它,因为代码依赖于它.EnvDTE使反向生成器能够从Visual Studio项目添加/删除生成的文件.没有它,它将无法完成它的工作.

其他人问他们是否可以在构建服务器上运行它.但是,构建服务器可能无法访问逆向工程所需的数据库.因此,始终通过保存tt设置文件生成代码,并将生成的代码提交到源代码控制,并从那里提交到构建服务器.

顺便说一句,要明确一点:我不希望这个项目在Visual Studio之外自动化,或者包含在任何类型的其他产品中.许可证中规定了这一点.