Compile to module with Roslyn - roslyn

Question

I need to compile any C# or VB.NET project to .NetModule. I have following sample code which emits DLLs, Need some help to modify following to get .NetModules out from .csproj
Thanks in advance.
// Required Microsoft.CodeAnalysis 1.3.0
class Program
{
static void Main(string[] args)
{
try
{
//Please copy provide a path to a .csproj
CompileProject(#"C:\WebGoat\WebGoat.NET.csproj", #"C:\tempout").Wait();
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
async static Task<string> CompileProject(string projectFilePath, string outputFolderPath)
{
using (var workspace = MSBuildWorkspace.Create())
{
var project = workspace.OpenProjectAsync(projectFilePath).Result;
await Emit(project, outputFolderPath);
return Path.GetFileName(project.OutputFilePath);
}
}
async static Task Emit(Project project, string outputFolderPath)
{
Directory.CreateDirectory(outputFolderPath);
var compilation = await project.GetCompilationAsync();
var outputFilePath = Path.Combine(outputFolderPath, Path.GetFileName(project.OutputFilePath));
var pdbFilePath = Path.ChangeExtension(outputFilePath, "pdb");
var compilationStatus = compilation.Emit(outputFilePath, pdbPath: pdbFilePath);
if (!compilationStatus.Success)
{
Console.WriteLine("Failed.");
}
else
{
Console.WriteLine("Pass.");
}
}

Answer 1

I believe you're looking for CompilationOptions.OutputKind and specifically OutputKind.NetModule.
Something similar to the following should work:
var project = workspace.OpenProjectAsync(projectFilePath).Result;
var options = project.CompilationOptions;
var netModuleOptions = options.WithOutputKind(OutputKind.NetModule);
var projectWithOptions = project.WithCompilationOptions(netModuleOptions);
Now you should be able to get a compilation and emit it as you normally would.

Answer 2

Following fixed the issue
var project = workspace.OpenProjectAsync(projectFilePath).Result;
var options = project.CompilationOptions;
options = options.WithOutputKind(OutputKind.NetModule).WithPlatform(Platform.AnyCpu);
project = project.WithCompilationOptions(options);
var moduleCompilation = await project.GetCompilationAsync();