public static ApplicationPartManager AddModularApplicationPart(this IServiceCollection services, string moduleDir)
{
var env = GetServiceFromCollection <IWebHostEnvironment>(services);
var moduleFileProvider = new PhysicalFileProvider(Path.Combine(env.ContentRootPath, moduleDir));
services.AddTransient <IConfigureOptions <ModuleMvcOptions>, ModuleMvcOptionsSetup>();
services.PostConfigure <ModuleMvcOptions>(options =>
{
options.FileProviders.Clear();
options.FileProviders.Add(moduleFileProvider);
});
services.AddSingleton <ModuleMvcFileProvider>();
services.AddSingleton <IModuleChangeProvider, CompositeModuleChangeProvider>();
services.AddSingleton <IActionDescriptorChangeProvider, ModuleActionDescriptorChangeProvider>();
var compilerProvider = services.FirstOrDefault(f =>
f.ServiceType == typeof(IViewCompilerProvider) &&
f.ImplementationType?.Assembly == typeof(IViewCompilerProvider).Assembly &&
f.ImplementationType.FullName == "Microsoft.AspNetCore.Mvc.Razor.Compilation.DefaultViewCompilerProvider");
if (compilerProvider != null)
{
// Replace the default implementation of IViewCompilerProvider
services.Remove(compilerProvider);
}
services.TryAddSingleton <IViewCompilerProvider, ModuleViewCompilerProvider>();
ApplicationPartManager applicationPartManager = GetServiceFromCollection <ApplicationPartManager>(services);
if (applicationPartManager == null)
{
throw new ArgumentNullException(nameof(applicationPartManager));
}
applicationPartManager.PopulateModuleParts(GetControllerModules(moduleFileProvider));
// DI of the module project can't unload
//var moduleAssemblyParts = applicationPartManager.ApplicationParts.OfType<ControllerModulesAssemblyPart>().ToList();
//foreach (var moduleAssemblyPart in moduleAssemblyParts)
//{
// foreach (var attribute in moduleAssemblyPart.Assembly.GetCustomAttributes<HostingServiceStartupAttribute>())
// {
// var hostingStartup = (IHostingServiceStartup)Activator.CreateInstance(attribute.HostingStartupType);
// hostingStartup.Configure(services);
// }
//}
return(applicationPartManager);
}