fixed package dependencies when tool works with VS (#1692)

src/Scaffolding/VS.Web.CG.Design/Program.cs

@@ -5,6 +5,7 @@
 using System.IO;
 using System.Linq;
 using Microsoft.DotNet.Scaffolding.Shared;
+using Microsoft.DotNet.Scaffolding.Shared.ProjectModel;
 using Microsoft.Extensions.CommandLineUtils;
 
 namespace Microsoft.VisualStudio.Web.CodeGeneration.Design
@@ -71,7 +72,9 @@ private static void Execute(string[] args, ConsoleLogger logger)
                     {
                         var messageOrchestrator = new MessageOrchestrator(client, logger);
                         var projectInformation = messageOrchestrator.GetProjectInformation();
-
+                        string projectAssetsFile = ProjectModelHelper.GetProjectAssetsFile(projectInformation);
+                        //fix package dependencies sent from VS
+                        projectInformation = projectInformation.AddPackageDependencies(projectAssetsFile);
                         var codeGenArgs = ToolCommandLineHelper.FilterExecutorArguments(args);
                         var isSimulationMode = ToolCommandLineHelper.IsSimulationMode(args);
                         CodeGenCommandExecutor executor = new CodeGenCommandExecutor(projectInformation,

src/Scaffolding/VS.Web.CG.Msbuild/ProjectContextWriter.cs

@@ -15,6 +15,9 @@ namespace Microsoft.VisualStudio.Web.CodeGeneration.Msbuild
 {
     public class ProjectContextWriter : Build.Utilities.Task
     {
+        private const string EntityFrameworkCore = "Microsoft.EntityFrameworkCore";
+        private const string AspNetCoreIdentity = "Microsoft.AspNetCore.Identity";
+
         private const string TargetsProperty = "targets";
         private const string PackageFoldersProperty = "packageFolders";
         private const string DependencyProperty = "dependencies";
@@ -89,7 +92,7 @@ public override bool Execute()
                 AssemblyName = string.IsNullOrEmpty(this.AssemblyName) ? Path.GetFileName(this.AssemblyFullPath) : this.AssemblyName,
                 CompilationAssemblies = GetCompilationAssemblies(this.ResolvedReferences),
                 CompilationItems = this.CompilationItems.Select(i => i.ItemSpec),
-                PackageDependencies = GetPackageDependencies(this.ProjectAssetsFile),
+                PackageDependencies = GetPackageDependencies(this.ProjectAssetsFile, this.TargetFramework, this.TargetFrameworkMoniker),
                 Config = this.AssemblyFullPath + ".config",
                 Configuration = this.Configuration,
                 DepsFile = this.ProjectDepsFileName,
@@ -119,14 +122,20 @@ public override bool Execute()
             return true;
         }
 
-        private IEnumerable<DependencyDescription> GetPackageDependencies(string projectAssetsFile)
+        internal static IEnumerable<DependencyDescription> GetPackageDependencies(string projectAssetsFile, string tfm, string tfmMoniker)
         {
             IList<DependencyDescription> packageDependencies = new List<DependencyDescription>();
-            if (!string.IsNullOrEmpty(projectAssetsFile) && File.Exists(projectAssetsFile) && !string.IsNullOrEmpty(TargetFramework))
+            if (!string.IsNullOrEmpty(projectAssetsFile) && File.Exists(projectAssetsFile) && !string.IsNullOrEmpty(tfm))
             {
                 //target framework moniker for the current project. We use this to get all targets for said moniker.
-                var targetFramework = TargetFramework;
-                var targetFrameworkMoniker = TargetFrameworkMoniker;
+                var targetFramework = tfm;
+                var targetFrameworkMoniker = tfmMoniker;
+                if (string.IsNullOrEmpty(targetFrameworkMoniker))
+                {
+                    //if targetFrameworkMoniker is null, targetFramework is the TargetFrameworkMoniker (issue w/ IProjectContext sent from VS)
+                    targetFrameworkMoniker = tfm;
+                    targetFramework = ProjectModelHelper.GetShortTfm(tfm);
+                }
                 string json = File.ReadAllText(projectAssetsFile);
                 if (!string.IsNullOrEmpty(json) && !string.IsNullOrEmpty(targetFrameworkMoniker))
                 {
@@ -159,7 +168,29 @@ private IEnumerable<DependencyDescription> GetPackageDependencies(string project
             return packageDependencies;
         }
 
-        private IList<DependencyDescription> DeserializePackages(JsonElement packages, JsonElement packageFolderPath, string targetFrameworkMoniker)
+        internal static IEnumerable<ResolvedReference> GetScaffoldingAssemblies(IEnumerable<DependencyDescription> dependencies)
+        {
+            var compilationAssemblies = new List<ResolvedReference>();
+            foreach (var item in dependencies)
+            {
+                //only add Microsoft.EntityFrameworkCore.* or Microsoft.AspNetCore.Identity.* assemblies. Any others might be duplicates which cause in-memory compilation errors and those are the assemblies we care about.
+                if (item.Name.Contains(EntityFrameworkCore, StringComparison.OrdinalIgnoreCase) || item.Name.Contains(AspNetCoreIdentity, StringComparison.OrdinalIgnoreCase))
+                {
+                    var name = $"{item.Name}.dll";
+                    //costly search but we're only doing it a handful of times.
+                    var file = Directory.GetFiles(item.Path, name, SearchOption.AllDirectories).FirstOrDefault();
+                    if (file != null)
+                    {
+                        var resolvedPath = file.ToString();
+                        var reference = new ResolvedReference(name, resolvedPath);
+                        compilationAssemblies.Add(reference);
+                    }
+                }
+            }
+            return compilationAssemblies;
+        }
+
+        private static IList<DependencyDescription> DeserializePackages(JsonElement packages, JsonElement packageFolderPath, string targetFrameworkMoniker)
         {
             IList<DependencyDescription> packageDependencies = new List<DependencyDescription>();
             var packagesEnumerator = packages.EnumerateObject();
@@ -172,7 +203,7 @@ private IList<DependencyDescription> DeserializePackages(JsonElement packages, J
                 if (!string.IsNullOrEmpty(fullName) && !string.IsNullOrEmpty(path) && package.Value.TryGetProperty(TypeProperty, out var type))
                 {
                     //fullName is in the format {Package Name}/{Version} for example "System.Text.MoreText/2.1.1" Split into tuple. 
-                    Tuple<string, string> nameAndVersion = GetName(fullName);
+                    Tuple<string, string> nameAndVersion = ProjectContextWriter.GetName(fullName);
                     if (nameAndVersion != null)
                     {
                         var dependencyTypeValue = type.ToString();
@@ -182,7 +213,7 @@ private IList<DependencyDescription> DeserializePackages(JsonElement packages, J
                             DependencyTypeEnum = (DependencyType)dependencyType;
                         }
 
-                        string packagePath = GetPath(path, nameAndVersion);
+                        string packagePath = ProjectContextWriter.GetPath(path, nameAndVersion);
                         DependencyDescription dependency = new DependencyDescription(nameAndVersion.Item1,
                                                                                         nameAndVersion.Item2,
                                                                                         Directory.Exists(packagePath) ? packagePath : string.Empty,
@@ -210,7 +241,7 @@ private IList<DependencyDescription> DeserializePackages(JsonElement packages, J
             return packageDependencies;
         }
 
-        internal string GetPath(string nugetPath, Tuple<string, string> nameAndVersion)
+        internal static string GetPath(string nugetPath, Tuple<string, string> nameAndVersion)
         {
             string path = string.Empty;
             if (!string.IsNullOrEmpty(nugetPath) && !string.IsNullOrEmpty(nameAndVersion.Item1) && !string.IsNullOrEmpty(nameAndVersion.Item2))
@@ -222,7 +253,7 @@ internal string GetPath(string nugetPath, Tuple<string, string> nameAndVersion)
             return path;
         }
 
-        private Tuple<string, string> GetName(string fullName)
+        private static Tuple<string, string> GetName(string fullName)
         {
             Tuple<string, string> nameAndVersion = null;
             if (!string.IsNullOrEmpty(fullName))

src/Scaffolding/VS.Web.CG.Mvc/Common/EFValidationUtil.cs

@@ -12,21 +12,27 @@ internal static class EFValidationUtil
     {
         const string EfDesignPackageName = "Microsoft.EntityFrameworkCore.Design";
         const string SqlServerPackageName = "Microsoft.EntityFrameworkCore.SqlServer";
+        const string SqlitePackageName = "Microsoft.EntityFrameworkCore.Sqlite";
 
-        internal static void ValidateEFDependencies(IEnumerable<DependencyDescription> dependencies, bool useSqlite, bool calledFromCommandline)
+        internal static void ValidateEFDependencies(IEnumerable<DependencyDescription> dependencies, bool useSqlite)
         {
             var isEFDesignPackagePresent = dependencies
                 .Any(package => package.Name.Equals(EfDesignPackageName, StringComparison.OrdinalIgnoreCase));
 
-            if (!isEFDesignPackagePresent && calledFromCommandline)
+            if (!isEFDesignPackagePresent)
             {
-                 throw new InvalidOperationException(
+                throw new InvalidOperationException(
                     string.Format(MessageStrings.InstallEfPackages, $"{EfDesignPackageName}"));
             }
-            if (!useSqlite)
+            if (useSqlite)
+            {
+                ValidateSqliteDependency(dependencies);
+            }
+            else
             {
                 ValidateSqlServerDependency(dependencies);
-            } 
+            }
+
         }
 
         internal static void ValidateSqlServerDependency(IEnumerable<DependencyDescription> dependencies)
@@ -40,5 +46,17 @@ internal static void ValidateSqlServerDependency(IEnumerable<DependencyDescripti
                     string.Format(MessageStrings.InstallSqlPackage, $"{SqlServerPackageName}."));
             }
         }
+
+        internal static void ValidateSqliteDependency(IEnumerable<DependencyDescription> dependencies)
+        {
+            var isSqlServerPackagePresent = dependencies
+                .Any(package => package.Name.Equals(SqlitePackageName, StringComparison.OrdinalIgnoreCase));
+
+            if (!isSqlServerPackagePresent)
+            {
+                throw new InvalidOperationException(
+                    string.Format(MessageStrings.InstallSqlPackage, $"{SqlitePackageName}."));
+            }
+        }
     }
 }

src/Scaffolding/VS.Web.CG.Mvc/Controller/ControllerWithContextGenerator.cs

@@ -59,7 +59,12 @@ public override async Task Generate(CommandLineGeneratorModel controllerGenerato
         {
             Contract.Assert(!String.IsNullOrEmpty(controllerGeneratorModel.ModelClass));
             ValidateNameSpaceName(controllerGeneratorModel);
-            EFValidationUtil.ValidateEFDependencies(ProjectContext.PackageDependencies, controllerGeneratorModel.UseSqlite, CalledFromCommandline);
+
+            if (!CalledFromCommandline)
+            {
+                EFValidationUtil.ValidateEFDependencies(ProjectContext.PackageDependencies, controllerGeneratorModel.UseSqlite);
+            }
+
             string outputPath = ValidateAndGetOutputPath(controllerGeneratorModel);
             _areaName = GetAreaName(ApplicationInfo.ApplicationBasePath, outputPath);
 

src/Scaffolding/VS.Web.CG.Mvc/RazorPage/EFModelBasedRazorPageScaffolder.cs

@@ -79,7 +79,10 @@ public override async Task GenerateCode(RazorPageGeneratorModel razorGeneratorMo
 
             var outputPath = ValidateAndGetOutputPath(razorGeneratorModel, outputFileName: razorGeneratorModel.RazorPageName + Constants.ViewExtension);
 
-            EFValidationUtil.ValidateEFDependencies(_projectContext.PackageDependencies, razorGeneratorModel.UseSqlite, CalledFromCommandline);
+            if (!CalledFromCommandline)
+            {
+                EFValidationUtil.ValidateEFDependencies(_projectContext.PackageDependencies, razorGeneratorModel.UseSqlite);
+            }
 
             ModelTypeAndContextModel modelTypeAndContextModel = await ModelMetadataUtilities.ValidateModelAndGetEFMetadata(
                 razorGeneratorModel,
@@ -134,8 +137,11 @@ internal async Task GenerateViews(RazorPageGeneratorModel razorPageGeneratorMode
             ModelTypeAndContextModel modelTypeAndContextModel = null;
             string outputPath = ValidateAndGetOutputPath(razorPageGeneratorModel, string.Empty);
 
-            EFValidationUtil.ValidateEFDependencies(_projectContext.PackageDependencies, razorPageGeneratorModel.UseSqlite, CalledFromCommandline);
-
+            if (!CalledFromCommandline)
+            {
+                EFValidationUtil.ValidateEFDependencies(_projectContext.PackageDependencies, razorPageGeneratorModel.UseSqlite);
+            }
+
             modelTypeAndContextModel = await ModelMetadataUtilities.ValidateModelAndGetEFMetadata(
                 razorPageGeneratorModel,
                 _entityFrameworkService,

src/Scaffolding/VS.Web.CG.Mvc/View/EFModelBasedViewScaffolder.cs

@@ -63,7 +63,11 @@ public override async Task GenerateCode(ViewGeneratorModel viewGeneratorModel)
             ModelTypeAndContextModel modelTypeAndContextModel = null;
             var outputPath = ValidateAndGetOutputPath(viewGeneratorModel, outputFileName: viewGeneratorModel.ViewName + Constants.ViewExtension);
 
-            EFValidationUtil.ValidateEFDependencies(_projectContext.PackageDependencies, viewGeneratorModel.UseSqlite, !string.IsNullOrEmpty(_projectContext.TargetFrameworkMoniker));
+            if (!string.IsNullOrEmpty(_projectContext.TargetFrameworkMoniker))
+            {
+                EFValidationUtil.ValidateEFDependencies(_projectContext.PackageDependencies, viewGeneratorModel.UseSqlite);
+            }
+
 
             modelTypeAndContextModel = await ModelMetadataUtilities.ValidateModelAndGetEFMetadata(
                 viewGeneratorModel,

src/Shared/Microsoft.DotNet.Scaffolding.Shared/Microsoft.DotNet.Scaffolding.Shared.csproj

@@ -24,6 +24,7 @@
     <PackageReference Include="Microsoft.CodeAnalysis.VisualBasic.Workspaces" Version="$(CodeAnalysisVersion)" />
     <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="$(CodeAnalysisVersion)" />
     <PackageReference Include="Microsoft.Build" Version="$(MicrosoftBuildPackageVersion)" />
+    <PackageReference Include="Microsoft.Build.Utilities.Core" PrivateAssets="All" Version="$(MicrosoftBuildUtilitiesCorePackageVersion)" />
     <PackageReference Include="Microsoft.Build.Tasks.Core" Version="$(MicrosoftBuildPackageVersion)" />
     <PackageReference Include="NuGet.ProjectModel" Version="$(NuGetProjectModelVersion)" />
   </ItemGroup>
@@ -34,6 +35,12 @@
       <AutoGen>True</AutoGen>
       <DependentUpon>MessageStrings.resx</DependentUpon>
     </Compile>
+    <Compile Include="$(RepoRoot)\src\Scaffolding\VS.Web.CG.Msbuild\ProjectContextWriter.cs">
+      <Link>Scaffolding\%(RecursiveDir)%(FileName)</Link>
+    </Compile>
+    <Compile Include="$(RepoRoot)\src\Scaffolding\VS.Web.CG.Msbuild\ProjectReferenceInformationProvider.cs">
+      <Link>Scaffolding\%(RecursiveDir)%(FileName)</Link>
+    </Compile>
   </ItemGroup>
 
   <ItemGroup>

src/Shared/Microsoft.DotNet.Scaffolding.Shared/ProjectModel/ProjectContextExtensions.cs

@@ -0,0 +1,67 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Linq;
+using System.Collections.Generic;
+using Microsoft.VisualStudio.Web.CodeGeneration.Msbuild;
+using Microsoft.VisualStudio.Web.CodeGeneration.Utils;
+
+namespace Microsoft.DotNet.Scaffolding.Shared.ProjectModel
+{
+    public static class ProjectContextExtensions
+    {
+        public static DependencyDescription GetPackage(this IProjectContext context, string name)
+        {
+            Requires.NotNullOrEmpty(name, nameof(name));
+            Requires.NotNull(context, nameof(context));
+
+            return context.PackageDependencies.FirstOrDefault(package => package.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
+        }
+
+        public static IEnumerable<DependencyDescription> GetReferencingPackages(this IProjectContext context, string name)
+        {
+            Requires.NotNullOrEmpty(name, nameof(name));
+            Requires.NotNull(context, nameof(context));
+
+            return context
+                .PackageDependencies
+                .Where(package => package
+                    .Dependencies
+                    .Any(dep => dep.Name.Equals(name, StringComparison.OrdinalIgnoreCase)));
+        }
+        public static IProjectContext AddPackageDependencies(this IProjectContext projectInformation, string projectAssetsFile)
+        {
+            //get project assets file
+            var packageDependencies = ProjectContextWriter.GetPackageDependencies(projectAssetsFile, projectInformation.TargetFramework, projectInformation.TargetFrameworkMoniker);
+            var additionalCompilation = ProjectContextWriter.GetScaffoldingAssemblies(packageDependencies).ToList();
+            var compilationList = projectInformation.CompilationAssemblies.ToList();
+            compilationList.AddRange(additionalCompilation);
+            var newProjectContext = new CommonProjectContext()
+            {
+                AssemblyFullPath = projectInformation.AssemblyFullPath,
+                AssemblyName = projectInformation.AssemblyName,
+                CompilationAssemblies = compilationList,
+                CompilationItems = projectInformation.CompilationItems,
+                PackageDependencies = packageDependencies,
+                Config = projectInformation.Config,
+                Configuration = projectInformation.Configuration,
+                DepsFile = projectInformation.DepsFile,
+                EmbededItems = projectInformation.EmbededItems,
+                IsClassLibrary = projectInformation.IsClassLibrary,
+                Platform = projectInformation.Platform,
+                ProjectFullPath = projectInformation.ProjectFullPath,
+                ProjectName = projectInformation.ProjectName,
+                ProjectReferences = projectInformation.ProjectReferences,
+                RootNamespace = projectInformation.RootNamespace,
+                RuntimeConfig = projectInformation.RuntimeConfig,
+                TargetDirectory = projectInformation.TargetDirectory,
+                TargetFramework = projectInformation.TargetFramework,
+                TargetFrameworkMoniker = projectInformation.TargetFrameworkMoniker,
+                GeneratedImplicitNamespaceImportFile = projectInformation.GeneratedImplicitNamespaceImportFile
+            };
+            return newProjectContext;
+        }
+
+    }
+}