fix pack targets to add tfm metadata to output lib files

src/NuGet.Core/NuGet.Build.Tasks.Pack.Library/IPackTaskRequest.cs

@@ -18,6 +18,7 @@ public interface IPackTaskRequest<TItem>
         string AssemblyName { get; }
         TItem[] AssemblyReferences { get; }
         string[] Authors { get; }
+        TItem[] BuildOutputInPackage { get; }
         string BuildOutputFolder { get; }
         string[] ContentTargetFolders { get; }
         bool ContinuePackingAfterGeneratingNuspec { get; }
@@ -53,8 +54,7 @@ public interface IPackTaskRequest<TItem>
         TItem[] SourceFiles { get; }
         string[] Tags { get; }
         string[] TargetFrameworks { get; }
-        string[] TargetPathsToAssemblies { get; }
-        string[] TargetPathsToSymbols { get; }
+        TItem[] TargetPathsToSymbols { get; }
         string Title { get; }
     }
 }

src/NuGet.Core/NuGet.Build.Tasks.Pack.Library/Pack.targets

@@ -46,6 +46,14 @@ Copyright (c) .NET Foundation. All rights reserved.
     <_TargetFrameworks Condition="'$(TargetFramework)' == ''" Include="$(TargetFrameworks.Split(';'))"/>
     <_TargetFrameworks Condition="'$(TargetFramework)' != ''" Include="$(TargetFramework)"/>
   </ItemGroup>
+  <ItemDefinitionGroup>
+    <BuildOutputInPackage>
+      <TargetFramework>$(TargetFramework)</TargetFramework>
+    </BuildOutputInPackage>
+    <TfmSpecificPackageFile>
+      <BuildAction>None</BuildAction>
+    </TfmSpecificPackageFile>
+  </ItemDefinitionGroup>
 
   <!--
     ============================================================
@@ -93,8 +101,8 @@ Copyright (c) .NET Foundation. All rights reserved.
       <NuGetPackInput Include="$(MSBuildAllProjects)"/>
       <NuGetPackInput Include="@(_PackageFiles)"/>
       <NuGetPackInput Include="@(_PackageFilesToExclude)"/>
-      <NuGetPackInput Include="@(_TargetPathsToAssemblies->'%(FinalOutputPath)')"/>
-      <NuGetPackInput Include="@(_TargetPathsToSymbols)"/>
+      <NuGetPackInput Include="@(_BuildOutputInPackage->'%(FinalOutputPath)')"/>
+      <NuGetPackInput Include="@(_TargetPathsToSymbols->'%(FinalOutputPath)')"/>
       <NuGetPackInput Include="@(_SourceFiles)"/>
       <NuGetPackInput Include="@(_References)"/>
       <NuGetPackOutput Include="$(RestoreOutputAbsolutePath)$(PackageId).$(PackageVersion).nuspec"/>
@@ -144,7 +152,7 @@ Copyright (c) .NET Foundation. All rights reserved.
               IconUrl="$(PackageIconUrl)"
               ReleaseNotes="$(PackageReleaseNotes)"
               Tags="$(PackageTags)"
-              TargetPathsToAssemblies="@(_TargetPathsToAssemblies->'%(FinalOutputPath)')"
+              BuildOutputInPackage="@(_BuildOutputInPackage)"
               TargetPathsToSymbols="@(_TargetPathsToSymbols)"
               TargetFrameworks="@(_TargetFrameworks)"
               AssemblyName="$(AssemblyName)"
@@ -193,21 +201,30 @@ Copyright (c) .NET Foundation. All rights reserved.
     <MSBuild
       Condition="'$(IncludeBuildOutput)' == 'true'"
       Projects="$(MSBuildProjectFullPath)"
-      Targets="BuiltProjectOutputGroup;DocumentationProjectOutputGroup;_AddPriFileToPackBuildOutput"
-      Properties="TargetFramework=%(_TargetFrameworks.Identity);
-                  BuildProjectReferences=false;">
+      Targets="_GetBuildOutputFilesWithTfm"
+      Properties="TargetFramework=%(_TargetFrameworks.Identity);">
 
       <Output
           TaskParameter="TargetOutputs"
-          ItemName="_TargetPathsToAssemblies" />
+          ItemName="_BuildOutputInPackage" />
     </MSBuild>
 
+    <MSBuild
+      Condition="'$(TargetsForTfmSpecificContentInPackage)' != ''"
+      Projects="$(MSBuildProjectFullPath)"
+      Targets="_GetTfmSpecificContentForPackage"
+      Properties="TargetFramework=%(_TargetFrameworks.Identity);">
+
+    <Output
+        TaskParameter="TargetOutputs"
+        ItemName="_PackageFiles"/>
+    </MSBuild>
+
     <MSBuild
       Condition="'$(IncludeSymbols)' == 'true' OR '$(IncludeSource)' == 'true'"
       Projects="$(MSBuildProjectFullPath)"
-      Targets="DebugSymbolsProjectOutputGroup"
-      Properties="TargetFramework=%(_TargetFrameworks.Identity);
-                  BuildProjectReferences=false;">
+      Targets="_GetDebugSymbolsWithTfm"
+      Properties="TargetFramework=%(_TargetFrameworks.Identity);">
 
       <Output
           TaskParameter="TargetOutputs"
@@ -227,6 +244,32 @@ Copyright (c) .NET Foundation. All rights reserved.
     </MSBuild>
   </Target>
 
+  <Target Name="_GetBuildOutputFilesWithTfm"
+          DependsOnTargets="BuiltProjectOutputGroup;DocumentationProjectOutputGroup;SatelliteDllsProjectOutputGroup;_AddPriFileToPackBuildOutput;$(TargetsForTfmSpecificBuildOutput)"
+          Returns="@(BuildOutputInPackage)">
+    <ItemGroup>
+      <BuildOutputInPackage Include="@(SatelliteDllsProjectOutputGroupOutput);
+                            @(BuiltProjectOutputGroupOutput);
+                            @(DocumentationProjectOutputGroupOutput);
+                            @(_PathToPriFile)"/>
+    </ItemGroup>
+  </Target>
+
+  <Target Name="_GetTfmSpecificContentForPackage"
+          DependsOnTargets="$(TargetsForTfmSpecificContentInPackage)"
+          Returns="@(TfmSpecificPackageFile)">
+  </Target>
+
+  <Target Name="_GetDebugSymbolsWithTfm"
+          DependsOnTargets="DebugSymbolsProjectOutputGroup"
+          Returns="@(_TargetPathsToSymbolsWithTfm)">
+    <ItemGroup>
+      <_TargetPathsToSymbolsWithTfm Include="@(DebugSymbolsProjectOutputGroupOutput)">
+        <TargetFramework>$(TargetFramework)</TargetFramework>
+      </_TargetPathsToSymbolsWithTfm>
+    </ItemGroup>
+  </Target>
+
   <!--Projects with target framework like UWP, Win8, wpa81 produce a Pri file
     in their bin dir. This Pri file is not included in the BuiltProjectGroupOutput, and
     has to be added manually here.-->
@@ -235,6 +278,7 @@ Copyright (c) .NET Foundation. All rights reserved.
     <ItemGroup Condition="'$(IncludeProjectPriFile)' == 'true'">
       <_PathToPriFile Include="$(ProjectPriFullPath)">
         <FinalOutputPath>$(ProjectPriFullPath)</FinalOutputPath>
+        <TargetPath>$(ProjectPriFileName)</TargetPath>
       </_PathToPriFile>
     </ItemGroup>
   </Target>

src/NuGet.Core/NuGet.Build.Tasks.Pack.Library/PackTask.cs

@@ -17,6 +17,7 @@ public class PackTask : Microsoft.Build.Utilities.Task, IPackTaskRequest<ITaskIt
         public ITaskItem[] PackageFilesToExclude { get; set; }
         public string[] TargetFrameworks { get; set; }
         public string[] PackageTypes { get; set; }
+        public ITaskItem[] BuildOutputInPackage { get; set; }
         public string PackageId { get; set; }
         public string PackageVersion { get; set; }
         public string Title { get; set; }
@@ -30,8 +31,7 @@ public class PackTask : Microsoft.Build.Utilities.Task, IPackTaskRequest<ITaskIt
         public string IconUrl { get; set; }
         public string[] Tags { get; set; }
         public string ReleaseNotes { get; set; }
-        public string[] TargetPathsToAssemblies { get; set; }
-        public string[] TargetPathsToSymbols { get; set; }
+        public ITaskItem[] TargetPathsToSymbols { get; set; }
         public string AssemblyName { get; set; }
         public string PackageOutputPath { get; set; }
         public bool IsTool { get; set; }
@@ -110,6 +110,7 @@ private IPackTaskRequest<IMSBuildItem> GetRequest()
                 AssemblyName = MSBuildStringUtility.TrimAndGetNullForEmpty(AssemblyName),
                 AssemblyReferences = MSBuildUtility.WrapMSBuildItem(AssemblyReferences),
                 Authors = MSBuildStringUtility.TrimAndExcludeNullOrEmpty(Authors),
+                BuildOutputInPackage = MSBuildUtility.WrapMSBuildItem(BuildOutputInPackage),
                 BuildOutputFolder = MSBuildStringUtility.TrimAndGetNullForEmpty(BuildOutputFolder),
                 ContinuePackingAfterGeneratingNuspec = ContinuePackingAfterGeneratingNuspec,
                 ContentTargetFolders = MSBuildStringUtility.TrimAndExcludeNullOrEmpty(ContentTargetFolders),
@@ -145,8 +146,7 @@ private IPackTaskRequest<IMSBuildItem> GetRequest()
                 SourceFiles = MSBuildUtility.WrapMSBuildItem(SourceFiles),
                 Tags = MSBuildStringUtility.TrimAndExcludeNullOrEmpty(Tags),
                 TargetFrameworks = MSBuildStringUtility.TrimAndExcludeNullOrEmpty(TargetFrameworks),
-                TargetPathsToAssemblies = MSBuildStringUtility.TrimAndExcludeNullOrEmpty(TargetPathsToAssemblies),
-                TargetPathsToSymbols = MSBuildStringUtility.TrimAndExcludeNullOrEmpty(TargetPathsToSymbols),
+                TargetPathsToSymbols = MSBuildUtility.WrapMSBuildItem(TargetPathsToSymbols),
                 Title = MSBuildStringUtility.TrimAndGetNullForEmpty(Title),
             };
         }

src/NuGet.Core/NuGet.Build.Tasks.Pack.Library/PackTaskLogic.cs

@@ -33,8 +33,8 @@ public PackArgs GetPackArgs(IPackTaskRequest<IMSBuildItem> request)
                 NoPackageAnalysis = request.NoPackageAnalysis,
                 PackTargetArgs = new MSBuildPackTargetArgs
                 {
-                    TargetPathsToAssemblies = GetTargetPathsToAssemblies(request),
-                    TargetPathsToSymbols = request.TargetPathsToSymbols,
+                    TargetPathsToAssemblies = InitLibFiles(request.BuildOutputInPackage),
+                    TargetPathsToSymbols = InitLibFiles(request.TargetPathsToSymbols),
                     AssemblyName = request.AssemblyName,
                     IncludeBuildOutput = request.IncludeBuildOutput,
                     BuildOutputFolder = request.BuildOutputFolder,
@@ -200,19 +200,48 @@ public void BuildPackage(PackCommandRunner runner)
             runner.BuildPackage();
         }
 
-        private string[] GetTargetPathsToAssemblies(IPackTaskRequest<IMSBuildItem> request)
+        private IEnumerable<OutputLibFile> InitLibFiles(IMSBuildItem[] libFiles)
         {
-            if (request.TargetPathsToAssemblies == null)
+            var assemblies = new List<OutputLibFile>();
+            if (libFiles == null)
             {
-                return new string[0];
+                return assemblies;
             }
 
-            return request.TargetPathsToAssemblies
-                .Where(path => path != null)
-                .Select(path => path.Trim())
-                .Where(path => path != string.Empty)
-                .Distinct()
-                .ToArray();
+
+            foreach (var assembly in libFiles)
+            {
+                var finalOutputPath = assembly.GetProperty("FinalOutputPath");
+                var targetPath = assembly.GetProperty("TargetPath");
+                var targetFramework = assembly.GetProperty("TargetFramework");
+
+                if (!File.Exists(finalOutputPath))
+                {
+                    throw new FileNotFoundException(string.Format(CultureInfo.CurrentCulture, Strings.Error_FileNotFound, finalOutputPath));
+                }
+
+                // If target path is not set, default it to the file name. Only satellite DLLs have a special target path
+                // where culture is part of the target path. This condition holds true for files like runtimeconfig.json file
+                // in netcore projects.
+                if (targetPath == null)
+                {
+                    targetPath = Path.GetFileName(finalOutputPath);
+                }
+
+                if (string.IsNullOrEmpty(targetFramework) || NuGetFramework.Parse(targetFramework).IsSpecificFramework == false)
+                {
+                    throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, Strings.InvalidTargetFramework, finalOutputPath));
+                }
+
+                assemblies.Add(new OutputLibFile()
+                {
+                    FinalOutputPath = finalOutputPath,
+                    TargetPath = targetPath,
+                    TargetFramework = targetFramework
+                });
+            }
+
+            return assemblies;
         }
 
         private ISet<NuGetFramework> ParseFrameworks(IPackTaskRequest<IMSBuildItem> request)
@@ -285,12 +314,12 @@ private void InitNuspecOutputPath(IPackTaskRequest<IMSBuildItem> request, PackAr
             }
         }
 
-        private Dictionary<string, HashSet<ContentMetadata>> ProcessContentToIncludeInPackage(
+        private Dictionary<string, IEnumerable<ContentMetadata>> ProcessContentToIncludeInPackage(
             IPackTaskRequest<IMSBuildItem> request,
             PackArgs packArgs)
         {
             // This maps from source path on disk to target path inside the nupkg.
-            var fileModel = new Dictionary<string, HashSet<ContentMetadata>>();
+            var fileModel = new Dictionary<string, IEnumerable<ContentMetadata>>();
             if (request.PackageFiles != null)
             {
                 var excludeFiles = CalculateFilesToExcludeInPack(request);
@@ -307,11 +336,11 @@ private Dictionary<string, HashSet<ContentMetadata>> ProcessContentToIncludeInPa
                     if (fileModel.ContainsKey(sourcePath))
                     {
                         var existingContentMetadata = fileModel[sourcePath];
-                        existingContentMetadata.AddRange(totalContentMetadata);
+                        fileModel[sourcePath] = existingContentMetadata.Concat(totalContentMetadata);
                     }
                     else
                     {
-                        var existingContentMetadata = new HashSet<ContentMetadata>();
+                        var existingContentMetadata = new List<ContentMetadata>();
                         existingContentMetadata.AddRange(totalContentMetadata);
                         fileModel.Add(sourcePath, existingContentMetadata);
                     }
@@ -437,7 +466,7 @@ private IEnumerable<ContentMetadata> GetContentMetadata(IMSBuildItem packageFile
             // we take the final set of evaluated target paths and append the file name to it if not
             // already done. we check whether the extension of the target path is the same as the extension
             // of the source path and add the filename accordingly.
-            var totalSetOfTargetPaths = new HashSet<string>(StringComparer.Ordinal);
+            var totalSetOfTargetPaths = new List<string>();
             foreach (var targetPath in setOfTargetPaths)
             {
                 var currentPath = targetPath;

src/NuGet.Core/NuGet.Build.Tasks.Pack.Library/PackTaskRequest.cs

@@ -11,6 +11,7 @@ public class PackTaskRequest : IPackTaskRequest<IMSBuildItem>
         public string AssemblyName { get; set; }
         public IMSBuildItem[] AssemblyReferences { get; set; }
         public string[] Authors { get; set; }
+        public IMSBuildItem[] BuildOutputInPackage { get; set; }
         public string BuildOutputFolder { get; set; }
         public string[] ContentTargetFolders { get; set; }
         public bool ContinuePackingAfterGeneratingNuspec { get; set; }
@@ -46,8 +47,7 @@ public class PackTaskRequest : IPackTaskRequest<IMSBuildItem>
         public IMSBuildItem[] SourceFiles { get; set; }
         public string[] Tags { get; set; }
         public string[] TargetFrameworks { get; set; }
-        public string[] TargetPathsToAssemblies { get; set; }
-        public string[] TargetPathsToSymbols { get; set; }
+        public IMSBuildItem[] TargetPathsToSymbols { get; set; }
         public string Title { get; set; }
     }
 }

src/NuGet.Core/NuGet.Build.Tasks.Pack.Library/Strings.resx

@@ -125,6 +125,10 @@
     <value>The assets file produced by restore does not exist. Try restoring the project again. The expected location of the assets file is {0}.</value>
     <comment>{0} is the path to the assets file.</comment>
   </data>
+  <data name="Error_FileNotFound" xml:space="preserve">
+    <value>The file '{0}' to be packed was not found on disk.</value>
+    <comment>{0} is the file being packed.</comment>
+  </data>
   <data name="InvalidMinClientVersion" xml:space="preserve">
     <value>MinClientVersion string specified '{0}' is invalid.</value>
     <comment>{0} is the version.</comment>
@@ -140,6 +144,9 @@
     <value>PackageVersion string specified '{0}' is invalid.</value>
     <comment>{0} is the version.</comment>
   </data>
+  <data name="InvalidTargetFramework" xml:space="preserve">
+    <value>Invalid target framework for the file '{0}'.</value>
+  </data>
   <data name="NoPackItemProvided" xml:space="preserve">
     <value>No project was provided to the PackTask.</value>
   </data>

src/NuGet.Core/NuGet.Commands/MSBuildPackTargetArgs.cs

@@ -9,12 +9,11 @@ namespace NuGet.Commands
 {
     public class MSBuildPackTargetArgs
     {
-        public string[] TargetPathsToSymbols { get; set; }
-        public string[] TargetPathsToAssemblies { get; set; }
+        public IEnumerable<OutputLibFile> TargetPathsToSymbols { get; set; } 
+        public IEnumerable<OutputLibFile> TargetPathsToAssemblies { get; set; }
         public string AssemblyName { get; set; }
         public string NuspecOutputPath { get; set; }
-        public IEnumerable<ProjectToProjectReference>  ProjectReferences { get; set; }
-        public Dictionary<string, HashSet<ContentMetadata>> ContentFiles { get; set; }
+        public Dictionary<string, IEnumerable<ContentMetadata>> ContentFiles { get; set; }
         public ISet<NuGetFramework> TargetFrameworks { get; set; }
         public IDictionary<string, string> SourceFiles { get; set; }
         public bool IncludeBuildOutput { get; set; }
@@ -23,14 +22,28 @@ public class MSBuildPackTargetArgs
 
         public MSBuildPackTargetArgs()
         {
-            ProjectReferences = new List<ProjectToProjectReference>();
             SourceFiles = new Dictionary<string, string>();
+            TargetPathsToAssemblies = new List<OutputLibFile>();
+            TargetPathsToSymbols = new List<OutputLibFile>();
         }
     }
 
-    public struct ProjectToProjectReference
+    public struct OutputLibFile
     {
-        public string AssemblyName { get; set; }
+        /// <summary>
+        /// This is the final output path of the assembly on disk as set by msbuild.
+        /// </summary>
+        public string FinalOutputPath { get; set; }
+
+        /// <summary>
+        /// This denotes the TargetPath as set by msbuild. Usually this is just the file name, but for satellite DLLs,
+        /// this is Culture\filename.
+        ///  </summary>
         public string TargetPath { get; set; }
+
+        /// <summary>
+        /// This is the target framework for which this assembly was built.
+        /// </summary>
+        public string TargetFramework { get; set; }
     }
 }