MARKUS

<!--

***********************************************************************************************

Microsoft.Bcl.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have

          created a backup copy.  Incorrect changes to this file will make it

          impossible to load or build your projects from the command-line or the IDE.

Copyright (C) Microsoft Corporation. All rights reserved.

***********************************************************************************************

-->

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

  <PropertyGroup>

    <BclBuildImported>true</BclBuildImported>

  </PropertyGroup>

  <PropertyGroup Condition="'$(TargetFrameworkIdentifier)' != 'Silverlight' and '$(OutputType)' != 'AppContainerExe'">

    <!-- 

      Workaround MSBuild issue that prevents System.Runtime 2.5 and System.Threading.Tasks 2.5 from

      satisfying indirect dependencies on System.Runtime 1.5 and System.Threading.Tasks 1.5 respectively.  

    -->

    <AutoUnifyAssemblyReferences>false</AutoUnifyAssemblyReferences>

    <!-- MSBuild by default doesn't pass the Web.Config ResolveAssemblyReference, in which case, set it so that it sees binding redirects -->

    <AppConfig Condition="'$(AppConfig)' == '' And '$(WebProjectOutputDir)' != '' And Exists('$(ProjectConfigFileName)')">$(ProjectConfigFileName)</AppConfig>

  </PropertyGroup>

  <!-- Workaround issue that incorrectly unifies references not in the current profile to the version in the superset of all profiles. -->

  <Target Name="_BclBuildSetFullFrameworkFolderToProfile" AfterTargets="GetReferenceAssemblyPaths" Condition="'$(TargetFrameworkIdentifier)' == '.NETPortable'">

    <PropertyGroup>

      <_FullFrameworkReferenceAssemblyPaths>$(TargetFrameworkDirectory)</_FullFrameworkReferenceAssemblyPaths>

    </PropertyGroup>

  </Target>

  <!--

    *******************************************************************************************************************

    *******************************************************************************************************************

                                                                                         EnsureBindingRedirects Section

    *******************************************************************************************************************

    *******************************************************************************************************************

    -->

  <PropertyGroup>

    <__IntermediateAppConfig>$(IntermediateOutputPath)$(MSBuildProjectFile).App.config</__IntermediateAppConfig>

    <SkipEnsureBindingRedirects Condition="'$(TargetFrameworkIdentifier)' == 'Silverlight' or '$(OutputType)' == 'AppContainerExe'">true</SkipEnsureBindingRedirects>

    <!-- Default logic is to use existing Bcl.Build code for any binding redirects which are not now supported by the     

    framework functionality which is controlled by existing MSBUILD properties, that were added in Dev12

    Supported Dev12 scenarios are:

    Project Output Type exe, winexe

    <AutoGenerateBindingRedirects> in project file set to true    

    All others outside of this should continue to use existing mechanism in BCL.Build to ensure behavioural compatbility 

    for output types. -->

    <SkipEnsureBindingRedirects Condition="'$(SkipEnsureBindingRedirects)' == ''">false</SkipEnsureBindingRedirects>

    <SkipEnsureBindingRedirects Condition="'$(AutoGenerateBindingRedirects)' =='true' and '$(GenerateBindingRedirectsOutputType)' == 'true'">true</SkipEnsureBindingRedirects>

  </PropertyGroup>

  <!-- we haven't already been told to skip binding redirects, the project supports bindingredirect generation, and hasn't yet opted-in, force the opt in and disable our own bindingRedirect generation. -->

  <PropertyGroup Condition="'$(SkipEnsureBindingRedirects)' != 'true'  and ('$(AutoGenerateBindingRedirects)' =='' and '$(GenerateBindingRedirectsOutputType)' == 'true')">

    <SkipEnsureBindingRedirects>true</SkipEnsureBindingRedirects>

    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>

  </PropertyGroup>

  <UsingTask TaskName="EnsureBindingRedirects" AssemblyFile="$(MSBuildThisFileDirectory)Microsoft.Bcl.Build.Tasks.dll" />

  <!-- 

    ===================================================================================================================

                                                                                  BclBuildDetermineReferencesToRedirect

    Determine which references are opted in for binding redirects

    ===================================================================================================================

    -->

  <Target Name="BclBuildDetermineReferencesToRedirect" BeforeTargets="BclBuildEnsureBindingRedirects" Condition="'$(SkipEnsureBindingRedirects)' != 'true'">

    <!-- Convention is a file next to the reference with name "ensureRedirect.xml" -->

    <ItemGroup>

      <_EnsureBindingRedirectReference Include="@(Reference)"

                                       Condition="'%(Reference.HintPath)' != '' and Exists('$([System.IO.Path]::GetDirectoryName("%(Reference.HintPath)"))\\ensureRedirect.xml')" />

    </ItemGroup>

  </Target>

  <!-- 

    ===================================================================================================================

                                                                                         BclBuildEnsureBindingRedirects

    Generate a new app.config with merged binding redirects if we have binding redirects to ensure and it's out of date

    ===================================================================================================================

    -->

  <Target Name="BclBuildEnsureBindingRedirects"

          DependsOnTargets="BclBuildDetermineReferencesToRedirect"

          BeforeTargets="ResolveAssemblyReferences"

          Condition="'@(_EnsureBindingRedirectReference)' != '' and '$(SkipEnsureBindingRedirects)' != 'true'"

          Inputs="$(MSBuildAllProjects);$(AppConfig);@(_EnsureBindingRedirectReference->'%(HintPath)')"

          Outputs="$(__IntermediateAppConfig)">

    <EnsureBindingRedirects References="@(_EnsureBindingRedirectReference->'%(HintPath)')"

                            SourceAppConfigPath="$(AppConfig)"

                            DestinationAppConfigPath="$(__IntermediateAppConfig)">

      <Output TaskParameter="DestinationAppConfigPath" ItemName="FileWrites"/>

    </EnsureBindingRedirects>

  </Target>

  <!-- 

    ===================================================================================================================

                                                                                  BclBuildUpdateAppConfigWithTargetPath

    Update project properties to point to the generated app.config

    ===================================================================================================================

    -->

  <Target Name="BclBuildUpdateAppConfigWithTargetPath"

          DependsOnTargets="BclBuildDetermineReferencesToRedirect;BclBuildEnsureBindingRedirects"

          BeforeTargets="ResolveAssemblyReferences"

          Condition="'@(_EnsureBindingRedirectReference)' != '' and '$(SkipEnsureBindingRedirects)' != 'true'">

    <PropertyGroup>

      <AppConfig>$(__IntermediateAppConfig)</AppConfig>

    </PropertyGroup>

    <ItemGroup>

      <AppConfigWithTargetPath Remove="@(AppConfigWithTargetPath)" />

      <AppConfigWithTargetPath Include="$(AppConfig)">

        <TargetPath>$(TargetFileName).config</TargetPath>

      </AppConfigWithTargetPath>

    </ItemGroup>

  </Target>

  <!--

    *******************************************************************************************************************

    *******************************************************************************************************************

                                                                                      ValidatePackageReferences Section

    This group of targets enables validation of nuget package references when building inside VisualStudio.

    *******************************************************************************************************************

    *******************************************************************************************************************

    -->

  <!-- 

    ===================================================================================================================

                                                                                  BclBuildAddProjectReferenceProperties

    Adds properties to be set when resolving project references.  The properties ensure that the references get built

    in the context of the referencer (by changing the set of properties used to build the project) and pass down the

    context needed to validate the referencing project.

    ===================================================================================================================

    -->

  <Target Name="BclBuildAddProjectReferenceProperties"

          BeforeTargets="AssignProjectConfiguration"

          Condition="'$(BuildingInsideVisualStudio)' == 'true'">

    <PropertyGroup>

      <_BclBuildProjectReferenceProperties>BclBuildReferencingProject=$(MSBuildProjectFullPath);BclBuildReferencingProjectConfig=$(MSBuildProjectDirectory)\packages.config</_BclBuildProjectReferenceProperties>

      <_BclBuildProjectReferenceProperties Condition="'$(SkipValidatePackageReferences)' != ''">$(_BclBuildProjectReferenceProperties);SkipValidatePackageReferences=$(SkipValidatePackageReferences)</_BclBuildProjectReferenceProperties>

    </PropertyGroup>

    <ItemGroup>

      <ProjectReference>      

         <AdditionalProperties>$(_BclBuildProjectReferenceProperties);%(ProjectReference.AdditionalProperties)</AdditionalProperties>

     </ProjectReference>

    </ItemGroup>

  </Target>

  <!-- 

    ===================================================================================================================

                                                                                            BclBuildSetRunningFullBuild

    Determines when a full build is running as opposed to a single target.

    ===================================================================================================================

    -->

  <Target Name="BclBuildSetRunningFullBuild"

          BeforeTargets="BuildOnlySettings">

    <PropertyGroup>

      <BclBuildRunningFullBuild>true</BclBuildRunningFullBuild>

    </PropertyGroup>

  </Target>

  <!-- 

    ===================================================================================================================

                                                                                    GetTargetPath/BclBuildGetTargetPath

    MSBuild will only build a target once for a given set of properties.

    We need that single build of GetTargetPath to run during project reference resolution, so that we can detect a 

    referencing project that doesn't have Bcl.Build.

    To accomplish this we replace GetTargetPath with BclBuildGetTargetPath when running a full build.

    ===================================================================================================================

    -->

  <Target

      Name="GetTargetPath"

      Condition="'$(BclBuildRunningFullBuild)' != 'true'"

      DependsOnTargets="$(GetTargetPathDependsOn)"

      Returns="$(TargetPath)"/>

  <Target

      Name="BclBuildGetTargetPath"

      Condition="'$(BclBuildRunningFullBuild)' == 'true'"

      AfterTargets="GetTargetPath"

      Returns="$(TargetPath)">

    <PropertyGroup>

      <!-- Reset BclBuildRunningFullBuild, it will be set again when doing a full build. -->

      <BclBuildRunningFullBuild>false</BclBuildRunningFullBuild>

    </PropertyGroup>

  </Target>

  <!-- 

    ===================================================================================================================

                                                                                 BclBuildValidateNugetPackageReferences

    This target validates that any Nuget packages installed in the current project are also installed in projects 

    referencing the current project.

    This is necessary because Nuget packages contain more than just simple references.  Installing the package ensures

        1. The right set of references for the target framework are added

        2. Config file transforms are applied

        3. Project installation scripts are run

    For all packages listed as installed for the current project in packages config, if the package ID matches one

    specified in @(ValidatePackages), ensure that the same package is installed in the referencing project. 

    This target can be disabled for a project reference by setting SkipValidatePackageReferences=true for the reference:

    <ProjectReference Include="..\pcl\pcl.csproj">

      <Project>{664a9e98-fac7-4567-a046-0dde95fddb48}</Project>

      <Name>pcl</Name>

      <Properties>SkipValidatePackageReferences=true</Properties>

    </ProjectReference>

    This target can be disabled for all references to a project by adding the following:

    <PropertyGroup>

      <SkipValidatePackageReferences>true</SkipValidatePackageReferences>

    </PropertyGroup>

    ===================================================================================================================

    -->

  <UsingTask TaskName="ValidatePackageReferences" AssemblyFile="$(MSBuildThisFileDirectory)Microsoft.Bcl.Build.Tasks.dll" />

  <Target Name="BclBuildValidateNugetPackageReferences"

          Condition="'$(BclBuildRunningFullBuild)' != 'true' AND '$(SkipValidatePackageReferences)' != 'true' AND '$(BuildingInsideVisualStudio)' == 'true'"

          BeforeTargets="GetTargetPath">

    <ItemGroup>

      <ValidatePackages Include="Microsoft.Bcl"/>

      <ValidatePackages Include="Microsoft.Bcl.Async"/>

      <ValidatePackages Include="Microsoft.Bcl.Compression"/>

      <ValidatePackages Include="Microsoft.Net.Http"/>

    </ItemGroup>

    <ValidatePackageReferences Packages="@(ValidatePackages)"

                               ReferencingProject="$(BclBuildReferencingProject)"

                               ReferencingProjectPackagesConfig="$(BclBuildReferencingProjectConfig)"

                               ReferencedProject="$(MSBuildProjectFullPath)"

                               ReferencedProjectPackagesConfig="$(MSBuildProjectDirectory)\packages.config"

                               TreatWarningsAsErrors="$(TreatWarningsAsErrors)" />

  </Target>

</Project>