Microsoft.NET.Sdk.Common.targets

<!--
***********************************************************************************************
Microsoft.NET.Sdk.Common.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) .NET Foundation. All rights reserved.
***********************************************************************************************
-->
<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

  <!-- This file is imported by both cross-targeting and inner builds. Set properties that need to be available to both here. -->

  <PropertyGroup>
    <MicrosoftNETBuildTasksDirectoryRoot>$(MSBuildThisFileDirectory)..\tools\</MicrosoftNETBuildTasksDirectoryRoot>
    <MicrosoftNETBuildTasksTFM Condition=" '$(MSBuildRuntimeType)' == 'Core'">netcoreapp2.1</MicrosoftNETBuildTasksTFM>
    <MicrosoftNETBuildTasksTFM Condition=" '$(MicrosoftNETBuildTasksTFM)' == ''">net472</MicrosoftNETBuildTasksTFM>
    <MicrosoftNETBuildTasksDirectory>$(MicrosoftNETBuildTasksDirectoryRoot)$(MicrosoftNETBuildTasksTFM)/</MicrosoftNETBuildTasksDirectory>
    <MicrosoftNETBuildTasksAssembly>$(MicrosoftNETBuildTasksDirectory)Microsoft.NET.Build.Tasks.dll</MicrosoftNETBuildTasksAssembly>

    <!--
          Hardcoded list of known implicit packges that are added to project from default SDK targets implicitly.
          Should be re-visited when multiple TFM support is added to Dependencies logic.
    -->
    <DefaultImplicitPackages>Microsoft.NETCore.App;NETStandard.Library</DefaultImplicitPackages>
  </PropertyGroup>
  
  <!--
     Some versions of Microsoft.NET.Test.Sdk.targets change the OutputType after we've set _IsExecutable and
     HasRuntimeOutput default in Microsoft.NET.Sdk.BeforeCommon.targets. Refresh these value here for backwards
     compatibilty with that.
   -->
  <PropertyGroup>
    <_IsExecutable Condition="'$(OutputType)' == 'Exe' or '$(OutputType)'=='WinExe'">true</_IsExecutable>
    <HasRuntimeOutput Condition="'$(_UsingDefaultForHasRuntimeOutput)' == 'true'">$(_IsExecutable)</HasRuntimeOutput>
  </PropertyGroup>

  <PropertyGroup Condition="'$(DotnetCliToolTargetFramework)' == ''">
    <!-- Maximum supported target framework for DotnetCliProjectTools is .NET Core 2.2 -->
    <DotnetCliToolTargetFramework>netcoreapp2.2</DotnetCliToolTargetFramework>
  </PropertyGroup>

  <PropertyGroup>
    <IncludeBuildOutput Condition=" '$(PackAsTool)' == 'true' ">false</IncludeBuildOutput>
    <PackageType Condition=" '$(PackAsTool)' == 'true' ">DotnetTool</PackageType>
    <RuntimeIdentifiers Condition=" '$(PackAsTool)' == 'true' ">$(RuntimeIdentifiers);$(PackAsToolShimRuntimeIdentifiers)</RuntimeIdentifiers>
  </PropertyGroup>

  <UsingTask TaskName="GetNearestTargetFramework" AssemblyFile="$(MicrosoftNETBuildTasksAssembly)" />
  <UsingTask TaskName="NETSdkError" AssemblyFile="$(MicrosoftNETBuildTasksAssembly)" />
  <UsingTask TaskName="NETSdkWarning" AssemblyFile="$(MicrosoftNETBuildTasksAssembly)" />
  <UsingTask TaskName="NETSdkInformation" AssemblyFile="$(MicrosoftNETBuildTasksAssembly)" />
  <UsingTask TaskName="ShowPreviewMessage" AssemblyFile="$(MicrosoftNETBuildTasksAssembly)" />

  <!--
  ============================================================
                              GetTargetFrameworkProperties

    Invoked by common targets to return the set of properties
    (in the form  "key1=value1;...keyN=valueN") needed to build
    against the target framework that best matches the referring
    project's target framework.

    The referring project's $(TargetFrameworkMoniker) is passed
    in as $(ReferringTargetFramework).

    This is in the common targets so that it will apply to both
    cross-targeted and single-targeted projects.  It is run
    for single-targeted projects so that an error will be
    generated if the referenced project is not compatible
    with the referencing project's target framework.
  ============================================================
   -->
  <Target Name="GetTargetFrameworkProperties" Returns="TargetFramework=$(NearestTargetFramework);ProjectHasSingleTargetFramework=$(_HasSingleTargetFramework);ProjectIsRidAgnostic=$(_IsRidAgnostic)">

    <PropertyGroup>
      <!-- indicate to caller that project is RID agnostic so that a global property RuntimeIdentifier value can be removed -->
      <_IsRidAgnostic>false</_IsRidAgnostic>
      <_IsRidAgnostic Condition=" '$(RuntimeIdentifier)' == '' and '$(RuntimeIdentifiers)' == '' ">true</_IsRidAgnostic>

      <!-- If a ReferringTargetFramework was not specified, and we only have one TargetFramework, then don't try to check compatibility -->
      <_SkipNearestTargetFrameworkResolution Condition="'$(TargetFramework)' != '' and '$(ReferringTargetFramework)' == ''">true</_SkipNearestTargetFrameworkResolution>
      <NearestTargetFramework Condition="'$(_SkipNearestTargetFrameworkResolution)' == 'true'">$(TargetFramework)</NearestTargetFramework>

      <!-- A project can only have more than one output if the current global properties are such that the current build is a cross-targeting one. -->
      <_HasSingleTargetFramework Condition="'$(IsCrossTargetingBuild)' != 'true'">true</_HasSingleTargetFramework>
      <_HasSingleTargetFramework Condition="'$(_HasSingleTargetFramework)' == ''">false</_HasSingleTargetFramework>

      <_PossibleTargetFrameworks Condition="'$(TargetFramework)' != ''">$(TargetFramework)</_PossibleTargetFrameworks>
      <_PossibleTargetFrameworks Condition="'$(TargetFramework)' == ''">$(TargetFrameworks)</_PossibleTargetFrameworks>
    </PropertyGroup>

    <GetNearestTargetFramework ReferringTargetFramework="$(ReferringTargetFramework)"
                               PossibleTargetFrameworks="$(_PossibleTargetFrameworks)"
                               ProjectFilePath="$(MSBuildProjectFullPath)"
                               Condition="'$(_SkipNearestTargetFrameworkResolution)' != 'true'">
      <Output PropertyName="NearestTargetFramework" TaskParameter="NearestTargetFramework" />
    </GetNearestTargetFramework>
  </Target>

</Project>