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<!--
***********************************************************************************************
Microsoft.NET.RuntimeIdentifierInference.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">

  <!--
    .NETFramework cannot load native package dependencies dynamically
    based on the current architecture.  We have must have a RID to
    resolve and copy native dependencies to the output directory.

     When building a .NETFramework exe on Windows and not given a RID,
     we'll pick either win7-x64 or win7-x86 (based on PlatformTarget)
     if we're not given an explicit RID. However, if after resolving
     NuGet assets we find no copy-local native dependencies, we will
     emit the binary as AnyCPU.

     Note that we must set the RID here early (to be seen during NuGet
     restore) in order for the project.assets.json to include the
     native dependencies that will let us make the final call on
     AnyCPU or platform-specific.

     This allows these common cases to work without requiring mention
     of RuntimeIdentifier in the user project PlatformTarget:

      1. Building an AnyCPU .NETFramework application on any host OS
         with no native NuGet dependencies. (*)

      2. Building an x86 or x64 NETFramework application on and for
         Windows with native NuGet dependencies that do not require
         greater than win7.

     However, any other combination of host operating system, CPU
     architecture, and minimum Windows version will require some
     manual intervention in the project file to set up the right
     RID. (**)

     (*) Building NET4x from non-Windows is still not fully supported:
         https://github.com/dotnet/sdk/issues/335) The point above is
         that this code would not have to change to make the first
         scenario work on non-Windows hosts.

     (**) https://github.com/dotnet/sdk/issues/840 tracks improving
          the default RID selection here to make more non-AnyCPU scenarios
          work without user intervention. The current static evaluation
          requirement limits us.
   -->
  <PropertyGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework' and 
                            '$(HasRuntimeOutput)' == 'true' and 
                            '$(OS)' == 'Windows_NT' and
                            '$(RuntimeIdentifier)' == ''">
    <_UsingDefaultRuntimeIdentifier>true</_UsingDefaultRuntimeIdentifier>
    <RuntimeIdentifier Condition="'$(PlatformTarget)' == 'x64'">win7-x64</RuntimeIdentifier>
    <RuntimeIdentifier Condition="'$(PlatformTarget)' == 'x86' or '$(PlatformTarget)' == ''">win7-x86</RuntimeIdentifier>
  </PropertyGroup>

  <PropertyGroup Condition="'$(PlatformTarget)' == ''">
    <_UsingDefaultPlatformTarget>true</_UsingDefaultPlatformTarget>
  </PropertyGroup>

  <!-- Determine PlatformTarget (if not already set) from runtime identifier. -->
  <Choose>
    <When Condition="'$(PlatformTarget)' != '' or '$(RuntimeIdentifier)' == ''" />

    <When Condition="$(RuntimeIdentifier.EndsWith('-x86')) or $(RuntimeIdentifier.Contains('-x86-'))">
      <PropertyGroup>
        <PlatformTarget>x86</PlatformTarget>
      </PropertyGroup>
    </When>

    <When Condition="$(RuntimeIdentifier.EndsWith('-x64')) or $(RuntimeIdentifier.Contains('-x64-'))">
      <PropertyGroup>
        <PlatformTarget>x64</PlatformTarget>
      </PropertyGroup>
    </When>

    <When Condition="$(RuntimeIdentifier.EndsWith('-arm')) or $(RuntimeIdentifier.Contains('-arm-'))">
      <PropertyGroup>
        <PlatformTarget>arm</PlatformTarget>
      </PropertyGroup>
    </When>

    <!-- NOTE: PlatformTarget=arm64 is not currently supported and therefore no inference of that here. -->
    <Otherwise>
      <PropertyGroup>
        <PlatformTarget>AnyCPU</PlatformTarget>
      </PropertyGroup>
    </Otherwise>
  </Choose>

  <!--
    SelfContained was not an option in .NET Core SDK 1.0. 
    Default SelfContained based on the RuntimeIdentifier, so projects don't have to explicitly set SelfContained.
    This avoids a breaking change from 1.0 behavior.
    -->
  <PropertyGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETCoreApp' and '$(HasRuntimeOutput)' == 'true'">
    <SelfContained Condition="'$(SelfContained)' == '' and '$(RuntimeIdentifier)' != ''">true</SelfContained>
    <SelfContained Condition="'$(SelfContained)' == ''">false</SelfContained>
    <UseAppHost Condition="'$(UseAppHost)' == '' and
                           ('$(SelfContained)' == 'true' or
                            ('$(RuntimeIdentifier)' != '' and '$(_TargetFrameworkVersionWithoutV)' >= '2.1') or
                            '$(_TargetFrameworkVersionWithoutV)' >= '3.0')">true</UseAppHost>
    <UseAppHost Condition="'$(UseAppHost)' == ''">false</UseAppHost>
  </PropertyGroup>

  <!-- Only use the default apphost if building without a RID and without a deps file path (used by GenerateDeps.proj for CLI tools). -->
  <PropertyGroup Condition="'$(DefaultAppHostRuntimeIdentifier)' == '' and
                            '$(RuntimeIdentifier)' == '' and
                            (('$(UseAppHost)' == 'true' and '$(ProjectDepsFilePath)' == '') or
                            ('$(EnableComHosting)' == 'true' and '$(_IsExecutable)' != 'true') or
                            '$(UseIJWHost)' == 'true')">
    <DefaultAppHostRuntimeIdentifier>$(NETCoreSdkRuntimeIdentifier)</DefaultAppHostRuntimeIdentifier>
    <DefaultAppHostRuntimeIdentifier Condition="$(DefaultAppHostRuntimeIdentifier.StartsWith('win')) and '$(PlatformTarget)' == 'x64'">win-x64</DefaultAppHostRuntimeIdentifier>
    <DefaultAppHostRuntimeIdentifier Condition="$(DefaultAppHostRuntimeIdentifier.StartsWith('win')) and '$(PlatformTarget)' == 'x86'">win-x86</DefaultAppHostRuntimeIdentifier>
    <DefaultAppHostRuntimeIdentifier Condition="$(DefaultAppHostRuntimeIdentifier.StartsWith('win')) and '$(PlatformTarget)' == 'ARM'">win-arm</DefaultAppHostRuntimeIdentifier>
    <DefaultAppHostRuntimeIdentifier Condition="$(DefaultAppHostRuntimeIdentifier.StartsWith('win')) and '$(PlatformTarget)' == 'ARM64'">win-arm64</DefaultAppHostRuntimeIdentifier>
  </PropertyGroup>

  <Target Name="_CheckForUnsupportedAppHostUsage"
          BeforeTargets="_CheckForInvalidConfigurationAndPlatform"
          Condition="'$(TargetFrameworkIdentifier)' == '.NETCoreApp' and '$(HasRuntimeOutput)' == 'true'">

    <NETSdkError Condition="'$(SelfContained)' == 'true' and '$(RuntimeIdentifier)' == ''"
                 ResourceName="CannotHaveSelfContainedWithoutRuntimeIdentifier" />

    <NETSdkError Condition="'$(SelfContained)' == 'true' and '$(UseAppHost)' != 'true'"
                 ResourceName="CannotUseSelfContainedWithoutAppHost" />

    <NETSdkError Condition="'$(PublishSingleFile)' == 'true' and '$(RuntimeIdentifier)' == ''"
                 ResourceName="CannotHaveSingleFileWithoutRuntimeIdentifier" />

    <NETSdkError Condition="'$(PublishSingleFile)' == 'true' and '$(UseAppHost)' != 'true'"
                 ResourceName="CannotHaveSingleFileWithoutAppHost" />

    <NETSdkError Condition="'$(SelfContained)' != 'true' and '$(UseAppHost)' == 'true' and '$(_TargetFrameworkVersionWithoutV)' &lt; '2.1'"
                 ResourceName="FrameworkDependentAppHostRequiresVersion21" />

  </Target>

  <Target Name="_CheckForMismatchingPlatform"
          BeforeTargets="_CheckForInvalidConfigurationAndPlatform"
          Condition="'$(RuntimeIdentifier)' != '' and '$(PlatformTarget)' != ''">

    <NETSdkError Condition="'$(PlatformTarget)' != 'AnyCPU' and !$(RuntimeIdentifier.ToUpperInvariant().Contains($(PlatformTarget.ToUpperInvariant())))"
                 ResourceName="CannotHaveRuntimeIdentifierPlatformMismatchPlatformTarget"
                 FormatArguments="$(RuntimeIdentifier);$(PlatformTarget)" />

  </Target>

  <Target Name="_CheckForLanguageAndFeatureCombinationSupport"
          BeforeTargets="_CheckForInvalidConfigurationAndPlatform;ProcessFrameworkReferences">

    <NETSdkError Condition="'$(Language)' == 'C++' and $(OutputType) != 'library' and '$(TargetFrameworkIdentifier)' == '.NETCoreApp'"
                 ResourceName="NoSupportCppNonDynamicLibraryDotnetCore" />

    <NETSdkError Condition="'$(Language)' == 'C++' and $(EnableComHosting) == 'true'"
                 ResourceName="NoSupportCppEnableComHosting" />

  </Target>

  <Target Name="_CheckForNETCoreSdkIsPreview"
          BeforeTargets="_CheckForInvalidConfigurationAndPlatform"
          Condition=" '$(_NETCoreSdkIsPreview)' == 'true' AND '$(SuppressNETCoreSdkPreviewMessage)' != 'true' ">
    <ShowPreviewMessage />
  </Target>

  <!-- Projects which don't use Microsoft.NET.Sdk will typically define the OutputPath directly (usually in a
       Configuration-specific PropertyGroup), so in that case we won't append to it by default. -->
  <PropertyGroup Condition="'$(UsingNETSdkDefaults)' == 'true'">
    <!-- Projects can opt out of having the RID appended to the output path by setting this to false. -->
    <AppendRuntimeIdentifierToOutputPath Condition="'$(AppendRuntimeIdentifierToOutputPath)' == ''">true</AppendRuntimeIdentifierToOutputPath>
  </PropertyGroup>

  <!--
    Append $(RuntimeIdentifier) directory to output and intermediate paths to prevent bin clashes between
    targets. 

    But do not append the implicit default runtime identifier for .NET Framework apps as that would 
    append a RID the user never mentioned in the path and do so even in the AnyCPU case.
   -->
  <PropertyGroup Condition="'$(AppendRuntimeIdentifierToOutputPath)' == 'true' and '$(RuntimeIdentifier)' != '' and '$(_UsingDefaultRuntimeIdentifier)' != 'true'">
    <IntermediateOutputPath>$(IntermediateOutputPath)$(RuntimeIdentifier)\</IntermediateOutputPath>
    <OutputPath>$(OutputPath)$(RuntimeIdentifier)\</OutputPath>
  </PropertyGroup>

  <UsingTask TaskName="Microsoft.NET.Build.Tasks.GetDefaultPlatformTargetForNetFramework"
           AssemblyFile="$(MicrosoftNETBuildTasksAssembly)" />


  <!-- 
    Switch our default .NETFramework CPU architecture choice back to AnyCPU before 
    compiling the exe if no copy-local native dependencies were resolved from NuGet 
  -->
  <Target Name="AdjustDefaultPlatformTargetForNetFrameworkExeWithNoNativeCopyLocalItems"
          AfterTargets="ResolvePackageAssets"
          BeforeTargets="CoreCompile"
          Condition="'$(_UsingDefaultPlatformTarget)' == 'true' and
                     '$(_UsingDefaultRuntimeIdentifier)' == 'true'">

    <GetDefaultPlatformTargetForNetFramework PackageDependencies="@(PackageDependencies)"
                                             NativeCopyLocalItems="@(NativeCopyLocalItems)">

      <Output TaskParameter="DefaultPlatformTarget" PropertyName="PlatformTarget" />
      
    </GetDefaultPlatformTargetForNetFramework>
  </Target>

</Project>