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Microsoft.NET.Build.Extensions.NETFramework.targets
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Microsoft.NET.Build.Extensions.NETFramework.targets
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<!--
***********************************************************************************************
Microsoft.NET.Build.Extensions.NETFramework.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 xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<!-- Add NETStandard references if targetframeworkversion supports netstandard2.0 (net461 or later) -->
<ImplicitlyExpandNETStandardFacades Condition="'$(ImplicitlyExpandNETStandardFacades)' == '' AND '$(_TargetFrameworkVersionWithoutV)' >= '4.6.1'">true</ImplicitlyExpandNETStandardFacades>
</PropertyGroup>
<UsingTask TaskName="GetDependsOnNETStandard" AssemblyFile="$(MicrosoftNETBuildExtensionsTasksAssembly)" />
<UsingTask TaskName="NETBuildExtensionsError" AssemblyFile="$(MicrosoftNETBuildExtensionsTasksAssembly)" />
<UsingTask TaskName="NETBuildExtensionsWarning" AssemblyFile="$(MicrosoftNETBuildExtensionsTasksAssembly)" />
<UsingTask TaskName="AddFacadesToReferences" AssemblyFile="$(MicrosoftNETBuildExtensionsTasksAssembly)" />
<Target Name="ImplicitlyExpandNETStandardFacades"
Condition="'$(ImplicitlyExpandNETStandardFacades)' == 'true'"
BeforeTargets="_HandlePackageFileConflicts;ResolveAssemblyReferences">
<ItemGroup>
<_CandidateNETStandardReferences Include="@(Reference);@(_ResolvedProjectReferencePaths)" />
<_InboxNETStandardFolders Include="$(TargetFrameworkDirectory)" />
</ItemGroup>
<!-- determine if NETStandard.dll is supported inbox for this TargetFramework -->
<PropertyGroup Condition="'$(NETStandardInbox)' == ''">
<NETStandardInbox Condition="Exists('%(_InboxNETStandardFolders.Identity)\netstandard.dll')">true</NETStandardInbox>
</PropertyGroup>
<!-- determine if any references depend on NETStandard -->
<!-- Check metadata of _ResolvedProjectReferencePaths items. This handles the case where we are doing a design-time build and a referenced project
hasn't been built yet, so there is no corresponding assembly on disk for the GetDependsOnNETStandard task to examine.
More context: https://github.com/dotnet/sdk/issues/1403
-->
<PropertyGroup Condition="'$(DependsOnNETStandard)' == '' AND '$(NETStandardInbox)' != 'true'">
<DependsOnNETStandard Condition="('%(_ResolvedProjectReferencePaths.TargetFrameworkIdentifier)' == '.NETStandard') And ('%(_ResolvedProjectReferencePaths.TargetFrameworkVersion)' >= '1.5')">true</DependsOnNETStandard>
</PropertyGroup>
<PropertyGroup Condition="'@(_CandidateNETStandardReferences)' != ''">
<!-- Use an intermediate property to simplify condition. Run GetDependsOnNETStandard if either: -->
<!-- 1. The .NET Standard 2.0 support need to be injected -->
<_RunGetDependsOnNETStandard Condition="'$(DependsOnNETStandard)' == '' AND '$(NETStandardInbox)' != 'true'">true</_RunGetDependsOnNETStandard>
<!-- 2. The target framework is .NET 4.7.1, which needs to special case some shims -->
<_RunGetDependsOnNETStandard Condition="'$(DependsOnNETStandard)' == '' AND '$(_TargetFrameworkVersionWithoutV)' == '4.7.1'">true</_RunGetDependsOnNETStandard>
</PropertyGroup>
<GetDependsOnNETStandard Condition="'$(_RunGetDependsOnNETStandard)' == 'true'"
References="@(_CandidateNETStandardReferences)">
<Output TaskParameter="DependsOnNETStandard" PropertyName="DependsOnNETStandard" />
</GetDependsOnNETStandard>
<!-- prevent using an older SDK version with NETStandard2.0 references -->
<PropertyGroup>
<_UsingOldSDK Condition="'$(UsingMicrosoftNETSdk)' != 'true' AND ('$(TargetFramework)' != '' OR '$(TargetFrameworks)' != '')">true</_UsingOldSDK>
</PropertyGroup>
<NETBuildExtensionsError Condition="'$(DependsOnNETStandard)' == 'true' AND '$(NETStandardInbox)' != 'true' AND '$(_UsingOldSDK)' == 'true'"
ResourceName="UnsupportedSDKVersionForNetStandard20"/>
<!--
.NET 4.7.1 has support for .NET Standard 2.0 built-in, so most of the facades aren't necessary. However, the assembly versions of a few set of assemblies
do not yet match the ones shipped in the support package for .NET Standard 2.0 on .NET 4.7 and below. This means that .NET 4.7 or lower libraries might have
references to higher versions of these assemblies than are available in-box in .NET 4.7, leading to assembly loading errors. So if there is a dependency on
netstandard.dll, we include DLLs for .NET 4.7.1 from the support package to avoid these errors.
-->
<ItemGroup Condition="'$(_TargetFrameworkVersionWithoutV)' == '4.7.1'">
<_NETStandardLibraryNETFrameworkLib Include="$(MSBuildThisFileDirectory)\net471\lib\*.dll" Condition="'$(DependsOnNETStandard)' == 'true'"/>
</ItemGroup>
<!-- if any reference depends on netstandard and it is not inbox, add references and implementation assemblies for netstandard2.0 -->
<ItemGroup Condition="'$(DependsOnNETStandard)' == 'true' AND '$(NETStandardInbox)' != 'true' AND '$(_TargetFrameworkVersionWithoutV)' < '4.7.1'">
<_NETStandardLibraryNETFrameworkLib Condition="'$(_TargetFrameworkVersionWithoutV)' >= '4.7'"
Include="$(MSBuildThisFileDirectory)net47\lib\*.dll" />
<_NETStandardLibraryNETFrameworkLib Condition="'$(_TargetFrameworkVersionWithoutV)' >= '4.6.2'"
Include="$(MSBuildThisFileDirectory)net462\lib\*.dll"
Exclude="@(_NETStandardLibraryNETFrameworkLib->'$(MSBuildThisFileDirectory)net462\lib\%(FileName).dll')" />
<_NETStandardLibraryNETFrameworkLib Condition="'$(_TargetFrameworkVersionWithoutV)' >= '4.6.1'"
Include="$(MSBuildThisFileDirectory)net461\lib\*.dll"
Exclude="@(_NETStandardLibraryNETFrameworkLib->'$(MSBuildThisFileDirectory)net461\lib\%(FileName).dll')" />
</ItemGroup>
<ItemGroup Condition="'@(_NETStandardLibraryNETFrameworkLib)' != ''">
<!-- Put each facade assembly in two separate items: Reference with Private set to false, which means it won't be
copied locally, and ReferenceCopyLocalPaths, which will be copied locally. The reason for this split is to
workaround https://github.com/dotnet/core-setup/issues/2981 by ensuring that the facades are written
to the deps.json with a type of "referenceassembly" instead of "reference".
The exception is netfx.force.conflicts.dll, which shouldn't be copied local. So it isn't included in
ReferenceCopyLocalPaths.
When we add the Reference items, we use the simple name as the ItemSpec, and refer to the full path
to the DLL via the HintPath metadata. This is so that if we're replacing a simple Reference,
the OriginalItemSpec of the resolved reference will match to the Reference that was replaced,
and VS won't show a warning icon on the reference. See https://github.com/dotnet/sdk/issues/1499
-->
<ReferenceCopyLocalPaths Include="@(_NETStandardLibraryNETFrameworkLib)" Condition="'%(FileName)' != 'netfx.force.conflicts'"/>
<_UpdatedReference Remove="@(_UpdatedReference)" />
</ItemGroup>
<!-- Facade assemblies should override simple name references. However, we want to preserve custom metadata
on those simple name references (for example for aliases). That's what this task does. -->
<AddFacadesToReferences References="@(Reference)"
Facades="@(_NETStandardLibraryNETFrameworkLib)"
Condition="'@(_NETStandardLibraryNETFrameworkLib)' != ''">
<Output TaskParameter="UpdatedReferences" ItemName="_UpdatedReference" />
</AddFacadesToReferences>
<ItemGroup Condition="'@(_NETStandardLibraryNETFrameworkLib)' != ''">
<Reference Remove="@(Reference)" />
<Reference Include="@(_UpdatedReference)" />
<_UpdatedReference Remove="@(_UpdatedReference)" />
</ItemGroup>
</Target>
<!-- There was issue in .NET 4.7.1 where System.IO.Compression.ZipFile was not correctly in the unification table.
A workaround to issues that caused was to add a binding redirect for the assembly from version 4.0.3.0 down to
4.0.0.0. However, with the fix to dotnet/sdk#2221, ResolveAssemblyReference now sees a conflicting version for
the assembly, and suggests a redirect to 4.0.3.0. With automatic binding redirection, this overrides the redirect
to 4.0.0.0, which causes a runtime failure.
So here we disable any suggested binding redirect for System.IO.Compression.ZipFile. Assemblies in the unification
table generally should not need binding redirects, so it should be OK to do this for 4.7.2 and forward, and on 4.7.1
the assembly isn't in the unification table so this allows the original workaround redirect to be preserved. -->
<Target Name="_RemoveZipFileSuggestedRedirect"
BeforeTargets="GenerateBindingRedirects"
DependsOnTargets="ResolveAssemblyReferences"
Condition="'$(_TargetFrameworkVersionWithoutV)' >= '4.7.1' And '$(AllowZipFileRedirect)' != 'true'">
<ItemGroup>
<SuggestedBindingRedirects Remove="System.IO.Compression.ZipFile, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</ItemGroup>
</Target>
</Project>