TensorFlow.NET/src/SciSharp.TensorFlow.Redist/SciSharp.TensorFlow.Redist.nupkgproj

<Project Sdk="Microsoft.NET.Sdk">
  
  <PropertyGroup>
    <ProjDir>$(MSBuildThisFileDirectory)</ProjDir>
    <BinDir>$(ProjDir)bin\</BinDir>
    <ObjDir>$(ProjDir)obj\</ObjDir>

    <TargetArchitecture Condition="'$(TargetArchitecture)' == ''">x64</TargetArchitecture>
    <TargetFramework>netstandard2.0</TargetFramework>
    <TensorFlowVersion>1.14.0</TensorFlowVersion>
    <TensorFlowMajorVersion>1</TensorFlowMajorVersion>

    <PackageAssetsPath>$(BinDir)packages\</PackageAssetsPath>
    <PackageId>$(MSBuildProjectName)</PackageId>
    <PackageVersion>$(TensorFlowVersion)</PackageVersion>

    <NoBuild>true</NoBuild>
    <IncludeBuildOutput>false</IncludeBuildOutput>

    <NuspecFile>Redist.nuspec</NuspecFile>
    <NuspecProperties>packageId=$(PackageId);version=$(PackageVersion)</NuspecProperties>
    <NuspecBasePath>$(ProjDir)</NuspecBasePath>

    <GenerateNuspecDependsOn>CopyFilesFromArchive</GenerateNuspecDependsOn>

    <PackageRid Condition="'$(OS)' == 'Windows_NT'">win</PackageRid>
    <PackageRid Condition="'$(OS)' != 'Windows_NT'">linux</PackageRid>
    <PackageRid Condition="$([MSBuild]::IsOSPlatform('osx'))">osx</PackageRid>
    <PackageRid>$(PackageRid)-$(TargetArchitecture)</PackageRid>

  </PropertyGroup>

  <PropertyGroup>
    <IncludeMLNetNotices>false</IncludeMLNetNotices>
  </PropertyGroup>
  
  <ItemGroup>
    <TensorFlowConfig Include="windows"
                      FileExtension=".zip"
                      FilesFromArchive="lib\tensorflow.dll;
                                        include\tensorflow\c\LICENSE"
                      Runtime="win-x64"/>

    <TensorFlowConfig Condition="'$(OS)' != 'Windows_NT'"
                      Include="linux"
                      FileExtension=".tar.gz"
                      FilesFromArchive="lib\libtensorflow.so;
                                        lib\libtensorflow_framework.so.$(TensorFlowMajorVersion);
                                        include\tensorflow\c\LICENSE"
                      Runtime="linux-x64" />

    <TensorFlowConfig Condition="'$(OS)' != 'Windows_NT'"
                      Include="darwin" FileExtension=".tar.gz"
                      FilesFromArchive="lib\libtensorflow.dylib;
                                        lib\libtensorflow_framework.$(TensorFlowMajorVersion).dylib;
                                        include\tensorflow\c\LICENSE"
                      Runtime="osx-x64" />

    <AdditionalDownloadFile Include="https://raw.githubusercontent.com/tensorflow/tensorflow/master/LICENSE"
                            DownloadFile="$(BinDir)LICENSE" />
  </ItemGroup>

  <Target Name="PrepareArchives">
    <ItemGroup>
      <!-- although we could extract all archives on all machines, mac requires a fixup which can only be run on mac 
           so we split these per-rid and join during the official build packaging.  -->
      <TensorFlowArchive
                         Include="@(TensorFlowConfig->'https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-%(Identity)-x86_64-$(TensorFlowVersion)%(FileExtension)')" />
      <!-- set up metdata used by all targets -->
      <TensorFlowArchive DownloadFile="$(BinDir)%(FileName)%(Extension)"
                         DownloadShaFile="$(BinDir)%(FileName)%(Extension).sha"
                         ExtractDirectory="$(BinDir)%(FileName)"
                         ExtractSemaphore="$(BinDir)%(FileName)\.extracted"
                         LocalShaFile="$(MSBuildProjectDirectory)\%(FileName)%(Extension).sha"/>
    </ItemGroup>
    <Message Importance="high" Text="%(TensorFlowConfig.Runtime)"/>
  </Target>

  <Target Name="DownloadArchives"
          DependsOnTargets="PrepareArchives"
          Inputs="$(MSBuildProjectFile)"
          Outputs="@(TensorFlowArchive->'%(DownloadFile)');@(AdditionalDownloadFile->'%(DownloadFile)')">
    <MakeDir Directories="$(BinDir)" />
    <ItemGroup>
      <_downloadFiles Include="@(TensorFlowArchive);@(AdditionalDownloadFile)" Url="%(Identity)" DestinationFile="%(DownloadFile)" />
    </ItemGroup>
    <Message Importance="High" Text="Downloading '%(_downloadFiles.Identity)' to '$(BinDir)'." />
    <DownloadFile SourceUrl="%(_downloadFiles.Identity)" DestinationFolder="$(BinDir)">
      <Output TaskParameter="DownloadedFile" ItemName="Content" />
    </DownloadFile>
  </Target>


  <Target Name="ValidateAndExtractArchives"
          DependsOnTargets="DownloadArchives"
          Inputs="@(TensorFlowArchive->'%(DownloadFile)')"
          Outputs="@(TensorFlowArchive->'%(ExtractSemaphore)')">

    <GetFileHash Files="@(TensorFlowArchive->'%(DownloadFile)')" Algorithm="SHA512">
      <Output
          TaskParameter="Items"
          ItemName="FilesWithHashes" />
    </GetFileHash>

    <Message Importance="High"
             Text="%(FilesWithHashes.Identity): %(FilesWithHashes.FileHash)" />

    <ItemGroup>
      <TensorFlowArchive>
        <DownloadSha>@(FilesWithHashes->'%(FileHash)')</DownloadSha>
        <LocalSha>$([System.IO.File]::ReadAllText('%(LocalShaFile)'))</LocalSha>
      </TensorFlowArchive>
    </ItemGroup>

    <!-- If specified we'll update the checked in SHAs with the downloaded ones. -->
    <!--<WriteLinesToFile  Condition="'$(UpdateSHA)' == 'true'"
          File="@(TensorFlowArchive->'%(LocalShaFile)')"
          Lines="@(TensorFlowArchive->'%(LocalShaFile)')" />-->

    <Error Condition="!Exists('%(TensorFlowArchive.LocalShaFile)')" Text="SHA file '%(TensorFlowArchive.LocalShaFile)' does not exist.  Build with /p:UpdateSHA=true to save it." />

    <Message Importance="High" Text="@TensorFlowArchive->'%(TensorFlowArchive.DownloadFile) - %(TensorFlowArchive.LocalSha) - %(TensorFlowArchive.DownloadSha)"/>

    <!-- Validate that the downloaded SHAs match the expected checked in SHAs -->
    <Error Condition="'%(TensorFlowArchive.LocalSha)' != '%(TensorFlowArchive.DownloadSha)'" Text="Downloaded file '%(TensorFlowArchive.DownloadFile)' has unexpected SHA.%0A  expected: %(_downloadedTensorFlowArchive.LocalSha)%0A  actual: %(_downloadedTensorFlowArchive.DownloadSha)%0ABuild with /p:UpdateSHA=true if you intentionally changed the URL and wish to update the SHAs, otherwise this could indicate an incomplete download or intercerpted URL and should be examined." />


    <!-- The archives are valid, lets extract them, ensuring an empty directory -->
    <RemoveDir Directories="@(TensorFlowArchive->'%(ExtractDirectory)')" />
    <MakeDir Directories="@(TensorFlowArchive->'%(ExtractDirectory)')" />

    <Message Importance="High" Text="Decompressing '%(TensorFlowArchive.DownloadFile)' to '%(TensorFlowArchive.ExtractDirectory)'." />

    <Unzip Condition="'%(TensorFlowArchive.FileExtension)' == '.zip'"
                               SourceFiles="%(TensorFlowArchive.DownloadFile)"
                               DestinationFolder="%(TensorFlowArchive.ExtractDirectory)" />

    <Exec Condition="'$(OS)' != 'Windows_NT' AND '%(TensorFlowArchive.FileExtension)' == '.tar.gz'"
          WorkingDirectory="$(MSBuildThisFileDirectory)"
          Command="tar -xzm --hard-dereference -f %(TensorFlowArchive.DownloadFile) -C %(TensorFlowArchive.ExtractDirectory)" />

    <Exec Condition="'$(OS)' != 'Windows_NT'"
          Command="chmod -R +w %(TensorFlowArchive.ExtractDirectory)" />

    <Touch Files="@(TensorFlowArchive->'%(ExtractSemaphore)')" AlwaysCreate="true" />
  </Target>

  <!-- Select the files we want to copy out of each archive. -->
  <Target Name="GetFilesFromArchive"
          DependsOnTargets="ValidateAndExtractArchives" >
    <ItemGroup>
      <!-- batch rather than transform so that we can split FilesFromArchive metadata -->
      <_fileFromArchive Include="%(TensorFlowArchive.FilesFromArchive)" ExtractDirectory="%(TensorFlowArchive.ExtractDirectory)" Runtime="%(TensorFlowArchive.Runtime)" />
      <_fileFromArchive DestinationFile="%(FileName)%(Extension)"/>
      <_fileFromArchive PackagePath="runtimes\%(_fileFromArchive.Runtime)\native\%(_fileFromArchive.DestinationFile)" />

      <!-- LICENSE from the package is actually THIRD_PARTY_NOTICES-->
      <_fileFromArchive Condition="'%(DestinationFile)' == 'LICENSE'" PackagePath="THIRD_PARTY_NOTICES.txt" Runtime="" />

      <!-- copy to packaging location -->
      <FilesFromArchive Include="@(_fileFromArchive->'%(ExtractDirectory)\%(Identity)')"
                        TargetPath="$(PackageAssetsPath)$(MSBuildProjectName)\%(PackagePath)" />
      <!-- include LICENSE that was downloaded from GitHub -->
      <FilesFromArchive Include="$(BinDir)\LICENSE"
                        TargetPath="$(PackageAssetsPath)$(MSBuildProjectName)\LICENSE.txt" />

      <!-- copy to NativeAssets location, only for current RID, so that they may be used by tests -->
      <!--<FilesFromArchive Condition="'$(PackageRID)' == '%(_fileFromArchive.Runtime)'"
                        Include="@(_fileFromArchive->'%(ExtractDirectory)\%(Identity)')"
                        TargetPath="$(NativeAssetsBuiltPath)\%(_fileFromArchive.DestinationFile)" />-->
    </ItemGroup>
  </Target>

  <Target Name="CopyFilesFromArchive"
          DependsOnTargets="GetFilesFromArchive">

    <Message Importance="High" Text="@(FilesFromArchive) -> %(FilesFromArchive.TargetPath)" />
    <Copy SourceFiles="@(FilesFromArchive)"
          DestinationFiles="@(FilesFromArchive->'%(TargetPath)')" />

  </Target>

  <Target Name="Clean">
    <Message Importance="High" Text="Deleting $(BinDir);$(ObjDir)" />
    <RemoveDir Directories="$(BinDir);$(ObjDir)" />
  </Target>
  
</Project>