Package.targets

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <!-- This target runs after all referenced projects have been built, but before the *.FileListAbsolute.txt file gets saved to support incremental build. -->
  <Target Name="PrepareForNugetPackaging" AfterTargets="ResolveProjectReferences">
    <Error Condition="!Exists('$(PackageSpecFile)')" Text="PackageSpecFile must be a valid path to a .nuspec file that defines NuGet package structure."/>

    <!-- Read PackageId from the .nuspec file -->
    <XmlPeek XmlInputPath="$(PackageSpecFile)" Query="/package/metadata/id/text()">
      <Output TaskParameter="Result" PropertyName="PackageId"/>
    </XmlPeek>

    <!-- Mark .nupkg file as generated by build so that Clean can remove it -->
    <ItemGroup>
      <FileWrites Include="$(PackageOutputDir)\$(PackageId)*.nupkg" />
      <FileWrites Include="$(PackageOutputDir)\$(PackageId)*.symbols.nupkg" Condition="'$(PackageSymbols)' == 'True'"/>
    </ItemGroup>
  </Target>
  
  <!-- This target runs after build to guarantee that all dependent files have already been copied to output directory. -->
  <Target Name="BuildNugetPackage" AfterTargets="Build">
    <Error Condition="!Exists('$(PackageVersionFile)')" Text="PackageVersionFile must be a valid path to a .dll file that defines NuGet package version information."/>
    
    <!-- Extract package properties from the .dll file -->
    <GetFileVersionInfo File="$(PackageVersionFile)">
      <Output TaskParameter="VersionInfo" ItemName="VersionInfo" />
    </GetFileVersionInfo>
    <PropertyGroup>
      <PackageVersion>@(VersionInfo->'%(FileMajorPart)').@(VersionInfo->'%(FileMinorPart)').@(VersionInfo->'%(FileBuildPart)')</PackageVersion>
      <PackageVersion Condition="'$(StableRelease)' != 'True'">$(PackageVersion)-build@(VersionInfo->'%(FilePrivatePart)')</PackageVersion>
      <PackageAuthor>@(VersionInfo->'%(CompanyName)')</PackageAuthor>
      <PackageImage>http://appanacdn.blob.core.windows.net/cdn/icons/aic.png</PackageImage>
      <PackageCopyright>@(VersionInfo->'%(LegalCopyright)')</PackageCopyright>
      <PackageSymbols Condition="'$(PackageSymbols)' == ''">false</PackageSymbols>
      <PackageCommand>$(NuGetCommand) pack "$(PackageSpecFile)" -Properties "version=$(PackageVersion);author=$(PackageAuthor);image=$(PackageImage);copyright=$(PackageCopyright);configuration=$(Configuration)" -BasePath "$(BinRoot)" -OutputDirectory "$(PackageOutputDir)"</PackageCommand>
      <PackageCommand Condition="'$(PackageSymbols)' == 'True'">$(PackageCommand) -Symbols</PackageCommand>
    </PropertyGroup>

    <RemoveDir Directories="$(PackageOutputDir)"/>
    
    <!-- Make sure package output directory exists (expected by NuGet). -->
    <MakeDir Directories="$(PackageOutputDir)"/>
    
    <!-- Generate .nupkg file -->
    <Exec Command="$(PackageCommand)" />
  </Target>
  
  <UsingTask TaskName="GetFileVersionInfo" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v12.0.dll">
    <ParameterGroup>
      <File ParameterType="System.String" Required="true" />
      <VersionInfo ParameterType="Microsoft.Build.Framework.ITaskItem" Output="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System" />
      <Using Namespace="System.Diagnostics" />
      <Using Namespace="Microsoft.Build.Utilities" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
          FileVersionInfo versionInfo = FileVersionInfo.GetVersionInfo(this.File);
          this.VersionInfo = new TaskItem(this.File);
          this.VersionInfo.SetMetadata("Comments", versionInfo.Comments);
          this.VersionInfo.SetMetadata("CompanyName", versionInfo.CompanyName);
          this.VersionInfo.SetMetadata("FileMajorPart", versionInfo.FileMajorPart.ToString());          
          this.VersionInfo.SetMetadata("FileMinorPart", versionInfo.FileMinorPart.ToString());          
          this.VersionInfo.SetMetadata("FileBuildPart", versionInfo.FileBuildPart.ToString()); 
          this.VersionInfo.SetMetadata("FilePrivatePart", versionInfo.FilePrivatePart.ToString().PadLeft(5,'0'));         
          this.VersionInfo.SetMetadata("LegalCopyright", versionInfo.LegalCopyright);
          this.VersionInfo.SetMetadata("ProductName", versionInfo.ProductName);
        ]]>
      </Code>
    </Task>
  </UsingTask>
  
</Project>