build.proj

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  
  <PropertyGroup>
    <ProjectDir>$(MSBuildThisFileDirectory)</ProjectDir>
    <SourceDir>$(ProjectDir)src\</SourceDir>
    <BinDir>$(ProjectDir)bin\</BinDir>
    <ToolsDir>$(BinDir)tools\</ToolsDir>
    
    <NuGetToolPath>$(ToolsDir)NuGet.exe</NuGetToolPath>

    <NuGetConfigFile>$(SourceDir)nuget\NuGet.Config</NuGetConfigFile>
    <NuGetConfigCommandLine
      Condition="Exists($(NuGetConfigFile))">-ConfigFile &quot;$(NuGetConfigFile)&quot;</NuGetConfigCommandLine>
    <PackagesDir>$(SourceDir)packages\</PackagesDir>
  </PropertyGroup>

  <ItemGroup>
    <BuildToolFiles Include="$(SourceDir)Microsoft.DotNet.Build.Tasks\Targets\*" />
    <PackageConfigs Include="$(SourceDir)*\packages.config" />
  </ItemGroup>
  
  <UsingTask TaskName="DownloadFile" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
    <ParameterGroup>
      <Address ParameterType="System.String" Required="true"/>
      <FileName ParameterType="System.String" Required="true" />
    </ParameterGroup>
    <Task>
      <Reference Include="System" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
           var directory = System.IO.Path.GetDirectoryName(FileName);
           System.IO.Directory.CreateDirectory(directory);
           var client = new System.Net.WebClient();
           client.Proxy = System.Net.WebRequest.DefaultWebProxy;
           client.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
           client.DownloadFile(Address, FileName);
        ]]>
      </Code>
    </Task>
  </UsingTask>
  
  <Target Name="Clean">
    <!-- Execute build tools -->
    <MSBuild
      Projects="$(ToolsDir)fxbuild.proj"
      SkipNonexistentProjects="true"
      Targets="Clean" />
      
    <!-- Remove build tools -->
    <Delete
      Files="@(BuildToolFiles->'$(ToolsDir)Targets\%(Filename)%(Extension)')" />
  </Target>

  <Target Name="Build">
    <!-- Download latest nuget.exe -->
    <DownloadFile
      Condition="!Exists($(NuGetToolPath))"
      Address="http://nuget.org/nuget.exe"
      FileName="$(NuGetToolPath)" />
  
    <!-- Restore packages -->
    <Exec
      Condition="'@(PackageConfigs)'!=''"
      StandardOutputImportance="Low"
      Command="&quot;$(NuGetToolPath)&quot; restore &quot;%(PackageConfigs.FullPath)&quot; -PackagesDirectory &quot;$(PackagesDir) &quot; $(NuGetConfigCommandLine)" />

    <!-- Pre-build tasks and targets -->
    <MSBuild
      Projects="$(SourceDir)BuildTools.sln"
      Properties="OutDir=$(ToolsDir);BaseIntermediateOutputPath=$(ToolsDir)obj\" />

    <!-- Execute build tools -->
    <MSBuild
      Projects="$(ToolsDir)fxbuild.proj"
      Properties="$(FxBuildProjectProperties)"
      Targets="Build" />
  </Target>
  
  <Target Name="Rebuild" DependsOnTargets="Clean;Build" />

</Project>