ConfigTransforms.targets

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <UsingTask TaskName="TransformXml" AssemblyFile="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\Web\Microsoft.Web.Publishing.Tasks.dll" />
    
    <!-- This will allow the config file to be copied to any project referencing the project that need the config transformation -->
   <PropertyGroup>
        <AllowedReferenceRelatedFileExtensions>
            $(AllowedReferenceRelatedFileExtensions);
            .dll.config
        </AllowedReferenceRelatedFileExtensions>
    </PropertyGroup>

    <!-- This is needed to apply the transformation before the target that resolves project references -->
    <PropertyGroup>
        <ResolveReferencesDependsOn>
            TransformConfig;
            $(ResolveReferencesDependsOn)
        </ResolveReferencesDependsOn>
    </PropertyGroup>

    <Target Name="TransformConfig" BeforeTargets="_CopyAppConfigFile" Condition="Exists('App.Publish.config') AND '$(BuildingInsideVisualStudio)' != 'true' ">
        <!--Generate transformed app config in the intermediate directory-->
        <TransformXml Source="App.config" Destination="$(IntermediateOutputPath)$(TargetFileName).config" Transform="App.Publish.config" />
        <!--Force build process to use the transformed configuration file from now on.-->
        <ItemGroup>
            <AppConfigWithTargetPath Remove="App.config" />
            <AppConfigWithTargetPath Include="$(IntermediateOutputPath)$(TargetFileName).config">
                <TargetPath>$(TargetFileName).config</TargetPath>
            </AppConfigWithTargetPath>
        </ItemGroup>
    </Target>
</Project>