MSBuild targets for config transforms. Will pick up any *.config in root or config folder per environment and also allows for machine specific transforms.

deploy.targets

<?xml version="1.0" encoding="utf-8" ?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

	<UsingTask TaskName="TransformXml" AssemblyFile=".\Deploy\Microsoft.Web.Publishing.Tasks.dll" />

	<ItemGroup>
		<ConfigFiles Include=".\*.$(Environment).config;.\config\*.$(Environment).config">
			<OriginalPath>%(ConfigFiles.RootDir)%(ConfigFiles.Directory)$([System.String]::Copy('%(ConfigFiles.Filename)').Replace('.$(Environment)',''))%(ConfigFiles.Extension)</OriginalPath>
		</ConfigFiles>
		<ConfigFiles Include=".\*.$(COMPUTERNAME).config;.\config\*.$(COMPUTERNAME).config">
			<OriginalPath>%(ConfigFiles.RootDir)%(ConfigFiles.Directory)$([System.String]::Copy('%(ConfigFiles.Filename)').Replace('.$(COMPUTERNAME)', ''))%(ConfigFiles.Extension)</OriginalPath>
		</ConfigFiles>
		<Transforms Include=".\*.*.config;.\config\*.*.config" />
	</ItemGroup>
	
	<Target Name="TransformConfigs">
		<Message Text="Transforming @(ConfigFiles->Count()) config(s)..." Importance="High" Condition="'@(ConfigFiles->Count())' &gt; 0" />
		<TransformXml Source="%(ConfigFiles.OriginalPath)" Transform="%(ConfigFiles.FullPath)" Destination="%(ConfigFiles.OriginalPath)" StackTrace="true" Condition="'@(ConfigFiles->Count())' &gt; 0" />
	</Target>

	<Target Name="DeleteTransforms">
		<Delete Files="%(Transforms.FullPath)" />
	</Target>
	
	<Target Name="Debug">
		<Message Text="Found transform %(ConfigFiles.Filename)" Condition="'@(ConfigFiles->Count())' &gt; 0" />
		<Message Text="Deleting %(Transforms.Filename)" />
	</Target>

</Project>