MSBuild Script and VS2010 publish apply Web.config Transform
Alternatively, you try using the XDT Transformation Tool:
http://ctt.codeplex.com
I'm using this instead of messing with obscure msbuild targets. Works with app.config not just web.config.
I was looking for similar information and didn't quite find it, so I did some digging around in the .targets files that come with Visual Studio 2010 and MSBuild 4.0. I figured that was the best place to look for the MSBuild task that would perform the transformation.
As far as I have been able to tell, the following MSBuild task is used:
<Project ToolsVersion="4.0"
DefaultTargets="Deploy"
xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<UsingTask TaskName="TransformXml"
AssemblyFile="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v10.0\Web\Microsoft.Web.Publishing.Tasks.dll"/>
<PropertyGroup>
<ProjectPath>C:\Path to Project\Here</ProjectPath>
<DeployPath>C:\Path to Deploy\There</DeployPath>
<TransformInputFile>$(ProjectPath)\Web.config</TransformInputFile>
<TransformFile>$(ProjectPath)\Web.$(Configuration).config</TransformFile>
<TransformOutputFile>$(DeployPath)\Web.config</TransformOutputFile>
<StackTraceEnabled>False</StackTraceEnabled>
</PropertyGroup>
<Target Name="Transform">
<TransformXml Source="$(TransformInputFile)"
Transform="$(TransformFile)"
Destination="$(TransformOutputFile)"
Condition="some condition here"
StackTrace="$(StackTraceEnabled)" />
</Target>
</Project>
I have tested the above and can confirm that it works. You might need to tweak the structure a bit to fit with your build script better.
You should be able to accomplish this by using the Package target and specifying the temp directory.
msbuild solution.sln /p:Configuration=Release;DeployOnBuild=true;DeployTarget=Package;_PackageTempDir=..\publish
http://pattersonc.com/blog/index.php/2010/07/15/visual-studio-2010-publish-command-from-msbuild-command-line/