I know I will chase this one for ever if I don’t put it up here…
We ran into a situation where we needed to tweak the AppSettings-section of an configuration before tests in the build script.
Luckily there is help to be found. With the XmlUpdate-task (in the MSBuild Community Tasks) this can be accomplished. IF you know how to write the XPath-query.
Here is how (found it here):
<XmlUpdate Namespace=”http://schemas.microsoft.com/.NetConfiguration/v2.0” XmlFileName=”$(SourceDir)\Core\ABSuite\ABClient\App.config”
Xpath=”//configuration/appSettings/add[@key=’Main.ConnectionString’]/@value” Value=”$(DatabaseConnectionString)” />
Also here is a great site to pick up some XPath-skills.