FlubuCore.Diff is a FlubuCore plugin. It adds Diff task to FlubuCore task fluent interface. Diff task compares 2 specified files and generates html report with differences.

protected override void ConfigureTargets(ITaskContext context)
{
       context.Tasks().DiffTask("FirstFile.config", "SecondFile.config", "Diff.html");
}

Diff generated report example:

Search for FlubuCore.Diff on nuget.