Determine if MSBuild CoreCompile will run and call custom target

Question

This seems like an obvious thing to want to do but I have pulled most of my hair out trying to find any examples on the web or do it myself.

I have a c# solution wit

Answer 1

Even if you got the list of projects needing compilation, if you update the assemblyinfo.cs of one of them, it may induce a change that triggers a compilation of another project.

So, simpliest way is to generate all AssemblyInfo.cs files according to source control revision number. You could even get latest revision number for each project directory, effectively knowing when was the "last" modification on this project.

See this question : How can I change AssemblyProduct, AssemblyTitle using MSBuild?

According to your comment, have you looked into the BeforeBuild and AfterBuild targets (at the end of your csproj file) :