Hidden in plain sight

What’s your opinion on pre and post build steps? Personally I prefer all my build operations to be performed by the build script itself, so that if there are any problems to be fixed or changes to be made, I only have one place to look and one thing to update. Post-build options are what you look at hours into a problem when you finally remember that you have them, so can make debugging your build process much more difficult.

Let me know what you think.