This hooks enforces that all files in the top-directory of a port match:

• .*\.mk
• Makefile.*
• dist-info.*
• pkg-descr.*
• pkg-message.*
• pkg-plist.*
• pkg-post.*

An example error message would look like:

[pre-commit] ERROR: invalid file 'Foo' in 'kate/editors'
            Consider moving non-standard files to files/ or force-ignore this hook.