on macports, what ports are supported by 'port select'?

Question

I know 'port select' works with gcc and python --> is there a way to get a full list of all the ports that are switchable by 'port select'?

(I want to make a generic 'select' util that delegates to rvm, port select, etc. and quickly let's me switch entire toolset chains)

thanks!

Answer 1

There is no way to ask the port select tool itself for a list, but just check the directory /opt/local/etc/select. Each selectable group has a directory there.

Answer 2

Raim's answer works with ports that have been previously installed. For a more comprehensive list, try:

port echo '*_select' | cut -d_ -f1