Lluís Batlle has asked about how to add env vars today. I've posted a small patch in the past: http://thread.gmane.org/gmane.linux.distributions.nixos/44
I'd vote for this way to implement it: Make the builder.pl creating the final profiile execute nix-support/post-install/* scripts passing the list of derivations to be installed. Then you can add a derivation to your profile providing a post-install script collecting env vars from $out/nix-support/env writing the result to $profile/bash-sourceme (or such) Example: PythonLibA $out/nix-support/env contents PYTHONPATH=/nix/store/xxxxxxxxx-PythonLibA/.../site-packages:$PYTHONPATH PythonLibB $out/nix-support/env contents PYTHONPATH=/nix/store/xxxxxxxxx-PythonLibB/.../site-packages:$PYTHONPATH perl lib $out/nix-support/env contents PERLIMPORTS=/nix/store/xxxxxxxxx-perl-lib/lib/...:$PYTHONPATH So the post install script iterates over those files and creates one containing PYTHONPATH=/nix/store/xxxxxxxxx-PythonLibA/.../site-packages:$PYTHONPATH PYTHONPATH=/nix/store/xxxxxxxxx-PythonLibB/.../site-packages:$PYTHONPATH PERLIMPORTS=/nix/store/xxxxxxxxx-perl-lib/lib/...:$PYTHONPATH If you don't install the post install script nohting will change. How do you like this? Marc Weber _______________________________________________ nix-dev mailing list [email protected] https://mail.cs.uu.nl/mailman/listinfo/nix-dev
