Hi, The way I work with Haskell is this:
* set up default.nix in project directory * run nix-shell --pure to pull in all dependencies * optionally manually run cabal build in case some CPP and symbol generation needs to happen (I'd like to know the proper way here but that's for another thread) * once I'm ready, open one of the files in the project in emacs * evaluate (setq haskell-program-name "nix-shell --pure --command ghci") * use the C-c C-l combo to start GHCi and work with the loaded file My problem is that whenever I press C-c C-l again to reload the file after I've made some changes, it seems to re-invoke nix-shell or something. [shana@lenalee:~]$ df | grep /dev/sdb1 /dev/sdb1 51475068 39467668 9369576 81% / -- reload here [shana@lenalee:~]$ df | grep /dev/sdb1 /dev/sdb1 51475068 39467684 9369560 81% / That is every time I reload, more disk space gets eaten. This is a real problem when hacking on larger projects, I had previously eaten through 6GB+ of space before I ran out of memory on /. Does anyone know of a proper way to invoke GHCi without effectively restarting the shell? Am I barking up the wrong tree perhaps and should be taking it to emacs haskell-mode guys? I suppose the question I'm asking is ‘is there a way to drop into an existing nix-shell session?’. -- Mateusz K. _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
