On Sun, 2008-08-03 at 10:48 +0200, Pjotr Prins wrote: > On Sun, Aug 03, 2008 at 12:25:13AM +0200, Pjotr Prins wrote: > > This can not be right! > > HELP! > > Ruby install gets it wrong - Python appears to do the right thing with > NIX (though I doubt eggs will work). I am not enough of a NIX guru to > fix it. > > When you do: > > Install ruby > Install rubygems (which should really be named ruby-gem) > gem install rake > > nix-store --verify --check-contents > checking path existence > path `/nix/store/v914ms0apfk2jbkm5kzqp4w35nbkcx1c-ruby-1.8.7-p22' was > modified! expected hash > `a4b66e33ee2833d2af00932469a3ce394cacdfefce27fdee19ff37500285a61d', got > `788c65c808a3582923fb8345f5906996b8abc758adfb6f76ff71d097eaa60c71' > > I presume this is not OK.
No it is not. I'm also wondering how that is possible, since (I think) we strip the 'w' bit off the store paths. > I guess this is trickier than the eye meets. You don't want an > external package manager to modify the store. So these 'gems' can not > be installed under /nix/store as gems don't use nix-env. > > But you also don't want them on the standard path, like > /var/lib/gems, as there may be another gem installer running on the > hosting OS (Debian in, my case). > > I think the only sensible alternative is a special NIX path for this > type of effect. E.g. /var/lib/nix/gems and > /usr/lib/nix/ruby/site-config. > > The *correct* way would be to modify Ruby gems to use NIX for package > management. But this may be a little hard and does not prevent other > users to try and mix in the wrong gems. > > Note to all: People are hooked on gems - we can't get them off. > > I need some advise. In the past we have used wrapper packages for this. It would work a bit like this (but I don't know how it would impact Ruby things): 1 install a package with Nix 2 install addons 3 create an expression, which takes 1 and 2 as input and creates a wrapper package, that combines the two packages, using environment variables, search paths, and so on I don't know if setting search paths and environment variables and all is possible with Ruby gems. Is there any easy documentation about it? armijn -- ------------------------------------------------------------------------- [EMAIL PROTECTED] | http://www.uulug.nl/ | UULug: Utrecht Linux Users Group ------------------------------------------------------------------------- _______________________________________________ nix-dev mailing list [email protected] https://mail.cs.uu.nl/mailman/listinfo/nix-dev
