Hi, Marc Weber wrote: > Should > package-darcs behave the way > package-1.0 behaves? > if there is no alternative? > > I would say nix-env -i package should be able to install package-darcs if > there is none with given version availible. What do you think? > > Or would you prefer a different way marking a repository version ?
Nix-env considers the version number everything starting at the first digit following a dash. So in "quake3-icculus-1.33pre526" the package name is "quake3-icculus" and the version is "1.33pre526". So "package-darcs" and "package-1.0" would be considered different versions. What I usually do is give it a name like "foo-1.1-pre-r1234" (for a Subversion revision) or "foo-1.1-pre20070815" (for CVS / darcs / whatever). The "pre" string is treated specially when comparing versions, so that "1.0" < "1.1pre-r1234" < "1.1". The precise rules for the partial ordering of versions can be found here: http://nix.cs.uu.nl/dist/nix/nix-0.10.1/manual/#sec-nix-env (under "Versions"). A nice feature would be the ability to define your own ordering. This would allow packages to be renamed. For instance, yesterday I found out that the "docbook5-xsl" package should really be named "docbook-xsl-ns". So you could like to have a rule like "docbook5-xsl" < "docbook-xsl-ns" so that nix-env will upgrade the former to the latter. -- Eelco Dolstra | http://www.cs.uu.nl/~eelco _______________________________________________ nix-dev mailing list [email protected] https://mail.cs.uu.nl/mailman/listinfo/nix-dev
