Hi. Please, also take a look also on the topic "nix-env ignores NIX_PATH" - it contains some answers on NIX_PATH theme.
+1 for nix-env/nixos-rebuild -I unification. I think their cmdline interface is too complicated. 2012/7/6 Mathijs Kwik <[email protected]>: > On Thu, Jul 5, 2012 at 11:07 PM, Eelco Dolstra > <[email protected]> wrote: >> Hi, >> >> On 05/07/12 17:02, Mathijs Kwik wrote: >> >>>> And a question about NIX_PATH: >>>> by default it's >>>> >>> NIX_PATH='/nix/var/nix/profiles/per-user/root/channels/nixos:nixpkgs=/etc/nixos/nixpkgs:nixos=/etc/nixos/nixos:nixos-config=/etc/nixos/configuration.nix:services=/etc/nixos/services' >>>> >>>> I understand the name=value pairs give the <name> syntax, but how does a >>>> plain >>> dirname (like the channels/nixos dir) get handled? >> >> See the description of NIX_PATH in nix-env(1). > > Nice, I should read the man pages more :) > >> >>>> I see it contains nixos and nixpkgs, but also a cryptic default.nix >> >> The default.nix just includes Nixpkgs so that nix-env can find the Nixpkgs >> copy >> in the NixOS channel. >> >>>> My local /home/mathijs/nix-dev dir contains nixos and nixpkgs. >>>> If I want to switch to using those instead of the channel (temporarily), >>>> can I >>> just point NIX_PATH there? >> >> Yes, or use -I (e.g. "nixos-rebuild switch -I ~mathijs/nix-dev"). > > This works for nixos-rebuild, but not for nix-env. > > Now, I know I can fiddle with the synlinks below ~/.nix-defexpr, but I > would prefer not to. > Say I can normally upgrade a package by > nix-env -iA nixos.pkgs.xterm > > Now I want to do this again, but now using my local ~/nix-dev. > > I tried > nix-env -iA nixos.pkgs.xterm -I ~/nix-dev > nix-env -iA nixos.pkgs.xterm -f ~/nix-dev > > NIX_PATH="~/nix-dev" nix-env -iA nixos.pkgs.xterm > NIX_PATH="nixpkgs=~/nix-dev/nixpkgs:nixos=~/nix-dev/nixos" nix-env -iA > nixos.pkgs.xterm > > none of these worked. > > >> >> -- >> Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ >> _______________________________________________ >> nix-dev mailing list >> [email protected] >> http://lists.science.uu.nl/mailman/listinfo/nix-dev > _______________________________________________ > nix-dev mailing list > [email protected] > http://lists.science.uu.nl/mailman/listinfo/nix-dev _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
