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environment.sessionVariables cannot refer to the values of env vars, and as a result this has caused problems in a variety of scenarios. One use for these is that they're injected into /etc/profile, elewhere these are used to populate an 'envfile' for pam (`pam 5 pam_env.conf`) which mentions use of HOME being potentially problematic. Anyway if the goal is to make things easier for users, simply do the NIX_PATH modification as extraInit. This fixes the annoying problems generated by the current approach (#40165 and others) while hopefully serving the original goal. One way to check if things are borked is to try: $ sudo env | grep NIX_PATH Which (before this change) prints NIX_PATH variable with an unexpanded $HOME in the value. ------- This does mean the following won't contain user channels for 'will': $ sudo -u will nix-instantiate --eval -E builtins.nixPath However AFAICT currently they won't be present either, due to unescaped $HOME. Unsure if similar situation for other users of sessionVariables (not sudo) work with current situation (if they exist they will regress after this change AFAIK).
Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels https://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-18.03 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-18.03
For pull-requests, please rebase onto nixpkgs master.
NixOS Linux distribution source code is located inside
nixos/ folder.
- NixOS installation instructions
- Documentation (Nix Expression Language chapter)
- Manual (How to write packages for Nix)
- Manual (NixOS)
- Community maintained wiki
- Continuous package builds for unstable/master
- Continuous package builds for 18.03 release
- Tests for unstable/master
- Tests for 18.03 release
Communication: