nixpkgs/lib/from-env.nix

mirror of https://github.com/NixOS/nixpkgs.git synced 2024-12-04 21:03:15 +00:00
name: default:
let value = builtins.getEnv name; in
if value == "" then default else value
* Make eval-config.nix a bit more general to make it easier to build other kinds of configurations (like the installation CD). svn path=/nixos/branches/modular-nixos/; revision=15864 2009-06-05 13:19:39 +00:00			`name: default:`
			`let value = builtins.getEnv name; in`
			`if value == "" then default else value`