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nix-darwin/modules/environment.nix
2016-10-21 23:32:03 +02:00

82 lines
2.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.environment;
exportVariables =
mapAttrsToList (n: v: ''export ${n}="${v}"'') cfg.variables;
aliasCommands =
mapAttrsFlatten (n: v: ''alias ${n}="${v}"'') cfg.shellAliases;
in {
options = {
environment.systemPackages = mkOption {
type = types.listOf types.package;
default = [];
example = literalExample "[ pkgs.nix-repl pkgs.vim ]";
description = ''
The set of packages that appear in
/run/current-system/sw. These packages are
automatically available to all users, and are
automatically updated every time you rebuild the system
configuration. (The latter is the main difference with
installing them in the default profile,
<filename>/nix/var/nix/profiles/default</filename>.
'';
};
environment.extraOutputsToInstall = mkOption {
type = types.listOf types.str;
default = [ ];
example = [ "doc" "info" "devdoc" ];
description = "List of additional package outputs to be symlinked into <filename>/run/current-system/sw</filename>.";
};
environment.variables = mkOption {
type = types.attrsOf (types.loeOf types.str);
default = {};
description = ''
A set of environment variables used in the global environment.
These variables will be set on shell initialisation.
The value of each variable can be either a string or a list of
strings. The latter is concatenated, interspersed with colon
characters.
'';
apply = mapAttrs (n: v: if isList v then concatStringsSep ":" v else v);
};
environment.shellAliases = mkOption {
type = types.attrsOf types.str;
default = {};
example = { ll = "ls -l"; };
description = ''
An attribute set that maps aliases (the top level attribute names in
this option) to command strings or directly to build outputs. The
alises are added to all users' shells.
'';
};
};
config = {
system.build.setEnvironment = pkgs.writeText "set-environment"
(concatStringsSep "\n" exportVariables);
system.build.setAliases = pkgs.writeText "set-aliases"
(concatStringsSep "\n" aliasCommands);
system.path = pkgs.buildEnv {
name = "system-path";
paths = cfg.systemPackages;
inherit (cfg) extraOutputsToInstall;
};
};
}