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