44 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
# This module defines a system-wide environment that will be
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# initialised by pam_env (that is, not only in shells).
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{ 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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in
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{
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  options = {
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    environment.sessionVariables = mkOption {
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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 by PAM.
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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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      type = with types; attrsOf (either str (listOf str));
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      apply = mapAttrs (n: v: if isList v then concatStringsSep ":" v else v);
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    };
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  };
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  config = {
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    system.build.pamEnvironment = pkgs.writeText "pam-environment"
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       ''
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         ${concatStringsSep "\n" (
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           (mapAttrsToList (n: v: ''${n}="${concatStringsSep ":" v}"'')
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             (zipAttrsWith (const concatLists) ([ (mapAttrs (n: v: [ v ]) cfg.sessionVariables) ]))))}
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       '';
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  };
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}
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