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44 lines
1 KiB
Nix
44 lines
1 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 = types.attrsOf (types.loeOf types.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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