76 lines
2 KiB
Nix
76 lines
2 KiB
Nix
{
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config,
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pkgs,
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lib,
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...
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}: let
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inherit (lib) mkOption mkEnableOption types;
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cfg = config.services.transience;
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in {
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meta.maintainers = [lib.maintainers.NotAShelf];
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options.services.transience = {
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enable = mkEnableOption "transience";
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user = mkOption {
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type = with types; nullOr string;
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default = null;
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description = "The user that the directories will be relative to";
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};
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days = mkOption {
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type = types.int;
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default = 30;
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description = "Number of days after which files are deleted";
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};
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directories = mkOption {
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type = with types; listOf path;
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default = [];
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description = ''
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A list of directories that will be cleaned.
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Must be relative to the user's home directory.
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'';
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};
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};
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config = {
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assertions = [
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{
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assertion = cfg.enable -> cfg.user == null;
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message = ''
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You have enabled services.transience, but have not specified your user. You must specify a "main user"
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for your system for Transience to work properly.
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'';
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}
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{
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assertion = cfg.directories == [];
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message = ''
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You have enabled services.transience, but have not specified any directories to clean up. Please specify
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at least one folder. This option defaults to an empty list, but you must specify a list of directories for
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Transience to work properly.
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'';
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}
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];
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systemd.user.services.transience = let
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dirs =
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map (
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x:
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config.home-manager.users.${cfg.user}.home.homeDirectory + "/" + x
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)
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cfg.directories;
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in {
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Install.wantedBy = ["default.target"];
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Service.ExecStart = ''
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${builtins.concatStringsSep "\n" (map (x: "find ${
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lib.escapeShellArg x
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} -mtime +${cfg.days} -exec rm -rv {} + -depth;")
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dirs)}
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'';
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Unit.Description = "Clean up transient directories";
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};
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};
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}
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