100 lines
2.7 KiB
Nix
100 lines
2.7 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.system.permown;
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nameGenerator = path: "permown.${replaceStrings [ "/" ] [ "_" ] path}";
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in
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{
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options.system.permown = mkOption {
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default = { };
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type = with types;
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attrsOf (submodule ({ config, ... }: {
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options = {
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directory-mode = mkOption {
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default = "=rwx";
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type = types.str;
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};
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file-mode = mkOption {
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default = "=rw";
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type = types.str;
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};
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group = mkOption {
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apply = x: if x == null then "" else x;
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default = null;
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type = types.nullOr types.str;
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};
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owner = mkOption { type = types.str; };
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path = mkOption {
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default = config._module.args.name;
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type = types.path;
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};
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umask = mkOption {
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default = "0027";
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type = types.str;
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};
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timer = mkOption {
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default = "hourly";
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type = types.str;
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description =
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"OnCalendar string on how frequent should this command run";
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};
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};
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}));
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};
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config =
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let plans = lib.attrValues cfg;
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in mkIf (plans != [ ]) {
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system.activationScripts.permown =
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let
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mkdir = { path, ... }: ''
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${pkgs.coreutils}/bin/mkdir -p ${path}
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'';
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in
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concatMapStrings mkdir plans;
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systemd.services = listToAttrs (flip map plans
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({ path, directory-mode, file-mode, owner, group, umask, ... }: {
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name = nameGenerator path;
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value = {
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environment = {
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DIR_MODE = directory-mode;
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FILE_MODE = file-mode;
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OWNER_GROUP = "${owner}:${group}";
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ROOT_PATH = path;
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};
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path = [ pkgs.coreutils pkgs.findutils pkgs.inotifyTools ];
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serviceConfig = {
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ExecStart = pkgs.writers.writeDash "permown" ''
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set -efu
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find "$ROOT_PATH" -exec chown -h "$OWNER_GROUP" {} +
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find "$ROOT_PATH" -type d -exec chmod "$DIR_MODE" {} +
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find "$ROOT_PATH" -type f -exec chmod "$FILE_MODE" {} +
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'';
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PrivateTmp = true;
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Restart = "always";
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RestartSec = 10;
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UMask = umask;
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};
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wantedBy = [ "multi-user.target" ];
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};
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}));
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systemd.timers = listToAttrs (flip map plans ({ path, timer, ... }: {
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name = nameGenerator path;
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value = {
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wantedBy = [ "multi-user.target" ];
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timerConfig.OnCalendar = timer;
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};
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}));
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};
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}
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