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7f286353 IB |
1 | { config, lib, pkgs, ... }: |
2 | ||
3 | # https://github.com/michalrus/dotfiles/commit/ebd5fa9583f82589f23531647aa677feb3f8d344#diff-4d353005ef5b3e37f33c07332b8523edR1 | |
4 | # A temporary hack to `loginctl enable-linger $somebody` (for | |
5 | # multiplexer sessions to last), until this one is unresolved: | |
6 | # https://github.com/NixOS/nixpkgs/issues/3702 | |
7 | # | |
8 | # Usage: `users.extraUsers.somebody.linger = true` or slt. | |
9 | ||
10 | with lib; | |
11 | ||
12 | let | |
13 | ||
14 | dataDir = "/var/lib/systemd/linger"; | |
15 | ||
16 | lingeringUsers = map (u: u.name) (attrValues (flip filterAttrs config.users.users (n: u: u.linger))); | |
17 | ||
18 | lingeringUsersFile = builtins.toFile "lingering-users" | |
19 | (concatStrings (map (s: "${s}\n") | |
20 | (sort (a: b: a < b) lingeringUsers))); # this sorting is important for `comm` to work correctly | |
21 | ||
22 | updateLingering = pkgs.writeScript "update-lingering" '' | |
23 | if [ ! -e ${dataDir} ]; then | |
24 | install -m 0755 -o root -g root -d ${dataDir} | |
25 | fi | |
26 | if [ -e ${dataDir} ] ; then | |
27 | ls ${dataDir} | sort | comm -3 -1 ${lingeringUsersFile} - | xargs -r ${pkgs.systemd}/bin/loginctl disable-linger | |
28 | ls ${dataDir} | sort | comm -3 -2 ${lingeringUsersFile} - | xargs -r ${pkgs.systemd}/bin/loginctl enable-linger | |
29 | fi | |
30 | ''; | |
31 | ||
32 | in | |
33 | ||
34 | { | |
35 | options = { | |
36 | users.users = mkOption { | |
37 | options = [{ | |
38 | linger = mkEnableOption "lingering for the user"; | |
39 | }]; | |
40 | }; | |
41 | }; | |
42 | ||
43 | config = { | |
e34b3079 IB |
44 | system.activationScripts.update-lingering = { |
45 | deps = ["users"]; | |
46 | text = "${updateLingering}"; | |
47 | }; | |
7f286353 IB |
48 | }; |
49 | } |