home-manager/modules/services/getmail.nix
Robert Helgesson 5f433eb164
Move platform check into modules
Before, loading a module would be guarded by an optional platform
condition. This made it possible to avoid loading and evaluating a
module if it did not support the host platform.

Unfortunately, this made it impossible to share a single configuration
between GNU/Linux and Darwin hosts, which some wish to do.

This removes the conditional load and instead inserts host platform
assertions in the modules that are platform specific.

Fixes #1906
2021-07-18 20:43:22 +02:00

61 lines
1.7 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.getmail;
accounts =
filter (a: a.getmail.enable) (attrValues config.accounts.email.accounts);
# Note: The getmail service does not expect a path, but just the filename!
renderConfigFilepath = a:
if a.primary then "getmailrc" else "getmail${a.name}";
configFiles =
concatMapStringsSep " " (a: " --rcfile ${renderConfigFilepath a}") accounts;
in {
options = {
services.getmail = {
enable = mkEnableOption
"the getmail systemd service to automatically retrieve mail";
frequency = mkOption {
type = types.str;
default = "*:0/5";
example = "hourly";
description = ''
The refresh frequency. Check <literal>man systemd.time</literal> for
more information on the syntax. If you use a gpg-agent in
combination with the passwordCommand, keep the poll
frequency below the cache-ttl value (as set by the
<literal>default</literal>) to avoid pinentry asking
permanently for a password.
'';
};
};
};
config = mkIf cfg.enable {
assertions = [
(lib.hm.assertions.assertPlatform "services.getmail" pkgs
lib.platforms.linux)
];
systemd.user.services.getmail = {
Unit = { Description = "getmail email fetcher"; };
Service = { ExecStart = "${pkgs.getmail}/bin/getmail ${configFiles}"; };
};
systemd.user.timers.getmail = {
Unit = { Description = "getmail email fetcher"; };
Timer = {
OnCalendar = "${cfg.frequency}";
Unit = "getmail.service";
};
Install = { WantedBy = [ "timers.target" ]; };
};
};
}