nixpkgs/nixos/modules/services/networking/prayer.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

104 lines
2.0 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
inherit (pkgs) prayer;
cfg = config.services.prayer;
stateDir = "/var/lib/prayer";
prayerUser = "prayer";
prayerGroup = "prayer";
prayerExtraCfg = pkgs.writeText "extraprayer.cf" ''
prefix = "${prayer}"
var_prefix = "${stateDir}"
prayer_user = "${prayerUser}"
prayer_group = "${prayerGroup}"
sendmail_path = "/var/setuid-wrappers/sendmail"
use_http_port ${cfg.port}
${cfg.extraConfig}
'';
prayerCfg = pkgs.runCommand "prayer.cf" { } ''
# We have to remove the http_port 80, or it will start a server there
cat ${prayer}/etc/prayer.cf | grep -v http_port > $out
cat ${prayerExtraCfg} >> $out
'';
in
{
###### interface
options = {
services.prayer = {
enable = mkOption {
default = false;
description = ''
Whether to run the prayer webmail http server.
'';
};
port = mkOption {
default = "2080";
description = ''
Port the prayer http server is listening to.
'';
};
extraConfig = mkOption {
default = "" ;
description = ''
Extra configuration. Contents will be added verbatim to the configuration file.
'';
};
};
};
###### implementation
config = mkIf config.services.prayer.enable {
environment.systemPackages = [ prayer ];
users.extraUsers = singleton
{ name = prayerUser;
uid = config.ids.uids.prayer;
description = "Prayer daemon user";
home = stateDir;
};
users.extraGroups = singleton
{ name = prayerGroup;
gid = config.ids.gids.prayer;
};
jobs.prayer =
{ name = "prayer";
startOn = "startup";
preStart =
''
mkdir -m 0755 -p ${stateDir}
chown ${prayerUser}.${prayerGroup} ${stateDir}
'';
daemonType = "daemon";
exec = "${prayer}/sbin/prayer --config-file=${prayerCfg}";
};
};
}