nixpkgs/nixos/modules/services/desktops/profile-sync-daemon.nix
Joachim Fasting 230994a30a
psd service: assert that at least one user must be configured
Using the default config, a user will experience a run-time failure.
This is poor UX, assert the requirement up-front.
2016-12-10 20:35:44 +01:00

146 lines
3.7 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.psd;
configFile = ''
${optionalString (cfg.users != [ ]) ''
USERS="${concatStringsSep " " cfg.users}"
''}
${optionalString (cfg.browsers != [ ]) ''
BROWSERS="${concatStringsSep " " cfg.browsers}"
''}
${optionalString (cfg.volatile != "") "VOLATILE=${cfg.volatile}"}
${optionalString (cfg.daemonFile != "") "DAEMON_FILE=${cfg.daemonFile}"}
'';
in {
options.services.psd = with types; {
enable = mkOption {
type = bool;
default = false;
description = ''
Whether to enable the Profile Sync daemon.
'';
};
users = mkOption {
type = listOf str;
default = [ ];
example = [ "demo" ];
description = ''
A list of users whose browser profiles should be sync'd to tmpfs.
'';
};
browsers = mkOption {
type = listOf str;
default = [ ];
example = [ "chromium" "firefox" ];
description = ''
A list of browsers to sync. Available choices are:
chromium chromium-dev conkeror.mozdev.org epiphany firefox
firefox-trunk google-chrome google-chrome-beta google-chrome-unstable
heftig-aurora icecat luakit midori opera opera-developer opera-beta
qupzilla palemoon rekonq seamonkey
An empty list will enable all browsers.
'';
};
resyncTimer = mkOption {
type = str;
default = "1h";
example = "1h 30min";
description = ''
The amount of time to wait before syncing browser profiles back to the
disk.
Takes a systemd.unit time span. The time unit defaults to seconds if
omitted.
'';
};
volatile = mkOption {
type = str;
default = "/run/psd-profiles";
description = ''
The directory where browser profiles should reside(this should be
mounted as a tmpfs). Do not include a trailing backslash.
'';
};
daemonFile = mkOption {
type = str;
default = "/run/psd";
description = ''
Where the pid and backup configuration files will be stored.
'';
};
};
config = mkIf cfg.enable {
assertions = [
{ assertion = cfg.users != [];
message = "services.psd.users must contain at least one user";
}
];
systemd = {
services = {
psd = {
description = "Profile Sync daemon";
wants = [ "psd-resync.service" "local-fs.target" ];
wantedBy = [ "multi-user.target" ];
preStart = "mkdir -p ${cfg.volatile}";
path = with pkgs; [ glibc rsync gawk ];
unitConfig = {
RequiresMountsFor = [ "/home/" ];
};
serviceConfig = {
Type = "oneshot";
RemainAfterExit = "yes";
ExecStart = "${pkgs.profile-sync-daemon}/bin/profile-sync-daemon sync";
ExecStop = "${pkgs.profile-sync-daemon}/bin/profile-sync-daemon unsync";
};
};
psd-resync = {
description = "Timed profile resync";
after = [ "psd.service" ];
wants = [ "psd-resync.timer" ];
partOf = [ "psd.service" ];
path = with pkgs; [ glibc rsync gawk ];
serviceConfig = {
Type = "oneshot";
ExecStart = "${pkgs.profile-sync-daemon}/bin/profile-sync-daemon resync";
};
};
};
timers.psd-resync = {
description = "Timer for profile sync daemon - ${cfg.resyncTimer}";
partOf = [ "psd-resync.service" "psd.service" ];
timerConfig = {
OnUnitActiveSec = "${cfg.resyncTimer}";
};
};
};
environment.etc."psd.conf".text = configFile;
};
}