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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.motion;
cameraConfig = {
options = {
configFiles = mkOption {
type = types.listOf types.path;
default = [];
description = "Config files to append to camera config";
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Config to append verbatim";
};
};
};
cameraConfig' = cameraId: cCfg: pkgs.writeText "${toString cameraId}.conf" ''
camera_id ${toString cameraId}
${cCfg.extraConfig}
'';
compileCamera = cameraId: cCfg: ''
cat ${cameraConfig' cameraId cCfg} ${escapeShellArgs cCfg.configFiles} > cameras/${toString cameraId}.conf
'';
motionConfig = pkgs.writeText "motion.conf" ''
${cfg.extraConfig}
camera_dir cameras
'';
preStart = pkgs.writeScript "motion-pre-start" ''
#!${pkgs.stdenv.shell}
cat ${motionConfig} ${escapeShellArgs cfg.configFiles} > motion.conf
mkdir -p cameras
${concatStringsSep "\n" (imap0 compileCamera cfg.cameras)}
chown -R ${cfg.user.name} .
chmod -R u+rX .
'';
in {
options = {
services.motion = {
cameras = mkOption{
type = types.listOf (types.submodule cameraConfig);
default = [];
};
extraConfig = mkOption {
type = types.lines;
default = "";
description = "Config to append verbatim";
};
configFiles = mkOption {
type = types.listOf types.path;
default = [];
description = "Config files to append to service config";
};
user = {
name = mkOption {
type = types.str;
default = "motion";
description = "Name of the dedicated user";
};
overrides = mkOption {
type = types.attrs;
default = {};
};
};
};
};
config = mkIf (cfg.cameras != []) {
users.users."${cfg.user.name}" = {
name = cfg.user.name;
isSystemUser = true;
isNormalUser = false;
description = "User for motion daemon";
} // cfg.user.overrides;
systemd.services."motion" = {
serviceConfig = {
User = cfg.user.name;
RuntimeDirectory = [ "motion" ];
RuntimeDirectoryMode = "0700";
WorkingDirectory = "/run/motion";
ExecStart = "${pkgs.motion}/bin/motion -n -c motion.conf";
ExecStartPre = "+${preStart}";
StandardError = "null";
};
wantedBy = [ "multi-user.target" ];
};
};
}
|
