113 lines
2.2 KiB
Nix
113 lines
2.2 KiB
Nix
# D-Bus system-wide daemon.
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{pkgs, config, ...}:
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###### interface
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let
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inherit (pkgs.lib) mkOption;
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options = {
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services = {
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dbus = {
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enable = mkOption {
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default = true;
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description = "
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Whether to start the D-Bus message bus daemon. It is required
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by the HAL service.
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";
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merge = pkgs.lib.mergeEnableOption;
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};
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services = mkOption {
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default = [];
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description = ".. fill me ..";
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};
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};
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};
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};
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in
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###### implementation
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let
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cfg = config.services.dbus;
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services = cfg.services;
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inherit (pkgs.lib) mkIf;
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inherit (pkgs) stdenv dbus;
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homeDir = "/var/run/dbus";
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# Take the standard system configuration file, except that we don't
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# want to fork (Upstart will monitor the daemon).
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configFile = stdenv.mkDerivation {
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name = "dbus-conf";
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buildCommand = "
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ensureDir $out
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substitute ${dbus}/etc/dbus-1/system.conf $out/system.conf \\
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--replace '<fork/>' ''
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ensureDir $out/system.d
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for i in ${toString services}; do
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ln -s $i/etc/dbus-1/system.d/* $out/system.d/
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done
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";
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};
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user = {
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name = "messagebus";
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uid = (import ../system/ids.nix).uids.messagebus;
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description = "D-Bus system message bus daemon user";
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home = homeDir;
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};
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job = {
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name = "dbus";
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job = ''
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description "D-Bus system message bus daemon"
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start on startup
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stop on shutdown
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start script
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mkdir -m 0755 -p ${homeDir}
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chown messagebus ${homeDir}
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mkdir -m 0755 -p /var/lib/dbus
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${dbus.tools}/bin/dbus-uuidgen --ensure
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end script
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respawn
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script
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rm -f ${homeDir}/pid
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exec ${dbus}/bin/dbus-daemon --config-file=${configFile}/system.conf
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end script
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'';
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};
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in
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mkIf cfg.enable {
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require = [
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(import ../upstart-jobs/default.nix) # config.services.extraJobs
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# (import ../system/user.nix) # users.*
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# (import ?) # config.environment.extraPackages
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options
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];
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environment = {
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extraPackages = [dbus.daemon dbus.tools];
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};
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users = {
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extraUsers = [user];
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};
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services = {
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extraJobs = [job];
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};
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}
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