nixpkgs/upstart-jobs/dbus.nix

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{stdenv, dbus}:
let
homeDir = "/var/run/dbus";
# Take the standard system configuration file, except that we don't
# want to fork (Upstart will monitor the daemon).
configFile = stdenv.mkDerivation {
name = "dbus-conf";
buildCommand = "
ensureDir $out
ensureDir $out/system.d
substitute ${dbus}/etc/dbus-1/system.conf $out/system.conf \\
--replace '<fork/>' ''
";
};
in
{
name = "dbus";
users = [
{ name = "messagebus";
uid = (import ../system/ids.nix).uids.messagebus;
description = "D-Bus system message bus daemon user";
home = homeDir;
}
];
job = "
description \"D-Bus system message bus daemon\"
start on startup
stop on shutdown
start script
mkdir -m 0755 -p ${homeDir}
chown messagebus ${homeDir}
mkdir -m 0755 -p /var/lib/dbus
${dbus}/bin/dbus-uuidgen --ensure
end script
respawn
script
rm -f ${homeDir}/pid
exec ${dbus}/bin/dbus-daemon --config-file=${configFile}/system.conf
end script
";
}