diff options
Diffstat (limited to 'nixos/modules/services/printing/cupsd.nix')
| -rw-r--r-- | nixos/modules/services/printing/cupsd.nix | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/nixos/modules/services/printing/cupsd.nix b/nixos/modules/services/printing/cupsd.nix index c4147986439c..dbf18ec1d114 100644 --- a/nixos/modules/services/printing/cupsd.nix +++ b/nixos/modules/services/printing/cupsd.nix @@ -124,6 +124,16 @@ in ''; }; + startWhenNeeded = mkOption { + type = types.bool; + default = false; + description = '' + If set, CUPS is socket-activated; that is, + instead of having it permanently running as a daemon, + systemd will start it on the first incoming connection. + ''; + }; + listenAddresses = mkOption { type = types.listOf types.str; default = [ "localhost:631" ]; @@ -268,7 +278,7 @@ in config = mkIf config.services.printing.enable { - users.extraUsers = singleton + users.users = singleton { name = "cups"; uid = config.ids.uids.cups; group = "lp"; @@ -287,8 +297,13 @@ in systemd.packages = [ cups.out ]; + systemd.sockets.cups = mkIf cfg.startWhenNeeded { + wantedBy = [ "sockets.target" ]; + listenStreams = map (x: replaceStrings ["localhost"] ["127.0.0.1"] (removePrefix "*:" x)) cfg.listenAddresses; + }; + systemd.services.cups = - { wantedBy = [ "multi-user.target" ]; + { wantedBy = optionals (!cfg.startWhenNeeded) [ "multi-user.target" ]; wants = [ "network.target" ]; after = [ "network.target" ]; |