nixos/services.kresd: remove with lib;

nixos/modules/services/networking/kresd.nix

@@ -1,7 +1,4 @@
 { config, lib, pkgs, ... }:
-
-with lib;
-
 let
   cfg = config.services.kresd;
 
@@ -12,11 +9,11 @@ let
     al_v4 = builtins.match "([0-9.]+):([0-9]+)($)" addr;
     al_v6 = builtins.match "\\[(.+)]:([0-9]+)(%.*|$)" addr;
     al_portOnly = builtins.match "(^)([0-9]+)" addr;
-    al = findFirst (a: a != null)
+    al = lib.findFirst (a: a != null)
       (throw "services.kresd.*: incorrect address specification '${addr}'")
       [ al_v4 al_v6 al_portOnly ];
-    port = elemAt al 1;
-    addrSpec = if al_portOnly == null then "'${head al}${elemAt al 2}'" else "{'::', '0.0.0.0'}";
+    port = lib.elemAt al 1;
+    addrSpec = if al_portOnly == null then "'${lib.head al}${lib.elemAt al 2}'" else "{'::', '0.0.0.0'}";
     in # freebind is set for compatibility with earlier kresd services;
        # it could be configurable, for example.
       ''
@@ -25,30 +22,30 @@ let
 
   configFile = pkgs.writeText "kresd.conf" (
     ""
-    + concatMapStrings (mkListen "dns") cfg.listenPlain
-    + concatMapStrings (mkListen "tls") cfg.listenTLS
-    + concatMapStrings (mkListen "doh2") cfg.listenDoH
+    + lib.concatMapStrings (mkListen "dns") cfg.listenPlain
+    + lib.concatMapStrings (mkListen "tls") cfg.listenTLS
+    + lib.concatMapStrings (mkListen "doh2") cfg.listenDoH
     + cfg.extraConfig
   );
 in {
-  meta.maintainers = [ maintainers.vcunat /* upstream developer */ ];
+  meta.maintainers = [ lib.maintainers.vcunat /* upstream developer */ ];
 
   imports = [
-    (mkChangedOptionModule [ "services" "kresd" "interfaces" ] [ "services" "kresd" "listenPlain" ]
+    (lib.mkChangedOptionModule [ "services" "kresd" "interfaces" ] [ "services" "kresd" "listenPlain" ]
       (config:
-        let value = getAttrFromPath [ "services" "kresd" "interfaces" ] config;
+        let value = lib.getAttrFromPath [ "services" "kresd" "interfaces" ] config;
         in map
-          (iface: if elem ":" (stringToCharacters iface) then "[${iface}]:53" else "${iface}:53") # Syntax depends on being IPv6 or IPv4.
+          (iface: if lib.elem ":" (lib.stringToCharacters iface) then "[${iface}]:53" else "${iface}:53") # Syntax depends on being IPv6 or IPv4.
           value
       )
     )
-    (mkRemovedOptionModule [ "services" "kresd" "cacheDir" ] "Please use (bind-)mounting instead.")
+    (lib.mkRemovedOptionModule [ "services" "kresd" "cacheDir" ] "Please use (bind-)mounting instead.")
   ];
 
   ###### interface
   options.services.kresd = {
-    enable = mkOption {
-      type = types.bool;
+    enable = lib.mkOption {
+      type = lib.types.bool;
       default = false;
       description = ''
         Whether to enable knot-resolver domain name server.
@@ -57,18 +54,18 @@ in {
         and give commands interactively to kresd@1.service.
       '';
     };
-    package = mkPackageOption pkgs "knot-resolver" {
+    package = lib.mkPackageOption pkgs "knot-resolver" {
       example = "knot-resolver.override { extraFeatures = true; }";
     };
-    extraConfig = mkOption {
-      type = types.lines;
+    extraConfig = lib.mkOption {
+      type = lib.types.lines;
       default = "";
       description = ''
         Extra lines to be added verbatim to the generated configuration file.
       '';
     };
-    listenPlain = mkOption {
-      type = with types; listOf str;
+    listenPlain = lib.mkOption {
+      type = with lib.types; listOf str;
       default = [ "[::1]:53" "127.0.0.1:53" ];
       example = [ "53" ];
       description = ''
@@ -76,8 +73,8 @@ in {
         For detailed syntax see ListenStream in {manpage}`systemd.socket(5)`.
       '';
     };
-    listenTLS = mkOption {
-      type = with types; listOf str;
+    listenTLS = lib.mkOption {
+      type = with lib.types; listOf str;
       default = [];
       example = [ "198.51.100.1:853" "[2001:db8::1]:853" "853" ];
       description = ''
@@ -85,8 +82,8 @@ in {
         For detailed syntax see ListenStream in {manpage}`systemd.socket(5)`.
       '';
     };
-    listenDoH = mkOption {
-      type = with types; listOf str;
+    listenDoH = lib.mkOption {
+      type = with lib.types; listOf str;
       default = [];
       example = [ "198.51.100.1:443" "[2001:db8::1]:443" "443" ];
       description = ''
@@ -94,8 +91,8 @@ in {
         For detailed syntax see ListenStream in {manpage}`systemd.socket(5)`.
       '';
     };
-    instances = mkOption {
-      type = types.ints.unsigned;
+    instances = lib.mkOption {
+      type = lib.types.ints.unsigned;
       default = 1;
       description = ''
         The number of instances to start.  They will be called kresd@{1,2,...}.service.
@@ -107,10 +104,10 @@ in {
   };
 
   ###### implementation
-  config = mkIf cfg.enable {
+  config = lib.mkIf cfg.enable {
     environment.etc."knot-resolver/kresd.conf".source = configFile; # not required
 
-    networking.resolvconf.useLocalResolver = mkDefault true;
+    networking.resolvconf.useLocalResolver = lib.mkDefault true;
 
     users.users.knot-resolver =
       { isSystemUser = true;
@@ -124,7 +121,7 @@ in {
     systemd.targets.kresd = { # configure units started by default
       wantedBy = [ "multi-user.target" ];
       wants = [ "kres-cache-gc.service" ]
-        ++ map (i: "kresd@${toString i}.service") (range 1 cfg.instances);
+        ++ map (i: "kresd@${toString i}.service") (lib.range 1 cfg.instances);
     };
     systemd.services."kresd@".serviceConfig = {
       ExecStart = "${cfg.package}/bin/kresd --noninteractive "