* Move the uid/gid mappings into a module. This allows other modules

to use it through config.ids.{uids,gids} rather than `import
  relative-path/ids.nix'.

svn path=/nixos/branches/modular-nixos/; revision=15796

modules/config/users-groups.nix

@@ -41,7 +41,7 @@ in
 
 ###### implementation
 let
-  ids = import ../../system/ids.nix;
+  ids = config.ids;
 
   # User accounts to be created/updated by NixOS.
   users =

modules/misc/ids.nix

@@ -1,6 +1,32 @@
+# This module defines the global list of uids and gids.  We keep a
+# central list to prevent id collissions.
+
+{config, pkgs, ...}:
+
+let
+
+  options = {
+
+    ids.uids = pkgs.lib.mkOption {
+      description = ''
+        The user IDs used in NixOS.
+      '';
+    };
+
+    ids.gids = pkgs.lib.mkOption {
+      description = ''
+        The group IDs used in NixOS.
+      '';
+    };
+
+  };
+
+in
+  
 {
+  require = options;
 
-  uids = {
+  ids.uids = {
     root = 0;
     nscd = 1;
     sshd = 2;
@@ -25,7 +51,7 @@
     nobody = 65534;
   };
 
-  gids = {
+  ids.gids = {
     root = 0;
     wheel = 1;
     kmem = 2;

modules/module-list.nix

@@ -14,6 +14,7 @@
   ./installer/tools/nixos-checkout.nix
   ./installer/tools/tools.nix
   ./misc/assertions.nix
+  ./misc/ids.nix
   ./misc/locate.nix
   ./programs/bash/bash.nix
   ./programs/info.nix

modules/services/audio/alsa.nix

@@ -34,7 +34,7 @@ let
   # not used (e.g., doesn't own any devices).
   group = {
     name = "audio";
-    gid = (import ../../../system/ids.nix).gids.audio;
+    gid = config.ids.gids.audio;
   };
 
   job = {

modules/services/audio/pulseaudio.nix

@@ -4,8 +4,8 @@
 let
   inherit (pkgs.lib) mkOption mkIf;
 
-  uid = (import ../../../system/ids.nix).uids.pulseaudio;
-  gid = (import ../../../system/ids.nix).gids.pulseaudio;
+  uid = config.ids.uids.pulseaudio;
+  gid = config.ids.gids.pulseaudio;
 
   options = {
     services = {
@@ -36,8 +36,6 @@ in
 
 ###### implementation
 
-# For some reason, PulseAudio wants UID == GID.
-assert uid == gid;
 
 mkIf config.services.pulseaudio.enable {
   require = [
@@ -51,7 +49,8 @@ mkIf config.services.pulseaudio.enable {
   users = {
     extraUsers = [
       { name = "pulse";
-        inherit uid;
+        # For some reason, PulseAudio wants UID == GID.
+        uid = assert uid == gid; uid;
         group = "pulse";
         description = "PulseAudio system-wide daemon";
         home = "/var/run/pulse";

modules/services/hardware/hal.nix

@@ -36,13 +36,13 @@ let
 
   user = {
     name = "haldaemon";
-    uid = (import ../../../system/ids.nix).uids.haldaemon;
+    uid = config.ids.uids.haldaemon;
     description = "HAL daemon user";
   };
 
   group = {
     name = "haldaemon";
-    gid = (import ../../../system/ids.nix).gids.haldaemon;
+    gid = config.ids.gids.haldaemon;
   };
 
   fdi =

modules/services/mail/dovecot.nix

@@ -44,7 +44,6 @@ let
   startingDependency = if config.services.gw6c.enable then "gw6c" else "network-interfaces";
 
   cfg = config.services.dovecot;
-  idList = import ../../../system/ids.nix;
 
   dovecotConf = 
   ''
@@ -112,13 +111,13 @@ mkIf config.services.dovecot.enable {
   users = {
     extraUsers = [{
       name = cfg.user;
-      uid = idList.uids.dovecot;
+      uid = config.ids.uids.dovecot;
       description = "Dovecot user";
       group = cfg.group;
     }];
     extraGroups = [{
       name = cfg.group;
-      gid = idList.gids.dovecot;
+      gid = config.ids.gids.dovecot;
     }];
   };
 

modules/services/mail/postfix.nix

@@ -156,7 +156,6 @@ let
   user = cfg.user;
   group = cfg.group;
   setgidGroup = cfg.setgidGroup;
-  idList = import ../../../system/ids.nix;
 
   optionalString = pkgs.lib.optionalString;
   concatStringsSep = pkgs.lib.concatStringsSep;
@@ -270,17 +269,17 @@ mkIf config.services.postfix.enable {
     extraUsers = [
       { name = user;
         description = "Postfix mail server user";
-        uid = idList.uids.postfix;
+        uid = config.ids.uids.postfix;
         group = group;
       }
     ];
 
     extraGroups = [
       { name = group; 
-        gid = idList.gids.postfix;
+        gid = config.ids.gids.postfix;
       }
       { name = setgidGroup; 
-        gid = idList.gids.postdrop;
+        gid = config.ids.gids.postdrop;
       }
     ];
   };

modules/services/monitoring/nagios/default.nix

@@ -137,7 +137,7 @@ let
 
   user = {
     name = nagiosUser;
-    uid = (import ../../../../system/ids.nix).uids.nagios;
+    uid = config.ids.uids.nagios;
     description = "Nagios monitoring daemon";
     home = nagiosState;
   };

modules/services/monitoring/zabbix-agent.nix

@@ -52,7 +52,7 @@ let
 
   user = {
     name = "zabbix";
-    uid = (import ../../../system/ids.nix).uids.zabbix;
+    uid = config.ids.uids.zabbix;
     description = "Zabbix daemon user";
   };
 

modules/services/monitoring/zabbix-server.nix

@@ -42,7 +42,7 @@ let
 
   user = {
     name = "zabbix";
-    uid = (import ../../../system/ids.nix).uids.zabbix;
+    uid = config.ids.uids.zabbix;
     description = "Zabbix daemon user";
   };
 

modules/services/networking/avahi-daemon.nix

@@ -93,14 +93,14 @@ let
 
   user = {
     name = "avahi";
-    uid = (import ../system/ids.nix).uids.avahi;
+    uid = config.ids.uids.avahi;
     description = "`avahi-daemon' privilege separation user";
     home = "/var/empty";
   };
 
   group = {
     name = "avahi";
-    gid = (import ../system/ids.nix).gids.avahi;
+    gid = config.ids.gids.avahi;
   };
 
   job = {

modules/services/networking/bitlbee.nix

@@ -41,15 +41,13 @@ in
 ###### implementation
 
 let
-  bitlbeeUid = (import ../system/ids.nix).uids.bitlbee;
+  bitlbeeUid = config.ids.uids.bitlbee;
   inherit (config.services.bitlbee) portNumber interface;
 in
 
 mkIf config.services.bitlbee.enable {
 
-  require = [ 
-    options
-  ];
+  require = options;
 
   users = {
     extraUsers = [
@@ -62,32 +60,31 @@ mkIf config.services.bitlbee.enable {
     
     extraGroups = [
       { name = "bitlbee";
-        gid = (import ../system/ids.nix).gids.bitlbee;
+        gid = config.ids.gids.bitlbee;
       }
     ];
   };
 
-  services = {
-    extraJobs = [{
-      name = "bitlbee";
+  services.extraJobs = [{
+    name = "bitlbee";
 
-      job = ''
-    description "BitlBee IRC to other chat networks gateway"
+    job = ''
+      description "BitlBee IRC to other chat networks gateway"
 
-    start on network-interfaces/started
-    stop on network-interfaces/stop
+      start on network-interfaces/started
+      stop on network-interfaces/stop
 
-    start script
-        if ! test -d /var/lib/bitlbee
-        then
-            mkdir -p /var/lib/bitlbee
-        fi
-    end script
+      start script
+          if ! test -d /var/lib/bitlbee
+          then
+              mkdir -p /var/lib/bitlbee
+          fi
+      end script
 
-    respawn ${pkgs.bitlbee}/sbin/bitlbee -F -p ${toString portNumber} \
-            -i ${interface} -u bitlbee
-      '';
-  
-    }];
-  };
+      respawn ${pkgs.bitlbee}/sbin/bitlbee -F -p ${toString portNumber} \
+              -i ${interface} -u bitlbee
+    '';
+  }];
+
+  environment.systemPackages = pkgs.bitlbee;  
 }

modules/services/networking/gnunet.nix

@@ -154,7 +154,7 @@ mkIf config.services.gnunet.enable {
   users = {
     extraUsers = [
       { name = "gnunetd";
-        uid = (import ../system/ids.nix).uids.gnunetd;
+        uid = config.ids.uids.gnunetd;
         description = "GNUnet Daemon User";
         home = "/var/empty";
       }

modules/services/networking/ntpd.nix

@@ -72,7 +72,7 @@ mkIf config.services.ntp.enable {
       
       users = [
         { name = ntpUser;
-          uid = (import ../../../system/ids.nix).uids.ntp;
+          uid = config.ids.uids.ntp;
           description = "NTP daemon user";
           home = stateDir;
         }

modules/services/networking/portmap.nix

@@ -37,8 +37,8 @@ in
 
 ###### implementation
 
-let uid = (import ../../../system/ids.nix).uids.portmap;
-    gid = (import ../../../system/ids.nix).gids.portmap;
+let uid = config.ids.uids.portmap;
+    gid = config.ids.gids.portmap;
 in
 
 mkIf config.services.portmap.enable {

modules/services/networking/ssh/sshd.nix

@@ -85,8 +85,6 @@ let
     
   '';
 
-  sshdUid = (import ../../../../system/ids.nix).uids.sshd;
-
   # !!! is this assertion evaluated anywhere???
   assertion = cfg.permitRootLogin == "yes" ||
        cfg.permitRootLogin == "without-password" ||
@@ -104,7 +102,7 @@ mkIf config.services.sshd.enable {
   users = {
     extraUsers = [
       { name = "sshd";
-        uid = (import ../../../../system/ids.nix).uids.sshd;
+        uid = config.ids.uids.sshd;
         description = "SSH privilege separation user";
         home = "/var/empty";
       }

modules/services/networking/vsftpd.nix

@@ -95,13 +95,13 @@ mkIf config.services.vsftpd.enable {
   users = {
     extraUsers = [
         { name = "vsftpd";
-          uid = (import ../../../system/ids.nix).uids.vsftpd;
+          uid = config.ids.uids.vsftpd;
           description = "VSFTPD user";
           home = "/homeless-shelter";
         }
       ] ++ pkgs.lib.optional anonymousUser
         { name = "ftp";
-          uid = (import ../../../system/ids.nix).uids.ftp;
+          uid = config.ids.uids.ftp;
           group = "ftp";
           description = "Anonymous ftp user";
           home = "/home/ftp";
@@ -109,7 +109,7 @@ mkIf config.services.vsftpd.enable {
 
     extraGroups = [
       { name = "ftp";
-        gid = (import ../../../system/ids.nix).gids.ftp;
+        gid = config.ids.gids.ftp;
       }
     ];
       

modules/services/scheduling/atd.nix

@@ -37,14 +37,14 @@ let
 
   user = {
     name = "atd";
-    uid = (import ../../../system/ids.nix).uids.atd;
+    uid = config.ids.uids.atd;
     description = "atd user";
     home = "/var/empty";
   };
 
   group = {
     name = "atd";
-    gid = (import ../../../system/ids.nix).gids.atd;
+    gid = config.ids.gids.atd;
   };
 
   job = ''

modules/services/system/dbus.nix

@@ -55,7 +55,7 @@ let
 
   user = {
     name = "messagebus";
-    uid = (import ../../../system/ids.nix).uids.messagebus;
+    uid = config.ids.uids.messagebus;
     description = "D-Bus system message bus daemon user";
     home = homeDir;
   };

modules/services/system/nscd.nix

@@ -13,7 +13,7 @@ in
         
         users = [
           { name = "nscd";
-            uid = (import ../../../system/ids.nix).uids.nscd;
+            uid = config.ids.uids.nscd;
             description = "Name service cache daemon user";
           }
         ];

modules/services/web-servers/tomcat.nix

@@ -73,13 +73,13 @@ mkIf config.services.tomcat.enable {
       
       groups = [
         { name = "tomcat";
-          gid = (import ../../../system/ids.nix).gids.tomcat;
+          gid = config.ids.gids.tomcat;
         }
       ];
       
       users = [
         { name = "tomcat";
-          uid = (import ../../../system/ids.nix).uids.tomcat;
+          uid = config.ids.uids.tomcat;
           description = "Tomcat user";
           home = "/homeless-shelter";
         }