Making the dovecot2 mail location a nixos option.

svn path=/nixos/trunk/; revision=34421

modules/services/mail/dovecot2.nix

@@ -25,7 +25,7 @@ let
     + ''
       default_internal_user = ${cfg.user}
 
-      mail_location = maildir:/var/spool/mail/%u
+      mail_location = ${cfg.mailLocation}
 
       maildir_copy_with_hardlinks = yes
 
@@ -76,6 +76,14 @@ in
         description = "Dovecot group name.";
       };
 
+      mailLocation = mkOption {
+        default = "maildir:/var/spool/mail/%u"; /* Same as inbox, as postfix */
+        example = "maildir:~/mail:INBOX=/var/spool/mail/%u";
+        description = ''
+          Location that dovecot will use for mail folders. Dovecot mail_location option.
+        '';
+      };
+
       sslServerCert = mkOption {
         default = "";
         description = "Server certificate";