create the plugdev group in postinst, not config

packaging/debian/solaar.config

@@ -18,21 +18,25 @@ plugdev_group_exists() {
 }
 
 
-# if not reconfiguring, and the right daemons are running,
-# no reason to do anything
+# During normal installation/upgrade, try to avoid bothering the user
+# if the current settings are sane.
 if test -z "$DEBCONF_RECONFIGURE"; then
 	consolekit_running && exit 0
 	systemd_running && exit 0
+
+	if db_get solaar/use_plugdev_group; then
+		test "$RET" = true && plugdev_group_exists && exit 0
+	else
+		# If the group already exists, just use it.
+		plugdev_group_exists && db_set solaar/use_plugdev_group true && exit 0
+	fi
 fi
 
-# if the package hasn't been configured yet, and no seat daemon is running,
-# change the default
+# If the package hasn't been configured yet, and no seat daemon is running,
+# change the default.
 if ! db_get solaar/use_plugdev_group; then
 	if ! consolekit_running && ! systemd_running; then
 		plugdev_group_exists && db_set solaar/use_plugdev_group true
-		# if not reconfiguring, we have the right group and the right setting
-		# no need to ask anything
-		test -z "$DEBCONF_RECONFIGURE" && exit 0
 	fi
 fi
 
@@ -45,18 +49,7 @@ else
 	db_subst solaar/use_plugdev_group SEAT_DAEMON_STATUS "NEITHER"
 fi
 # ask the question
-db_input high solaar/use_plugdev_group
-db_go
-
-db_get solaar/use_plugdev_group
-if test "$RET" = true; then
-	# make sure the group exists
-	if ! plugdev_group_exists; then
-		groupadd --system plugdev || addgroup --system plugdev
-	fi
-	# reminder about plugdev membership
-	db_input high solaar/plugdev_membership
-	db_go
-fi
+db_input high solaar/use_plugdev_group || true
+db_go || true
 
 exit 0

packaging/debian/solaar.postinst

@@ -0,0 +1,13 @@
+#!/bin/sh
+set -e
+
+. /usr/share/debconf/confmodule
+db_get solaar/use_plugdev_group
+if test "$RET" = true; then
+	# make sure the group exists if required
+	if ! getent group plugdev >/dev/null; then
+		groupadd --system plugdev || addgroup --system plugdev
+	fi
+fi
+
+#DEBHELPER#

packaging/debian/solaar.templates

@@ -1,7 +1,7 @@
 Template: solaar/use_plugdev_group
 Type: boolean
 Default: false
-Description: Use plugdev group?
+_Description: Use plugdev group?
  By default, the Logitech receiver devices are only accessible by the root user.
  .
  To allow access to regular users (through solaar), the needed ACLs can be
@@ -10,18 +10,12 @@ Description: Use plugdev group?
  Right now, ${SEAT_DAEMON_STATUS} daemon is running.
  .
  If neither of these daemons is installed on your system, or you want to make
- the receiver accessible to ssh users, members of the 'plugdev' system group
- can be given access to the receiver devices.
-
-Template: solaar/plugdev_membership
-Type: note
-Description:
- Don't forget to make sure all your desktop users are members of the plugdev
- system group.
- .
- You can add new members to the group by running, as root:
+ the receiver accessible to ssh logged-in through ssh, members of the 'plugdev'
+ system group can be given access to the receiver devices.
  .
+ If you do use the 'plugdev' group, don't forget to make sure all your desktop
+ users are members of the plugdev system group. You can add new members to the
+ group by running, as root:
      gpasswd --add <username> plugdev
- .
  For the group membership to take effect, the affected users have to log-out
  and log-in again.