ffac-ssid-changer: strip trailing whitespaces (#45)

Co-authored-by: Grische <10663446-grische@users.noreply.gitlab.com>

ffac-ssid-changer/README.md

@@ -41,7 +41,7 @@ Adapt and add this block to your `site.conf`:
 
     ssid_changer = {
       enabled = true,
-      switch_timeframe = 30,    -- only once every timeframe (in minutes) the SSID will change to the Offline-SSID 
+      switch_timeframe = 30,    -- only once every timeframe (in minutes) the SSID will change to the Offline-SSID
                                 -- set to 1440 to change once a day
                                 -- set to 1 minute to change every time the router gets offline
       first = 5,                -- the first few minutes directly after reboot within which an Offline-SSID may be
@@ -102,4 +102,4 @@ Some SSID changers are in use in:
 -   Freifunk Vogtland
 -   [Freifunk Berlin](https://github.com/freifunk-berlin/falter-packages/tree/master/packages/falter-berlin-ssid-changer)
 -   [Freifunk Stuttgart](https://gitlab.freifunk-stuttgart.de/firmware/gluon-packages.git)
--   [Freifunk Altdorf](https://github.com/tecff/gluon-packages/tree/main/tecff-ssid-changer)
+-   [Freifunk Altdorf](https://github.com/tecff/gluon-packages/tree/main/tecff-ssid-changer)

ffac-ssid-changer/shsrc/ssid-changer.sh

@@ -30,7 +30,7 @@ PREFIX="$(uci -q get ssid-changer.settings.prefix)"
 PREFIX_OWE="$(uci -q get ssid-changer.settings.prefix_owe)"
 : ${PREFIX_OWE:='FF_Off_OWE'}
 
-if [ "$(uci -q get ssid-changer.settings.enabled)" = '0' ]; then 
+if [ "$(uci -q get ssid-changer.settings.enabled)" = '0' ]; then
 	DISABLED='1'
 else
 	DISABLED='0'
@@ -122,7 +122,7 @@ if [ "$CHECK" -gt 0 ] || [ "$DISABLED" = '1' ]; then
 	LOOP=1
 	# check status for all physical devices
 	for HOSTAPD in $(ls /var/run/hostapd-phy*); do
-		ONLINE_SSID="$(echo $ONLINE_SSIDs | awk -F '~' -v l=$((LOOP*2)) '{print $l}')" 
+		ONLINE_SSID="$(echo $ONLINE_SSIDs | awk -F '~' -v l=$((LOOP*2)) '{print $l}')"
 		LOOP=$((LOOP+1))
 		CURRENT_SSID="$(grep "^ssid=$ONLINE_SSID" $HOSTAPD | cut -d"=" -f2)"
 		if [ "$CURRENT_SSID" = "$ONLINE_SSID" ]; then
@@ -156,17 +156,17 @@ elif [ "$CHECK" -eq 0 ]; then
 	echo "node is considered offline"
 	if [ $UP -lt $FIRST ] || [ $M -eq 0 ]; then
 		# set SSID offline, only if uptime is less than FIRST or exactly a multiplicative of switch_timeframe
-		if [ $UP -lt $FIRST ]; then 
+		if [ $UP -lt $FIRST ]; then
 			T=$FIRST
 		else
 			T=$MINUTES
 		fi
-		#echo minute $M, check if $OFF_COUNT is more than half of $T 
+		#echo minute $M, check if $OFF_COUNT is more than half of $T
 		if [ $OFF_COUNT -ge $(($T / 2)) ]; then
 			# node was offline more times than half of switch_timeframe (or than $FIRST)
 			LOOP=1
 			for HOSTAPD in $(ls /var/run/hostapd-phy*); do
-				ONLINE_SSID="$(echo $ONLINE_SSIDs | awk -F '~' -v l=$((LOOP*2)) '{print $l}')" 
+				ONLINE_SSID="$(echo $ONLINE_SSIDs | awk -F '~' -v l=$((LOOP*2)) '{print $l}')"
 				LOOP=$((LOOP+1))
 				CURRENT_SSID="$(grep "^ssid=$OFFLINE_SSID" $HOSTAPD | cut -d"=" -f2)"
 				if [ "$CURRENT_SSID" = "$OFFLINE_SSID" ]; then
@@ -203,8 +203,8 @@ fi
 if [ $HUP_NEEDED = 1 ]; then
 	# send HUP to all hostapd to load the new SSID
 	killall -HUP hostapd
-	## check for nonmachting hotapd-pidfiles 
-	if [ -f /lib/gluon/eulenfunk-hotfix/check_hostapd.sh ] ; then 
+	## check for nonmachting hotapd-pidfiles
+	if [ -f /lib/gluon/eulenfunk-hotfix/check_hostapd.sh ] ; then
 	   sleep 2 # settle down
 	   ps|grep hostapd|grep .pid|xargs -n 10 /lib/gluon/eulenfunk-hotfix/check_hostapd.sh
 	fi