A bunch of fixes for timesave.

- Apply shellcheck issues
        - Make timesave working properly on RPi images

Makefile

@@ -69,7 +69,7 @@ $(OPENWRT_CONFIG_FOLDER):
 	sed 's:DROOPY_USE_USER="yes":DROOPY_USE_USER="no":' -i  $@/piratebox.conf
 	sed 's:DROOPY_CHMOD:#DROOPY_CHMOD:' -i $@/piratebox.conf
 	sed 's:LEASE_FILE_LOCATION=$$PIRATEBOX_FOLDER/tmp/lease.file:LEASE_FILE_LOCATION=/tmp/lease.file:' -i  $@/piratebox.conf
-	sed 's:TIMESAVE_FORMAT="":TIMESAVE_FORMAT="+%C%g%m%d%H%M":' -i $@/piratebox.conf
+	sed 's:TIMESAVE_FORMAT="+%C%g%m%d %H%M":TIMESAVE_FORMAT="+%C%g%m%d%H%M":' -i $@/piratebox.conf
 	sed 's:FIREWALL_FETCH_DNS="yes":FIREWALL_FETCH_DNS="no":' -i $@/firewall.conf
 	sed 's:FIREWALL_FETCH_HTTP="yes":FIREWALL_FETCH_HTTP="no":' -i $@/firewall.conf
 

piratebox/piratebox/bin/timesave.sh

@@ -19,11 +19,11 @@ get_datetime() {
 
 # Strip spaces from datetime
 sanitize_datetime() {
-  echo $1 | sed s/" "/""/g
+  echo "$1" | sed s/" "/""/g
 }
 
 # Print usage if parameters are not provided
-if [ -z $1 ] || [ -z $2 ] ; then
+if [ -z "$1" ] || [ -z "$2" ] ; then
   echo "Set up a crontab entry for regulary saving the time"
   echo "Usage $0 <path to piratebox.conf> <step>"
   echo "    Valid steps are:"
@@ -35,7 +35,7 @@ if [ -z $1 ] || [ -z $2 ] ; then
 fi
 
 # Load configfile
-. $1
+. "$1"
 
 if [ "$2" = "install" ] ; then
   crontab -l > $PIRATEBOX_FOLDER/tmp/crontab 2> /dev/null
@@ -44,9 +44,9 @@ if [ "$2" = "install" ] ; then
   crontab $PIRATEBOX_FOLDER/tmp/crontab
 
   echo "initialize timesave file"
-  touch $TIMESAVE
-  chmod a+rw $TIMESAVE
-  get_datetime > $TIMESAVE
+  touch "$TIMESAVE"
+  chmod a+rw "$TIMESAVE"
+  get_datetime > "$TIMESAVE"
 
   echo "Remember MAY have to cron active..."
   echo "  on OpenWrt run: /etc/init.d/piratebox enable"
@@ -56,14 +56,14 @@ fi
 
 # Save current date-time in a recoverable format
 if [ "$2" = "save" ] ; then
-  if [ -e $TIMESAVE ] ; then
+  if [ -e "$TIMESAVE" ] ; then
     if [ $(sanitize_datetime "$(get_datetime)") -lt $(sanitize_datetime "$(cat $TIMESAVE)") ] ; then
       logger -s "$0: Current date-time is lower then saved one. Not saving!"
       exit 1
     fi
   fi
 
-  get_datetime > $TIMESAVE
+  get_datetime > "$TIMESAVE"
   exit 0
 fi
 

piratebox/piratebox/conf/piratebox.conf

@@ -116,10 +116,8 @@ NODE_CONFIG="$PIRATEBOX_FOLDER/conf/node.conf"
 ## Timesave file for non-RTC devices
 TIMESAVE="$PIRATEBOX_FOLDER/share/timesave_file"
 
-#On non OpenWRT you can use the default output format
-# as an input format. For OpenWrt you need to specify +%C%g%m%d%H%M
-# The content is exchanged during makefile processing and image build
-TIMESAVE_FORMAT=""
+## Format for storing & recovering the date&time
+TIMESAVE_FORMAT="+%C%g%m%d %H%M"
 
 #Start droopy? - Enable upload?
 DROOPY_ENABLED="yes"