V2.67: fix incorrect schedule date at the beginning of month

The date time conversion between UTC and local time may go wrong at the
beginning of month. The “+1 month” may point to March, if you run it on
31th January (because 31th February doesn’t exist).

wittyPi/daemon.sh

@@ -16,7 +16,7 @@ cur_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # utilities
 . "$cur_dir/utilities.sh"
 
-log 'Witty Pi daemon (v2.66) is started.'
+log 'Witty Pi daemon (v2.67) is started.'
 
 # log Raspberry Pi model
 pi_model=$(cat /proc/device-tree/model)

wittyPi/utilities.sh

@@ -160,7 +160,7 @@ get_utc_date_time()
   local datestr=$(date +%Y-)
   local curDate=$(date +%d)
   if [[ "$date" < "$curDate" ]] ; then
-    datestr+=$(date --date="$(date +%m) +1 month" +%m-)
+    datestr+=$(date --date="$(date +%Y-%m-15) +1 month" +%m-)
   else
     datestr+=$(date +%m-)
   fi
@@ -208,7 +208,7 @@ get_local_date_time()
   local datestr=$(date +%Y-)
   local curDate=$(date +%d)
   if [[ "$date" < "$curDate" ]] ; then
-    datestr+=$(date --date="$(date +%m) +1 month" +%m-)
+    datestr+=$(date --date="$(date +%Y-%m-15) +1 month" +%m-)
   else
     datestr+=$(date +%m-)
   fi

wittyPi/wittyPi.sh

@@ -15,7 +15,7 @@ echo '==========================================================================
 echo '|                                                                              |'
 echo '|   Witty Pi - Realtime Clock + Power Management for Raspberry Pi              |'
 echo '|                                                                              |'
-echo '|                   < Version 2.66 >     by UUGear s.r.o.                      |'
+echo '|                   < Version 2.67 >     by UUGear s.r.o.                      |'
 echo '|                                                                              |'
 echo '================================================================================'