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watch-app.sh
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#!/bin/bash
ver="7.00"
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" # get cur dir of this script
progName=$(basename -- "$0")
cd $DIR
echo "$progName $ver written by Claude Pageau"
#==================================
# watch-app.sh User Settings
#==================================
watch_config_on=false # true= Remotely Manage Files from Remote Storage false=off
watch_app_on=false # true= Monitor watch_app_fname and attempt restart false=off
watch_reboot_on=false # true= Reboot RPI If watch_app_fname Down false=0ff
watch_app_fname="speed-cam.py" # Filename of Program to Monitor for Run Status
rclone_name="gdmedia" # Name you gave remote storage service
sync_dir="speedcam-config-sync" # Name of folder to manage when watch_config_on=true
# List of file names to monitor for updates
sync_files=("config.py" "speed-cam.py" "rclone-security-sync-recent.sh" \
"search-config.py" "reboot.force" "remote-run.sh")
# Note: It is not recommended to set reboot.force and remote-run.sh at same time
#====== End User Setting Edits ======
fList=""
for fname in "${sync_files[@]}" ; do
fList=$fList' '$fname
done
# Display watch-app Settings
echo "--------------- SETTINGS -----------------
watch_config_on : $watch_config_on # manage config true=on false=off
watch_app_on : $watch_app_on # restart true=on false=off
watch_reboot_on : $watch_reboot_on # reboot true=on false=off
watch_app_fname : $watch_app_fname
rclone_name : $rclone_name # Name you gave remote storage service
sync_dir : $sync_dir # Will be created if does not exist
sync_files :$fList
------------------------------------------"
progDir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" # folder location of this script
cd $progDir
# ------------------------------------------------------
function do_watch_restart ()
{
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
if ! [ -z "$( pgrep -f $watch_app_fname )" ]; then
progPID=$( pgrep -f "$watch_app_fname" )
echo "$now INFO : Stop $watch_app_fname PID $progPID"
sudo kill $progPID >/dev/null 2>&1
sleep 1
fi
# restart the app
./$watch_app_fname >/dev/null 2>&1 &
sleep 1
if [ -z "$(pgrep -f $watch_app_fname)" ] ; then
# pi-timolo did not start
echo "$now INFO : Restart Failed $watch_app_fname"
else
progPID=$( pgrep -f $watch_app_fname )
echo "$now INFO : Restart OK $watch_app_fname PID $progPID"
fi
}
# ------------------------------------------------------
function do_remote_config ()
{
found_update=false
reboot_on=false
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
if [ ! -d $sync_dir ] ; then # If local sync dir does not exist then create one
echo "$now INFO : Create New Dir $sync_dir"
mkdir $sync_dir
for fname in "${sync_files[@]}" ; do
if [[ "$fname" == "reboot.force" ]]; then
# initialize reboot.force.done file
echo "$now INFO : Creating $sync_dir/$fname.log Entry"
echo "$progName written by Claude Pageau
=========================================================
To Force RPI Reboot. Rename this File to reboot.force
On the remote storage name $rclone_name:
================ Reboot History =========================
$now $sync_dir/$fname.log History File Initialized." > $sync_dir/$fname.log
else
if [ -f $fname ] ; then
echo "$now INFO : Copy $fname to $sync_dir"
cp $fname $sync_dir/$fname.orig
cp $fname $sync_dir/$fname.done
else
echo "$now WARN : $fname File Not Found"
fi
fi
done
# sync new sync_dir files to remote storage
/usr/bin/rclone sync -v $sync_dir $rclone_name:$sync_dir # sync to remote storage drive
if [ ! $? -eq 0 ]; then
/usr/bin/rclone sync -v --log-file watch-app-err.log $sync_dir $rclone_name:$sync_dir
echo "$now EPROR - Problem with rclone. Check rclone_name $rclone_name"
fi
else
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
echo "$now INFO : Found Local Dir $sync_dir"
# Update local sync_dir from remote
echo "$now INFO : rclone sync -v $rclone_name:$sync_dir $sync_dir"
/usr/bin/rclone sync -v $rclone_name:$sync_dir $sync_dir # sync remote with local sync dir
if [ ! $? -eq 0 ]; then # Try to fix problem if local dir or some other error occurred
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
echo "$now INFO : rclone sync -v $sync_dir $rclone_name:$sync_dir"
/usr/bin/rclone sync $sync_dir $rclone_name:$sync_dir # sync to remote storage drive
/usr/bin/rclone sync -v $rclone_name:$sync_dir $sync_dir # sync remote with local sync dir
if [ ! $? -eq 0 ]; then # Create an error log of problem until next update cycle works.
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
/usr/bin/rclone sync -v --log-file watch-app-err.log $rclone_name:$sync_dir $sync_dir
echo "$now ERROR : Problem with rclone. Check rclone_name $rclone_name"
fi
fi
# Process sync_files list to see if anything is on list
for fname in "${sync_files[@]}" ; do # check if new config files are present
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
if [[ "${fname}" == "reboot.force" ]]; then
if [[ -f $sync_dir/$fname ]] ; then
found_update=true
reboot_on=true
echo "$now INFO : Found $fname. Reboot Scheduled."
echo "$now INFO : Found $fname. Reboot Scheduled." >> $sync_dir/$fname
cp $sync_dir/$fname $sync_dir/$fname.log
rm $sync_dir/$fname
fi
elif [[ "${fname}" == "remote-run.sh" ]]; then
echo "$now INFO : Found $fname entry in sync_files"
if [ -f $sync_dir/$fname ] ; then
echo "$now INFO : Found $sync_dir/$fname"
if [ -f $fname ] ; then
echo "$now INFO : Check if $fname Already Running"
found_update=true
if [ -z "$( pgrep -f $fname )" ] ; then
echo "$now INFO : $fname is Not Running"
else
progPID=$( pgrep -f "$fname" )
echo "$now WARN : Stop $fname PID $progPID"
echo "$now WARN : Stop $fname PID $progPID" >> $sync_dir/$fname.log
sudo kill $progPID >/dev/null 2>&1
fi
cp $fname $sync_dir/$fname.prev
cp $sync_dir/$fname $fname # update working file
cp $fname $sync_dir/$fname.done
rm $sync_dir/$fname
echo "$now INFO : Run $fname as Background Task"
echo "$now INFO : Run $fname as Background Task" >> $sync_dir/$fname.log
./$fname >> $sync_dir/$fname.log &
else
echo "$now WARN : Run Failed. $fname File Not Found."
echo "$now WARN : Run Failed. $fname File Not Found." >> $sync_dir/$fname.log
fi
else
echo "$now WARN : $sync_dir/$fname File Not Found."
echo "$now WARN : $sync_dir/$fname File Not Found." >> $sync_dir/$fname.log
fi
elif [[ "${fname}" == "watch-app-err.log" ]]; then
if [ -f $fname ] ; then
echo "$now INFO : Found $fname"
found_update=true
cp $fname $sync_dir/
rm $fname
fi
elif [ -f $sync_dir/$fname ] ; then
found_update=true
change_files+=("$fname")
echo "$now INFO : Found Update for File $fname"
cp $fname $sync_dir/$fname.prev # save copy with .prev extension
echo "$now INFO : Copy $sync_dir/$fname to $fname"
cp $sync_dir/$fname $fname # update working file
fi
done
# echo "$now INFO : Changed Files ${change_files[*]}"
if $found_update ; then
echo "$now INFO : Found Changes. Restarting $watch_app_fname"
do_watch_restart
if [ -z "$(pgrep -f $watch_app_fname)" ] ; then
# Roll back changes since pi-timolo did not start
for fname in "${$change_files[@]}" ; do
if [ -f $sync_dir/$fname ] ; then
echo "$now WARN : Undo Update Copy $fname to $sync_dir/$fname.err"
cp $fname $sync_dir/$fname.bad
cp $sync_dir/$fname.prev $fname
rm $sync_dir/$fname
fi
done
change_files=()
do_watch_restart
fi
for fname in "${change_files[@]}" ; do
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
if [ -f $sync_dir/$fname ] ; then
echo "$now INFO : Confirm Update Copy $fname to $sync_dir/$fname.done"
cp $fname $sync_dir/$fname.done
rm $sync_dir/$fname
fi
done
# update remote storage with status
echo "$now INFO : rclone sync -v $sync_dir $rclone_name:$sync_dir"
/usr/bin/rclone sync -v $sync_dir $rclone_name:$sync_dir
else
echo "$now INFO : No File Changes Found in $sync_dir"
fi
if $reboot_on ; then # Reboot after all the other updates done
echo "Found File reboot.force in $sync_dir"
echo " Reboot in 15 seconds Waiting ...."
echo " ctrl-c to Abort Reboot."
sleep 10
echo " Rebooting in 5 seconds"
sleep 5
sudo reboot
fi
fi
}
# ------------------------------------------------------
function do_watch_app()
{
if [ -z "$( pgrep -f $watch_app_fname )" ]; then
do_watch_restart
else
progPID=$( pgrep -f $watch_app_fname )
echo "$now INFO : $watch_app_fname is Running PID $progPID"
fi
}
# ------------------------------------------------------
function do_watch_reboot ()
{
if [ -z "$(pgrep -f $watch_app_fname)" ] ; then
if $watch_reboot_on ; then
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
echo "$now INFO : $watch_app_fname is NOT Running so reboot"
echo "$now INFO : Reboot in 15 seconds Waiting ...."
echo " ctrl-c to Abort Reboot."
sleep 10
echo "$now INFO : Rebooting in 5 seconds"
sleep 5
sudo reboot
fi
else
APP_PID=$(pgrep -f $watch_app_fname)
echo "$now INFO : $watch_app_fname is Running PID $APP_PID"
fi
}
# ------------------------------------------------------
# Main script processing
now=$(/bin/date +%Y-%m-%d-%H:%M:%S)
if pidof -o %PPID -x "$progName"; then
echo "$now WARN : $progName Already Running. Only One Allowed."
else
reboot_on=false # If a reboot file is found in $sync_dir then set to true
if $watch_app_on ; then # Restart app if not running
echo "$now INFO : Watch App is On per watch_app_on=$watch_app_on"
do_watch_app
else
echo "$now WARN : Watch App is Off per watch_app_on=$watch_app_on"
fi
if $watch_config_on ; then # Check if remote configuration feature is on
echo "$now INFO : Remote Configuration is On per watch_config_on=$watch_config_on"
if [ -f /usr/bin/rclone ]; then
echo " List Remote Names"
echo "==================="
/usr/bin/rclone listremotes
echo "==================="
do_remote_config
else
echo "$now ERROR : /usr/bin/rclone File Not Found. Please Investigate."
fi
else
echo "$now WARN : Remote Configuration is Off per watch_config_on=$watch_config_on"
fi
if $watch_reboot_on ; then # check if watch app feature is on
echo "$now INFO : Watch Reboot is On per watch_reboot_on=$watch_reboot_on"
do_watch_reboot
else
echo "$now WARN : Watch Reboot is Off per watch_reboot_on=$watch_reboot_on"
fi
if [ -f "watch-app-new.sh" ] ; then
echo "$now WARN : Found Newer Version of watch-app.sh"
echo "------------------------------------------
Check If You Already Have New Version. To Upgrade if Required.
1 nano watch-app-new.sh
2 Edit settings to transfer any customization from existing watch-app.sh
3 cp watch-app.sh watch-app-old.sh
4 rm watch-app.sh
5 mv watch-app-new.sh watch-app.sh
6 Test changes"
fi
fi
echo "------------------------------------------
$progName Done ..."
exit