mfn=MagicMirror

mac=$(uname -s)

if [ $mac == 'Darwin' ]; then

if [ "$(which greadlink)." == "." ]; then

brew install coreutils

fi

cmd=greadlink

else

cmd=readlink

fi

# put the log where the script is located

logdir=$(dirname $($cmd -f "$0"))

# if the script was execute from the web

if [[ $logdir != *"MagicMirror/installers"* ]]; then

# use the MagicMirror/installers folder

cd ~/$mfn/installers >/dev/null

logdir=$(pwd)

cd - >/dev/null

fi

logfile=$logdir/upgrade.log

date +"PM2 Upgrade started - %a %b %e %H:%M:%S %Z %Y" >>$logfile

if [ "$(which pm2)." != "." ]; then

pm2_npmjs_version=$(npm view pm2 version)

pm2_current_version=$(npm list -g --depth=0 | grep -i pm2 | awk -F@ '{print $2}')

echo pm2 installed, checking version $pm2_current_version vs $pm2_npmjs_version >> $logfile

if [ 1 -o "${pm2_npmjs_version:0:1}." == "${pm2_current_version:0:1}." -a "$pm2_current_version." != "$pm2_npmjs_version." ]; then

# if pm2 is managing MagicMirror,, then update

if [ $(pm2 ls -m | grep "\-\-" | grep -i magicmirror | wc -l) -eq 1 ]; then

apps_defined=$(pm2 ls -m | grep "\-\-" | wc -l)

echo pm2 same major version, so updating >> $logfile

sudo npm install pm2@latest -g 2>&1 >> $logfile

pm2 update 2>&1 >>$logfile

rc=$?

if [ $rc -eq 0 ]; then

apps_defined_after_update=$(pm2 ls -m | grep "\-\-" | wc -l)

if [ $apps_defined != $apps_defined_after_update ]; then

echo rerunning pm2 update , after app count incorrect >> $logfile

pm2 update 2>&1 >>$logfile

fi

echo pm2 update completed >> $logfile

else

echo pm2 update failed, rc=$rc | tee -a $logfile

fi

else

echo not managing pm2 >>$logfile

fi

else

echo no pm2 required >>$logfile

fi

fi

date +"PM2 Upgrade ended - %a %b %e %H:%M:%S %Z %Y" >>$logfile