#!/bin/sh

# usage (in run script): checkrespawn command ...

min_time_btween_fails=30
fail_after=7
retry_after=120
file="./supervise/checkrespawn"
statusfile="./supervise/status_my.checkrespawn"


# when manually restarting service,
# don't wait and reset checkrespawn's counter
# supervise will start service immediately
term() {
    > $file
    > $status_file
    exit
}
trap "term" SIGTERM


[[ ! -f $file ]] && touch $file
source $file
now=`date +%s`
cmp=$((last + min_time_btween_fails))

if [ $cmp -gt $now ]
then
    let cnt=cnt+1
    if [ $cnt -ge $fail_after ]; then
	echo "SERVICE: ERROR: Respawning too fast, waiting!"
	for i in `seq $retry_after`; do
	    echo " * Respawning too fast, start delayed: $((retry_after - i + 1)) " > $statusfile
	    sleep 1
	done
        cnt=0
    fi
fi

> $statusfile
echo "last=$now" > $file
echo "cnt=$cnt" >> $file
exec "$@"