OpenDroneMap-WebODM/worker.sh

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#!/bin/bash
__dirname=$(cd $(dirname "$0"); pwd -P)
cd ${__dirname}
usage(){
echo "Usage: $0 <command>"
echo
echo "This program manages the background worker processes. WebODM requires at least one background process worker to be running at all times."
echo
echo "Command list:"
echo " start Start background worker"
echo " scheduler start Start background worker scheduler"
echo " scheduler stop Stop background worker scheduler"
exit
}
check_command(){
check_msg_prefix="Checking for $1... "
check_msg_result="\033[92m\033[1m OK\033[0m\033[39m"
hash $1 2>/dev/null || not_found=true
if [[ $not_found ]]; then
# Can we attempt to install it?
if [[ ! -z "$3" ]]; then
echo -e "$check_msg_prefix \033[93mnot found, we'll attempt to install\033[39m"
run "$3 || sudo $3"
# Recurse, but don't pass the install command
check_command "$1" "$2"
else
check_msg_result="\033[91m can't find $1! Check that the program is installed and that you have added the proper path to the program to your PATH environment variable before launching WebODM. If you change your PATH environment variable, remember to close and reopen your terminal. $2\033[39m"
fi
fi
echo -e "$check_msg_prefix $check_msg_result"
if [[ $not_found ]]; then
return 1
fi
}
environment_check(){
check_command "celery" "Run \033[1msudo pip install -U celery\033[0m" "pip install -U celery"
if [[ -z "$WO_BROKER" ]]; then
echo -e "\033[91mWO_BROKER environment variable is not set. Defaulting to redis://localhost\033[39m"
export WO_BROKER=redis://localhost
fi
}
start(){
action=$1
echo "Starting worker using broker at $WO_BROKER"
celery -A worker worker --autoscale $(grep -c '^processor' /proc/cpuinfo),2 --max-tasks-per-child 1000 --loglevel=warn > /dev/null
}
start_scheduler(){
stop_scheduler
if [[ ! -f ./celerybeat.pid ]]; then
celery -A worker beat &
else
echo "Scheduler already running (celerybeat.pid exists)."
fi
}
stop_scheduler(){
if [[ -f ./celerybeat.pid ]]; then
kill -9 $(cat ./celerybeat.pid) 2>/dev/null
rm ./celerybeat.pid 2>/dev/null
echo "Scheduler has shutdown."
else
echo "Scheduler is not running."
fi
}
if [[ $1 = "start" ]]; then
environment_check
start
elif [[ $1 = "scheduler" ]]; then
if [[ $2 = "start" ]]; then
environment_check
start_scheduler
elif [[ $2 = "stop" ]]; then
environment_check
stop_scheduler
else
usage
fi
else
usage
fi