117 lines
2.3 KiB
Bash
117 lines
2.3 KiB
Bash
|
#!/bin/bash
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
SERVICE=craftbukkit.service
|
||
|
|
VAR_DIR=/var/opt/craftbukkit
|
||
|
|
WAIT=30
|
||
|
|
VERBOSE=${VERBOSE:-4}
|
||
|
|
|
||
|
|
prereq() {
|
||
|
|
local service=$1
|
||
|
|
if ! systemctl list-units --full --all | grep -Fq "$service"; then
|
||
|
|
printf "%s unit does not exit\n" "$service"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
error_exit() {
|
||
|
|
printf "%s\n" "$1" >&2
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
|
||
|
|
stop_server() {
|
||
|
|
local unit="${1:-$SERVICE}"
|
||
|
|
local attempts="${2:-$WAIT}"
|
||
|
|
|
||
|
|
if ! systemctl -q is-enabled "$unit"; then
|
||
|
|
printf "%s is not enabled, skipping.\n" "$unit"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
if ! systemctl -q is-active "$unit"; then
|
||
|
|
printf "%s is already stopped\n" "$unit"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
systemctl -q stop "$unit"
|
||
|
|
|
||
|
|
while systemctl -q is-active "$unit"; do
|
||
|
|
printf "waiting for %s to stop ... (%s)\n" "$unit" "$attempts"
|
||
|
|
((attempts--))
|
||
|
|
if ((attempts == 0)); then
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
start_server() {
|
||
|
|
local unit="${1:-$SERVICE}"
|
||
|
|
local attempts="${2:-$WAIT}"
|
||
|
|
|
||
|
|
if ! systemctl -q is-enabled "$unit"; then
|
||
|
|
printf "%s is not enabled, skipping.\n" "$unit"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
if systemctl -q is-active "$unit"; then
|
||
|
|
printf "%s is already started\n" "$unit"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
systemctl -q start "$unit"
|
||
|
|
|
||
|
|
while ! systemctl -q is-active "$unit"; do
|
||
|
|
printf "waiting for %s to start ... (%d)\n" "$unit" "$attempts"
|
||
|
|
((attempts--))
|
||
|
|
if ((attempts == 0)); then
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
open_files() {
|
||
|
|
local dir=${1-$VAR_DIR}
|
||
|
|
local attempts="${2:-$WAIT}"
|
||
|
|
|
||
|
|
while (($(lsof +D "$dir" | wc -l) > 0)); do
|
||
|
|
printf "waiting for open files ... (%d)\n" "$attempts"
|
||
|
|
((attempts--))
|
||
|
|
if ((attempts == 0)); then
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
sleep 1
|
||
|
|
done
|
||
|
|
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
main() {
|
||
|
|
|
||
|
|
if [ "$1" == "pre" ]; then
|
||
|
|
if ! stop_server $SERVICE; then
|
||
|
|
error_exit "Failed to stop $SERVICE"
|
||
|
|
fi
|
||
|
|
|
||
|
|
printf "checking for open files\n"
|
||
|
|
|
||
|
|
if ! open_files $VAR_DIR; then
|
||
|
|
error_exit "Open files exist in $VAR_DIR"
|
||
|
|
fi
|
||
|
|
elif [ "$1" == "post" ]; then
|
||
|
|
if ! start_server $SERVICE; then
|
||
|
|
error_exit "Failed to start $SERVICE"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
main "$@"
|