2017-05-02 19:13:27 +02:00
|
|
|
#!/bin/sh
|
|
|
|
|
|
|
|
TIMEOUT=15
|
|
|
|
QUIET=0
|
|
|
|
|
|
|
|
echoerr() {
|
|
|
|
if [ "$QUIET" -ne 1 ]; then printf "%s\n" "$*" 1>&2; fi
|
|
|
|
}
|
|
|
|
|
|
|
|
usage() {
|
|
|
|
exitcode="$1"
|
|
|
|
cat << USAGE >&2
|
|
|
|
Usage:
|
2020-02-03 16:09:22 +01:00
|
|
|
$0 host:port [-t timeout] [-- command args]
|
2017-05-02 19:13:27 +02:00
|
|
|
-q | --quiet Do not output any status messages
|
|
|
|
-t TIMEOUT | --timeout=timeout Timeout in seconds, zero for no timeout
|
|
|
|
-- COMMAND ARGS Execute command with args after the test finishes
|
|
|
|
USAGE
|
|
|
|
exit "$exitcode"
|
|
|
|
}
|
|
|
|
|
|
|
|
wait_for() {
|
2020-02-03 16:09:22 +01:00
|
|
|
for _ in $(seq $TIMEOUT) ; do
|
2017-05-03 10:52:29 +02:00
|
|
|
nc -z "$HOST" "$PORT" > /dev/null 2>&1
|
2020-02-03 16:08:25 +01:00
|
|
|
|
2017-05-02 19:13:27 +02:00
|
|
|
result=$?
|
|
|
|
if [ $result -eq 0 ] ; then
|
2017-08-25 02:50:42 +02:00
|
|
|
if [ $# -gt 0 ] ; then
|
|
|
|
exec "$@"
|
2017-05-02 19:13:27 +02:00
|
|
|
fi
|
|
|
|
exit 0
|
|
|
|
fi
|
|
|
|
sleep 1
|
|
|
|
done
|
|
|
|
echo "Operation timed out" >&2
|
|
|
|
exit 1
|
|
|
|
}
|
|
|
|
|
|
|
|
while [ $# -gt 0 ]
|
|
|
|
do
|
|
|
|
case "$1" in
|
|
|
|
*:* )
|
|
|
|
HOST=$(printf "%s\n" "$1"| cut -d : -f 1)
|
|
|
|
PORT=$(printf "%s\n" "$1"| cut -d : -f 2)
|
|
|
|
shift 1
|
|
|
|
;;
|
|
|
|
-q | --quiet)
|
|
|
|
QUIET=1
|
|
|
|
shift 1
|
|
|
|
;;
|
|
|
|
-t)
|
|
|
|
TIMEOUT="$2"
|
|
|
|
if [ "$TIMEOUT" = "" ]; then break; fi
|
|
|
|
shift 2
|
|
|
|
;;
|
|
|
|
--timeout=*)
|
|
|
|
TIMEOUT="${1#*=}"
|
|
|
|
shift 1
|
|
|
|
;;
|
|
|
|
--)
|
|
|
|
shift
|
|
|
|
break
|
|
|
|
;;
|
|
|
|
--help)
|
|
|
|
usage 0
|
|
|
|
;;
|
|
|
|
*)
|
|
|
|
echoerr "Unknown argument: $1"
|
|
|
|
usage 1
|
|
|
|
;;
|
|
|
|
esac
|
|
|
|
done
|
|
|
|
|
2020-02-03 16:08:25 +01:00
|
|
|
if ! [ -x "$(command -v nc)" ]; then
|
|
|
|
echoerr "Error: netcat is required for wait-for to run."
|
|
|
|
exit 1
|
|
|
|
fi
|
|
|
|
|
2020-02-03 16:09:22 +01:00
|
|
|
if [ "$HOST" = "" ] || [ "$PORT" = "" ]; then
|
2017-05-02 19:13:27 +02:00
|
|
|
echoerr "Error: you need to provide a host and port to test."
|
|
|
|
usage 2
|
|
|
|
fi
|
|
|
|
|
|
|
|
wait_for "$@"
|