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@@ -1,182 +0,0 @@
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-#!/usr/bin/env bash
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-# Use this script to test if a given TCP host/port are available
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-
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-WAITFORIT_cmdname=${0##*/}
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-
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-echoerr() { if [[ $WAITFORIT_QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
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-
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-usage()
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-{
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- cat << USAGE >&2
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-Usage:
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- $WAITFORIT_cmdname host:port [-s] [-t timeout] [-- command args]
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- -h HOST | --host=HOST Host or IP under test
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- -p PORT | --port=PORT TCP port under test
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- Alternatively, you specify the host and port as host:port
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- -s | --strict Only execute subcommand if the test succeeds
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- -q | --quiet Don't output any status messages
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- -t TIMEOUT | --timeout=TIMEOUT
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- Timeout in seconds, zero for no timeout
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- -- COMMAND ARGS Execute command with args after the test finishes
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-USAGE
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- exit 1
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-}
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-
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-wait_for()
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-{
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- if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
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- echoerr "$WAITFORIT_cmdname: waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
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- else
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- echoerr "$WAITFORIT_cmdname: waiting for $WAITFORIT_HOST:$WAITFORIT_PORT without a timeout"
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- fi
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- WAITFORIT_start_ts=$(date +%s)
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- while :
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- do
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- if [[ $WAITFORIT_ISBUSY -eq 1 ]]; then
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- nc -z $WAITFORIT_HOST $WAITFORIT_PORT
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- WAITFORIT_result=$?
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- else
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- (echo -n > /dev/tcp/$WAITFORIT_HOST/$WAITFORIT_PORT) >/dev/null 2>&1
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- WAITFORIT_result=$?
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- fi
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- if [[ $WAITFORIT_result -eq 0 ]]; then
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- WAITFORIT_end_ts=$(date +%s)
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- echoerr "$WAITFORIT_cmdname: $WAITFORIT_HOST:$WAITFORIT_PORT is available after $((WAITFORIT_end_ts - WAITFORIT_start_ts)) seconds"
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- break
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- fi
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- sleep 1
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- done
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- return $WAITFORIT_result
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-}
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-
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-wait_for_wrapper()
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-{
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- # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
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- if [[ $WAITFORIT_QUIET -eq 1 ]]; then
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- timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --quiet --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
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- else
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- timeout $WAITFORIT_BUSYTIMEFLAG $WAITFORIT_TIMEOUT $0 --child --host=$WAITFORIT_HOST --port=$WAITFORIT_PORT --timeout=$WAITFORIT_TIMEOUT &
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- fi
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- WAITFORIT_PID=$!
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- trap "kill -INT -$WAITFORIT_PID" INT
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- wait $WAITFORIT_PID
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- WAITFORIT_RESULT=$?
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- if [[ $WAITFORIT_RESULT -ne 0 ]]; then
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- echoerr "$WAITFORIT_cmdname: timeout occurred after waiting $WAITFORIT_TIMEOUT seconds for $WAITFORIT_HOST:$WAITFORIT_PORT"
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- fi
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- return $WAITFORIT_RESULT
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-}
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-
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-# process arguments
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-while [[ $# -gt 0 ]]
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-do
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- case "$1" in
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- *:* )
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- WAITFORIT_hostport=(${1//:/ })
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- WAITFORIT_HOST=${WAITFORIT_hostport[0]}
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- WAITFORIT_PORT=${WAITFORIT_hostport[1]}
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- shift 1
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- ;;
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- --child)
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- WAITFORIT_CHILD=1
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- shift 1
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- ;;
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- -q | --quiet)
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- WAITFORIT_QUIET=1
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- shift 1
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- ;;
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- -s | --strict)
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- WAITFORIT_STRICT=1
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- shift 1
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- ;;
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- -h)
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- WAITFORIT_HOST="$2"
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- if [[ $WAITFORIT_HOST == "" ]]; then break; fi
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- shift 2
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- ;;
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- --host=*)
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- WAITFORIT_HOST="${1#*=}"
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- shift 1
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- ;;
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- -p)
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- WAITFORIT_PORT="$2"
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- if [[ $WAITFORIT_PORT == "" ]]; then break; fi
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- shift 2
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- ;;
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- --port=*)
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- WAITFORIT_PORT="${1#*=}"
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- shift 1
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- ;;
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- -t)
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- WAITFORIT_TIMEOUT="$2"
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- if [[ $WAITFORIT_TIMEOUT == "" ]]; then break; fi
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- shift 2
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- ;;
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- --timeout=*)
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- WAITFORIT_TIMEOUT="${1#*=}"
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- shift 1
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- ;;
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- --)
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- shift
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- WAITFORIT_CLI=("$@")
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- break
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- ;;
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- --help)
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- usage
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- ;;
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- *)
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- echoerr "Unknown argument: $1"
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- usage
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- ;;
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- esac
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-done
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-
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-if [[ "$WAITFORIT_HOST" == "" || "$WAITFORIT_PORT" == "" ]]; then
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- echoerr "Error: you need to provide a host and port to test."
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- usage
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-fi
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-
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-WAITFORIT_TIMEOUT=${WAITFORIT_TIMEOUT:-15}
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-WAITFORIT_STRICT=${WAITFORIT_STRICT:-0}
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-WAITFORIT_CHILD=${WAITFORIT_CHILD:-0}
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-WAITFORIT_QUIET=${WAITFORIT_QUIET:-0}
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-
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-# Check to see if timeout is from busybox?
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-WAITFORIT_TIMEOUT_PATH=$(type -p timeout)
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-WAITFORIT_TIMEOUT_PATH=$(realpath $WAITFORIT_TIMEOUT_PATH 2>/dev/null || readlink -f $WAITFORIT_TIMEOUT_PATH)
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-
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-WAITFORIT_BUSYTIMEFLAG=""
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-if [[ $WAITFORIT_TIMEOUT_PATH =~ "busybox" ]]; then
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- WAITFORIT_ISBUSY=1
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- # Check if busybox timeout uses -t flag
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- # (recent Alpine versions don't support -t anymore)
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- if timeout &>/dev/stdout | grep -q -e '-t '; then
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- WAITFORIT_BUSYTIMEFLAG="-t"
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- fi
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-else
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- WAITFORIT_ISBUSY=0
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-fi
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-
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-if [[ $WAITFORIT_CHILD -gt 0 ]]; then
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- wait_for
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- WAITFORIT_RESULT=$?
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- exit $WAITFORIT_RESULT
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-else
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- if [[ $WAITFORIT_TIMEOUT -gt 0 ]]; then
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- wait_for_wrapper
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- WAITFORIT_RESULT=$?
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- else
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- wait_for
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- WAITFORIT_RESULT=$?
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- fi
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-fi
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-
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-if [[ $WAITFORIT_CLI != "" ]]; then
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- if [[ $WAITFORIT_RESULT -ne 0 && $WAITFORIT_STRICT -eq 1 ]]; then
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- echoerr "$WAITFORIT_cmdname: strict mode, refusing to execute subprocess"
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- exit $WAITFORIT_RESULT
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- fi
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- exec "${WAITFORIT_CLI[@]}"
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-else
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- exit $WAITFORIT_RESULT
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-fi
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linfutong