Quick and dirty HTTP status check

status.sh

#!/usr/bin/env bash
set -uo pipefail

STATUS_CHUNKS="${STATUS_CHUNKS:-10}"

URL="${1:-}"
if [[ "$URL" == "" ]]
then
    echo >&2 "Usage: $0 URL"
    exit 1
fi

COUNT=0
RESET="\033[0m"
PALE="$RESET\033[2m"
YELLOW="$RESET\033[33;1m"
GRAY="$RESET\033[38;5;242m"

declare -A COUNTERS
declare -A TIMERS

summary() {
    echo -en '\r'
    echo "  "
    echo "SUMMARY"
    for code in ${!COUNTERS[@]}
    do
        count=${COUNTERS[${code}]}
        total=${TIMERS[${code}]}
        milis=$(( total / count ))
        echo -e "    $(color $code) $count reqs in $total ms (Average $milis ms)"
    done

    exit
}

record() {
    local code=$1
    local time=$2
    local count=1
    local total=0

    if [[ -n "${COUNTERS[$code]:-}" ]]
    then
        count=${COUNTERS[$code]}
    fi
    COUNTERS[$code]=$(( count + 1 ))

    if [[ -n "${TIMERS[$code]:-}" ]]
    then
        total=${TIMERS[$code]}
    fi
    TIMERS[$code]=$(( total + time ))
}

color() {
    local code=$1
    if [[ "$code" -ge 400 ]]
    then
        echo "$RESET\033[41;1m $code $RESET"
    elif [[ "$CODE" -ge 300 ]]
    then
        echo "$RESET\033[43;38;5;232;1m $code $RESET"
    else
        echo "$RESET\033[32;1m $code $RESET"
    fi
}

trap summary SIGINT SIGABRT SIGHUP SIGQUIT


echo
echo -e "Checking ${YELLOW}${URL}${RESET}"

while true
do
    COUNT=$(( COUNT + 1 ))
    RESULT=$(curl -so /dev/null $URL -w "%{http_code}@%{time_total}")
    CODE="$(echo "$RESULT" | cut -d@ -f1)"
    TIME="$(echo "$RESULT" | cut -d@ -f2)"
    COLOR="$(color $CODE)"

    if [[ "$(( COUNT % STATUS_CHUNKS ))" == "0" ]]
    then
        echo
        echo -e "Still checking ${YELLOW}${URL}${RESET}"
    fi

    NOW=$(date +'%H:%M:%S')
    MILI="$(echo $TIME | awk '{print int($1 * 1000)}')"
    HEAD="$GRAY %6s $COLOR $PALE%5.0f ms$GRAY  at %s$RESET\n"
    printf "$HEAD" "$COUNT" "$MILI" "$NOW"
    record $CODE $MILI
done