nginx-proxy/test/lib/helpers.bash

## add the retry function to bats

# Retry a command $1 times until it succeeds. Wait $2 seconds between retries.
function retry {
    local attempts=$1
    shift
    local delay=$1
    shift
    local i

    for ((i=0; i < attempts; i++)); do
        run "$@"
        if [ "$status" -eq 0 ]; then
            echo "$output"
            return 0
        fi
        sleep $delay
    done

    echo "Command \"$@\" failed $attempts times. Status: $status. Output: $output" >&2
    false
}