#!/usr/bin/env bash

WGET_OPTS="--tries=5 --waitretry=5"

function remove_file() {
  if [ -f "$1" ]; then
    rm -f "$1"
  fi
}

function download_file() {
  remove_file "$2"
  if wget ${WGET_OPTS} "$1" -O "$2"; then
    return 0
  fi

  remove_file "$2"
  return 1
}