gf wants a sweater that is out of stock

patagonia.sh

#!/usr/bin/env bash

set -euE -o pipefail -o noclobber

lookup() {
  local matches=$(wget -qO- "http://www.patagonia.com/on/demandware.store/Sites-patagonia-us-Site/en_US/Product-Variation?pid=25542&dwvar_25542_color=TUCV&dwvar_25542_size=M" | pup '.availability-msg > p.in-stock-msg' | wc -l)

  echo "$matches"
  if [ "$matches" -gt 0 ]; then
    terminal-notifier -message "in stock"
  fi
}

while : ; do
  lookup
  sleep 300
done