Clear cache of CloudFlare resources when they are updated.

purge_cloudflare.sh

# Usage: purge_cloudflare.sh <public folder where hugo is hosted from> <base url of website>
# Example:
# purge_cloudflare.sh /var/www/ "https://example.com/"

key="<api_key>"
id="<zone_id>"
email="<email>"
inDir=$1 # eg. example.com
baseUrl=$2 # eg. example.com

# Finds all files less than a minute old.
dirs=$(find $inDir -type f \( ! -iname ".gitignore" \) -cmin 1)
if [[ ${#dirs} -gt 0 ]]; then
  links="\""
  for f in $dirs;
  do
    link=${f/$inDir/""}
    links+=$baseUrl
    links+=$link
    links+="\",\""
  done

  links=${links:0:${#links}-2}

  curl -X DELETE "https://api.cloudflare.com/client/v4/zones/$id/purge_cache" \
      -H "X-Auth-Email: $email" \
      -H "X-Auth-Key: $key" \
      -H "Content-Type: application/json" \
      --data "{\"files\":[$links]}"
fi