Mackerel plugin for file count

mackerel-plugin-filecount.zsh

#!/bin/zsh

if [[ "$MACKEREL_AGENT_PLUGIN_META" == 1 ]]; then
  cat <<EOF
# mackerel-agent-plugin
{
  "graphs": {
    "filecount.#": {
      "label": "File count",
      "unit": "integer",
      "metrics": [
        {
          "label": "total",
          "name": "total"
        }
      ]
    }
  }
}
EOF
  exit 0
fi

for f in ~/{,Documents,Downloads,Desktop,Dropbox}; do
  printf 'filecount.%s.total\t%s\t%s\n' \
    "${(L)${${${${f/#$HOME/home}//\//_}#_}%_}#home_}" \
    "$(set -- "$f"/*(DN) && echo "$#")" \
    "$(date +%s)"
done