#!/bin/bash
#
# based on https://github.com/astroidmail/astroid/issues/339#issuecomment-300491869

cachedir=~/.cache/astroid-attachments
attachment=$(echo $1 | sed "s#.*astroid/##")

touch $cachedir/token.$attachment

if [ ! -e ${cachedir} ]; then
  mkdir -p ${cachedir}
fi

mv $1 ~/.cache/astroid-attachments/

inotifywait -e close "$1" &
ip=$!

# open file (you can replace this with xdg-open)
xdg-open "$cachedir/$attachment"

while inotifywait -r -e close $cachedir/$attachment; do rm $cachedir/token.$attachment || rm $cachedir/$attachment; done