okular save/restore session

okular-session

#!/usr/bin/env bash
# Save and restore Okular sessions
set -e

dump() {
  for fd in /proc/$(ps -C okular -o pid= | sed -e's/\s//g')/fd/*; do
    readlink "$fd"
  done | grep '.pdf'
}

save() {
  dump >~/.okular-session
}

# we use xdg-open instead of okular so that
# it will open the files in new tabs instead
# of new windows
restore() {
  while read file; do
    xdg-open "$file"
  done <~/.okular-session
}

case "$1" in
save | restore)
  $1
  ;;
*)
  echo "valid commands: save, restore" >&2
  exit 1
  ;;
esac