functions to assist in managing mounted devices on Mac OS X

eject.sh

eject () {
  case "x$1" in
	  x)
	    disk=`osascript -e 'tell application "Finder" to get name of every disk whose ejectable is true' 2>/dev/null |
            perl -ne 'print((split(", "))[0], "\n");'`
	    ;;
	  *)
	    disk="$1"
	    ;;
  esac

  if [ "$disk" ]; then
	  echo "ejecting $disk"
     osascript -e "tell application \"Finder\" to eject \"$disk\""
  else
     echo "no ejectable media"
  fi
}

ejectall () {
  osascript -e 'tell application "Finder" to eject (every disk whose ejectable is true)'
}

_eject () {
  local cur=${COMP_WORDS[COMP_CWORD]}
  local IFS=$'\n'
  local escaped_single_quote="'\''"
  local i=0

  COMPREPLY=( $( cd /Volumes; compgen -o dirnames -- "$cur" ) )

  for entry in ${COMPREPLY[*]}; do
    if [[ "${cur:0:1}" == "'" ]]; then
      # started with single quote, escaping only other single quotes
      # [']bla'bla"bla\bla bla --> [']bla'\''bla"bla\bla bla
      COMPREPLY[$i]="${entry//\'/${escaped_single_quote}}"
    elif [[ "${cur:0:1}" == "\"" ]]; then
      # started with double quote, escaping all double quotes and all backslashes
      # ["]bla'bla"bla\bla bla -> ["]bla'bla\"bla\\bla bla
      entry="${entry//\\/\\\\}"
      COMPREPLY[$i]="${entry//\"/\\\"}"
    else
      # no quotes in front, escaping _everything_
      # [ ]bla'bla"bla\bla bla -> [ ]bla\'bla\"bla\\bla\ blal
      entry="${entry//\\/\\\\}"
      entry="${entry//\'/\'}"
      entry="${entry//\"/\\\"}"
      COMPREPLY[$i]="${entry// /\\ }"
    fi
    (( i++ ))
  done
  return 0
}

complete -F _eject eject