The portion of my .bash_login doc that sets up gemdoc and gem open

.bash_login

# gemdoc via http://stephencelis.com/archive/2008/6/bashfully-yours-gem-shortcuts
# needs to happen 
gemdoc() {
  open $GEM_HOME/doc/`$(which ls) $GEM_HOME/doc | grep $1 | sort | tail -1`/rdoc/index.html
}

_completegemlist() {
  local cmd=${COMP_WORDS[0]}
  local subcmd=${COMP_WORDS[1]}
  local cur=${COMP_WORDS[COMP_CWORD]}

  if [[ "$cmd" == "gemdoc" ]] ; then subcmd="doc" ; fi

  case "$subcmd" in
      open | doc)
          words=`ruby -rubygems -e 'puts Dir["{#{Gem::SourceIndex.installed_spec_directories.join(",")}}/*.gemspec"].collect {|s| File.basename(s).gsub(/\.gemspec$/, "")}'`
          ;;
      *)
          return
          ;;
  esac

  COMPREPLY=($(compgen -W "$words" -- $cur))
  return 0
}

complete -o default -o nospace -F _completegemlist gemdoc
complete -o default -F _completegemlist gem

# end gemdoc