$ vim --version | grep ruby 
+printer -profile -python +quickfix +reltime -rightleft -ruby +scrollbind  

 
$ sudo port clean vim 
Password: 
--->  Cleaning vim 

 
$ sudo port install vim +multibyte +ruby 
--->  Fetching ctags 
--->  Attempting to fetch ctags-5.7.tar.gz from http://nchc.dl.sourceforge.net/ctags 
--->  Verifying checksum(s) for ctags 
--->  Attempting to fetch ncurses-5.7.tar.gz from ftp://ftp.dti.ad.jp/pub/GNU/ncurses 
--->  Attempting to fetch gettext-0.17.tar.gz from ftp://ftp.dti.ad.jp/pub/GNU/gettext 
--->  Attempting to fetch perl-5.8.8.tar.bz2 from http://distfiles.macports.org/perl5.8 
--->  Attempting to fetch gettext-1.05.tar.gz from ftp://ftp.cpan.org/pub/CPAN/modules/by-module/Locale 
--->  Attempting to fetch help2man-1.36.4.tar.gz from ftp://ftp.dti.ad.jp/pub/GNU/help2man 
--->  Attempting to fetch m4-1.4.12.tar.bz2 from ftp://ftp.dti.ad.jp/pub/GNU/m4 
--->  Attempting to fetch autoconf-2.63.tar.bz2 from ftp://ftp.dti.ad.jp/pub/GNU/autoconf 
--->  Attempting to fetch openssl-0.9.8i.tar.gz from http://distfiles.macports.org/openssl 
--->  Attempting to fetch readline52-001 from ftp://ftp.dti.ad.jp/pub/GNU/readline/readline-5.2-patches/ 
--->  Attempting to fetch readline-5.2.tar.gz from http://distfiles.macports.org/readline 
--->  Attempting to fetch ruby-1.8.7-p72.tar.bz2 from ftp://ftp.iij.ad.jp/pub/lang/ruby/1.8 
--->  Attempting to fetch vim-7.2.tar.bz2 from http://distfiles.macports.org/vim72 
--->  Attempting to fetch vim-7.2-extra.tar.gz from http://distfiles.macports.org/vim72 
--->  Attempting to fetch vim-7.2-lang.tar.gz from http://distfiles.macports.org/vim72 
--->  Installing vim @7.2.065_0+ruby 
--->  Activating vim @7.2.065_0+ruby 
--->  Cleaning vim 

 
$ sudo gem install vim-ruby 
$ sudo vim-ruby-install.rb 

Possible Vim installation directories: 
	1) /Users/foo/.vim 
	2) /usr/share/vim/vimfiles 

Please select one (or anything else to specify another directory): 1 

Target directory '/Users/foo/.vim' does not exist. 
Do you want to create it? [Yn] y 

 
$ vi ~/.vimrc 

 
set tabstop=2 
set shiftwidth=2 
set expandtab 
set autoindent 
set nocompatible 
syntax on 
filetype on 
filetype indent on 
filetype plugin on 

 
$ vim --version | grep ruby 
+printer -profile -python +quickfix +reltime -rightleft -ruby +scrollbind