rvm.deb: a sane system-wide rvm installation for debian/ubuntu

• rvm.deb provides a working ruby environment in a single package (rubygems, irb, rake, bundler, dev headers and debug symbols)
• rvm.deb comes pre-installed with the latest 1.8.7, 1.9.2, REE and JRuby
• rvm.deb includes dev packages required for popular rubygems (like libxslt-dev and libxml2-dev for nokogiri)
• rvm.deb plays nice with debian's ruby1.8 via rvm use system
• rvm.deb installs to /usr/bin/ruby so you don't need rvmsudo

usage

$ apt-get install rvm
$ echo "source /usr/lib/rvm/scripts/rvm" >> ~/.{profile,bashrc,bash_profile,bash_login,zshrc}

by default, /usr/bin/ruby points to debian's ruby1.8. to use REE by default system-wide:

$ sudo rvm --default ree

to use jruby without making it the system default:

$ rvm use jruby

to install and use rubinius:

$ sudo rvm install rbx
$ rvm use rbx

building

rvm does not provide a separate build vs install step, so the only way to package it is by doing an actual system-wide rvm installation in a chroot.

install pbuilder:

$ sudo apt-get install pbuilder

pick a distro, and give rvm root access inside the chroot so it can do a system-wide install:

$ echo "DISTRIBUTION=lenny"         > ~/.pbuilderrc
$ echo "EXTRAPACKAGES='debhelper'" >> ~/.pbuilderrc
$ echo "BUILDUSERID=''"            >> ~/.pbuilderrc
$ echo "BUILDUSERNAME=''"          >> ~/.pbuilderrc

create the chroot environment:

$ sudo pbuilder --create
$ sudo pbuilder --update

build the package:

$ pdebuild

install the newly built .deb:

$ cp /var/cache/pbuilder/result/rvm*.deb .
$ sudo dpkg -i rvm*.deb   # this will fail due to missing deps
$ sudo apt-get -f install # install those deps automatically
$ sudo dpkg -i rvm*.deb   # install the package