ruby-install

Installs Ruby, JRuby, Rubinius or MagLev.

Features

Supports installing arbitrary versions.
Supports installing into /opt/rubies/ for root and ~/.rubies/ for users by default.
Supports installing into arbitrary directories.
Supports applying arbitrary patches.
Supports specifying arbitrary ./configure options.
Supports downloading archives using wget or curl.
Supports verifying downloaded archives using md5sum or md5.
Supports installing build dependencies via the package manager:
- apt
- yum
- pacman
- brew
Has tests.

Anti-Features

Does not require updating every time a new Ruby version comes out.
Does not require recipes for each individual Ruby version or configuration.

Requirements

bash
wget or curl
md5sum or md5
tar

Synopsis

Install the current stable version of Ruby:

$ ruby-install ruby

Install a latest version of Ruby:

$ ruby-install ruby 1.9

Install a specific version of Ruby:

$ ruby-install ruby 1.9.3-p429

Install a Ruby into a specific directory:

$ ruby-install -i /usr/local/ ruby 1.9.3-p429

Install a Ruby with a specific patch:

$ ruby-install -p https://raw.github.com/gist/4136373/falcon-gc.diff ruby 1.9.3-p429

Install a Ruby with specific configuration:

$ ruby-install ruby 2.0.0 -- --enable-shared --enable-dtrace CFLAGS="-O3"

Install

wget -O ruby-install-0.2.1.tar.gz https://github.com/postmodern/ruby-install/archive/v0.2.1.tar.gz
tar -xzvf ruby-install-0.2.1.tar.gz
cd ruby-install-0.2.1/
sudo make install

PGP

All releases are PGP signed for security. Instructions on how to import my PGP key can be found on my blog. To verify that a release was not tampered with:

wget https://raw.github.com/postmodern/ruby-install/master/pkg/ruby-install-0.2.1.tar.gz.asc
gpg --verify ruby-install-0.2.1.tar.gz.asc ruby-install-0.2.1.tar.gz

Homebrew

ruby-install can also be installed with homebrew:

brew install ruby-install

Alternatives

Endorsements

I like the approach you're taking. Curious to see how it plays out.

-- Sam Stephenson of rbenv

zmalltalker/ruby-install