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 downloading from mirrors.
• Supports downloading/applying patches.
• 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

List supported Rubies and their major versions:

$ ruby-install

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 from a official site with directly download:

$ ruby-install -M https://ftp.ruby-lang.org/pub/ruby ruby 2.0.0-p247

Install a Ruby from a mirror:

$ ruby-install -M http://www.mirrorservice.org/sites/ftp.ruby-lang.org/pub/ruby ruby 2.0.0-p247

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"

Integration

Using ruby-install with RVM:

$ ruby-install -i ~/.rvm/rubies/ruby-2.0.0-p247 ruby 2.0.0-p247

Using ruby-install with rbenv:

$ ruby-install -i ~/.rbenv/versions/ruby-2.0.0-p247 ruby 2.0.0-p247

Install

wget -O ruby-install-0.3.1.tar.gz https://github.com/postmodern/ruby-install/archive/v0.3.1.tar.gz
tar -xzvf ruby-install-0.3.1.tar.gz
cd ruby-install-0.3.1/
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-0.3.1.tar.gz.asc
gpg --verify ruby-install-0.3.1.tar.gz.asc ruby-install-0.3.1.tar.gz

Homebrew

ruby-install can also be installed with homebrew:

brew install ruby-install

Alternatives

• RVM
• ruby-build

Endorsements

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

-- Sam Stephenson of rbenv