Ruby setup presentation given at ATLRUG Emerald City on 7/14/2012

1. Ruby & Rails
Setup
Alan Hecht

2. Windows Setup
• Rails Installer
- Ruby, Rails, Git, Sqlite, SQL Server support
- railsinstaller.org
• Ruby Installer
- Just Ruby
- rubyinstaller.org

3. Git on Windows
• Git for Windows
- Minimal environment to run Git
• msysGit
- Build Git on Windows as well as run it
• GitHub for Windows
- GUI front end for msysGit

4. OS X Setup
• System version of Ruby & Rails is old
• Git included with Lion & Mountain Lion
- Version is reasonably up-to-date
• Homebrew for additional packages like
ImageMagick or ffmpeg

5. OSX - GCC Installation
• XCode
• Apple provides command line tools for
Lion/Mountain Lion which include GCC
• OS X GCC Installer available for Snow
Leopard on GitHub

6. Linux Setup
• Pre-built Ruby package is usually out of date
• Pre-built Rubygems package is usually out of
date
- Rubygems has its own means of updating itself
• Need to install prerequisite packages before
installing Ruby

7. Ubuntu - Prerequisites
• The following packages are needed for rvm &
ruby on Ubuntu 12.04:
build-essential bison openssl libreadline6
libreadline6-dev zlib1g zlib1g-dev libssl-dev
libyaml-dev sqlite3 libsqlite3-0 libxml2-dev
libxslt-dev autoconf curl libtool

8. Ruby Version Management
• Useful for running older or different
versions of Ruby
• RVM or rbenv on Linux & OS X, pik on
Windows

9. RVM
• Works by wrapping existing Ruby &
shell commands with shell scripts
• Configuration can be either single user
or multiple users
• Support for gem sets

10. rbenv
• Works by adding ~/.rbenv/shims to
$PATH
• Configuration is per user
• Optional support for gem sets

11. RVM or rbenv
• rbenv is lighter weight & simpler
• RVM is easier to use, more suitable for
a development environment
- Wrapping shell builtins with a script isn’t
evil
• rbenv more suitable for a production
server

12. pik
• Installed as a gem
• Allows you to choose which Ruby
executable to use
• Does not manage gem sets