Windows Setup• Rails Installer - Ruby, Rails, Git, Sqlite, SQL Server support - railsinstaller.org• Ruby Installer - Just Ruby - rubyinstaller.org
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
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
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
Linux Setup• Pre-built Ruby package is usually out of date• Pre-built Rubygems package is usually out of date - Rubygems has its own means of updating itself• Need to install prerequisite packages before installing Ruby
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
Ruby Version Management• Useful for running older or different versions of Ruby• RVM or rbenv on Linux & OS X, pik on Windows
RVM• Works by wrapping existing Ruby & shell commands with shell scripts• Configuration can be either single user or multiple users• Support for gem sets
rbenv• Works by adding ~/.rbenv/shims to $PATH• Configuration is per user• Optional support for gem sets
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
pik• Installed as a gem• Allows you to choose which Ruby executable to use• Does not manage gem sets
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