CSCI E-168

NOTE: Rails 2.3.3 only: Note specification of version number in gem install below; for more information, see https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/3144-undefined-method-for-string-ror-234

Remember that the URL want to use is this (step 4 below):

<br />
curl -O -L http://github.com/relevance/etc/raw/master/bash/ruby_switcher.sh<br />

A few notes:

1. In order to obtain and run the ruby_switcher.sh code, you will need to install git and curl. And, of course, you will need Sqlite3 and Sqlite3’s development headers. In the example below, I’m using apt-get, which is a package manager used in the Debian/Ubuntu world. If you’re on Redhat or another distribution, you would use yum or whatever tool is typical for that distro. You may need to look up the package names that will provide you with git, curl, etc.Additionally, you will want some packages regarding the “curses” package. Annoying, the installation of curses will install Ruby 1.9 system-wide on your Linux system. We need curses, though, so install these packages; if you require Ruby 1.8.6 or 1.8.7, you should be able to keep using those by re-installing them locally with the ruby_switcher.sh script.

   <br />
   sudo apt-get install git curl sqlite3 libsqlite3-dev libncurses-ruby1.9 libncurses5-dev libncursesw5-dev<br />
   

2. The blog post cited above discusses the other packages (such as build-essential) that you’ll need to compile Ruby from source on Linux. You’ll need to install these with apt-get (or whatever package manager you use) as well.
3. Remember that the ruby_switcher.sh code is installed by a regular user, not by root.
4. The URL given for ruby_switcher.sh gets a specific older version. To get the latest, use the URL http://github.com/relevance/etc/raw/master/bash/ruby_switcher.sh
5. Now use gem to install Rails and the Sqlite3 gem:

   <br />
   gem install rails -v 2.3.3<br />
   sqlite3-ruby<br />
   

6. To verify, see the verification steps in the OS/X screencast.