Step 1: Install XCode Command Line Tools

xcode-select --install

Step 2: Install and prepare Homebrew

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go/install)"
brew doctor
brew update

Step 3: Install rbenv

brew install rbenv ruby-build openssl
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
source ~/.bash_profile

Step 4: Install Ruby

Most people who have spent any time using the command line have learned to use vim well enough to edit conf files: moving the cursor, entering insert mode, and saving and quitting the file :wq. I know because I was one of those people for years. It wasn't until I found a few magical commands that I truly understood why vim was a true competitor in a world of IDE's and Textmate clones.

Step 1: Install and prepare Homebrew

ruby <(curl -fsSkL raw.github.com/mxcl/homebrew/go)
brew doctor
brew update
brew install apple-gcc42

Step 2: Install rbenv

brew install rbenv ruby-build openssl
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
source ~/.bash_profile

Step 3: Install Ruby

rbenv install 2.0.0-p0
rbenv rehash
rbenv global 2.0.0-p0
rbenv shell 2.0.0-p0

Here is the most modern approach to gem crafting with Bundler:

bundle gem your_gem
cd your_gem

edit your_gem.gemspec and add description, summary and optional website. Add required gems such as rspec to the Gemfile.

rspec --init 
touch spec/your_gem_spec.rb

Write good tests. Add your code to lib/your_gem.rb. When you're finished its time to build and push to rubygems.org:

Taylor-Realtors January 29, 2013

Taylor-Realtors is a Montana Real Estate Firm. The site features fast keyword and advanced searching using the Sphinx Engine with Thinking-Sphinx and multiple MLS feeds. One of challenges I faced during development was parsing the many types of files given to us through MLS providers because they don't all use the same format and they only provide images for the last couple days of listings so all the rest