gistfile1.sh

# Installing Rails 3.0.pre in it's own gemset using rvm.

# I use Ruby Enterprise Edition for rails development.
# You might want to replace ree with Your Favorite Ruby Implementation(tm)
rvm use ree%rails3                                     # Create new gemset called rails3.
gem install rake rack test-spec thor sqlite3-ruby      # Get some gems we'll need (rails3 gemset should be empty)
git clone git://github.com/rails/rails.git && cd rails # Get rails source.
git submodule init && git submodule update             # Get git dependencies.
rake package && gem install -f */pkg/*.gem pkg/*.gem   # Create gems and install
cd arel && thor :build && thor :install && cd ../..    # Install arel
rails --version                                        # => Rails 3.0.pre