Install Homebrew package manager !!!! First install command line tools https://developer.apple.com/downloads/index.action

TReX Env Install I.sh

#!/bin/sh

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

TReX Env Install II.sh

#!/bin/sh

# Install rvm
rvm implode # will remove current rvm
rm ~/.rvmrc
\curl -L https://get.rvm.io | bash
source ~/.rvm/scripts/rvm

# Install ruby
rvm install ruby-1.8.6-head --rubygems 1.3.5
chown -R $USER ~/.rvm
rvm use ruby-1.8.6-head@rails123 --create
rvm alias create default  ruby-1.8.6-head@rails123
patch ~/.rvm/rubies/ruby-1.8.6-head/lib/ruby/1.8/logger.rb <  bin/install/patches/fix_logger.patch # fix logger issue by patch

# Install mysql
brew install mysql
mkdir -p ~/Library/LaunchAgents
ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist

# Install mongodb
brew install mongodb
ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mongodb.plist

# Install memcached
brew install memcached
ln -sfv /usr/local/opt/memcached/*.plist ~/Library/LaunchAgents
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.memcached.plist

# Install supporting libraries
brew install imagemagick
brew install ghostscript

TReX Env Install III.sh

#!/bin/sh
 
# Install required gems
rvm --force gemset empty global
rvm --force gemset empty rails123
bin/install/gems.sh
 
# Setup db
bin/get_clean_db.sh
 
# Start server
cp config/unicorn.rb.example config/unicorn.rb
unicorn_rails -c config/unicorn.rb