Switch between github branches and change the rails database.yml

switch2branch.sh

#!/bin/sh
# Usage: switch2branch branchname
# Easily switch between branches and their databases for Rails projects.
# Checks out given branch and copies the branch's database.yml to the active database.yml
# Outputs a small list of databases being used.
# Make sure you have set up your branch's database.yml in #{RAILS_ROOT}/config/database.branch.#{branchname}.yml
git checkout $1 && cp ./config/database.branch.$1.yml ./config/database.yml
echo Using:
egrep "^\\w+:|database:" config/database.yml | sed s/database:/\ /