Making Heroku deploy a one-liner

.sh

# Heroku Convenience Aliases                                                     
alias precompile='rake assets:precompile; git add -f public/assets/manifest.yml; git commit -m manifest'                                                         
alias migrate='heroku run rake db:migrate'                                       
alias clear_cache='heroku run rake cache:clear'                                  
alias deploy='precompile; git push heroku master; migrate; clear_cache'          

Capistrano is the "right" tool for this, but I know shell aliases much better.