Shell Script for deploying to Heroku

deploy.sh

#!/bin/bash

# get current branch name
branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

push_heroku_branch()
{
  git push -f heroku deploy-to-heroku:master
}

checkout_deploy_branch()
{
  echo "force-deploy to Heroku from $branch"
  # checkout branch named "deploy-to-heroku"
  git checkout -b deploy-to-heroku
}

delete_public_assets_files()
{
  # delete files already exist public/assets (using rake assets:precompile)
  rm -rf public/assets
  git add .
  git commit -m 'remove public/assets'
}

assets_precompile()
{
  bundle exec rake assets:precompile
  git add .
  git commit -m 'deploy-to-heroku'
}

clean_up_branch()
{
  git checkout $branch
  git branch -D deploy-to-heroku
  echo "finish"
}

checkout_deploy_branch
delete_public_assets_files
assets_precompile
push_heroku_branch
clean_up_branch