Post Receive Hook

post-receive

#!/usr/bin/env ruby

# REF => https://gist.github.com/karmi/442106#file-post-receive-deploy-rb-L21
###################################################

# === CONFIGURE THE SCRIPT HERE ================= #

deploy_branch    = 'master' #=> change to production
git_path         = Dir.pwd
application_path = File.dirname(git_path) + "/current"

# =============================================== #

INPUT = STDIN.read.strip

old_revision,
new_revision,
branch = INPUT.split(' ')

# =============================================== #

if branch =~ Regexp.new(deploy_branch)

  DEPLOY =<<-END
  (
  unset GIT_DIR \
    && \
  git --work-tree=#{application_path} --git-dir=#{git_path} checkout -f
  )
  END

  # => unset GIT_DIR to fix "fatal . not a git repo" errors
  # => http://stackoverflow.com/a/4100577/1143732
  BUNDLE =<<-END
  (
  unset GIT_DIR \
   && \
  cd #{application_path} \
   && \
  bundle install \
   && \
  rake assets:precompile
  )
  END

  RESTART =<<-END
  (
  touch #{application_path}/tmp/restart.txt
  )
  END

  puts "Updating application code..."
  system DEPLOY
  puts "Bundling App..."
  system BUNDLE
  puts "Restarting application..."
  system RESTART

end

# =============================================== #
# =============================================== #