deploy.rb

#!/usr/bin/env ruby
require "net/ssh"

branch = `git rev-parse --abbrev-ref HEAD`.chomp

unless branch == 'main'
  puts "oops! you're on a different branch. Merge your changes into main and then try again."
  puts "exiting.."
  return
end

puts "deploying to production"

puts "step 1. pre-compiliing assets"

`RAILS_ENV=production bin/rails assets:clobber`
`RAILS_ENV=production bin/rails assets:precompile --quiet`

puts "step 2. committing changes"

`git add .`
`git commit -m "pre-compile assets"`

puts "step 3. pushing to Github"

`git push origin main`

puts "step 4. launching app on the remote server"

commands = [
  "source ~/.zshrc",
  "kill $(lsof -t -i:3000)",
  "git pull",
  "bundle install",
  "bin/rails db:migrate",
  "nohup bundle exec puma -C config/puma.rb > /dev/null 2>&1 &"
]

command = commands.join(";")

Net::SSH.start(ENV["AK_SERVER_IP"], "root") do |ssh|
  ssh.exec!(command)
end