A custom Capistrano 3.x strategy that allows deployment from a Git subfolder

README.md

You can use this strategy to deploy your Rails app properly when it's located in a subfolder in the main repo.

Supports Capistrano 3.x (tested on 3.2.1).

Usage

1. Place this file in lib/capistrano/git_subfolder_strategy.rb

2. Add this line to your Capfile: require_relative 'lib/capistrano/git_subfolder_strategy'

3. In your deploy.rb, set the following:

   set :git_strategy,  Capistrano::GitSubfolderStrategy
   set :git_subfolder, '/subfolder/to/deploy/from'

capistrano_git_subfolder_strategy.rb

require 'capistrano/git'

module Capistrano
  module GitSubfolderStrategy
    include Capistrano::Git::DefaultStrategy
  
    def release
      super
  
      full_repo_contents_folder = context.releases_path + "#{context.release_timestamp}-full"
      subfolder_to_deploy = File.join(full_repo_contents_folder, fetch(:git_subfolder))
  
      context.execute :mv, release_path, full_repo_contents_folder
      context.execute :mv, subfolder_to_deploy, release_path
      context.execute :rm, '-rf', full_repo_contents_folder
    end
  end
end