Capfile

require "capistrano/setup"
require "capistrano/deploy"
require "capistrano/scm/git"
install_plugin Capistrano::SCM::Git
require "capistrano/rvm"
require "capistrano/bundler"
require "capistrano/rails/migrations"
require "capistrano/linuxpl"
Dir.glob("lib/capistrano/tasks/*.rake").each { |r| import r }

dashboard.gemspec

# components/dashboard/dashboard.gemspec

$LOAD_PATH.push File.expand_path("../lib", __FILE__)

# Maintain your gem's version:
require "dashboard/version"

# Describe your gem and declare its dependencies:
Gem::Specification.new do |s|
  s.name        = "dashboard"
  s.version     = Dashboard::VERSION
  s.authors     = ["Mariusz Błaszczak"]
  s.email       = ["mariusz.blaszczak@gmail.com"]
  s.homepage    = ""
  s.summary     = ""
  s.description = ""
  s.license     = "MIT"

  s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
  s.test_files = Dir["spec/**/*"]

  s.add_dependency "rails", "~> 5.1.3"
  s.add_dependency "sass-rails", ">= 5.0"
  s.add_dependency "bootstrap-sass", "~> 3.3.6"
  s.add_dependency "coffee-script"
  s.add_dependency "font-awesome-rails"
  s.add_dependency "parsley-rails"
  s.add_dependency "devise"
  s.add_development_dependency "sqlite3"
  s.add_development_dependency "rspec-rails"
  s.add_development_dependency "pry-rails"
  s.add_development_dependency "pry-byebug"
end

dashboard_component_Gemfile

# components/dashboard/Gemfile
source "https://rubygems.org"
gemspec

deploy.rb

lock "3.8.1"

set :application, "test"
set :repo_url, "git@github.com:test/test.git"
set :keep_releases, 1
set :default_shell, "/bin/bash --login"
set :ssh_options, forward_agent: true
set :tmp_dir, "/home/profiart/tmp"

before :deploy, "deploy:run_tests"
after "deploy:log_revision", "deploy:restart_server"

Gemfile

# Gemfile
source "https://rubygems.org"

git_source(:github) do |repo_name|
  repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
  "https://github.com/#{repo_name}.git"
end

gem "jbuilder", "~> 2.5"
gem "mysql2", ">= 0.3.18", "< 0.5"
gem "puma", "~> 3.7"
gem "rails", "~> 5.1.3"
gem "react_on_rails", "8.0.0"
gem "sass-rails", "~> 5.0"
gem "sentry-raven"
gem "turbolinks", "~> 5"
gem "uglifier", ">= 1.3.0"

group :development do
  gem "capistrano", "~> 3.6"
  gem "capistrano-linuxpl", "0.0.3"
  gem "capistrano-rails", "~> 1.2"
  gem "capistrano-rvm"
  gem "guard"
  gem "guard-rubocop"
  gem "listen", ">= 3.0.5", "< 3.2"
  gem "spring"
  gem "spring-watcher-listen", "~> 2.0.0"
  gem "web-console", ">= 3.3.0"
end

group :development, :test do
  gem "pry-rails"
end

group :test do
  gem "capybara", "~> 2.16"
  gem "rspec-rails"
  gem "selenium-webdriver"
end

gem "mini_racer", platforms: :ruby
gem "webpacker_lite"

path "components" do
  gem "dashboard"
end

run_tests.rake

# lib/capistrano/tasks/run_tests.rake

set :test_log, "log/capistrano.test.log"

namespace :deploy do
  desc "Runs test before deploying, can't deploy unless they pass"
  task :run_tests do
    run_locally do
      if fetch(:branch) == "master"
        info "--> Running tests SKIPPED on not MASTER branch"
        next
      end
      info "--> Running tests locally, please wait ..."

      unless system "bundle exec rspec"
        puts "--> Tests failed."
        exit
      end
      unless system("cd components/dashboard ;RAILS_ENV='test' bundle exec rspec")
        puts "--> Tests failed."
        exit
      end

      info "--> All tests passed"
    end
  end
end