scinote-web/config/initializers/addon_loader.rb

TARGET_ROOT = "#{Dir.pwd}/app/javascript/src/componentLoader".freeze
COMPONENTS_ROOT = "#{TARGET_ROOT}/components".freeze
UBER_CONFIG_PATH = "#{TARGET_ROOT}/availableAddons.js".freeze

begin
# clear previous build
FileUtils.rm_f Dir.glob("#{COMPONENTS_ROOT}/*")
FileUtils.rm_f Dir.glob(UBER_CONFIG_PATH)
File.new(UBER_CONFIG_PATH, 'w+')
enabled_addons = []

Dir.foreach('addons/') do |path|
  addons_client_root = "addons/#{path}/client"
  next unless Dir.exist? addons_client_root
  File.open(UBER_CONFIG_PATH, 'w') do |file|
    file.puts("import #{path} from \'./components/#{path}/config.js\';")
  end
  enabled_addons << "#{path}"
  File.symlink("#{Dir.pwd}/#{addons_client_root}", "#{COMPONENTS_ROOT}/#{path}")
end

File.open(UBER_CONFIG_PATH, 'a') do |file|
  file.puts("export default { #{enabled_addons.join(", ").gsub(/\"/, '')} };")
end

# handles error on the platforms that does not support symlink
# http://ruby-doc.org/core-2.2.0/File.html#symlink-method
rescue
  puts '[sciNote] Unable to load React components from addons!'
  puts '[sciNote] Your system does not support symlink!'
end