Zeitwerk constant missing when class moved into nested /public dir-CodePudding

I'm refactoring here a classic Rails app into a packages/modularized structure using packwerk. So what used to be:

- app
  - services
    - foo

turned into:

- packages
  - package_name
    - services
      - foo

I added the following line in application.rb for autoloading:

class Application < Rails::Application
  config.load_defaults 6.0

  # packwerk files
  config.paths.add 'packages', glob: '*/{*,*/concerns}', eager_load: true

Until this point it worked fine and my Foo service was available at Foo.

But when I created a /public folder and moved services there (standard for packwerk):

- packages
  - package_name
    - public
      - services
        - foo

it stopped working and calling Foo started throwing unitialized constant error. Same for PackageName::Services::Foo, PackageName::Foo, etc.

Adding zeitwerk.rb initializer in case it's of any help, although I don't see there anything that could be causing the issue:

Rails.autoloaders.each do |autoloader|
  # See inflections.rb for inflector rules
  autoloader.inflector.inflect(
    "ai_wrapper" => "AIWrapper", # ActiveAdmin class
  )

  # ignore ActiveAdmin classes: without this line zeitwerk will match constants like Documents or DocumentFields
  # to /ops/admin classes instead of core/models directories
  autoloader.ignore(Rails.root.join('packages/ops/admin'))
end

CodePudding user response：

By adding an intermediate public directory, the wildcard pattern made packages/package_name/public an autoload path, and therefore the constant expected to be defined in that file was now Services::Foo.

In order to define and use the same top-level Foo constant after the introduction of the new directory, the configuration can use a different wildcard pattern so that packages/package_name/public/services becomes an autoload path, or can alternatively stay with packages/package_name/public and collapse services.