How can I omit slice component booting?

1

We are using Hanami 2.
We have both a not-slice component and a slice component in our codebase.
We would like to know how to boot only the not-slice component.

For example, even if our codebase contains both the not-slice component and the slice component, we want to boot only the not-slice component.
How can we achieve this?

We have tried setting HANAMI_SLICES=“” in the environment, but we encountered an error because even though our codebase has a slice component, the HANAMI_SLICES environment variable is empty.

2

Setting an empty HANAMI_SLICES will do this, see for instance my CI make target:

.PHONY: ci
ci: export HANAMI_ENV := test
ci: ## setup database and run test suite
	$(RAKE) db:test:prepare
	HANAMI_SLICES= $(RSPEC) --tag ~slice
	HANAMI_SLICES=ciam $(RSPEC) --tag slice
	HANAMI_SLICES=oauth $(RSPEC) --tag slice
	HANAMI_SLICES=scim $(RSPEC) --tag slice

Can you provide some more detail about how your components are structured, and what is going wrong exactly?

3

Thank you for your fast reply！

And I’m sorry for my ambiguous question.

I want to talk about not test, but normal booting.

root/
 ├ app/
 │ └ actions/
 │ └ actions.rb
 ├ config/
 │ └ app.rb
 │ └ routes.rb
 ├ lib/
 ├ slices/
 │ └ admin/
 │   └ actions/


module Bookshelf
  class Routes < Hanami::Routes
    scope "v1" do
      use Rack::Auth::Basic
      get "/page" do
        "Some restricted content"
      end
    end

    slice :admin, at: "/admin" do
      use Rack::Auth::Basic

      get "/books", to: "books.index"
    end
  end
end

export HANAMI_SLICES=

When we access /v1/page, we got the following error.(We don’t get the error just after booting my app.)

Hanami::SliceLoadError: Slice 'admin' not found

bundle exec hanami c
> config.slices
=> []
4

Ah yes, you are running into this problem.

This is a reminder that I need to make the time to work on a resolution for this. In the meantime, you can follow the mitigation I used:

require "hanami/slice/router"

class RouteResolver < Hanami::Slice::Routing::Resolver
  def excluding?(slice_name)
    if slices && slice_dirs.include?(slice_name)
      slice_name = slice_name.to_s
      slices.none? { _1 == slice_name }
    else
      false
    end
  end

  private

  def slices = slice.config.slices

  def slice_dirs
    @_slice_dirs ||=
      Dir[slice.root / "slices" / "*"]
      .select { |path| File.directory?(path) }
      .map { |path| File.basename(path).to_sym }
  end
end

module SliceRouting
  def slice(slice_name, ...)
    return if @resolver.excluding?(slice_name)

    super
  end
end

Hanami::Slice::Router.prepend SliceRouting

class App < Hanami::App
  config.router.resolver = RouteResolver
end
5

@alassek

That’s right!

Thank you for your kind guidance.

I’ll wait for the fix!!