Revert changes and return nil for asset_host and relative_url_root if… #317

	name: Generator specs

	on: [push, pull_request]

	jobs:
	test:
	name: Generator specs
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	ruby: ['2.6', '2.7', '3.0']
	use_package_json_gem: ['true', 'false']
	gemfile:
	- gemfiles/Gemfile-rails.6.0.x
	- gemfiles/Gemfile-rails.6.1.x
	- gemfiles/Gemfile-rails.7.0.x
	# Uncomment the following line only to ensure compatibility with the
	# upcomming Rails versions, maybe before a release.
	#- gemfiles/Gemfile-rails-edge
	exclude:
	- ruby: 2.6
	os: ubuntu-latest
	gemfile: gemfiles/Gemfile-rails.7.0.x
	- ruby: 2.6
	os: ubuntu-latest
	gemfile: gemfiles/Gemfile-rails-edge
	env:
	BUNDLE_GEMFILE: ${{ matrix.gemfile }}

	steps:
	- uses: actions/checkout@v4
	with:
	persist-credentials: false
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	- name: Install dependencies
	run: bundle install
	- run: bundle exec rake run_spec:generator
	env:
	SHAKAPACKER_USE_PACKAGE_JSON_GEM: ${{ matrix.use_package_json_gem }}

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