[andreibondarev]

Brings the gem up to date with current Ruby, Rails and asset pipelines.

Support and CI

• Requires Ruby 3.2+, Rails 7.1+ and Administrate 1.0+. The old rails >= 5.2 claim was never tested, and Administrate 1.0 itself needs Rails 6.0+.
• CI runs Ruby 3.2 / 3.3 / 3.4 / 4.0 × Rails 7.1 / 7.2 / 8.0 / 8.1 (16 jobs). Rails 7.x runs on Sprockets and Rails 8 on Propshaft, so both pipelines are covered.
• The Rails version is picked with RAILS_VERSION in the Gemfile, and Gemfile.lock is no longer committed, since one lockfile can't cover the matrix.
• rspec-rails moves from 3.9 (2019) to 8.x. Dev dependencies move from the gemspec to the Gemfile.
• Adds .github/dependabot.yml with grouped monthly updates for bundler and GitHub Actions.

Library changes

• Propshaft: the sprockets-rails dependency is gone. The script is only registered for precompilation when Sprockets is present; Propshaft serves engine assets automatically.
• No JS globals: script.js is wrapped in an IIFE. Before, its top-level const init would throw a SyntaxError if any other script on the page declared init.
• Helpers are included via ActiveSupport.on_load(:action_view) instead of ActionView::Base.send :include, so ActionView isn't loaded early.
• Controller loading for route generation uses Rails.autoloaders.main.eager_load_dir instead of require_dependency.
• Button helper: passing options like confirm: without class: no longer drops the default button class (it rendered class="btn ").

Tests

• The Rails 6.1-generated dummy app is replaced with a minimal one that runs unchanged on Rails 7.1–8.1.
• New Cuprite system specs drive headless Chrome: the disabled state, submitted ids, query params kept, confirm accept/dismiss, select all, and no leaked globals. The globals spec fails against the script currently on main.
• Helper specs use Capybara matchers instead of exact HTML strings, because button_to markup differs slightly between Rails versions.

Gemspec

• required_ruby_version, metadata (source_code_uri, changelog_uri, bug_tracker_uri, rubygems_mfa_required), a fixed homepage URL, and an explicit file list. The built gem contains only app/, config/, lib/, README, CHANGELOG and LICENSE, and builds without warnings.

Verified locally

• All 16 Ruby × Rails combinations: 15 examples, 0 failures each, no deprecation warnings
• Batch action routes survive a development-mode code reload with the Zeitwerk loader