Use Zeitwerk for loading components (#634)

[changelog]

added:
- "Backward-compatibility extension that you can load via `require "rom/compat"` (via #634 refs #607) (@solnic)"
changed:
- "[BREAKING] `Setup#auto_registration` was renamed to `Setup#auto_register`. You can restore the original method via rom/compat extension (via #634 refs #607) (@solnic)"
- "[internal] auto registration is now powered by Zeitwerk (via #634 refs #607) (@solnic)"

Author: solnic

Gemfile

@@ -19,6 +19,8 @@ gem "rom-sql", github: "rom-rb/rom-sql", branch: "master"
 gem "dry-monitor", github: "dry-rb/dry-monitor", branch: "master"
 gem "dry-events", github: "dry-rb/dry-events", branch: "master"
 
+gem "zeitwerk", github: "fxn/zeitwerk", branch: "main"
+
 group :sql do
   gem "jdbc-postgres", platforms: :jruby
   gem "jdbc-sqlite3", platforms: :jruby

Rakefile

@@ -5,7 +5,15 @@ require "bundler/gem_tasks"
 require "rspec/core"
 require "rspec/core/rake_task"
 
-RSpec::Core::RakeTask.new(:spec)
+RSpec::Core::RakeTask.new("spec:all") do |t|
+  t.pattern = ["spec/unit/**/*_spec.rb", "spec/integration/**/*_spec.rb"]
+end
+
+RSpec::Core::RakeTask.new("spec:compat") do |t|
+  t.pattern = ["spec/compat/**/*_spec.rb"]
+end
+
+task "spec" => ["spec:all", "spec:compat"]
 
 task default: :spec
 
@@ -25,8 +33,10 @@ namespace :benchmark do
   end
 end
 
+# rubocop:disable Lint/SuppressedException
 begin
   require "yard-junk/rake"
   YardJunk::Rake.define_task(:text)
 rescue LoadError
 end
+# rubocop:enable Lint/SuppressedException