[test] Re-generate the rails72 sample test from scratch

Use a defined methodology to generate the stubs to make it easier to support new versions.

Author: chadlwilson

README.md

@@ -348,6 +348,20 @@ package and push the .jar every time a commit changes a source file).
 * mvn release:perform (possibly with -DuseReleaseProfile=false due to Javadoc doclint failures for now)
 * rake clean gem SKIP_SPECS=true and push the gem
 
+## Adding testing for new Rails versions
+
+* Add the new version to `.github/workflows/maven.yml` under the `matrix` section
+* Add a new configuration to the `Appraisals` file, then
+    ```bundle exec appraisal generate```
+* Generate a new stub Rails application for the new version
+    ```shell
+    VERSION=rails72
+    cd src/spec/stub
+    rm -rf $VERSION && BUNDLE_GEMFILE=~/Projects/community/jruby-rack/gemfiles/${VERSION}_rack22.gemfile bundle exec rails new $VERSION --minimal --skip-git --skip-docker --skip-active-model --skip-active-record --skip-test --skip-system-test --skip-dev-gems --skip-bundle --skip-keeps --skip-asset-pipeline --skip-ci --skip-brakeman --skip-rubocop
+    ```
+* Manual changes to make to support testing
+  * In `config/production.rb` comment out the default `config.logger` value so jruby-rack applies its own `RailsLogger`.  
+
 ## Support
 
 Please use [github][4] to file bugs, patches and/or pull requests.

src/spec/stub/.gitignore

@@ -1,2 +1,21 @@
 */tmp
 */*.war
+
+# Rails stub files we don't want
+rails*/Rakefile
+rails*/Gemfile
+rails*/Gemfile.lock
+rails*/bin
+rails*/README.md
+rails*/config.ru
+rails*/.ruby-version
+rails*/package.json
+
+# Rails generates assets in samples that we don't really want
+rails*/**/*.ico
+rails*/**/*.png
+rails*/**/*.svg
+rails*/**/*.html
+rails*/**/*.erb
+rails*/**/*.js
+rails*/**/*.css

src/spec/stub/rails72/app/controllers/application_controller.rb

@@ -1,2 +1,4 @@
-class ApplicationController < ActionController::API
+class ApplicationController < ActionController::Base
+  # Only allow modern browsers supporting webp images, web push, badges, import maps, CSS nesting, and CSS :has.
+  allow_browser versions: :modern
 end

src/spec/stub/rails72/app/controllers/concerns/.keep

@@ -0,0 +1,2 @@
+module ApplicationHelper
+end