Add deprecation warnings for EOL Rails and Ruby and the associated wo…

…rk arounds (#1902)

* add: depreaction warnings

* fix: rubocop erors

* add: changelog entry

* Update docs/CHANGELOG.md

Co-authored-by: Cameron Dutro <camertron@gmail.com>

* Apply suggestions from code review

* remove coverage for render monkey patch

* remove coverage of deprecation warnings

---------

Co-authored-by: Cameron Dutro <camertron@gmail.com>
Co-authored-by: Joel Hawksley <joel@hawksley.org>
Co-authored-by: Joel Hawksley <joelhawksley@github.com>

docs/CHANGELOG.md

@@ -10,6 +10,10 @@ nav_order: 5
 
 ## main
 
+* Add deprecation warnings for EOL ruby and Rails versions and patches associated with them.
+
+    *Reegan Viljoen*
+
 * Add support for Ruby 3.3.
 
       *Reegan Viljoen*

lib/view_component/engine.rb

@@ -81,6 +81,8 @@ class Engine < Rails::Engine # :nodoc:
       next if Rails.version.to_f >= 6.1 || !app.config.view_component.render_monkey_patch_enabled
 
       # :nocov:
+      ViewComponent::Deprecation.deprecation_warning("Monkey patching `render`", "ViewComponent 4.0 will remove the `render` monkey patch")
+
       ActiveSupport.on_load(:action_view) do
         require "view_component/render_monkey_patch"
         ActionView::Base.prepend ViewComponent::RenderMonkeyPatch
@@ -99,6 +101,8 @@ class Engine < Rails::Engine # :nodoc:
       next if Rails.version.to_f >= 6.1
 
       # :nocov:
+      ViewComponent::Deprecation.deprecation_warning("using `render_component`", "ViewComponent 4.0 will remove `render_component`")
+
       ActiveSupport.on_load(:action_view) do
         require "view_component/render_component_helper"
         ActionView::Base.include ViewComponent::RenderComponentHelper
@@ -160,6 +164,16 @@ def serve_static_preview_assets?(app_config)
         end
       end
 
+      # :nocov:
+      if RUBY_VERSION < "3.0.0"
+        ViewComponent::Deprecation.deprecation_warning("Support for Ruby versions < 3.0.0", "ViewComponent 4.0 will remove support for Ruby versions < 3.0.0 ")
+      end
+
+      if Rails.version.to_f < 6.1
+        ViewComponent::Deprecation.deprecation_warning("Support for Rails versions < 6.1", "ViewComponent 4.0 will remove support for Rails versions < 6.1 ")
+      end
+      # :nocov:
+
       app.executor.to_run :before do
         CompileCache.invalidate! unless ActionView::Base.cache_template_loading
       end