Support CHANGELOG with release headers in the linter

Author: rafaelfranca

tools/rail_inspector/lib/rail_inspector/changelog.rb

@@ -115,6 +115,11 @@ def initialize(file)
 
       def parse
         until @buffer.eos?
+          if peek_release_header?
+            pop_entry
+            next parse_release_header
+          end
+
           if peek_footer?
             pop_entry
             next parse_footer
@@ -136,6 +141,18 @@ def parse_line
 
         FOOTER_TEXT = "Please check"
 
+        RELEASE_HEADER = "## Rails"
+
+        def peek_release_header?
+          @buffer.peek(RELEASE_HEADER.length) == RELEASE_HEADER
+        end
+
+        def parse_release_header
+          @buffer.scan(
+            /#{RELEASE_HEADER} .*##\n\n/o
+          )
+        end
+
         def parse_footer
           @buffer.scan(
             /#{FOOTER_TEXT} \[\d-\d-stable\]\(.*\) for previous changes\.\n/o

tools/rail_inspector/test/fixtures/action_view.md

@@ -0,0 +1,41 @@
+## Rails 7.1.0.beta1 (September 13, 2023) ##
+
+*   Fix `simple_format` with blank `wrapper_tag` option returns plain html tag
+
+    By default `simple_format` method returns the text wrapped with `<p>`. But if we explicitly specify
+    the `wrapper_tag: nil` in the options, it returns the text wrapped with `<></>` tag.
+
+    Before:
+
+    ```ruby
+    simple_format("Hello World", {},  { wrapper_tag: nil })
+    # <>Hello World</>
+    ```
+
+    After:
+
+    ```ruby
+    simple_format("Hello World", {},  { wrapper_tag: nil })
+    # <p>Hello World</p>
+    ```
+
+    *Akhil G Krishnan*, *Junichi Ito*
+
+*   Don't double-encode nested `field_id` and `field_name` index values
+
+    Pass `index: @options` as a default keyword argument to `field_id` and
+    `field_name` view helper methods.
+
+    *Sean Doyle*
+
+*   Allow opting in/out of `Link preload` headers when calling `stylesheet_link_tag` or `javascript_include_tag`
+
+    ```ruby
+    # will exclude header, even if setting is enabled:
+    javascript_include_tag("http://example.com/all.js", preload_links_header: false)
+
+    # will include header, even if setting is disabled:
+    stylesheet_link_tag("http://example.com/all.js", preload_links_header: true)
+    ```
+
+    *Alex Ghiculescu*

tools/rail_inspector/test/rail_inspector/changelog_test.rb

@@ -48,6 +48,12 @@ def test_header_ending_with_star_not_treated_as_author
     assert_equal 0, offenses.length
   end
 
+  def test_release_header_is_not_treated_as_offense
+    @changelog = changelog_fixture("action_view.md")
+
+    assert_equal 0, offenses.length
+  end
+
   def test_validate_authors
     assert_offense(<<~CHANGELOG)
       *   Fix issue in CHANGELOG linting