[Fix rubocop#12835] Allow global offenses to be disabled by directive…

… comments

`Naming/FileName` now returns global offenses but there are quite a few projects that
disable the cop with a comment. The change to global offenses broke that behaviour.

changelog/fix_global_offenses_directive_comments.md

@@ -0,0 +1 @@
+* [#12835](https://github.com/rubocop/rubocop/issues/12835): Allow global offenses to be disabled by directive comments. ([@earlopain][])

lib/rubocop/cop/base.rb

@@ -186,7 +186,9 @@ def message(_range = nil)
       def add_global_offense(message = nil, severity: nil)
         severity = find_severity(nil, severity)
         message = find_message(nil, message)
-        current_offenses << Offense.new(severity, Offense::NO_LOCATION, message, name, :unsupported)
+        range = Offense::NO_LOCATION
+        status = enabled_line?(range.line) ? :unsupported : :disabled
+        current_offenses << Offense.new(severity, range, message, name, status)
       end
 
       # Adds an offense on the specified range (or node with an expression)

spec/rubocop/cli_spec.rb

@@ -404,6 +404,25 @@ def and_with_args
         $stdout.string.include?('F:  2:  7: Lint/Syntax: unexpected token tINTEGER')
       ).to be(true)
     end
+
+    it '`Naming/FileName` must be be disabled for global offenses' do
+      create_file('Example.rb', <<~RUBY)
+        # rubocop:disable Naming/FileName
+      RUBY
+
+      expect(cli.run(['--format', 'simple', 'Example.rb'])).to eq(1)
+      expect($stdout.string.include?('Naming/FileName')).to be(false)
+    end
+
+    it '`Naming/FileName` must be be enabled if directive comment is on unrelated line' do
+      create_file('Example.rb', <<~RUBY)
+        # Prelude
+        # rubocop:disable Naming/FileName
+      RUBY
+
+      expect(cli.run(['--format', 'simple', 'Example.rb'])).to eq(1)
+      expect($stdout.string.include?('Naming/FileName')).to be(true)
+    end
   end
 
   describe 'rubocop:disable comment' do