Ensure that yamllint config ignore entries are used (#1346)

* Ensure that yamllint config ignore entries are used.

* Linting.

* Change into examples/ for test.

This ensures that the top-level .yamllint config does not prevent some of the
errors to be reported in this file.

* More linting.

src/ansiblelint/rules/YamllintRule.py

@@ -63,6 +63,7 @@ class YamllintRule(AnsibleLintRule):
                 )
                 config_override = YamlLintConfig(file=file)
                 config_override.extend(config)
+                config = config_override
                 break
         _logger.debug("Effective yamllint rules used: %s", config.rules)
 
@@ -79,7 +80,9 @@ def matchyaml(self, file: Lintable) -> List["MatchError"]:
             return matches
 
         if YamllintRule.config:
-            for p in run_yamllint(file.content, YamllintRule.config):
+            for p in run_yamllint(
+                file.content, YamllintRule.config, filepath=file.path
+            ):
                 matches.append(
                     self.create_matcherror(
                         message=p.desc,

test/TestExamples.py

@@ -1,14 +1,22 @@
 """Assure samples produced desire outcomes."""
+import os
+
 import pytest
 
 from ansiblelint.runner import Runner
 
 
+@pytest.fixture
+def _change_into_examples_dir(request):
+    os.chdir('examples')
+    yield
+    os.chdir('..')
+
+
+@pytest.mark.usefixtures('_change_into_examples_dir')
 def test_example(default_rules_collection):
     """example.yml is expected to have 15 match errors inside."""
-    result = Runner(
-        'examples/playbooks/example.yml', rules=default_rules_collection
-    ).run()
+    result = Runner('playbooks/example.yml', rules=default_rules_collection).run()
     assert len(result) == 15