Make fix more resilient to syntax-check errors

Fixes: #4114

.github/workflows/tox.yml

@@ -71,7 +71,7 @@ jobs:
     env:
       # Number of expected test passes, safety measure for accidental skip of
       # tests. Update value if you add/remove tests.
-      PYTEST_REQPASS: 855
+      PYTEST_REQPASS: 856
     steps:
       - uses: actions/checkout@v4
         with:

examples/playbooks/4114/transform-with-missing-role-and-modules.transformed.yml

@@ -0,0 +1,13 @@
+---
+- name: Reproducer for bug 4114
+  hosts: localhost
+  roles:
+    - this_role_is_missing
+  tasks:
+    - name: Task referring to a missing module
+      this_module_does_not_exist:
+        foo: bar
+
+    - name: Use raw to echo
+      ansible.builtin.debug: # <-- this should be converted to fqcn
+        msg: some message!

examples/playbooks/4114/transform-with-missing-role-and-modules.yml

@@ -0,0 +1,13 @@
+---
+- name: Reproducer for bug 4114
+  hosts: localhost
+  roles:
+    - this_role_is_missing
+  tasks:
+    - name: Task referring to a missing module
+      this_module_does_not_exist:
+        foo: bar
+
+    - name: Use raw to echo
+      debug: # <-- this should be converted to fqcn
+        msg: some message!

src/ansiblelint/config.py

@@ -174,7 +174,12 @@ class Options:  # pylint: disable=too-many-instance-attributes
     ignore_file: Path | None = None
     max_tasks: int = 100
     max_block_depth: int = 20
-    nodeps: bool = bool(int(os.environ.get("ANSIBLE_LINT_NODEPS", "0")))
+
+    @property
+    def nodeps(self) -> bool:
+        """Returns value of nodeps feature."""
+        # We do not want this to be cached as it would affect our testings.
+        return bool(int(os.environ.get("ANSIBLE_LINT_NODEPS", "0")))
 
     def __post_init__(self) -> None:
         """Extra initialization logic."""

src/ansiblelint/rules/fqcn.py

@@ -6,12 +6,14 @@
 import sys
 from typing import TYPE_CHECKING, Any
 
+from ruamel.yaml.comments import CommentedSeq
+
 from ansiblelint.constants import LINE_NUMBER_KEY
 from ansiblelint.rules import AnsibleLintRule, TransformMixin
 from ansiblelint.utils import load_plugin
 
 if TYPE_CHECKING:
-    from ruamel.yaml.comments import CommentedMap, CommentedSeq
+    from ruamel.yaml.comments import CommentedMap
 
     from ansiblelint.errors import MatchError
     from ansiblelint.file_utils import Lintable
@@ -242,6 +244,8 @@ def transform(
                 current_action = match.message.split("`")[3]
                 new_action = match.message.split("`")[1]
             for _ in range(len(target_task)):
+                if isinstance(target_task, CommentedSeq):
+                    continue
                 k, v = target_task.popitem(False)
                 target_task[new_action if k == current_action else k] = v
             match.fixed = True

src/ansiblelint/rules/syntax_check.py

@@ -55,6 +55,14 @@ class KnownError:
             re.MULTILINE | re.S | re.DOTALL,
         ),
     ),
+    # "ERROR! the role 'this_role_is_missing' was not found in ROLE_INCLUDE_PATHS\n\nThe error appears to be in 'FILE_PATH': line 5, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  roles:\n    - this_role_is_missing\n      ^ here\n"
+    KnownError(
+        tag="specific",
+        regex=re.compile(
+            r"^ERROR! (?P<title>the role '.*' was not found in[^\n]*)'(?P<filename>[\w\/\.\-]+)': line (?P<line>\d+), column (?P<column>\d+)",
+            re.MULTILINE | re.S | re.DOTALL,
+        ),
+    ),
 )
 
 

src/ansiblelint/runner.py

@@ -393,7 +393,10 @@ def _get_ansible_syntax_check_matches(
                         filename = lintable
                     column = int(groups.get("column", 1))
 
-                    if pattern.tag == "unknown-module" and app.options.nodeps:
+                    if (
+                        pattern.tag in ("unknown-module", "specific")
+                        and app.options.nodeps
+                    ):
                         ignore_rc = True
                     else:
                         results.append(

test/test_transformer.py

@@ -28,8 +28,11 @@ def fixture_runner_result(
     config_options: Options,
     default_rules_collection: RulesCollection,
     playbook_str: str,
+    monkeypatch: pytest.MonkeyPatch,
 ) -> LintResult:
     """Fixture that runs the Runner to populate a LintResult for a given file."""
+    # needed for testing transformer when roles/modules are missing:
+    monkeypatch.setenv("ANSIBLE_LINT_NODEPS", "1")
     config_options.lintables = [playbook_str]
     result = get_matches(rules=default_rules_collection, options=config_options)
     return result
@@ -191,6 +194,13 @@ def fixture_runner_result(
             True,
             id="name_case_roles",
         ),
+        pytest.param(
+            "examples/playbooks/4114/transform-with-missing-role-and-modules.yml",
+            1,
+            True,
+            True,
+            id="4114",
+        ),
     ),
 )
 @mock.patch.dict(os.environ, {"ANSIBLE_LINT_WRITE_TMP": "1"}, clear=True)
@@ -210,12 +220,13 @@ def test_transformer(  # pylint: disable=too-many-arguments
     assert Lintable(playbook_str).is_owned_by_ansible() == is_owned_by_ansible
     playbook = Path(playbook_str)
     config_options.write_list = ["all"]
-    transformer = Transformer(result=runner_result, options=config_options)
-    transformer.run()
 
     matches = runner_result.matches
     assert len(matches) == matches_count
 
+    transformer = Transformer(result=runner_result, options=config_options)
+    transformer.run()
+
     orig_content = playbook.read_text(encoding="utf-8")
     if transformed:
         expected_content = playbook.with_suffix(