Avoid deprecated-bare-vars false positive with file paths

Fixes: #3646

examples/playbooks/rule-deprecated-bare-vars-fail.yml

@@ -39,12 +39,6 @@
         msg: "{{ item }}"
       with_dict: my_dict
 
-    ### Testing with_dict with a default empty dictionary
-    - name: Use with_dict loop using variable and default
-      ansible.builtin.debug:
-        msg: "{{ item.key }} - {{ item.value }}"
-      with_dict: uwsgi_ini | default({})
-
     - name: Use with_nested loop using bare variable
       ansible.builtin.debug:
         msg: "{{ item.0 }} {{ item.1 }}"

examples/playbooks/rule-deprecated-bare-vars-pass.yml

@@ -166,3 +166,12 @@
       with_items: >-
         {%- set ns = [1, 1, 2] -%}
         {{- ns.keys | unique -}}
+
+    - name: Reproduce bug 3646
+      ansible.builtin.file:
+        path: "{{ item.path }}"
+        state: directory
+        mode: "{{ item.mode }}"
+      with_community.general.filetree:
+        - "../templates/SpaceVim.d/"
+      when: item.state == "directory" and ".git" not in item.path

src/ansiblelint/rules/deprecated_bare_vars.py

@@ -27,7 +27,7 @@
 from typing import TYPE_CHECKING, Any
 
 from ansiblelint.rules import AnsibleLintRule
-from ansiblelint.text import has_glob, has_jinja
+from ansiblelint.text import has_glob, has_jinja, is_fqcn_or_name
 
 if TYPE_CHECKING:
     from ansiblelint.file_utils import Lintable
@@ -84,7 +84,11 @@ def _matchvar(
         task: dict[str, Any],
         loop_type: str,
     ) -> bool | str:
-        if isinstance(varstring, str) and not has_jinja(varstring):
+        if (
+            isinstance(varstring, str)
+            and not has_jinja(varstring)
+            and is_fqcn_or_name(varstring)
+        ):
             valid = loop_type == "with_fileglob" and bool(
                 has_jinja(varstring) or has_glob(varstring),
             )
@@ -121,4 +125,4 @@ def test_use_bare_negative() -> None:
         failure = "examples/playbooks/rule-deprecated-bare-vars-fail.yml"
         bad_runner = Runner(failure, rules=collection)
         errs = bad_runner.run()
-        assert len(errs) == 12
+        assert len(errs) == 11