Avoid running code on ansiblelint.config import (#1870)

Author: ssbarnea

src/ansiblelint/config.py

@@ -162,7 +162,3 @@ def ansible_version(version: str = "") -> Version:
             )
             sys.exit(ANSIBLE_MISSING_RC)
     return Version(version)
-
-
-if ansible_collections_path() in os.environ:
-    collection_list = os.environ[ansible_collections_path()].split(":")

src/ansiblelint/prerun.py

@@ -13,12 +13,7 @@
 import tenacity
 from packaging import version
 
-from ansiblelint.config import (
-    ansible_collections_path,
-    collection_list,
-    options,
-    parse_ansible_version,
-)
+from ansiblelint.config import ansible_collections_path, options, parse_ansible_version
 from ansiblelint.constants import (
     ANSIBLE_DEFAULT_ROLES_PATH,
     ANSIBLE_MIN_VERSION,
@@ -309,6 +304,10 @@ def _prepare_ansible_paths() -> None:
     """Configure Ansible environment variables."""
     library_paths: List[str] = []
     roles_path: List[str] = []
+    collection_list: List[str] = []
+
+    if ansible_collections_path() in os.environ:
+        collection_list = os.environ[ansible_collections_path()].split(":")
 
     for path_list, path in (
         (library_paths, "plugins/modules"),