Fix for ansible 2.9 (#141)

* Fix for ansible 2.9

* Else not needed

src/pytest_ansible/units.py

@@ -119,14 +119,17 @@ def inject(start_path: Path) -> None:
  # e.g. ansible-galaxy collection install etc
 
  # Set the environment variable as courtesy for integration tests
+
+ envvar_name = determine_envvar()
  env_paths = os.pathsep.join(paths)
- logger.info("Setting ANSIBLE_COLLECTIONS_PATH to %s", env_paths)
- os.environ["ANSIBLE_COLLECTIONS_PATH"] = env_paths
+ logger.info("Setting %s to %s", envvar_name, env_paths)
+ os.environ[envvar_name] = env_paths
 
 
 def inject_only() -> None:
- """Inject the current ANSIBLE_COLLECTIONS_PATH."""
- env_paths = os.environ.get("ANSIBLE_COLLECTIONS_PATH", "")
+ """Inject the current ANSIBLE_COLLECTIONS_PATH(S)."""
+ envvar_name = determine_envvar()
+ env_paths = os.environ.get(envvar_name, "")
  path_list = env_paths.split(os.pathsep)
  for path in path_list:
  if path:
@@ -148,3 +151,17 @@ def acf_inject(paths: list[str]) -> None:
  logger.debug("_ACF configured paths: %s", acf._n_configured_paths)
  else:
  logger.debug("_ACF not available")
+
+
+def determine_envvar() -> str:
+ """Use the existence of the AnsibleCollectionFinder to determine
+ the ansible version.
+
+ ansible 2.9 did not have AnsibleCollectionFinder and did not support ANSIBLE_COLLECTIONS_PATH
+ later versions do.
+
+ :returns: The appropriate environment variable to use
+ """
+ if not HAS_COLLECTION_FINDER:
+ return "ANSIBLE_COLLECTIONS_PATHS"
+ return "ANSIBLE_COLLECTIONS_PATH"