ansible-galaxy - remove warning during collection install (#69541)

* ansible-galaxy - remove warning during collection install

If existing collections do not contain a MANIFEST.json, which is common
for collections under development that were not installed from Ansible
Galaxy, fall back to inspecting galaxy.yml rather than displaying a
warning.

A warning will still be displayed in neither a MANIFEST.json nor
galaxy.yml are present.

* Update unit tests

changelogs/fragments/ansible-galaxy-install-manifest-warning.yaml

@@ -0,0 +1,4 @@
+bugfixes:
+  - >
+    ansible-galaxy - hide warning during collection installation if other installed collections
+    do not contain a ``MANIFEST.json`` (https://github.com/ansible/ansible/issues/67490)

lib/ansible/galaxy/collection.py

@@ -605,7 +605,7 @@ def install_collections(collections, output_path, apis, validate_certs, ignore_e
     :param force: Re-install a collection if it has already been installed.
     :param force_deps: Re-install a collection as well as its dependencies if they have already been installed.
     """
-    existing_collections = find_existing_collections(output_path)
+    existing_collections = find_existing_collections(output_path, fallback_metadata=True)
 
     with _tempdir() as b_temp_path:
         display.display("Process install dependency map")

test/units/galaxy/test_collection_install.py

@@ -746,12 +746,34 @@ def test_install_collections_existing_without_force(collection_artifact, monkeyp
 
     # Filter out the progress cursor display calls.
     display_msgs = [m[1][0] for m in mock_display.mock_calls if 'newline' not in m[2] and len(m[1]) == 1]
-    assert len(display_msgs) == 4
-    # Msg1 is the warning about not MANIFEST.json, cannot really check message as it has line breaks which varies based
-    # on the path size
-    assert display_msgs[1] == "Process install dependency map"
-    assert display_msgs[2] == "Starting collection install process"
-    assert display_msgs[3] == "Skipping 'ansible_namespace.collection' as it is already installed"
+    assert len(display_msgs) == 3
+
+    assert display_msgs[0] == "Process install dependency map"
+    assert display_msgs[1] == "Starting collection install process"
+    assert display_msgs[2] == "Skipping 'ansible_namespace.collection' as it is already installed"
+
+    for msg in display_msgs:
+        assert 'WARNING' not in msg
+
+
+def test_install_missing_metadata_warning(collection_artifact, monkeypatch):
+    collection_path, collection_tar = collection_artifact
+    temp_path = os.path.split(collection_tar)[0]
+
+    mock_display = MagicMock()
+    monkeypatch.setattr(Display, 'display', mock_display)
+
+    for file in [b'MANIFEST.json', b'galaxy.yml']:
+        b_path = os.path.join(collection_path, file)
+        if os.path.isfile(b_path):
+            os.unlink(b_path)
+
+    collection.install_collections([(to_text(collection_tar), '*', None,)], to_text(temp_path),
+                                   [u'https://galaxy.ansible.com'], True, False, False, False, False)
+
+    display_msgs = [m[1][0] for m in mock_display.mock_calls if 'newline' not in m[2] and len(m[1]) == 1]
+
+    assert 'WARNING' in display_msgs[0]
 
 
 # Makes sure we don't get stuck in some recursive loop