fix: make repository key optional in galaxy.yml

examples/collections/broken_no_license/galaxy.yml

@@ -0,0 +1,10 @@
+---
+name: broken_no_license
+namespace: fixtures
+version: 1.2.3
+authors:
+  - John
+readme: ../README.md
+tags: ["tools"]
+description: Lorem ipsum
+repository: https://www.github.com/my_org/my_collection

examples/collections/broken_no_license/meta/runtime.yml

@@ -0,0 +1,2 @@
+---
+requires_ansible: ">=2.20"

examples/collections/broken_no_repo/galaxy.yml

@@ -0,0 +1,11 @@
+---
+name: broken_no_repo
+namespace: fixtures
+version: 1.2.3
+authors:
+  - John
+readme: ../README.md
+tags: ["tools"]
+description: Lorem ipsum
+license:
+  - MIT

examples/collections/broken_no_repo/meta/runtime.yml

@@ -0,0 +1,2 @@
+---
+requires_ansible: ">=2.20"

examples/collections/broken_no_runtime/galaxy.yml

@@ -8,3 +8,5 @@ readme: ../README.md
 tags: ["tools"]
 description: Lorem ipsum
 repository: https://www.github.com/my_org/my_collection
+license:
+  - MIT

src/ansiblelint/rules/galaxy.py

@@ -36,6 +36,8 @@ class GalaxyRule(AnsibleLintRule):
         "galaxy[version-missing]": "galaxy.yaml should have version tag.",
         "galaxy[no-runtime]": "meta/runtime.yml file not found.",
         "galaxy[invalid-dependency-version]": "Invalid collection metadata. Dependency version spec range is invalid",
+        "galaxy[no-repository]": "galaxy.yaml should have a repository key for publication to Galaxy. See https://docs.ansible.com/ansible/latest/dev_guide/collections_galaxy_meta.html",
+        "galaxy[no-license]": "galaxy.yaml should have a license or license_file key for publication to Galaxy. See https://docs.ansible.com/ansible/latest/dev_guide/collections_galaxy_meta.html",
     }
 
     def matchplay(self, file: Lintable, data: dict[str, Any]) -> list[MatchError]:
@@ -179,6 +181,26 @@ def matchplay(self, file: Lintable, data: dict[str, Any]) -> list[MatchError]:
                 ),
             )
 
+        # Check for repository key - recommended for Galaxy publication
+        if "repository" not in data:
+            results.append(
+                self.create_matcherror(
+                    message="galaxy.yaml should have a repository key for publication to Galaxy. See https://docs.ansible.com/ansible/latest/dev_guide/collections_galaxy_meta.html",
+                    tag="galaxy[no-repository]",
+                    filename=file,
+                ),
+            )
+
+        # Check for license or license_file key - recommended for Galaxy publication
+        if "license" not in data and "license_file" not in data:
+            results.append(
+                self.create_matcherror(
+                    message="galaxy.yaml should have a license or license_file key for publication to Galaxy. See https://docs.ansible.com/ansible/latest/dev_guide/collections_galaxy_meta.html",
+                    tag="galaxy[no-license]",
+                    filename=file,
+                ),
+            )
+
         return results
 
 
@@ -253,6 +275,16 @@ def test_galaxy_no_collection_version() -> None:
                 ["galaxy[no-runtime]"],
                 id="broken_no_runtime",
             ),
+            pytest.param(
+                "examples/collections/broken_no_license/galaxy.yml",
+                ["galaxy[no-license]"],
+                id="broken_no_license",
+            ),
+            pytest.param(
+                "examples/collections/broken_no_repo/galaxy.yml",
+                ["galaxy[no-repository]"],
+                id="broken_no_repo",
+            ),
         ),
     )
     def test_galaxy_rule(

src/ansiblelint/schemas/galaxy.json

@@ -876,8 +876,7 @@
     "version",
     "readme",
     "authors",
-    "description",
-    "repository"
+    "description"
   ],
   "title": "Ansible galaxy.yml Schema",
   "type": "object"