fix(site-publish): close split migration boundaries

Authored-By: OpenAI (GPT-5) <noreply@openai.com>

tests/test_contract.py

@@ -230,6 +230,16 @@ class ConfigContractTests(unittest.TestCase):
             with self.assertRaisesRegex(ConfigError, "build input contains symlink"):
                 validate_artifact_inputs(root, cfg)
 
+    def test_artifact_root_symlink_is_rejected_before_resolution(self):
+        cfg = normalize_site_config(self.raw, "baseline.fritzlab.net")
+        with tempfile.TemporaryDirectory() as tmp:
+            root = Path(tmp)
+            (root / "dist-real").mkdir()
+            (root / "dist").symlink_to(root / "dist-real")
+            (root / "portal" / "build").mkdir(parents=True)
+            with self.assertRaisesRegex(ConfigError, "content_dir contains symlink component"):
+                validate_artifact_inputs(root, cfg)
+
 
 class GenerationTests(unittest.TestCase):
     def render(self, raw):
@@ -263,6 +273,17 @@ class GenerationTests(unittest.TestCase):
         self.assertNotIn("passhostheader", files["manifests/ingress-portal.yaml"])
         self.assertIn("baseline-dist.web.sjc001.fritzlab.net", files["manifests/service-distributions.yaml"])
 
+    def test_yaml_ambiguous_artifact_name_stays_a_string_annotation(self):
+        raw = fixture("split-site.yaml")
+        raw["artifacts"][0]["name"] = "yes"
+        raw["routes"][0]["artifact"] = "yes"
+        tmp, _, files = self.render(raw)
+        self.addCleanup(tmp.cleanup)
+        ingress = yaml.safe_load(files["manifests/ingress-portal.yaml"])
+        self.assertEqual(
+            "yes", ingress["metadata"]["annotations"]["site-publish.fritzlab.net/artifact"],
+        )
+
     def test_generation_is_deterministic_when_input_lists_are_reversed(self):
         raw = fixture("split-site.yaml")
         first_tmp, _, first = self.render(raw)
@@ -286,12 +307,14 @@ class GenerationTests(unittest.TestCase):
             self.assertFalse(stale.exists())
 
     def test_legacy_names_and_garage_s3_target_are_preserved(self):
-        tmp, _, files = self.render(fixture("legacy-site.yaml"))
+        tmp, app_dir, files = self.render(fixture("legacy-site.yaml"))
         self.addCleanup(tmp.cleanup)
         self.assertIn("manifests/service.yaml", files)
         self.assertIn("manifests/ingress.yaml", files)
         self.assertIn("garage-s3.storage.svc.k8s.sjc001.fritzlab.net", files["manifests/service.yaml"])
         self.assertNotIn("passhostheader", files["manifests/ingress.yaml"])
+        self.assertNotIn("site-publish.fritzlab.net", files["manifests/ingress.yaml"])
+        self.assertEqual({}, deploy.previous_route_contracts(app_dir))
 
 
 class BuildTests(unittest.TestCase):
@@ -429,12 +452,93 @@ class PublishingTests(unittest.TestCase):
                 immutable_publish.call_args.args[2]["cache_control"],
             )
 
+    def test_root_move_preserves_only_actual_retired_immutable_prefix(self):
+        cfg = normalize_site_config(fixture("split-site.yaml"), "baseline.fritzlab.net")
+        artifact = next(item for item in cfg["artifacts"] if item["name"] == "distributions")
+        route = {**next(item for item in cfg["routes"] if item["artifact"] == "distributions"),
+                 "path": "/"}
+        with tempfile.TemporaryDirectory() as tmp:
+            root = Path(tmp)
+            html = root / artifact["build_dir"]
+            (html / "releases").mkdir(parents=True)
+            (html / "channels").mkdir()
+            (html / "docs" / "releases").mkdir(parents=True)
+            (html / "channels" / "stable.json").write_text("channel")
+            (html / "docs" / "releases" / "index.html").write_text("mutable")
+            commands = []
+            with patch.dict(os.environ, {
+                "DIST_S3_ACCESS_KEY": "dist-key", "DIST_S3_SECRET_KEY": "dist-secret"
+            }, clear=False), patch.object(
+                deploy, "run", side_effect=lambda command, **_: commands.append(command)
+            ):
+                deploy.s3_sync(artifact, route, root, previous_contract={
+                    "path": "/foo", "access": "public", "artifact": "distributions",
+                    "immutable_paths": ["releases"],
+                })
+            rendered = [" ".join(command) for command in commands]
+            self.assertTrue(all("foo/releases/*" in command for command in rendered[:2]))
+            self.assertTrue(all("*/releases/*" not in command for command in rendered))
+
+    def test_protected_bucket_cannot_become_public_across_deployments(self):
+        cfg = normalize_site_config(fixture("split-site.yaml"), "baseline.fritzlab.net")
+        previous = {
+            "baseline-dist": {
+                "path": "/dist", "access": "protected", "artifact": "old-name",
+                "immutable_paths": ["releases"],
+            }
+        }
+        with self.assertRaisesRegex(RuntimeError, "cannot become public while reusing protected"):
+            deploy.validate_route_migrations(cfg, previous)
+        renamed = copy.deepcopy(cfg)
+        artifact = next(item for item in renamed["artifacts"] if item["name"] == "distributions")
+        artifact["name"] = "downloads"
+        route = next(item for item in renamed["routes"] if item["artifact"] == "distributions")
+        route["artifact"] = "downloads"
+        with self.assertRaisesRegex(RuntimeError, "cannot become public while reusing protected"):
+            deploy.validate_route_migrations(renamed, previous)
+        previous = {"retired-protected-bucket": previous["baseline-dist"]}
+        deploy.validate_route_migrations(cfg, previous)
+
+    def test_protected_split_bucket_cannot_become_legacy_public(self):
+        cfg = normalize_site_config(fixture("legacy-site.yaml"), "baseline.fritzlab.net")
+        previous = {
+            "baseline.fritzlab.net": {
+                "path": "/portal", "access": "protected", "artifact": "portal",
+                "immutable_paths": [],
+            }
+        }
+        with self.assertRaisesRegex(RuntimeError, "cannot become public while reusing protected"):
+            deploy.validate_route_migrations(cfg, previous)
+
+    def test_removed_immutable_rule_preserves_prior_keys(self):
+        cfg = normalize_site_config(fixture("split-site.yaml"), "baseline.fritzlab.net")
+        artifact = next(item for item in cfg["artifacts"] if item["name"] == "distributions")
+        artifact["cache_rules"] = [
+            rule for rule in artifact["cache_rules"] if rule["path"] != "releases"
+        ]
+        route = next(item for item in cfg["routes"] if item["artifact"] == "distributions")
+        with tempfile.TemporaryDirectory() as tmp:
+            html = Path(tmp)
+            filters = deploy.retired_immutable_filters(artifact, route, html, {
+                "path": "/dist", "access": "public", "artifact": "distributions",
+                "immutable_paths": ["releases"],
+            })
+            self.assertEqual(["--exclude", "releases/*"], filters)
+            (html / "releases").mkdir()
+            (html / "releases" / "replacement.js").write_text("mutable")
+            with self.assertRaisesRegex(RuntimeError, "collides with retired immutable"):
+                deploy.retired_immutable_filters(artifact, route, html, {
+                    "path": "/dist", "access": "public", "artifact": "distributions",
+                    "immutable_paths": ["releases"],
+                })
+
     def test_later_route_immutable_failure_stops_all_mutable_publication(self):
         cfg = normalize_site_config(fixture("split-site.yaml"), "baseline.fritzlab.net")
         with tempfile.TemporaryDirectory() as tmp:
             root = Path(tmp)
             with patch.object(deploy, "validate_publication_environment"), \
-                    patch.object(deploy, "validate_artifact_output"), patch.object(
+                    patch.object(deploy, "validate_artifact_output"), \
+                    patch.object(deploy, "clone_apps", return_value=root / "apps"), patch.object(
                         deploy, "publish_route_immutables",
                         side_effect=[None, RuntimeError("immutable failed")],
                     ) as immutable_publish, patch.object(deploy, "s3_sync") as mutable_sync, \