Auto create data folder

tests/test_deploy.py

@@ -14,6 +14,12 @@ import unittest
 @unittest.skipUnless(shutil.which("rsync") and shutil.which("flock"), "deployment tools are not installed")
 class DeploymentTests(unittest.TestCase):
     def test_deploy_preserves_runtime_and_archive_and_restarts_service(self):
+        self._run_deployment(archive_exists=True)
+
+    def test_deploy_creates_archive_before_restarting_service(self):
+        self._run_deployment(archive_exists=False)
+
+    def _run_deployment(self, *, archive_exists):
         workflow = (Path(__file__).resolve().parents[1] / ".gitea/workflows/deploy.yml").read_text()
         deploy_step = workflow.split("- name: Deploy and restart\n", 1)[1]
         script = textwrap.dedent(deploy_step.split("run: |\n", 1)[1])
@@ -34,6 +40,8 @@ class DeploymentTests(unittest.TestCase):
                 ".venv/keep.txt": "runtime venv",
                 ".git/keep.txt": "existing checkout metadata",
             }
+            if not archive_exists:
+                del protected["data/archive/date=2026-11-01/samples.parquet"]
             for relative, content in protected.items():
                 target = deployment / relative
                 target.parent.mkdir(parents=True, exist_ok=True)
@@ -47,7 +55,7 @@ class DeploymentTests(unittest.TestCase):
             runtime.chmod(0o755)
             mocks = {
                 "sudo": '#!/bin/sh\n[ "$1" = "-n" ] || exit 99\nshift\nexec "$@"\n',
-                "systemctl": '#!/bin/sh\nprintf "%s\\n" "$*" >> "$SOLAR_DEPLOY_TEST_LOG"\nif [ "$1" = show ]; then printf "0\\n"; fi\n',
+                "systemctl": '#!/bin/sh\nif [ "$1" = restart ] && [ ! -d "$DEPLOY_PATH/data/archive" ]; then echo "Archive directory is missing before service restart" >&2; exit 1; fi\nprintf "%s\\n" "$*" >> "$SOLAR_DEPLOY_TEST_LOG"\nif [ "$1" = show ]; then printf "0\\n"; fi\n',
                 "sleep": "#!/bin/sh\nexit 0\n",
                 "curl": '#!/bin/sh\nprintf "curl %s\\n" "$*" >> "$SOLAR_DEPLOY_TEST_LOG"\n',
             }
@@ -61,6 +69,10 @@ class DeploymentTests(unittest.TestCase):
                    "HEALTH_URL": "https://rpioffice.nest.lutran.ch/solar-relay/healthz"}
             result = subprocess.run(["bash", "-c", script], cwd=checkout, env=env, capture_output=True, text=True, timeout=15)
             self.assertEqual(result.returncode, 0, result.stderr)
+            self.assertTrue((deployment / "data/archive").is_dir())
+            if not archive_exists:
+                for relative in ("data", "data/archive"):
+                    self.assertEqual((deployment / relative).stat().st_mode & 0o777, 0o700)
             self.assertTrue((deployment / "solar_relay/new.py").exists())
             self.assertFalse((deployment / "obsolete.py").exists())
             for relative, content in protected.items():