Autolint

src/baudolo/backup/cli.py

@@ -100,7 +100,9 @@ def parse_args() -> argparse.Namespace:
     if bool(args.snapshot) != bool(args.snapshot_subject):
         p.error("--snapshot and --snapshot-subject must be given together")
     if args.snapshot and args.shutdown:
-        p.error("--shutdown is meaningless with --snapshot: containers are never stopped")
+        p.error(
+            "--shutdown is meaningless with --snapshot: containers are never stopped"
+        )
     if args.snapshot and args.hard_restart_projects:
         p.error(
             "--hard-restart-projects is meaningless with --snapshot: the flag exists "

tests/e2e/helpers/fixtures.py

@@ -1,4 +1,5 @@
 """Fixtures and paths the e2e suite builds its scenarios from."""
+
 from __future__ import annotations
 
 import shutil

tests/e2e/helpers/process.py

@@ -1,4 +1,5 @@
 """Process, docker and readiness helpers for the e2e suite."""
+
 from __future__ import annotations
 
 import subprocess

tests/e2e/snapshot_db_driver.py

@@ -25,7 +25,9 @@ GENERATION = f"{VERSIONS}/20260731"
 def shell(command: str) -> list[str]:
     proc = subprocess.run(command, shell=True, capture_output=True, text=True)
     if proc.returncode != 0:
-        raise SnapshotError(f"{command} exited {proc.returncode}: {proc.stderr.strip()}")
+        raise SnapshotError(
+            f"{command} exited {proc.returncode}: {proc.stderr.strip()}"
+        )
     return proc.stdout.splitlines()
 
 

tests/e2e/snapshot_driver.py

@@ -22,7 +22,9 @@ EXPECT = sys.argv[3]
 def shell(command: str) -> list[str]:
     proc = subprocess.run(command, shell=True, capture_output=True, text=True)
     if proc.returncode != 0:
-        raise SnapshotError(f"{command} exited {proc.returncode}: {proc.stderr.strip()}")
+        raise SnapshotError(
+            f"{command} exited {proc.returncode}: {proc.stderr.strip()}"
+        )
     return proc.stdout.splitlines()
 
 
@@ -55,5 +57,8 @@ with volume_snapshot(KIND, SUBJECT, "e2e", run=shell) as resolve:
 
     root = Path(resolve(SUBJECT))
 
-check("the snapshot is removed afterwards", not root.exists() or not (root / "volumes").exists())
+check(
+    "the snapshot is removed afterwards",
+    not root.exists() or not (root / "volumes").exists(),
+)
 print("ALL OK", flush=True)

tests/e2e/test_e2e_snapshot.py

@@ -29,7 +29,7 @@ LOOP_FS = {
     "ext4": "mkdir -p /subject/docker",
 }
 # A container carries no /lib/modules, so modprobe fails even on a loaded module.
-ZFS_READY = '{ [ -c /dev/zfs ] || modprobe zfs 2>/dev/null; }; [ -c /dev/zfs ]'
+ZFS_READY = "{ [ -c /dev/zfs ] || modprobe zfs 2>/dev/null; }; [ -c /dev/zfs ]"
 
 
 def mount_script(fstype: str) -> str:
@@ -51,7 +51,13 @@ def zfs_usable() -> bool:
     """Whether this host's kernel can serve zfs to a privileged container."""
     proc = run(
         [
-            "docker", "run", "--rm", "--privileged", IMAGE, "sh", "-lc",
+            "docker",
+            "run",
+            "--rm",
+            "--privileged",
+            IMAGE,
+            "sh",
+            "-lc",
             f"apk add -q zfs >/dev/null 2>&1 && {ZFS_READY}",
         ],
         capture=True,
@@ -87,11 +93,20 @@ def drive(fstype: str, kind: str, expect: str) -> str:
     try:
         proc = run(
             [
-                "docker", "run", "--rm", "--privileged",
-                "--name", staged.name,
-                "-v", f"{staged / 'src'}:/src:ro",
-                "-v", f"{staged / 'driver.py'}:/driver.py:ro",
-                IMAGE, "sh", "-lc", script,
+                "docker",
+                "run",
+                "--rm",
+                "--privileged",
+                "--name",
+                staged.name,
+                "-v",
+                f"{staged / 'src'}:/src:ro",
+                "-v",
+                f"{staged / 'driver.py'}:/driver.py:ro",
+                IMAGE,
+                "sh",
+                "-lc",
+                script,
             ],
             capture=True,
             check=False,
@@ -99,7 +114,9 @@ def drive(fstype: str, kind: str, expect: str) -> str:
     finally:
         shutil.rmtree(staged, ignore_errors=True)
     if proc.returncode != 0:
-        raise AssertionError(f"{fstype}/{kind} driver failed:\n{proc.stdout}\n{proc.stderr}")
+        raise AssertionError(
+            f"{fstype}/{kind} driver failed:\n{proc.stdout}\n{proc.stderr}"
+        )
     return proc.stdout
 
 
@@ -125,7 +142,9 @@ class TestE2ESnapshot(unittest.TestCase):
                     "E2E_REQUIRE_FILESYSTEMS demands zfs, but this kernel provides no "
                     "zfs module; load it before running the suite"
                 )
-            self.skipTest("this kernel provides no zfs module, so no pool can be created")
+            self.skipTest(
+                "this kernel provides no zfs module, so no pool can be created"
+            )
         self.assert_freezes("zfs")
 
     def test_ext4_has_no_snapshot_and_says_so(self) -> None:

tests/e2e/test_e2e_snapshot_db.py

@@ -68,11 +68,20 @@ class TestE2ESnapshotDatabase(unittest.TestCase):
         try:
             proc = run(
                 [
-                    "docker", "run", "--rm", "--privileged",
-                    "--name", staged.name,
-                    "-v", f"{staged / 'src'}:/src:ro",
-                    "-v", f"{staged / 'driver.py'}:/driver.py:ro",
-                    IMAGE, "sh", "-lc", SCRIPT,
+                    "docker",
+                    "run",
+                    "--rm",
+                    "--privileged",
+                    "--name",
+                    staged.name,
+                    "-v",
+                    f"{staged / 'src'}:/src:ro",
+                    "-v",
+                    f"{staged / 'driver.py'}:/driver.py:ro",
+                    IMAGE,
+                    "sh",
+                    "-lc",
+                    SCRIPT,
                 ],
                 capture=True,
                 check=False,

tests/unit/backup/test_app_snapshot.py

@@ -12,6 +12,7 @@ from baudolo.backup.snapshot import volume_snapshot
 def stubbed_snapshot(kind: str, subject: str, tag: str):
     return volume_snapshot(kind, subject, tag, run=lambda command: [])
 
+
 ARGV = [
     "baudolo",
     "--compose-dir",

tests/unit/backup/test_cli.py

@@ -39,7 +39,9 @@ class TestSnapshotFlags(unittest.TestCase):
             parse("--snapshot", "ext4", "--snapshot-subject", "/var/lib/docker")
 
     def test_zfs_is_accepted(self) -> None:
-        self.assertEqual(parse("--snapshot", "zfs", "--snapshot-subject", "/d").snapshot, "zfs")
+        self.assertEqual(
+            parse("--snapshot", "zfs", "--snapshot-subject", "/d").snapshot, "zfs"
+        )
 
     def test_shutdown_is_rejected_because_nothing_is_stopped(self) -> None:
         with self.assertRaises(SystemExit):

tests/unit/backup/test_snapshot.py

@@ -35,11 +35,15 @@ class TestBtrfs(unittest.TestCase):
         run = Runner()
         with volume_snapshot("btrfs", "/var/lib/docker", "20260731", run=run):
             pass
-        self.assertEqual(run.calls[-1], "btrfs subvolume delete /var/lib/docker/.baudolo-20260731")
+        self.assertEqual(
+            run.calls[-1], "btrfs subvolume delete /var/lib/docker/.baudolo-20260731"
+        )
 
     def test_it_maps_a_volume_path_into_the_snapshot(self) -> None:
         run = Runner()
-        with volume_snapshot("btrfs", "/var/lib/docker", "20260731", run=run) as resolve:
+        with volume_snapshot(
+            "btrfs", "/var/lib/docker", "20260731", run=run
+        ) as resolve:
             self.assertEqual(
                 resolve("/var/lib/docker/volumes/postgres_data/_data"),
                 "/var/lib/docker/.baudolo-20260731/volumes/postgres_data/_data",
@@ -47,7 +51,9 @@ class TestBtrfs(unittest.TestCase):
 
     def test_it_keeps_the_trailing_slash_rsync_reads_as_contents(self) -> None:
         run = Runner()
-        with volume_snapshot("btrfs", "/var/lib/docker", "20260731", run=run) as resolve:
+        with volume_snapshot(
+            "btrfs", "/var/lib/docker", "20260731", run=run
+        ) as resolve:
             self.assertEqual(
                 resolve("/var/lib/docker/volumes/postgres_data/_data/"),
                 "/var/lib/docker/.baudolo-20260731/volumes/postgres_data/_data/",
@@ -102,14 +108,20 @@ class TestRejections(unittest.TestCase):
 
     def test_a_path_outside_the_subject_is_rejected(self) -> None:
         run = Runner()
-        with volume_snapshot("btrfs", "/var/lib/docker", "20260731", run=run) as resolve:
+        with volume_snapshot(
+            "btrfs", "/var/lib/docker", "20260731", run=run
+        ) as resolve:
             with self.assertRaises(SnapshotError):
                 resolve("/etc/passwd")
 
     def test_the_subject_itself_resolves_to_the_snapshot_root(self) -> None:
         run = Runner()
-        with volume_snapshot("btrfs", "/var/lib/docker", "20260731", run=run) as resolve:
-            self.assertEqual(resolve("/var/lib/docker"), "/var/lib/docker/.baudolo-20260731")
+        with volume_snapshot(
+            "btrfs", "/var/lib/docker", "20260731", run=run
+        ) as resolve:
+            self.assertEqual(
+                resolve("/var/lib/docker"), "/var/lib/docker/.baudolo-20260731"
+            )
 
 
 class Busy(Runner):