introduce ruff formatting

Author: missytake

.github/workflows/ci.yaml

@@ -0,0 +1,20 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  python:
+    name: Lint Python
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install black
+        run: pip install ruff
+      - name: Check style
+        run: ruff format --quiet --line-length 120 --diff */*.py *.py
+      - name: Lint
+        run: ruff check */*.py *.py

pyinfra_borgbackup/__init__.py

@@ -56,9 +56,7 @@ def deploy_borgbackup(
     if borg_repo.startswith("hetzner-backup:"):
         files.put(
             name="create SSH config",
-            src=importlib.resources.files(__package__)
-            .joinpath("dot_ssh", "config")
-            .open("rb"),
+            src=importlib.resources.files(__package__).joinpath("dot_ssh", "config").open("rb"),
             dest="/root/.ssh/config",
             user="root",
             group="root",
@@ -113,8 +111,8 @@ def deploy_borgbackup(
         src=importlib.resources.files(__package__).joinpath("borgbackup.timer.j2"),
         dest="/etc/systemd/system/borgbackup.timer",
         mode="644",
-        minute = str(random.randint(0, 59)),
-        hour = str(random.randint(0, 4)),
+        minute=str(random.randint(0, 59)),
+        hour=str(random.randint(0, 4)),
     )
     systemd.service(
         name="Setup borgbackup timer",

pyinfra_borgbackup/backup-pre.py

@@ -5,7 +5,7 @@
 
 
 def cmd(command: str) -> int:
-    """Run a command and return its exit code. """
+    """Run a command and return its exit code."""
     return os.waitstatus_to_exitcode(os.system(command))
 
 
@@ -27,8 +27,6 @@ def cmd(command: str) -> int:
     if user == "root":
         returncode = cmd(f"systemctl {args.command} {services[user]}")
     else:
-        returncode = cmd(
-            f"su -l {user} -c 'systemctl --user {args.command} {services[user]}'"
-        )
+        returncode = cmd(f"su -l {user} -c 'systemctl --user {args.command} {services[user]}'")
     if returncode != 0:
         print(f"WARNING: Failed to {args.command} {services[user]} as {user} user")