apply treefmt

README.md

@@ -1,6 +1,7 @@
 # systemd-vaultd - load vault credentials with systemd units
 
 > Mostly written in a train
+
 - Jörg Thalheim
 
 systemd-vaultd is a proxy between systemd and [vault agent](https://vaultproject.io).

flake.nix

@@ -15,13 +15,10 @@
       imports = [
         ./nix/checks/flake-module.nix
       ];
-      perSystem = {
-        config,
-        self',
-        inputs',
-        pkgs,
-        system,
-        ...
+      perSystem =
+        { config
+        , pkgs
+        , ...
         }: {
           packages.default = pkgs.callPackage ./default.nix { };
           devShells.default = pkgs.mkShellNoCC {

nix/checks/dev-vault-server.nix

@@ -1,8 +1,6 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
+{ config
+, pkgs
+, ...
 }: {
   environment.systemPackages = [ pkgs.vault ];
   services.vault = {

nix/checks/flake-module.nix

@@ -2,12 +2,9 @@
   imports = [
     inputs.treefmt-nix.flakeModule
   ];
-  perSystem = {
-    self',
-    inputs',
-    pkgs,
-    system,
-    ...
+  perSystem =
+    { pkgs
+    , ...
     }: {
       treefmt = {
         # Used to find the project root
@@ -45,6 +42,7 @@
             includes = [ "*.py" ];
           };
         };
+      };
 
       checks =
         let
@@ -56,13 +54,4 @@
           inherit (nixosTests) unittests vault-agent systemd-vaultd;
         };
     };
-
-    checks = let
-      nixosTests = pkgs.callPackages ./nix/checks/nixos-test.nix {
-        makeTest = import (pkgs.path + "/nixos/tests/make-test-python.nix");
-      };
-    in {
-      inherit (nixosTests) unittests vault-agent systemd-vaultd;
-    };
-  };
 }

nix/checks/nixos-test.nix

@@ -1,13 +1,15 @@
-{
-  makeTest ? import <nixpkgs/nixos/tests/make-test-python.nix>,
-  pkgs ? (import <nixpkgs> {}),
-}: let
+{ makeTest ? import <nixpkgs/nixos/tests/make-test-python.nix>
+, pkgs ? (import <nixpkgs> { })
+,
+}:
+let
   makeTest' = args:
     makeTest args {
       inherit pkgs;
       inherit (pkgs) system;
     };
-in {
+in
+{
   vault-agent = makeTest' (import ./vault-agent-test.nix);
   systemd-vaultd = makeTest' (import ./systemd-vaultd-test.nix);
   unittests = makeTest' {

nix/checks/systemd-vaultd-test.nix

@@ -1,9 +1,9 @@
 {
   name = "systemd-vaultd";
-  nodes.server = {
-    config,
-    pkgs,
-    ...
+  nodes.server =
+    { config
+    , pkgs
+    , ...
     }: {
       imports = [
         ../modules/vault-agent.nix

nix/checks/unittests.nix

@@ -1,10 +1,11 @@
-{
-  writeShellScript,
-  python3,
-  pkgs,
-  lib,
-  coreutils,
-}: let
+{ writeShellScript
+, python3
+, pkgs
+, lib
+, coreutils
+,
+}:
+let
   systemd-vaultd = pkgs.callPackage ../../default.nix { };
   systemd = pkgs.callPackage ../pkgs/systemd.nix { };
 in

nix/checks/vault-agent-test.nix

@@ -1,9 +1,8 @@
 {
   name = "vault-agent";
-  nodes.server = {
-    config,
-    pkgs,
-    ...
+  nodes.server =
+    { config
+    , ...
     }: {
       imports = [
         ./dev-vault-server.nix

nix/modules/systemd-vaultd.nix

@@ -1,11 +1,10 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}: let
+{ pkgs
+, ...
+}:
+let
   systemd-vaultd = pkgs.callPackage ../../default.nix { };
-in {
+in
+{
   imports = [
     ./vault-secrets.nix
   ];

nix/modules/vault-agent.nix

@@ -1,9 +1,9 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}: let
+{ config
+, lib
+, pkgs
+, ...
+}:
+let
   cfg = config.services.vault;
   settingsFormat = pkgs.formats.json { };
 
@@ -58,7 +58,8 @@
       };
     };
   };
-in {
+in
+{
   options.services.vault.agents = lib.mkOption {
     default = { };
     description = "Instances of vault agent";
@@ -72,7 +73,8 @@ in {
     });
   };
   config = {
-    systemd.services = lib.mapAttrs' (name: instanceCfg:
+    systemd.services = lib.mapAttrs'
+      (name: instanceCfg:
         lib.nameValuePair "vault-agent-${name}" {
           after = [ "network.target" ];
           wantedBy = [ "multi-user.target" ];

nix/modules/vault-secrets.nix

@@ -1,9 +1,9 @@
-{
-  lib,
-  config,
-  pkgs,
-  ...
-}: let
+{ lib
+, config
+, pkgs
+, ...
+}:
+let
   secretType = serviceName:
     lib.types.submodule ({ config, ... }: {
       options = {
@@ -59,19 +59,22 @@
 
   vaultTemplates = config:
     (lib.mapAttrsToList
-      (serviceName: service:
+      (serviceName: _service:
         getSecretTemplate serviceName services.${serviceName}.vault)
-      (lib.filterAttrs (n: v: v.vault.secrets != {} && v.vault.agent == config._module.args.name) services))
+      (lib.filterAttrs (_n: v: v.vault.secrets != { } && v.vault.agent == config._module.args.name) services))
     ++ (lib.mapAttrsToList
-      (serviceName: service:
+      (serviceName: _service:
         getEnvironmentTemplate serviceName services.${serviceName}.vault)
-      (lib.filterAttrs (n: v: v.vault.environmentTemplate != null && v.vault.agent == config._module.args.name) services));
-in {
+      (lib.filterAttrs (_n: v: v.vault.environmentTemplate != null && v.vault.agent == config._module.args.name) services));
+in
+{
   options = {
     systemd.services = lib.mkOption {
-      type = lib.types.attrsOf (lib.types.submodule ({config, ...}: let
+      type = lib.types.attrsOf (lib.types.submodule ({ config, ... }:
+        let
           serviceName = config._module.args.name;
-      in {
+        in
+        {
           options.vault = {
             changeAction = lib.mkOption {
               description = ''
@@ -117,9 +120,11 @@ in {
               };
             };
           };
-        config = let
+          config =
+            let
               mkIfHasEnv = lib.mkIf (config.vault.environmentTemplate != null);
-        in {
+            in
+            {
               after = mkIfHasEnv [ "${serviceName}-envfile.service" ];
               bindsTo = mkIfHasEnv [ "${serviceName}-envfile.service" ];
 
@@ -140,14 +145,17 @@ in {
 
   config = {
     # we cannot use `systemd.services` here since this would create infinite recursion
-    systemd.packages = let
-      servicesWithEnv = builtins.attrNames (lib.filterAttrs (n: v: v.vault.environmentTemplate != null) services);
-    in [
+    systemd.packages =
+      let
+        servicesWithEnv = builtins.attrNames (lib.filterAttrs (_n: v: v.vault.environmentTemplate != null) services);
+      in
+      [
         (pkgs.runCommand "env-services" { }
           (''
             mkdir -p $out/lib/systemd/system
           ''
-          + (lib.concatMapStringsSep "\n" (service: ''
+          + (lib.concatMapStringsSep "\n"
+            (service: ''
               cat > $out/lib/systemd/system/${service}-envfile.service <<EOF
               [Unit]
               Before=${service}.service

nix/pkgs/systemd.nix

@@ -1,6 +1,6 @@
-{
-  systemd,
-  fetchpatch,
+{ systemd
+, fetchpatch
+,
 }:
 systemd.overrideAttrs (old: {
   patches =

pyproject.toml

@@ -0,0 +1,20 @@
+[tool.ruff]
+line-length = 88
+
+select = ["E", "F", "I"]
+ignore = [ "E501" ]
+
+[tool.mypy]
+python_version = "3.10"
+warn_redundant_casts = true
+disallow_untyped_calls = true
+disallow_untyped_defs = true
+no_implicit_optional = true
+
+[[tool.mypy.overrides]]
+module = "setuptools.*"
+ignore_missing_imports = true
+
+[[tool.mypy.overrides]]
+module = "pytest.*"
+ignore_missing_imports = true

tests/command.py

@@ -3,8 +3,8 @@
 import os
 import signal
 import subprocess
-from typing import IO, Any, Dict, Iterator, List, Union
 from pathlib import Path
+from typing import IO, Any, Dict, Iterator, List, Union
 
 import pytest
 

tests/random_service.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
+import json
 import random
 import string
-import json
 from dataclasses import dataclass
 from pathlib import Path
 

tests/systemd_vaultd.py

@@ -1,9 +1,10 @@
 #!/usr/bin/env python3
 
 import os
-import pytest
 from pathlib import Path
 from typing import Optional
+
+import pytest
 from command import run
 
 BIN: Optional[Path] = None

tests/tempdir.py

@@ -1,10 +1,11 @@
 #!/usr/bin/env python3
 
-import pytest
-from tempfile import TemporaryDirectory
 from pathlib import Path
+from tempfile import TemporaryDirectory
 from typing import Iterator
 
+import pytest
+
 
 @pytest.fixture
 def tempdir() -> Iterator[Path]:

tests/test_blocking_secret.py

@@ -1,6 +1,6 @@
 import subprocess
-from pathlib import Path
 import time
+from pathlib import Path
 
 from command import Command
 from random_service import random_service

tests/test_socket_activation.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
-import time
 import subprocess
+import time
 from pathlib import Path
 
 from command import Command, run