feat(checks): Add linters

checks/default.nix

@@ -0,0 +1,52 @@
+{
+  self,
+  nixpkgs,
+  deploy-rs,
+  system,
+  ...
+}:
+let
+  pkgs = nixpkgs.legacyPackages.${system};
+
+  runNuCheck =
+    {
+      name,
+      packages,
+      check,
+    }:
+    pkgs.stdenvNoCC.mkDerivation {
+      inherit name;
+
+      src = nixpkgs.lib.cleanSourceWith {
+        src = self;
+        filter = nixpkgs.lib.cleanSourceFilter;
+      };
+
+      dontPatch = true;
+      dontConfigure = true;
+      dontBuild = true;
+      dontInstall = true;
+      dontFixup = true;
+      doCheck = true;
+
+      checkInputs = nixpkgs.lib.singleton pkgs.nushell ++ packages;
+
+      checkPhase = ''
+        nu ${check}
+      '';
+    };
+in
+nixpkgs.lib.recursiveUpdate {
+  lints = runNuCheck {
+    name = "lints";
+
+    packages = [
+      pkgs.deadnix
+      pkgs.nixfmt-rfc-style
+      pkgs.shellcheck
+      pkgs.statix
+    ];
+
+    check = ./lints.nu;
+  };
+} (deploy-rs.lib.${system}.deployChecks self.deploy)

checks/lints.nu

@@ -0,0 +1,39 @@
+#!/usr/bin/env nu
+
+let shell_files = ls **/*.sh | get name
+let nix_files = ls **/*.nix | where name !~ "hardware-configuration.nix|_sources" | get name
+
+let linters = [
+  ([shellcheck] ++ $shell_files)
+  ([nixfmt --check --strict] ++ $nix_files)
+  ([deadnix --fail] ++ $nix_files)
+  ([statix check] ++ $nix_files)
+]
+
+mkdir $env.out
+
+def run-linter [linterArgs: list<string>] {
+  print $'Running ($linterArgs.0)...'
+
+  let exit_code = try {
+    ^$linterArgs.0 ...($linterArgs | skip 1)
+    $env.LAST_EXIT_CODE
+  } catch {|e| $e.exit_code}
+
+  [$linterArgs.0, $exit_code]
+}
+
+let results = $linters | each {|linter| run-linter $linter}
+
+print 'Linter results:'
+
+let success = $results | each {|result|
+  match $result.1 {
+    0 => {print $'(ansi green)($result.0)(ansi reset)'}
+    _ => {print $'(ansi red)($result.0)(ansi reset)'}
+  }
+
+  $result.1
+} | math sum
+
+exit $success

flake.nix

@@ -96,7 +96,7 @@
       #########
       # Tests #
       #########
-      checks = builtins.mapAttrs (system: deployLib: deployLib.deployChecks self.deploy) deploy-rs.lib;
+      checks.${system} = import ./checks (inputs // { inherit system; });
 
       ###########################
       # Garbage collection root #