Obviate check-flake (#61)

.github/workflows/ci.yaml

@@ -20,9 +20,13 @@ jobs:
           nix develop -j 4 -c echo
       - name: Flake checks
         run: |
+          # Because 'nix flake check' is not system-aware
+          # See https://srid.ca/haskell-template/checks
+          nix run nixpkgs#sd 'systems = nixpkgs.lib.systems.flakeExposed' 'systems = [ "x86_64-linux" ]' flake.nix
+
           # Sandbox must be disabled due to HLS,
           # https://github.com/haskell/haskell-language-server/issues/3128
-          nix --option sandbox false build .#check --no-link -L
+          nix --option sandbox false flake check -L
       # TODO: Remove after https://github.com/srid/haskell-flake/issues/19
       - name: Hlint
         run: |

flake.lock

@@ -1,20 +1,5 @@
 {
   "nodes": {
-    "check-flake": {
-      "locked": {
-        "lastModified": 1662502605,
-        "narHash": "sha256-jAT55UhabAxLAVGanxjnNdzH2/oX2ZjLsL4i2jPIP+g=",
-        "owner": "srid",
-        "repo": "check-flake",
-        "rev": "48a17393ed4fcd523399d6602c283775b5127295",
-        "type": "github"
-      },
-      "original": {
-        "owner": "srid",
-        "repo": "check-flake",
-        "type": "github"
-      }
-    },
     "flake-parts": {
       "inputs": {
         "nixpkgs": [
@@ -68,7 +53,6 @@
     },
     "root": {
       "inputs": {
-        "check-flake": "check-flake",
         "flake-parts": "flake-parts",
         "haskell-flake": "haskell-flake",
         "nixpkgs": "nixpkgs",

flake.nix

@@ -6,7 +6,6 @@
     flake-parts.inputs.nixpkgs.follows = "nixpkgs";
     haskell-flake.url = "github:srid/haskell-flake";
     treefmt-flake.url = "github:srid/treefmt-flake";
-    check-flake.url = "github:srid/check-flake";
   };
 
   outputs = inputs@{ self, nixpkgs, flake-parts, ... }:
@@ -15,7 +14,6 @@
       imports = [
         inputs.haskell-flake.flakeModule
         inputs.treefmt-flake.flakeModule
-        inputs.check-flake.flakeModule
       ];
       perSystem = { self', config, pkgs, ... }: {
         haskellProjects.default = {