update treefmt configuration

.github/workflows/test.yml

@@ -10,10 +10,10 @@ jobs:
   tests:
     strategy:
       matrix:
-        os: [ ubuntu-latest ]
+        os: [ubuntu-latest]
         # FIXME macos garbage currently collect also nix-shell that runs the test
         #os: [ ubuntu-latest, macos-latest ]
-        variants: [ stable, latest, bash4 ]
+        variants: [stable, latest, bash4]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -22,5 +22,4 @@ jobs:
           nix_path: nixpkgs=channel:nixpkgs-unstable
           extra_nix_config: |
             experimental-features = nix-command flakes
-    - run:
-        "nix run --accept-flake-config .#test-runner-${{ matrix.variants }}"
+      - run: "nix run --accept-flake-config .#test-runner-${{ matrix.variants }}"

treefmt.nix

@@ -18,15 +18,12 @@
         shellcheck.enable = true;
         shfmt.enable = true;
         statix.enable = true;
+        yamlfmt.enable = true;
       };
 
-      settings.formatter =
-        let
-          shellIncludes = [ "*.sh" "direnvrc" ];
-        in
-        {
-          shellcheck.includes = shellIncludes;
-          shfmt.includes = shellIncludes;
+      settings.formatter = {
+        shellcheck.includes = [ "direnvrc" ];
+        shfmt.includes = [ "direnvrc" ];
       };
     };
   };