ci: simplify clang-format

.github/workflows/clang-format.yml

@@ -1,69 +1,23 @@
-name: Clang Format
+name: Clang-Format (Linux x86/64)
 
 on:
   push:
-    paths:
-      - '**.cpp'
-      - '**.h'
-      - '**.c'
-      - '**.cc'
-      - '**.cxx'
-      - '**.hh'
-      - '**.hpp'
-      - '**.hxx'
-      - '**.inl'
-      - '.clang-format'
-      - '.github/workflows/clang-format.yml'
-      - '.github/scripts/check-clang-format.sh'
-  pull_request:
-    paths:
-      - '**.cpp'
-      - '**.h'
-      - '**.c'
-      - '**.cc'
-      - '**.cxx'
-      - '**.hh'
-      - '**.hpp'
-      - '**.hxx'
-      - '**.inl'
-      - '.clang-format'
-      - '.github/workflows/clang-format.yml'
-      - '.github/scripts/check-clang-format.sh'
+    - "**.cpp"
+    - "**.h"
+    - "**.meson.build"
+    - ".github/workflows/*"
 
 jobs:
-  clang-format:
-    runs-on: ubuntu-24.04
-    concurrency:
-      group: clang-format-${{ github.ref }}
-      cancel-in-progress: true
+  formatting-check:
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
-      - name: Install clang-format
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y clang-format-19
-
-      - name: Check changed files
-        env:
-          CLANG_FORMAT_BIN: clang-format-19
-          EVENT_NAME: ${{ github.event_name }}
-          PR_BASE_REF: ${{ github.event.pull_request.base.ref }}
-          PR_BASE_SHA: ${{ github.event.pull_request.base.sha }}
-          BEFORE_SHA: ${{ github.event.before }}
-          CURRENT_SHA: ${{ github.sha }}
-        run: |
-          set -euo pipefail
-
-          BASE_SHA=""
-          if [ "$EVENT_NAME" = "pull_request" ]; then
-            git fetch --no-tags origin "$PR_BASE_REF"
-            BASE_SHA="$(git merge-base "origin/$PR_BASE_REF" "$CURRENT_SHA")"
-          elif [ -n "$BEFORE_SHA" ] && [ "$BEFORE_SHA" != "0000000000000000000000000000000000000000" ]; then
-            BASE_SHA="$BEFORE_SHA"
-          fi
-
-          bash ./.github/scripts/check-clang-format.sh "$BASE_SHA" "$CURRENT_SHA"
+      - name: Run clang-format style check
+        uses: jidicula/clang-format-action@v4.18.0
+        with:
+          # keep this in line with the flake
+          clang-format-version: "21"