Add clang-tidy CI (#5)

Author: AdityaPandeyCN

.github/workflows/clang-format.yml

@@ -0,0 +1,51 @@
+name: clang-format
+
+on:
+  pull_request:
+    paths:
+      - '**.h'
+      - '**.cxx'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  precheckin:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout PR branch
+        uses: actions/checkout@v5
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: 0
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install clang-format
+        run: |
+          curl https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          os_codename="`cat /etc/os-release | grep UBUNTU_CODENAME | cut -d = -f 2`"
+          echo "deb https://apt.llvm.org/${os_codename}/ llvm-toolchain-${os_codename}-18 main" | sudo tee -a /etc/apt/sources.list
+          sudo apt update
+          sudo apt install -y clang-format-18
+
+      - name: Run git-clang-format
+        run: |
+          PR_BASE=$(git rev-list ${{ github.event.pull_request.head.sha }} ^${{ github.event.pull_request.base.sha }} | tail --lines 1 | xargs -I {} git rev-parse {}~1)
+          echo "running git clang-format against $PR_BASE commit"
+          git \
+          -c color.ui=always \
+          -c diff.wsErrorHighlight=all \
+          -c color.diff.whitespace='red reverse' \
+          clang-format-18 --diff --binary clang-format-18 --commit $PR_BASE -- inc/ src/ tools/ test/ benchmark/ || \
+          (echo "Please run the following git-clang-format locally to fix the formatting: \n
+                git-clang-format HEAD~\n
+                for multiple commits we should place the formatting changes in the related commit with:\n
+                \t\tgit rebase -i -x \"git-clang-format-18 main && git commit -a --allow-empty --fixup=HEAD\" --strategy-option=theirs origin/main\n
+                \t\t Then inspect the results with: git log --oneline\n
+                \t\t Then squash without poluting the history with: git rebase --autosquash -i main\n" && exit 1) 
+

.github/workflows/clang-tidy-review.yml

@@ -0,0 +1,69 @@
+name: clang-tidy-review
+
+on:
+  pull_request:
+    paths:
+      - '**.h'
+      - '**.cxx'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  review:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout PR branch
+        uses: actions/checkout@v5
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install LLVM and Clang
+        uses: KyleMayes/[email protected]
+        with:
+          version: '20.1.4'
+
+      - name: Install lit
+        run: pip install --disable-pip-version-check --no-input lit
+
+      - name: Install ROOT
+        run: |
+          ROOT_URL="https://root.cern/download/root_v6.34.06.Linux-ubuntu24.04-x86_64-gcc13.3.tar.gz"
+          wget -O root.tar.gz "$ROOT_URL"
+          sudo tar -xzf root.tar.gz -C /opt/
+          echo "/opt/root/bin" >> "$GITHUB_PATH"
+
+      - name: Run clang-tidy
+        uses: ZedThree/[email protected]
+        id: review
+        with:
+          build_dir: build
+          apt_packages: cmake,libxml2,libxml2-dev,libtinfo-dev,zlib1g-dev,libzstd-dev,libvdt-dev,libtbb-dev
+          split_workflow: true
+          config_file: .clang-tidy
+          cmake_command: >
+            source /opt/root/bin/thisroot.sh &&
+            cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
+            -DCMAKE_C_COMPILER="$GITHUB_WORKSPACE/llvm/bin/clang"
+            -DCMAKE_CXX_COMPILER="$GITHUB_WORKSPACE/llvm/bin/clang++"
+            -DLLVM_DIR="$GITHUB_WORKSPACE/llvm"
+            -DBUILD_SHARED_LIBS=ON
+            -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+            -DRAMTOOLS_BUILD_TESTS=ON
+            -DRAMTOOLS_BUILD_TOOLS=ON
+            -DRAMTOOLS_BUILD_BENCHMARKS=ON &&
+            cd build &&
+            cmake --build . --target googletest --parallel $(nproc --all)
+
+      - name: Upload artifacts
+        if: always()
+        uses: ZedThree/clang-tidy-review/[email protected]
+