lint-build-commits.yaml

name: Build Commits

# Any change in triggers needs to be reflected in the concurrency group.
on:
  pull_request: {}

permissions: read-all

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  build_commits:
    name: Check if build works for every commit
    runs-on: ubuntu-22.04
    timeout-minutes: 180
    steps:
      - name: Configure git
        run: |
          git config --global user.name "GitHub Actions"
          git config --global user.email "github-actions@users.noreply.github.com"

      - name: Install Go
        uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
        with:
          # renovate: datasource=golang-version depName=go
          go-version: 1.22.6

      - name: Set clang directory
        id: set_clang_dir
        run: echo "clang_dir=$HOME/.clang" >> $GITHUB_OUTPUT

      - name: Cache LLVM and Clang
        id: cache-llvm
        uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
        with:
          path: ${{ steps.set_clang_dir.outputs.clang_dir }}
          key: llvm-10.0

      - name: Install LLVM and Clang prerequisites
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends libtinfo5

      - name: Install LLVM and Clang
        uses: KyleMayes/install-llvm-action@82fd451e4380968e8336eefc5b8b9292a619de01 # v2.0.3
        with:
          version: "10.0"
          directory: ${{ steps.set_clang_dir.outputs.clang_dir }}
          cached: ${{ steps.cache-llvm.outputs.cache-hit }}

      - name: Install ginkgo
        run: |
          go install github.com/onsi/ginkgo/ginkgo@cc0216944b25a88d3259699a029d4e601fb8a222 # v1.12.1

      - name: Checkout code
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
        with:
          persist-credentials: false
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0

      - name: Check if build works for every commit
        run: |
          set -eu -o pipefail
          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
          for commit in $COMMITS ; do
            git checkout $commit || exit 1
            make build -j $(nproc) || exit 1
          done

      - name: Check bpf code changes
        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        id: bpf-tree
        with:
          filters: |
            src:
              - 'bpf/**'

      # Runs only if code under bpf/ is changed.
      - name: Check if datapath build works for every commit
        if: steps.bpf-tree.outputs.src == 'true'
        run: |
          set -eu -o pipefail
          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
          for commit in $COMMITS ; do
            git checkout $commit || exit 1
            make -C bpf build_all -j $(nproc) || exit 1
          done

      - name: Check test code changes
        uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        id: test-tree
        with:
          filters: |
            src:
              - 'pkg/**'
              - 'test/**'

      # Runs only if code under test/ is changed.
      - name: Check if ginkgo test suite build works for every commit
        if: steps.test-tree.outputs.src == 'true'
        run: |
          set -eu -o pipefail
          COMMITS=$(git rev-list ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
          for commit in $COMMITS ; do
            git checkout $commit || exit 1
            (make -C test build -j $(nproc) && make -C test build-darwin -j $(nproc)) || exit 1
          done

      - name: Failed commit during the build
        if: ${{ failure() }}
        run: git --no-pager log --format=%B -n 1