libexpat/.github/workflows/coverity-scan.yml

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# Copyright (c) 2024-2025 Sebastian Pipping <sebastian@pipping.org>
# Licensed under the MIT license:
#
# Permission is  hereby granted,  free of charge,  to any  person obtaining
# a  copy  of  this  software   and  associated  documentation  files  (the
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name: Upload build to Coverity Scan

on:
  push:
    branches:
      - master
  schedule:
    - cron: '0 2 * * 5'  # Every Friday at 2am
  workflow_dispatch:

permissions:
  contents: read

jobs:
  coverity_scan_upload:
    name: Upload build to Coverity Scan
    # NOTE: The idea is not to bother fork repositories with a job
    #       that is doomed to fail
    if: ${{ github.repository == 'libexpat/libexpat' }}
    runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
      with:
        # The next two lines ensure clean and public-only submissions
        repository: libexpat/libexpat
        ref: master
        # This will allow to do "git describe --tags" further done
        fetch-depth: 0

    - name: Determine version string
      id: determine_version
      run: |-
        set -x
        tee    "${GITHUB_OUTPUT}" <<< "version=$(git describe --tags | sed -e 's,^R_,,' -e 's,_,.,g')"
        tee -a "${GITHUB_OUTPUT}" <<< "git_commit=$(git rev-parse HEAD)"

    - name: Install Clang 19
      run: |-
        set -x
        source /etc/os-release
        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
        sudo add-apt-repository "deb https://apt.llvm.org/${UBUNTU_CODENAME}/ llvm-toolchain-${UBUNTU_CODENAME}-19 main"
        sudo apt-get update  # due to new repository
        sudo apt-get install --yes --no-install-recommends -V \
            clang-19 \
            libclang-rt-19-dev \
            llvm-19
        echo /usr/lib/llvm-19/bin >>"${GITHUB_PATH}"

    - name: Install build dependencies
      run: |-
        set -x
        sudo apt-get install --yes --no-install-recommends -V \
            libprotobuf-dev \
            protobuf-compiler

    - name: Configure using CMake
      run: |
        set -x -o pipefail

        type -P clang clang++
        clang --version | head -n1
        clang++ --version | head -n1

        cd expat/
        args=(
            -DEXPAT_BUILD_DOCS=OFF
            -DEXPAT_BUILD_FUZZERS=ON

            # Tune compilation of fuzzers to (1) pass all sanity checks from
            # CMakeLists.txt (that e.g. require use of fuzzers with sanitizers)
            # and (2) ideally speed up compilation since no machine or human
            # will be running the binaries we build for nothing but Coverity:
            -DCMAKE_C_COMPILER=clang
            -DCMAKE_CXX_COMPILER=clang++
            -DCMAKE_{C,CXX}_FLAGS='-O1 -g -fsanitize=address'
            -DCMAKE_{EXE,MODULE,SHARED}_LINKER_FLAGS='-g -fsanitize=address'
        )
        cmake "${args[@]}" -S . -B .

    - uses: vapier/coverity-scan-action@2068473c7bdf8c2fb984a6a40ae76ee7facd7a85  # v1.8.0
      with:
        email: ${{ secrets.COVERITY_SCAN_EMAIL }}
        token: ${{ secrets.COVERITY_SCAN_TOKEN }}
        command: make VERBOSE=1
        working-directory: "${{ github.workspace }}/expat"
        version: "${{ steps.determine_version.outputs.version }}"
        # NOTE: The commit here is not necessarily the same as ${{ github.sha }} that triggered the action.
        description: "coverity-scan-action libexpat/libexpat / ${{ steps.determine_version.outputs.git_commit }}"

    - name: Offer analysis tarball for inspection
      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
      with:
        name: expat_coverity_scan_upload_${{ github.sha }}
        path: expat/cov-int.tgz
        if-no-files-found: error