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# Checks for potential issues in the source code.

name: Check-C

on:
  workflow_dispatch:
  push:
    branches-ignore:
      - 'dependabot/**'
    paths:
      - 'm4/**'
      - 'src/**.c'
      - 'src/**.h'
      - 'src/**.mk'
      - 'src/**Makefile'
      - .github/workflows/check-c.yml
      - Makefile
      - ci/printenv.sh
      - config.mk.in
      - config.sh.in
      - configure
      - configure.ac
  pull_request:
    paths:
      - 'm4/**'
      - 'src/**.c'
      - 'src/**.h'
      - 'src/**.mk'
      - 'src/**Makefile'
      - .github/workflows/check-c.yml
      - Makefile
      - ci/printenv.sh
      - config.mk.in
      - config.sh.in
      - configure
      - configure.ac
  schedule:
    - cron: '0 7 * * 2'

permissions:  # added using https://github.com/step-security/secure-workflows
  contents: read

jobs:
  scan-build:
    runs-on: ubuntu-22.04
    timeout-minutes: 10
    steps:
    - name: Harden Runner
      uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142
      with:
        egress-policy: block
        allowed-endpoints: >
          archive.ubuntu.com:80
          azure.archive.ubuntu.com:80
          github.com:443
          packages.microsoft.com:443
          ppa.launchpadcontent.net:443
          security.ubuntu.com:80
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
    - name: update package information
      run: sudo apt-get update -qy
    - name: install clang-tools-14 and dependencies
      run: >
        sudo apt-get install -qy
        clang-tools-14 libapparmor-dev libselinux1-dev
    - name: print env
      run: ./ci/printenv.sh
    - name: configure
      run: >
        CC=clang-14 ./configure --enable-fatal-warnings --enable-apparmor
        --enable-selinux
        || (cat config.log; exit 1)
    - name: scan-build
      run: scan-build-14 --status-bugs make

  cppcheck:
    runs-on: ubuntu-22.04
    timeout-minutes: 10
    steps:
    - name: Harden Runner
      uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142
      with:
        egress-policy: block
        allowed-endpoints: >
          archive.ubuntu.com:80
          azure.archive.ubuntu.com:80
          github.com:443
          packages.microsoft.com:443
          ppa.launchpadcontent.net:443
          security.ubuntu.com:80
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
    - name: update package information
      run: sudo apt-get update -qy
    - name: install cppcheck
      run: sudo apt-get install -qy cppcheck
    - run: cppcheck --version
    - name: cppcheck
      run: >
        cppcheck -q --force --error-exitcode=1 --enable=warning,performance
        -i src/firejail/checkcfg.c -i src/firejail/main.c .

  # new cppcheck version currently chokes on checkcfg.c and main.c, therefore
  # scan all files also with older cppcheck version from ubuntu 20.04.
  cppcheck_old:
    runs-on: ubuntu-20.04
    timeout-minutes: 10
    steps:
    - name: Harden Runner
      uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142
      with:
        egress-policy: block
        allowed-endpoints: >
          archive.ubuntu.com:80
          azure.archive.ubuntu.com:80
          github.com:443
          packages.microsoft.com:443
          ppa.launchpad.net:80
          ppa.launchpadcontent.net:443
          security.ubuntu.com:80
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
    - name: update package information
      run: sudo apt-get update -qy
    - name: install cppcheck
      run: sudo apt-get install -qy cppcheck
    - run: cppcheck --version
    - name: cppcheck
      run: cppcheck -q --force --error-exitcode=1 --enable=warning,performance .

  codeql-cpp:
    permissions:
      actions: read
      contents: read
      security-events: write
    runs-on: ubuntu-latest
    timeout-minutes: 10

    steps:
    - name: Harden Runner
      uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142
      with:
        disable-sudo: true
        egress-policy: block
        allowed-endpoints: >
          api.github.com:443
          github.com:443
          objects.githubusercontent.com:443
          uploads.github.com:443

    - name: Checkout repository
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11

    - name: print env
      run: ./ci/printenv.sh

    # Initializes the CodeQL tools for scanning.
    - name: Initialize CodeQL
      uses: github/codeql-action/init@e8893c57a1f3a2b659b6b55564fdfdbbd2982911
      with:
        languages: cpp

    - name: configure
      run: ./configure

    - name: make
      run: make -j "$(nproc)"

    - name: Perform CodeQL Analysis
      uses: github/codeql-action/analyze@e8893c57a1f3a2b659b6b55564fdfdbbd2982911