pythonapp.yml

name: Python application

on: [push, workflow_dispatch]

jobs:
  python_build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v6
      with:
        fetch-depth: 0
    - name: Set up Python 3.12
      uses: actions/setup-python@v6
      with:
        python-version: 3.12
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        python -m pip install -r requirements-pinned.txt
    - name: Lint with flake8
      run: |
        # stop the build if there are Python syntax errors or undefined names
        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        # exit-zero treats all errors as warnings.
        flake8 . --count --exit-zero --max-complexity=20 --max-line-length=160 --statistics
    - name: Test with pytest
      run: |
        # find and run tests, capturing stdout and stderr for the log
        pytest --capture=tee-sys

  windows_executable:

    runs-on: windows-latest

    steps:
    - uses: actions/checkout@v6
      with:
        fetch-depth: 0
    - name: Set up Python 3.12
      uses: actions/setup-python@v6
      with:
        python-version: 3.12
    - name: Install the Cairo runtime used by CairoSVG
      id: msys2
      uses: msys2/setup-msys2@v2
      with:
        msystem: MINGW64
        update: true
        install: mingw-w64-x86_64-cairo
    - name: Locate Cairo for the standalone build
      shell: pwsh
      env:
        MSYS2_LOCATION: ${{ steps.msys2.outputs.msys2-location }}
      run: |
        $cairoDll = Join-Path $env:MSYS2_LOCATION 'mingw64\bin\libcairo-2.dll'
        if (-not (Test-Path $cairoDll)) {
          throw "The MSYS2 Cairo DLL was not installed at $cairoDll"
        }
        "CEWE2PDF_CAIRO_DLL=$cairoDll" >> $env:GITHUB_ENV
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        python -m pip install -r requirements-winexe.txt
    - name: Build Windows standalone executable
      run: python -m PyInstaller cewe2pdf.spec --noconfirm --clean
    - name: Smoke-test Windows executable
      run: |
        & .\dist\cewe2pdf.exe --version
        if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
        & .\dist\cewe2pdf.exe --outFile tests\testEmptyPageOne\executable-smoke.pdf tests\testEmptyPageOne\test_emptyPageOne.mcf
        if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
        if (-not (Test-Path tests\testEmptyPageOne\executable-smoke.pdf)) {
          throw 'The standalone executable did not create executable-smoke.pdf'
        }

  tag_successful_canonical_master:

    needs: [python_build, windows_executable]
    if: ${{ always() && needs.python_build.result == 'success' && needs.windows_executable.result == 'success' && github.repository == 'bash0/cewe2pdf' && github.ref == 'refs/heads/master' }}
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
    - uses: actions/checkout@v6
      with:
        fetch-depth: 0
    - name: Set up Python 3.12
      uses: actions/setup-python@v6
      with:
        python-version: 3.12
    - name: Tag successful canonical-master build
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        version=$(python -c "from programversion import PROGRAM_VERSION; print(PROGRAM_VERSION)")
        tag="cewe2pdf-v${version}-build-${GITHUB_RUN_NUMBER}"
        if git rev-parse -q --verify "refs/tags/${tag}"; then
          existing_commit=$(git rev-list -n 1 "${tag}")
          if [ "${existing_commit}" != "${GITHUB_SHA}" ]; then
            echo "Existing tag ${tag} identifies ${existing_commit}, not ${GITHUB_SHA}" >&2
            exit 1
          fi
          echo "Tag ${tag} already identifies this build."
          exit 0
        fi
        git config user.name "github-actions[bot]"
        git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
        git tag -a "${tag}" -m "Successful cewe2pdf build ${tag}"
        git push origin "${tag}"