Actions/.github/workflows/SphinxDocumentation.yml

# ==================================================================================================================== #
# Authors:                                                                                                             #
#   Patrick Lehmann                                                                                                    #
#                                                                                                                      #
# ==================================================================================================================== #
# Copyright 2020-2024 The pyTooling Authors                                                                            #
#                                                                                                                      #
# Licensed under the Apache License, Version 2.0 (the "License");                                                      #
# you may not use this file except in compliance with the License.                                                     #
# You may obtain a copy of the License at                                                                              #
#                                                                                                                      #
#   http://www.apache.org/licenses/LICENSE-2.0                                                                         #
#                                                                                                                      #
# Unless required by applicable law or agreed to in writing, software                                                  #
# distributed under the License is distributed on an "AS IS" BASIS,                                                    #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.                                             #
# See the License for the specific language governing permissions and                                                  #
# limitations under the License.                                                                                       #
#                                                                                                                      #
# SPDX-License-Identifier: Apache-2.0                                                                                  #
# ==================================================================================================================== #
name: Documentation

on:
  workflow_call:
    inputs:
      python_version:
        description: 'Python version.'
        required: false
        default: '3.12'
        type: string
      requirements:
        description: 'Python dependencies to be installed through pip.'
        required: false
        default: '-r doc/requirements.txt'
        type: string
      coverage_config:
        description: 'Path to the .coveragerc file. Use pyproject.toml by default.'
        required: false
        default: 'pyproject.toml'
        type: string
      doc_directory:
        description: 'Path to the directory containing documentation (Sphinx working directory).'
        required: false
        default: 'doc'
        type: string
      html_artifact:
        description: 'Name of the HTML documentation artifact.'
        required: false
        default: ''
        type: string
      latex_artifact:
        description: 'Name of the LaTeX documentation artifact.'
        required: false
        default: ''
        type: string
      coverage_html_artifact:
        description: 'Name of the HTML coverage artifact.'
        required: false
        default: ''
        type: string

jobs:
  Sphinx:
    name: 📓 Documentation generation using Sphinx and Python ${{ inputs.python_version }}
    runs-on: ubuntu-latest

    steps:
      - name: ⏬ Checkout repository
        uses: actions/checkout@v4

      - name: 🔧 Install graphviz
        run: sudo apt-get install -y --no-install-recommends graphviz

      - name: 🐍 Setup Python ${{ inputs.python_version }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ inputs.python_version }}

      - name: 🔧 Install wheel,tomli and pip dependencies (native)
        run: |
          python -m pip install --disable-pip-version-check -U wheel tomli
          python -m pip install --disable-pip-version-check ${{ inputs.requirements }}

      - name: 🔁 Extract configurations from pyproject.toml
        id: getVariables
        shell: python
        run: |
          from os       import getenv
          from pathlib  import Path
          from sys      import version
          from textwrap import dedent

          print(f"Python: {version}")

          from tomli import load as tomli_load

          htmlDirectory = Path("htmlcov")
          xmlFile =  Path("./coverage.xml")
          jsonFile = Path("./coverage.json")
          coverageRC = "${{ inputs.coverage_config }}".strip()

          # Read output paths from 'pyproject.toml' file
          if coverageRC == "pyproject.toml":
            pyProjectFile =  Path("pyproject.toml")
            if pyProjectFile.exists():
              with pyProjectFile.open("rb") as file:
                pyProjectSettings = tomli_load(file)

              htmlDirectory = Path(pyProjectSettings["tool"]["coverage"]["html"]["directory"])
              xmlFile       = Path(pyProjectSettings["tool"]["coverage"]["xml"]["output"])
              jsonFile      = Path(pyProjectSettings["tool"]["coverage"]["json"]["output"])
            else:
              print(f"File '{pyProjectFile}' not found and no '.coveragerc' file specified.")

          # Read output paths from '.coveragerc' file
          elif len(coverageRC) > 0:
            coverageRCFile = Path(coverageRC)
            if coverageRCFile.exists():
              with coverageRCFile.open("rb") as file:
                coverageRCSettings = tomli_load(file)

              htmlDirectory = Path(coverageRCSettings["html"]["directory"])
              xmlFile       = Path(coverageRCSettings["xml"]["output"])
              jsonFile      = Path(coverageRCSettings["json"]["output"])
            else:
              print(f"File '{coverageRCFile}' not found.")

          # Write jobs to special file
          github_output = Path(getenv("GITHUB_OUTPUT"))
          print(f"GITHUB_OUTPUT: {github_output}")
          with github_output.open("a+", encoding="utf-8") as f:
            f.write(dedent(f"""\
              coverage_report_html_directory={htmlDirectory.as_posix()}
              coverage_report_xml={xmlFile}
              coverage_report_json={jsonFile}
            """))

          print(f"DEBUG:\n  html={htmlDirectory}\n  xml={xmlFile}\n  json={jsonFile}")

      - name: 📥 Download artifacts '${{ inputs.artifact }}' from 'Package' job
        if: inputs.coverage_html_artifact != ''
        uses: actions/download-artifact@v4
        with:
          name: ${{ inputs.coverage_html_artifact }}
          path: ${{ steps.getVariables.outputs.coverage_report_html_directory }}

      - name: ☑ Generate HTML documentation
        if: inputs.html_artifact != ''
        run: |
          export PYTHONPATH=$(pwd)

          cd "${{ inputs.doc_directory || '.' }}"
          sphinx-build -v -n -b html -d _build/doctrees -j $(nproc) -w _build/html.log . _build/html

      - name: ☑ Generate LaTeX documentation
        if: inputs.latex_artifact != ''
#        continue-on-error: true
        run: |
          export PYTHONPATH=$(pwd)

          cd "${{ inputs.doc_directory || '.' }}"
          sphinx-build -v -n -b latex -d _build/doctrees -j $(nproc) -w _build/latex.log . _build/latex
#           --builder html --doctree-dir _build/doctrees --verbose --fresh-env --write-all --nitpicky --warning-file _build/html.log . _build/html

      - name: 📤 Upload 'HTML Documentation' artifact
        if: inputs.html_artifact != ''
        continue-on-error: true
        uses: actions/upload-artifact@v4
        with:
          name: ${{ inputs.html_artifact }}
          path: ${{ inputs.doc_directory }}/_build/html
          if-no-files-found: error
          retention-days: 1

      - name: 📤 Upload 'LaTeX Documentation' artifact
        if: inputs.latex_artifact != ''
        continue-on-error: true
        uses: actions/upload-artifact@v4
        with:
          name: ${{ inputs.latex_artifact }}
          path: ${{ inputs.doc_directory }}/_build/latex
          if-no-files-found: error
          retention-days: 1