.github/workflows/doc-build.yml

# Copyright (c) 2020 Linaro Limited.
# SPDX-License-Identifier: Apache-2.0

name: Documentation GitHub Workflow

on:
  pull_request:
    paths:
    - 'Makefile'
    - 'doc/**'
    - '**.rst'
    - 'include/**'
    - 'kernel/include/kernel_arch_interface.h'
    - 'lib/libc/**'
    - 'subsys/testsuite/ztest/include/**'
    - 'tests/**'
    - '.known-issues/doc/**'
    - '**/Kconfig*'
    - 'west.yml'
    - '.github/workflows/doc-build.yml'

jobs:
  doc-build:
    name: "Documentation Build"
    runs-on: ubuntu-latest

    steps:
    - name: Update PATH for west
      run: |
        echo "$HOME/.local/bin" >> $GITHUB_PATH

    - name: checkout
      uses: actions/checkout@v2

    - name: install-pkgs
      run: |
        sudo apt-get install -y ninja-build doxygen

    - name: cache-pip
      uses: actions/cache@v1
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-doc-pip

    - name: install-pip
      run: |
        pip3 install setuptools wheel
        pip3 install -r scripts/requirements-base.txt
        pip3 install -r scripts/requirements-doc.txt
        pip3 install west==0.9.0

    - name: west setup
      run: |
        west init -l . || true

    - name: build-docs
      run: |
        source zephyr-env.sh
        make htmldocs
        tar cvf htmldocs.tar --directory=./doc/_build html

    - name: upload-build
      uses: actions/upload-artifact@master
      continue-on-error: True
      with:
        name: htmldocs.tar
        path: htmldocs.tar

    - name: check-warns
      run: |
        if [ -s doc/_build/doc.warnings ]; then
           docwarn=$(cat doc/_build/doc.warnings)
           docwarn="${docwarn//'%'/'%25'}"
           docwarn="${docwarn//$'\n'/'%0A'}"
           docwarn="${docwarn//$'\r'/'%0D'}"
           # We treat doc warnings as errors
           echo "::error file=doc.warnings::$docwarn"
           exit 1
        fi