name: Lua API

on:
  push:
    paths:
    - 'vis-lua.c'
    - 'lua/**'

jobs:
  luadoc:
    runs-on: ubuntu-latest
    steps:

    - name: Checkout
      uses: actions/checkout@v2

    - name: Dependency
      run: sudo apt install lua-ldoc

    - name: LDoc patch
      run: sudo patch -d /usr/share/lua/5.1 -p1 < lua/doc/README.md

    - name: Documentation generation
      run: make luadoc

    - name: Upload
      env:
        DEPLOY_TOKEN: ${{ secrets.GITHUB_DEPLOY_TOKEN }}
      run: |
        git clone --depth=1 --single-branch --branch gh-pages "https://x-access-token:${DEPLOY_TOKEN}@github.com/${GITHUB_REPOSITORY}.git" /tmp/gh-pages
        git config --global user.name "${GITHUB_ACTOR}"
        git config --global user.email "${GITHUB_ACTOR}@users.noreply.github.com"
        mkdir -p /tmp/gh-pages/doc
        rm -f /tmp/gh-pages/doc/*
        cp -av lua/doc/*.html /tmp/gh-pages/doc/
        cp -av lua/doc/*.css /tmp/gh-pages/doc/
        cd /tmp/gh-pages
        git add -A && git commit --allow-empty -am "Publishing from ${GITHUB_REPOSITORY} ${GITHUB_SHA}"
        git push origin gh-pages