name: Generate screenshots
on:
  push:
    branches:
      - master

jobs:
  build:
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-java@v1
        with:
          java-version: 14
      - uses: openrndr/setup-opengl@v1.1
      - name: Test glxinfo
        run: |
          echo $LD_LIBRARY_PATH
          export GALLIUM_DRIVER=swr
          xvfb-run glxinfo

      - uses: actions/cache@v2
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-

      - name: Collect screenshots
        run: xvfb-run ./gradlew collectScreenshots
      - name: Build main readme
        run: xvfb-run ./gradlew buildMainReadme
      - name: Prepare media branch
        run: |
          git config --global user.email "actions@openrndr.org"
          git config --global user.name "OPENRNDR Actions"
          git reset HEAD -- .
          (git add README.md && git commit -m "add auto-generated README" && git push origin master) || true
          (git add [a-z-]*/README.md && git commit -m "add demos to README.md" && git push origin master) || true
          git checkout --orphan media
          git reset HEAD -- .
          git add [a-z-]*/images/*.png
          git commit -m "add auto-generated media"
          git push -f origin media