release.yml

name: Release

on:
  push:
    tags: ["v*"]

permissions:
  contents: write

jobs:
  build-pdf:
    name: Build PDF and create release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Install Python dependencies
        run: pip install Pillow scipy numpy

      - name: Install Mermaid CLI
        run: npm install -g @mermaid-js/mermaid-cli

      - name: Install system deps (Chromium for mermaid-cli, LaTeX, pandoc)
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            ca-certificates fonts-liberation libasound2t64 libatk-bridge2.0-0 \
            libatk1.0-0 libcairo2 libcups2 libdbus-1-3 libexpat1 libgbm1 \
            libglib2.0-0t64 libnspr4 libnss3 libpango-1.0-0 libx11-6 libx11-xcb1 \
            libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 \
            libxi6 libxkbcommon0 libxrandr2 libxrender1 libxss1 libxtst6 \
            texlive-luatex \
            texlive-latex-recommended \
            texlive-latex-extra \
            texlive-fonts-recommended \
            texlive-fonts-extra \
            texlive-science \
            pandoc \
            fonts-texgyre

      - name: Build PDF
        run: bash build/pdf/build.sh

      - name: Extract version from tag
        id: version
        run: echo "tag=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"

      - name: Create GitHub release
        env:
          GH_TOKEN: ${{ github.token }}
          TAG: ${{ steps.version.outputs.tag }}
        run: |
          cp "book/evenwicht-${TAG}.pdf" "book/evenwicht.pdf"
          gh release create "$TAG" \
            "book/evenwicht-${TAG}.pdf" \
            "book/evenwicht.pdf" \
            --title "$TAG" \
            --notes "Evenwicht $TAG — PDF built from source."