doc-build-pdf.yml

name: Build documentation (PDF)

on:
  pull_request:
  push:
  workflow_dispatch:
    # Allow to run manually
    inputs:
      platform:
        description: 'Platform'
        required: true
        default: 'ubuntu-jammy-standard'
      docker_tag:
        description: 'Docker tag'
        required: true
        default: 'dev'

concurrency:
  # Cancel previous runs of this workflow for the same branch
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  # Same as in build.yml
  TOX_ENV:                "docker-${{ github.event.inputs.platform || 'ubuntu-jammy-standard' }}-incremental"
  BUILD_IMAGE:            "localhost:5000/${{ github.repository }}/sage-${{ github.event.inputs.platform || 'ubuntu-jammy-standard' }}-with-targets:ci"
  FROM_DOCKER_REPOSITORY: "ghcr.io/sagemath/sage/"
  FROM_DOCKER_TARGET:     "with-targets"
  FROM_DOCKER_TAG:        ${{ github.event.inputs.docker_tag || 'dev'}}
  EXTRA_CONFIGURE_ARGS:   --enable-fat-binary

jobs:
  build-docs-pdf:
    runs-on: ubuntu-latest
    services:
      # https://docs.docker.com/build/ci/github-actions/local-registry/
      registry:
        image: registry:2
        ports:
          - 5000:5000
    steps:
      - name: Maximize build disk space
        uses: easimon/maximize-build-space@v10
        with:
          # need space in /var for Docker images
          root-reserve-mb:      30000
          remove-dotnet:        true
          remove-android:       true
          remove-haskell:       true
          remove-codeql:        true
          remove-docker-images: true
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install test prerequisites
        # From docker.yml
        run: |
          sudo DEBIAN_FRONTEND=noninteractive apt-get update
          sudo DEBIAN_FRONTEND=noninteractive apt-get install tox
          sudo apt-get clean
          df -h
      - name: Merge CI fixes from sagemath/sage
        run: |
          mkdir -p upstream
          .ci/merge-fixes.sh 2>&1 | tee upstream/ci_fixes.log
        env:
          GH_TOKEN: ${{ github.token }}
          SAGE_CI_FIXES_FROM_REPOSITORIES: ${{ vars.SAGE_CI_FIXES_FROM_REPOSITORIES }}

      # Building

      - name: Generate Dockerfile
        # From docker.yml
        run: |
          tox -e ${{ env.TOX_ENV }}
          cp .tox/${{ env.TOX_ENV }}/Dockerfile .
        env:
          # Only generate the Dockerfile, do not run 'docker build' here
          DOCKER_TARGETS: ""

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          driver-opts: network=host

      - name: Build Docker image
        id: image
        uses: docker/build-push-action@v5
        with:
          # push and load may not be set together at the moment
          push:       true
          load:       false
          context:    .
          tags:       ${{ env.BUILD_IMAGE }}
          target:     with-targets
          cache-from: type=gha
          cache-to:   type=gha,mode=max
          build-args: |
            NUMPROC=6
            USE_MAKEFLAGS=-k V=0 SAGE_NUM_THREADS=4 --output-sync=recurse
            TARGETS_PRE=build/make/Makefile
            TARGETS=ci-build-with-fallback

      - name: Start container
        run: |
          docker run --name BUILD -dit \
                     --mount type=bind,src=$(pwd),dst=$(pwd) \
                     --workdir $(pwd) \
                     ${{ env.BUILD_IMAGE }} /bin/sh

      # Docs

      - name: Update system packages
        run: |
          export PATH="build/bin:$PATH"
          eval $(sage-print-system-package-command auto update)
          eval $(sage-print-system-package-command auto --yes --no-install-recommends install zip)
          eval $(sage-print-system-package-command auto --spkg --yes --no-install-recommends install git texlive texlive_luatex free_fonts xindy)
        shell: sh .ci/docker-exec-script.sh BUILD /sage {0}

      - name: Build docs (PDF)
        id: docbuild
        run: |
          export MAKE="make -j5 --output-sync=recurse" SAGE_NUM_THREADS=5
          make doc-clean doc-uninstall; make sagemath_doc_html-build-deps sagemath_doc_pdf-no-deps
        shell: sh .ci/docker-exec-script.sh BUILD /sage {0}

      - name: Copy docs
        id: copy
        if: (success() || failure()) && steps.docbuild.outcome == 'success'
        run: |
          # For some reason the deploy step below cannot find /sage/...
          # So copy everything from there to local folder
          mkdir -p ./docs
          cp -r -L /sage/local/share/doc/sage/pdf ./docs
          # Zip everything for increased performance
          zip -r docs-pdf.zip docs
        shell: sh .ci/docker-exec-script.sh BUILD /sage {0}

      - name: Upload docs
        if: (success() || failure()) && steps.copy.outcome == 'success'
        uses: actions/upload-artifact@v3
        with:
          name: docs-pdf
          path: docs-pdf.zip