# Builds the patched engines once; release.yml downloads them.
name: engines

on:
  workflow_dispatch:

permissions:
  contents: write

jobs:
  macos:
    strategy:
      fail-fast: false
      matrix:
        include:
          - runner: macos-15
            arch: arm64
          - runner: macos-15-intel
            arch: x86_64
    runs-on: ${{ matrix.runner }}
    timeout-minutes: 355
    env:
      GH_TOKEN: ${{ github.token }}
      CCACHE_DIR: ${{ github.workspace }}/.ccache
      CCACHE_MAXSIZE: 6G
    steps:
      - uses: actions/checkout@v4
      - name: Key
        id: key
        run: echo "key=$(scripts/engines-key.sh)" >> "$GITHUB_OUTPUT"
      - name: Already built?
        id: done
        run: |
          if gh release view "engines-${{ steps.key.outputs.key }}" --json assets \
              --jq '.assets[].name' 2>/dev/null | grep -qx "engines-macos-${{ matrix.arch }}.tar.zst"; then
            echo "built=true" >> "$GITHUB_OUTPUT"
          fi
      - name: Tools
        if: steps.done.outputs.built != 'true'
        run: brew install make gnu-sed bison flex gettext autoconf automake libtool ccache nasm zstd
      - name: Compiler cache
        if: steps.done.outputs.built != 'true'
        uses: actions/cache/restore@v4
        with:
          path: .ccache
          key: ccache-macos-${{ matrix.arch }}-${{ steps.key.outputs.key }}-${{ github.run_id }}
          restore-keys: ccache-macos-${{ matrix.arch }}-
      - name: Upstream sources
        if: steps.done.outputs.built != 'true'
        run: scripts/fetch-references.sh
      - name: LibreOffice (patched)
        if: steps.done.outputs.built != 'true'
        run: scripts/build-libreoffice.sh
      - name: MuPDF (patched), Git, git-lfs, OCR data, CEF
        if: steps.done.outputs.built != 'true'
        run: |
          scripts/build-mupdf.sh
          scripts/build-git.sh
          scripts/fetch-git-lfs.sh
          scripts/fetch-tessdata.sh
          scripts/fetch-cef.sh
      - name: Keep the compiler cache, even after a timeout
        if: always() && steps.done.outputs.built != 'true'
        uses: actions/cache/save@v4
        with:
          path: .ccache
          key: ccache-macos-${{ matrix.arch }}-${{ steps.key.outputs.key }}-${{ github.run_id }}
      - name: Publish
        if: steps.done.outputs.built != 'true'
        run: |
          archive=engines-macos-${{ matrix.arch }}.tar.zst
          tar -C engines -cf - lo-src/instdir mupdf-build mupdf-src git git-src/COPYING git-src/LGPL-2.1 cef tessdata |
            zstd -19 -T0 -o "$archive"
          tag=engines-${{ steps.key.outputs.key }}
          gh release view "$tag" >/dev/null 2>&1 ||
            gh release create "$tag" --prerelease --title "$tag" --notes "Pinned, patched engines; built by engines.yml."
          gh release upload "$tag" "$archive" --clobber