name: Release (anylinux amd64 wheel)

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: write

jobs:
  build-and-release:
    runs-on: ubuntu-latest
    name: Build anylinux amd64 wheel

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          submodules: recursive
          ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}

      - name: Build wheel in Alpine container
        run: |
          docker run --rm \
            -v "${{ github.workspace }}:/src" \
            -w /src \
            --platform linux/amd64 \
            alpine:3.20 sh -c '
              set -ex
              apk add --no-cache \
                build-base bison flex flex-dev gperf \
                tcl-dev readline-dev zlib-dev libffi-dev \
                libdwarf-dev elfutils-dev \
                python3 python3-dev py3-pip py3-setuptools py3-wheel \
                git pkgconf ccache patchelf

              git config --global --add safe.directory /src
              git submodule foreach --recursive git config --global --add safe.directory \$toplevel/\$sm_path

              # Alpine/musl compatibility shims for Verific tclmain link step
              ln -sf /usr/lib/libtcl8.6.so /usr/lib/libtcl.so
              echo "void dummy_nsl(void){}" | gcc -shared -o /usr/lib/libnsl.so -x c -

              # Build Verific TCL main (needed before Yosys)
              cd /src/verific/tclmain
              make
              cd /src

              # Build the wheel via setup.py
              pip install --break-system-packages pybind11 cxxheaderparser
              _PYOSYS_OVERRIDE_VER=$(
                grep "^YOSYS_VER " Makefile | head -1 | sed "s/.*:= *//" | tr "+" "."
              ) python3 setup.py bdist_wheel --dist-dir /src/dist

              # Also build the yosys binary + install tarball
              make clean
              make -j$(nproc) SMALL=1 ENABLE_PLUGINS=0 ENABLE_TCL=1 ENABLE_READLINE=1 PREFIX=/usr/local
              make DESTDIR=/tmp/install PREFIX=/usr/local install

              # Bundle shared library dependencies and set RPATHs
              STAGE=/tmp/install/usr/local
              mkdir -p "$STAGE/lib"

              copy_deps() {
                for f in "$@"; do
                  [ -f "$f" ] || continue
                  ldd "$f" 2>/dev/null | awk "/=>/ {print \$3}" | while read -r lib; do
                    [ -f "$lib" ] || continue
                    base=$(basename "$lib")
                    case "$base" in ld-musl-*|libc.musl-*) continue ;; esac
                    [ -f "$STAGE/lib/$base" ] || cp "$lib" "$STAGE/lib/$base"
                  done
                done
              }

              copy_deps "$STAGE"/bin/*
              copy_deps "$STAGE"/lib/*.so*

              for f in "$STAGE"/bin/*; do
                [ -f "$f" ] && patchelf --set-rpath "\$ORIGIN/../lib" "$f" 2>/dev/null || true
              done
              for f in "$STAGE"/lib/*.so*; do
                [ -f "$f" ] && patchelf --set-rpath "\$ORIGIN" "$f" 2>/dev/null || true
              done

              cd /tmp/install
              tar czf /src/yosys-anylinux-amd64.tar.gz .
            '

      - name: Generate release notes
        id: meta
        run: |
          SHORT_SHA=$(git rev-parse --short HEAD)
          FULL_SHA=$(git rev-parse HEAD)
          DATE=$(date -u +%Y-%m-%d)
          echo "short_sha=$SHORT_SHA" >> "$GITHUB_OUTPUT"
          echo "date=$DATE" >> "$GITHUB_OUTPUT"
          REPO_URL="${{ github.server_url }}/${{ github.repository }}"
          WHEEL=$(ls dist/*.whl | head -1)
          WHEEL_NAME=$(basename "$WHEEL")
          echo "wheel_name=$WHEEL_NAME" >> "$GITHUB_OUTPUT"
          printf '%s\n' \
            "Automated build from \`main\` @ [\`${SHORT_SHA}\`](${REPO_URL}/commit/${FULL_SHA})" \
            "" \
            "**Platform:** Linux amd64 (Alpine-based, portable across Linux distros)" \
            "**Built:** ${DATE}" \
            "" \
            "### Assets" \
            "- \`yosys-anylinux-amd64.tar.gz\` — standalone tarball" \
            "- \`${WHEEL_NAME}\` — Python wheel (pyosys)" \
            "" \
            "### Installation (tarball)" \
            "\`\`\`bash" \
            "sudo tar xzf yosys-anylinux-amd64.tar.gz -C /" \
            "\`\`\`" \
            "" \
            "### Installation (wheel)" \
            "\`\`\`bash" \
            "pip install ${WHEEL_NAME}" \
            "\`\`\`" \
            > release_notes.md

      - name: Create permanent release
        run: |
          TAG="build-${{ steps.meta.outputs.date }}-${{ steps.meta.outputs.short_sha }}"
          gh release create "$TAG" \
            yosys-anylinux-amd64.tar.gz \
            dist/*.whl \
            --target "${{ github.sha }}" \
            --title "Build ${{ steps.meta.outputs.date }} (${{ steps.meta.outputs.short_sha }})" \
            --notes-file release_notes.md
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Update latest release
        run: |
          git tag -f latest HEAD
          git push -f origin latest
          gh release delete latest --yes 2>/dev/null || true
          gh release create latest \
            yosys-anylinux-amd64.tar.gz \
            dist/*.whl \
            --target "${{ github.sha }}" \
            --title "Latest Build (${{ steps.meta.outputs.date }})" \
            --notes-file release_notes.md \
            --prerelease
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}