build-3rdparty-libco.yml

name: Build 3rdparty — libco

# Per-platform prebuilt static library for libco, published as release
# assets attached to the `lib-libco-<version>` tag and consumed at
# configure time by build-tools/yaafc/3rdparty-fetch.cmake (which
# downloads the prebuilt tarball, falling back to a from-source build
# only when the asset is missing). Version source of truth:
# build-tools/3rdparty/libco/version.

on:
  push:
    tags:
      - 'lib-libco-*'
  workflow_dispatch: {}

permissions:
  contents: write

jobs:
  resolve:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.read.outputs.version }}
      tag:     ${{ steps.read.outputs.tag }}
    steps:
      - uses: actions/checkout@v4
      - id: read
        run: |
          set -euo pipefail
          V="$(tr -d '[:space:]' < build-tools/3rdparty/libco/version)"
          [ -n "$V" ] || { echo "version file is empty" >&2; exit 1; }
          if [[ "${{ github.event_name }}" == "push" ]]; then
            REF="${GITHUB_REF#refs/tags/}"
            EXPECT="lib-libco-$V"
            if [ "$REF" != "$EXPECT" ]; then
              echo "tag $REF does not match version file ($EXPECT)" >&2
              exit 1
            fi
          fi
          echo "version=$V"       >> "$GITHUB_OUTPUT"
          echo "tag=lib-libco-$V" >> "$GITHUB_OUTPUT"

  build:
    needs: resolve
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        target:
          - linux-x86_64
          - linux-aarch64
          - linux-riscv64
    steps:
      - uses: actions/checkout@v4

      - name: install build deps
        run: |
          set -euo pipefail
          sudo apt-get update -y
          pkgs="build-essential cmake ninja-build pkg-config curl tar xz-utils ca-certificates git"
          case "${{ matrix.target }}" in
            linux-aarch64) pkgs="$pkgs gcc-aarch64-linux-gnu g++-aarch64-linux-gnu binutils-aarch64-linux-gnu" ;;
            linux-riscv64) pkgs="$pkgs gcc-riscv64-linux-gnu g++-riscv64-linux-gnu binutils-riscv64-linux-gnu" ;;
          esac
          sudo apt-get install -y --no-install-recommends $pkgs

      - name: build libco for ${{ matrix.target }}
        run: |
          mkdir -p out
          TARGET_PLATFORM="${{ matrix.target }}" \
          OUTPUT_DIR="$PWD/out" \
          CACHE_DIR="$PWD/.cache" \
          WORK_DIR="$PWD/.work" \
            bash build-tools/3rdparty/libco/_build.sh

      - uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ needs.resolve.outputs.tag }}
          files: out/libco-${{ matrix.target }}-*.tar.gz
          fail_on_unmatched_files: true