libc++abi.yml

name: Build libc++abi

on:
  push:
    branches:
      - release-libcxxabi
    tags-ignore:
      - '**'

permissions:
  contents: write
  id-token: write
  attestations: write

jobs:
  setup-llvm-version:
    runs-on: ubuntu-latest
    outputs:
      llvm-version: ${{ steps.setup-llvm-version.outputs.llvm-version }}
    steps:
      - name: Setup
        id: setup-llvm-version
        run: |
          echo "llvm-version=$(cat llvm-version)" >> $GITHUB_OUTPUT

  build-musl:
    runs-on: ${{ matrix.settings.runs-on }}
    needs: setup-llvm-version
    name: Build libc++abi for ${{ matrix.settings.arch }} Linux musl
    strategy:
      matrix:
        settings:
          - { arch: x86_64, runs-on: ubuntu-latest }
          - { arch: aarch64, runs-on: ubuntu-24.04-arm }
    steps:
      - name: Build in docker
        uses: addnab/docker-run-action@v3
        with:
          image: node:18-alpine
          options: -v ${{ github.workspace }}:/build -w /build
          run: |
            apk add clang llvm wget unzip cmake ninja xz tar musl-dev python3
            node scripts/build-c++abi.mjs
      - uses: actions/attest-build-provenance@v2
        with:
          subject-path: |
            libc++abi.a
      - name: Upload
        uses: actions/upload-artifact@v4
        with:
          name: libc++abi-${{ matrix.settings.arch }}.a
          path: libc++abi.a

  release:
    needs:
      - setup-llvm-version
      - build-musl
    runs-on: ubuntu-latest
    steps:
      - name: Download x86_64
        uses: actions/download-artifact@v4
        with:
          name: libc++abi-x86_64.a
          path: .
      - name: Rename
        run: |
          mv libc++abi.a libc++abi-x86_64.a
      - name: Download aarch64
        uses: actions/download-artifact@v4
        with:
          name: libc++abi-aarch64.a
          path: .
      - name: Rename
        run: |
          mv libc++abi.a libc++abi-aarch64.a
      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          files: |
            libc++abi-x86_64.a
            libc++abi-aarch64.a
          name: libc++abi-${{ needs.setup-llvm-version.outputs.llvm-version }}
          tag_name: libc++abi-${{ needs.setup-llvm-version.outputs.llvm-version }}
          make_latest: false