build-llvm.yaml

name: "Build LLVM"

on:
  workflow_dispatch:
    inputs:
      tag:
        description: 'Git tag for the release.'
        required: true
        type: string

jobs:
  build_llvm:
    name: Build LLVM
    strategy:
      matrix:
        # os: [ubuntu-20.04, macos-11, windows-2019]
        # os: [ubuntu-20.04, macos-11]
        os: [macos-11]
    runs-on: ${{ matrix.os }}
    # container:
    #   # Intentionally old ubuntu version with old glibc.
    #   image: ubuntu:18.04
    steps:
      - name: checkout
        uses: actions/checkout@v3

      # Install build dependencies.
      # - if: contains(matrix.os, 'ubuntu')
      #   run: |
      #     apt update && apt install -y clang git wget build-essential python3 unzip
      #     # cmake from package manager is to old for the LLVM build.
      #     wget https://github.com/Kitware/CMake/releases/download/v3.30.0-rc2/cmake-3.30.0-rc2-linux-x86_64.sh
      #     chmod +x cmake-*.sh
      #     ./cmake-*.sh --skip-license --prefix=/usr
      #     # ninja from the package manager is to old for the LLVM build.
      #     wget https://github.com/ninja-build/ninja/releases/download/v1.12.1/ninja-linux.zip
      #     unzip ninja-linux.zip -d /usr/bin/
      # Build and package LLVM.
      - run: "./build-llvm-libs.sh llvm-static-libs-${{ matrix.os }}.tar.gz"
      - uses: actions/upload-artifact@v4
        with:
          name: llvm-static-libs-${{ matrix.os }}
          path: llvm-static-libs-${{ matrix.os }}.tar.gz

  create_release:
    name: Create release
    runs-on: ubuntu-latest
    needs: [build_llvm]
    permissions:
      contents: write # for creating releases
    steps:
      - name: Download Artifacts
        uses: actions/download-artifact@v4
        with:
          pattern: llvm-static-libs-*
          merge-multiple: true

      - name: Create Release
        uses: softprops/action-gh-release@v2
        with:
          name: LLVM tooling libraries ${{ inputs.tag }}
          tag_name: ${{ inputs.tag }}
          files: llvm-static-libs-*
          fail_on_unmatched_files: true