name: Spack Buildcache

on:
  workflow_dispatch:
  schedule:
    - cron: '0 3 * * 0'  # Weekly on Sunday at 3am UTC
  push:
    paths:
      - 'test/ci/spack.yaml'
      - '.github/workflows/buildcache.yml'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    if: github.repository == 'FairRootGroup/FairMQ'
    name: gcc-${{ matrix.gcc }}
    runs-on: ubuntu-latest
    permissions:
      packages: write
    strategy:
      fail-fast: false
      matrix:
        gcc: ['12', '13', '14', '15']

    env:
      GITHUB_USER: ${{ github.actor }}
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    steps:
      - uses: actions/checkout@v4

      - uses: ./.github/actions/setup-deps
        with:
          gcc: ${{ matrix.gcc }}
          fresh: true

      - name: Push to buildcache
        if: ${{ !cancelled() }}
        run: spack buildcache push --unsigned --update-index local-buildcache