build.yaml

name: Spack buildcache build

on:
  push:
    branches:
    - main
  workflow_dispatch:
    inputs:
      name:
        type: boolean
        description: Create a fresh buildcache
        default: false

env:
  SPACK_BACKTRACE: please

jobs:
  rebuild:
    runs-on: ubuntu-22.04
    permissions:
      packages: write
    steps:
    - name: Checkout
      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

    - name: Setup Spack
      uses: spack/setup-spack@v3

    - name: Find compilers
      run: spack -e . compiler find

    - name: Show packages config
      run: spack -e . config get packages

    - name: Concretize (fresh)
      run: spack -e . -v concretize --fresh
      if: ${{ github.event.inputs.name == 'true' }}

    - name: Concretize (reuse)
      run: spack -e . -v concretize
      if: ${{ github.event.inputs.name == 'false' || github.event_name != 'workflow_dispatch' }}

    - name: Install
      run: |
        spack -e . env depfile -o Makefile
        make -Orecurse -j $(($(nproc) + 1))

    - name: Push packages and update index
      env:
        GITHUB_USER: ${{ github.actor }}
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: spack -e . buildcache push -j $(($(nproc) + 1)) --base-image ubuntu:22.04 --update-index github-actions-buildcache
      if: ${{ !cancelled() }}