build.yaml

name: Spack buildcache build

on:
  push:
    branches:
      - main
  pull_request:

env:
  SPACK_COLOR: always
  SPACK_BACKTRACE: please
  REGISTRY: ghcr.io
  IMAGE_NAME: ukri-excalibur/github-actions-buildcache

jobs:
  rebuild:
    timeout-minutes: 360
    runs-on: ubuntu-22.04
    permissions:
      packages: write
    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Install Spack
      run: |
        git clone --depth=1 https://github.com/spack/spack.git
        echo "${PWD}/spack/bin/" >> "${GITHUB_PATH}"

    - name: Spack version
      run: spack debug report

    - name: Set authentication method for mirror
      if: ${{ github.event_name == 'push' }}
      run: |
        spack -e . mirror set --oci-username ${{ github.actor }} --oci-password "${{ secrets.GITHUB_TOKEN }}" excalibur-buildcache

    - name: Concretize
      run: spack -e . concretize

    - name: Install
      timeout-minutes: 350
      run: |
        spack -e . env depfile -o Makefile
        make -Orecurse -j $(($(nproc) + 1)) SPACK_INSTALL_FLAGS=--no-check-signature

    - name: Push packages and update index
      timeout-minutes: 10
      run: |
        spack -e . buildcache push -j $(($(nproc) + 1)) --unsigned --update-index excalibur-buildcache
      if: always()