eamxx-scripts-tests.yml

name: eamxx-scripts

on:
  # Runs on PRs against master, but only if they touch eamxx scripts
  pull_request:
    branches: [ master ]
    types: [opened, synchronize, ready_for_review, reopened]

  # Manual run for debug purposes only
  workflow_dispatch:

  # Add schedule trigger for nightly runs at midnight MT (Standard Time)
  schedule:
    - cron: '0 7 * * *'  # Runs at 7 AM UTC, which is midnight MT during Standard Time

concurrency:
  # Two runs are in the same group if they are testing the same git ref
  #  - if trigger=pull_request, the ref is refs/pull/<PR_NUMBER>/merge
  #  - for other triggers, the ref is the branch tested
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  pre_process_pr:
    if: ${{ github.event_name == 'pull_request' }}
    runs-on: ubuntu-latest  # This job can run anywhere
    outputs:
      relevant_paths: ${{ steps.check_paths.outputs.value}}
      labels: ${{ steps.get_labels.outputs.labels }}
    steps:
      - name: Check files modified by PR
        id: check_paths
        run: |
          paths=(
            components/eamxx/scripts
            components/eamxx/cime_config/eamxx
            components/eamxx/cime_config/build
            components/eamxx/cime_config/yaml_utils.py
            .github/workflows/eamxx-scripts-tests.yml
          )
          pattern=$(IFS=\|; echo "${paths[*]}")

          # Use the GitHub API to get the list of changed files
          # There are page size limits, so do it in chunks
          page=1
          while true; do
            response=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
              "https://api.github.com/repos/E3SM-Project/scream/pulls/${{ github.event.number }}/files?per_page=100&page=$page")

            # Check if the response is empty, and break if it is
            [ -z "$response" ] && break

            changed_files+=$(echo "$response" | grep -o '"filename": *"[^"]*"' | sed 's/"filename": *//; s/"//g')$'\n'

            # Check if there are more pages, and quite if there aren't
            [[ $(echo "$response" | jq '. | length') -lt 100 ]] && break

            page=$((page + 1))
          done

          # Check for matches and echo the matching files (or "" if none)
          matching_files=$(echo "$changed_files" | grep -E "^($pattern)" || echo "")
          if [[ -n "$matching_files" ]]; then
            echo "Found relevant files: $matching_files"
            echo "value=true" >> $GITHUB_OUTPUT
          else
            echo "No relevant files touched by this PR."
            echo "value=false" >> $GITHUB_OUTPUT
          fi
      - name: Retrieve PR labels
        id: get_labels
        run: |
          labels="${{ join(github.event.pull_request.labels.*.name, ',') }}"
          echo "labels=${labels}" >> $GITHUB_OUTPUT
  cpu-gcc:
    needs: [pre_process_pr]
    if: |
      !failure() && !cancelled() &&
      (
        github.event_name != 'pull_request' ||
        (
          needs.pre_process_pr.outputs.relevant_paths == 'true' &&
          !contains(needs.pre_process_pr.outputs.labels, 'CI: skip eamxx-all')
        )
      )
    runs-on:  [self-hosted, gcc, ghci-snl-cpu]
    steps:
      - name: Check out the repository
        uses: actions/checkout@v4
        with:
          persist-credentials: false
          show-progress: false
          submodules: recursive
      - name: Show action trigger
        uses: ./.github/actions/show-workflow-trigger
      - name: Run test
        run: |
          cd components/eamxx
          if [ ${{ github.event_name == 'schedule' }} ]; then
            ./scripts/scripts-ctest-driver -s -m ghci-snl-cpu
          else
            ./scripts/scripts-tests -f -m ghci-snl-cpu
            ./scripts/cime-nml-tests
          fi