retrieve_cache.yml

name: retrieve latest data cache key

on:
  workflow_call:
    inputs:
      cache_path:
        type: string
        required: false
        default: ""
    outputs:
      cache_key:
        value: ${{ jobs.retrieve_cache.outputs.cache_key }}
      cache_path:
        value: ${{ jobs.retrieve_cache.outputs.cache_path }}

jobs:
  retrieve_cache:
    name: retrieve latest data cache key
    runs-on: ubuntu-latest
    steps:
      - id: cache_path
        run: echo cache_path=${{ inputs.cache_path != '' && inputs.cache_path || format('{0}/data', runner.temp) }} >> $GITHUB_OUTPUT
      - name: retrieve latest data cache key
        id: latest_cache_key
        run: |
          # use actions/gh-actions-cache to allow filtering by key
          gh extension install actions/gh-actions-cache
          CACHE_KEY=$(gh actions-cache list -R ${{ github.repository }} --key data- --sort created-at | cut -f 1 | head -n 1)
          if [ "$CACHE_KEY" == '' ]; then exit 1; fi
          echo cache_key=$CACHE_KEY >> $GITHUB_OUTPUT
        env:
          GH_TOKEN: ${{ github.token }}
      - run: echo cache_key=${{ steps.latest_cache_key.outputs.cache_key }}
      - run: echo cache_path=${{ steps.cache_path.outputs.cache_path }}
    outputs:
      cache_key: ${{ steps.latest_cache_key.outputs.cache_key }}
      cache_path: ${{ steps.cache_path.outputs.cache_path }}