clear_cache.yml

name: Clear gh caches

on:
  workflow_dispatch:

permissions:
  actions: write

jobs:
  cleanup:
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v3
        
      - name: Cleanup
        run: |
          gh extension install actions/gh-actions-cache
          
          REPO=${{ github.repository }}

          echo "Fetching list of cache key"
          echo "Note no more than 100 results will be returned, you might want to run this workflow multiple times"
          allCacheKeys=$(gh actions-cache list -R $REPO -L 100 | cut -f 1 )

          ## Setting this to not fail the workflow while deleting cache keys. 
          set +e
          IFS=$'\n'
          echo "Deleting caches..."
          for cacheKey in $allCacheKeys
          do
              echo $cacheKey
              gh actions-cache delete "$cacheKey" -R $REPO --confirm
          done
          echo "Done"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}