clean-pr-cache.yml

name: Clean PR Cache

on:
  workflow_call:
    inputs:
      repo-name:
        description: 'The name of the repo.'
        required: true
        type: string
      branch:
        description: 'The name of the branch.'
        required: true
        type: string
    secrets:
      github-token:
        description: 'The GitHub PAT token to perform checkout and publish.'
        required: true

jobs:
  cleanup:
    runs-on: ubuntu-latest
    steps:
      - name: Check out code
        uses: actions/checkout@v4
      - name: Cleanup
        run: |
          gh extension install actions/gh-actions-cache
          
          REPO=${{ inputs.repo-name }}
          BRANCH=${{ inputs.branch }}

          echo "Fetching list of cache key"
          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH | cut -f 1 )

          ## Setting this to not fail the workflow while deleting cache keys. 
          set +e
          echo "Deleting caches..."
          for cacheKey in $cacheKeysForPR
          do
              gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm
          done
          echo "Done"
        env:
          GH_TOKEN: ${{secrets.github-token}}