cleanup-cache.yml

name: Cleanup - Delete branch buildcache

on:
  delete:

permissions:
  packages: write

jobs:
  cleanup-buildcache:
    if: github.event.ref_type == 'branch'
    runs-on: ubuntu-24.04-arm
    strategy:
      fail-fast: false
      matrix:
        image:
          # Base images
          - ghcr.io/${{ github.repository_owner }}/app-bricks/base
          - ghcr.io/${{ github.repository_owner }}/app-bricks/python-base
          - ghcr.io/${{ github.repository_owner }}/app-bricks/python-apps-base
          # AI Hub models
          - ghcr.io/${{ github.repository_owner }}/app-bricks/aihub-models-runner
          - ghcr.io/${{ github.repository_owner }}/app-bricks/ei-models-runner
          - ghcr.io/${{ github.repository_owner }}/app-bricks/llamacpp-models-runner
          - ghcr.io/${{ github.repository_owner }}/app-bricks/ollama-models-runner
          - ghcr.io/${{ github.repository_owner }}/app-bricks/gesture-recognition

    steps:
      - name: Delete buildcache for branch ${{ github.event.ref }}
        run: |
          # Extract branch name (remove refs/heads/ prefix if present)
          BRANCH_NAME="${{ github.event.ref }}"
          BRANCH_NAME="${BRANCH_NAME#refs/heads/}"

          # Convert branch name to safe tag format (replace / with -)
          CACHE_TAG="${BRANCH_NAME//\//-}-buildcache"

          echo "Attempting to delete cache tag: $CACHE_TAG for image: ${{ matrix.image }}"

          # Use GitHub API to delete the package version
          PACKAGE_NAME=$(echo "${{ matrix.image }}" | cut -d'/' -f3-)

          # Get the package version ID for the cache tag
          VERSION_ID=$(curl -s -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
            -H "Accept: application/vnd.github.v3+json" \
            "https://api.github.com/orgs/${{ github.repository_owner }}/packages/container/${PACKAGE_NAME}/versions" \
            | jq -r --arg tag "${CACHE_TAG}" '.[]? | select((.metadata.container.tags? // []) | index($tag) != null) | .id')

          if [ -n "$VERSION_ID" ] && [ "$VERSION_ID" != "null" ]; then
            echo "Found cache version ID: $VERSION_ID. Deleting..."
            curl -X DELETE \
              -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
              -H "Accept: application/vnd.github.v3+json" \
              "https://api.github.com/orgs/${{ github.repository_owner }}/packages/container/${PACKAGE_NAME}/versions/${VERSION_ID}"
            echo "Deleted cache tag: $CACHE_TAG"
          else
            echo "No cache found for tag: $CACHE_TAG (this is normal if the branch never built)"
          fi