name: Pull Test Runner Image
description: Login to GHCR and pull the pre-built test runner image for integration/e2e tests

inputs:
  github_token:
    description: "GitHub token for GHCR authentication"
    required: true
  commit_sha:
    description: "Commit SHA used to tag the test runner image"
    required: true

runs:
  using: composite
  steps:
    - name: Login to GitHub Container Registry
      uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ inputs.github_token }}

    - name: Pull and tag test runner image
      shell: bash
      run: |
        RUST_VERSION=$(grep '^channel = ' rust-toolchain.toml | cut -d'"' -f2)
        REMOTE_IMAGE="ghcr.io/${{ github.repository }}/test-runner:${{ inputs.commit_sha }}"
        LOCAL_IMAGE="vector-test-runner-${RUST_VERSION}:latest"

        docker pull "${REMOTE_IMAGE}"
        docker tag "${REMOTE_IMAGE}" "${LOCAL_IMAGE}"