name: List blobs
inputs:
- {name: GCS path, type: URI, description: 'GCS path for listing. For recursive listing use the "gs://bucket/path/**" syntax".'}
outputs:
- {name: Paths}
metadata:
    annotations:
        volatile_component: 'true'
implementation:
    container:
        image: google/cloud-sdk
        command:
        - sh
        - -ex
        - -c
        - |
            if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
                gcloud auth activate-service-account --key-file="${GOOGLE_APPLICATION_CREDENTIALS}"
            fi
            mkdir -p "$(dirname "$1")"
            gsutil ls "$0" > "$1"
        - inputValue: GCS path
        - outputPath: Paths