green-spider/screenshots.py

from google.cloud import datastore
import json
import sys
import os


def main():
    if len(sys.argv) == 1:
        print("Error: please provide path to Google Storage API system account JSON file as argument")
        sys.exit(1)

    key_path = sys.argv[1]
    client = datastore.Client.from_service_account_json(key_path)

    out = {}

    query = client.query(kind='webscreenshot')
    for item in query.fetch():
        print(item['url'], os.path.basename(item['screenshot_url']))
        out[item['url']] = os.path.basename(item['screenshot_url'])
    
    output_filename = "./webapp/dist/data/screenshots.json"
    with open(output_filename, 'w', encoding="utf8") as jsonfile:
        json.dump(out, jsonfile, indent=2, sort_keys=True, ensure_ascii=False)


if __name__ == "__main__":
    main()