fix: read from local file (#2474)

* fix: read from local file

* fix: GCS file

.cloud-build/utils/build_results_viewer.py

@@ -5,14 +5,22 @@ Cloud Storage location: gs://cloud-build-notebooks-presubmit/build_results/
 '''
 import argparse
 import json
+from  util import download_file
 
 
 parser = argparse.ArgumentParser()
 parser.add_argument('--file', dest='file',
                     default='build.json', type=str, help='build results file')
-import json
+args = parser.parse_args()
 
-with open('build.json', 'r') as f:
+if args.file.startswith("gs://"):
+    path = args.file[5:]
+    bucket = path.split('/')[0]
+    file   = path[len(bucket)+1:]
+    download_file(bucket, file, "build.json")
+    args.file = "build.json"
+
+with open(args.file, 'r') as f:
     results = json.load(f)
 
 for item in results.items():