[telemetry] Automatic hash file creation and upload to Cloud Storage.

tools/telemetry/telemetry/page/page_set_archive_info.py

Index: tools/telemetry/telemetry/page/page_set_archive_info.py
diff --git a/tools/telemetry/telemetry/page/page_set_archive_info.py b/tools/telemetry/telemetry/page/page_set_archive_info.py
index 73c2f5fd65822063a820e480002a92d21e4face5..33502d8608658ba3c4ba15c586979459be13b502 100644
--- a/tools/telemetry/telemetry/page/page_set_archive_info.py
+++ b/tools/telemetry/telemetry/page/page_set_archive_info.py
@@ -7,6 +7,15 @@ import os
 import re
 import shutil
 
+from telemetry.page import cloud_storage
+
+
+def _UpdateHashFile(file_path):
+  with open(file_path + '.sha1', 'wb') as f:
+    f.write(cloud_storage.GetHash(file_path))
+    f.flush()
+
+
 class PageSetArchiveInfo(object):
   def __init__(self, archive_data_file_path, page_set_file_path, data):
     self._archive_data_file_path = archive_data_file_path
@@ -52,6 +61,7 @@ class PageSetArchiveInfo(object):
     for url in urls:
       self._SetWprFileForPage(url, target_wpr_file)
     shutil.move(self.temp_target_wpr_file_path, target_wpr_file_path)
+    _UpdateHashFile(target_wpr_file_path)
     self._WriteToFile()
     self._DeleteAbandonedWprFiles()
 
@@ -85,7 +95,7 @@ class PageSetArchiveInfo(object):
     metadata['page_set'] = os.path.relpath(self._page_set_file_path,
                                            self._archive_data_file_dir)
     metadata['archives'] = self._wpr_file_to_urls.copy()
-    # Don't write data for abandones archives.
+    # Don't write data for abandoned archives.
     abandoned_wpr_files = self._AbandonedWprFiles()
     for wpr_file in abandoned_wpr_files:
       del metadata['archives'][wpr_file]
@@ -93,6 +103,7 @@ class PageSetArchiveInfo(object):
     with open(self._archive_data_file_path, 'w') as f:
       json.dump(metadata, f, indent=4)
       f.flush()
+    _UpdateHashFile(self._archive_data_file_path)
 
   def _WprFileNameToPath(self, wpr_file):
     return os.path.abspath(os.path.join(self._archive_data_file_dir, wpr_file))