[Telemetry] Add PRESUBMIT check to prevent .sha file uploaded without archive file uploaded

tools/perf/PRESUBMIT.py

Index: tools/perf/PRESUBMIT.py
diff --git a/tools/perf/PRESUBMIT.py b/tools/perf/PRESUBMIT.py
index 7ac8a1831d5c7f738601cc403023e41a1b73fac2..cabde9cde28cc2b834ebe0ac57694139c26f5aa0 100644
--- a/tools/perf/PRESUBMIT.py
+++ b/tools/perf/PRESUBMIT.py
@@ -31,11 +31,38 @@ def _CommonChecks(input_api, output_api):
         black_list=PYLINT_BLACKLIST,
         disabled_warnings=PYLINT_DISABLED_WARNINGS))
     results.extend(_CheckJson(input_api, output_api))
+    results.extend(_CheckWprShaFiles(input_api, output_api))
   finally:
     sys.path = old_sys_path
   return results
 
 
+def _CheckWprShaFiles(input_api, output_api):
+  """Check whether the wpr sha files have matching URLs."""
+  from telemetry.util import cloud_storage
+  results = []
+  for affected_file in input_api.AffectedFiles(include_deletes=False):
+    filename = affected_file.AbsoluteLocalPath()
+    if not filename.endswith('wpr.sha1'):
+      continue
+    is_wpr_file_uploaded = False

[slamm, 2015/02/24 20:51:19]

Not needed.

[nednguyen, 2015/02/24 20:57:46]

Done.

+    expected_hash = cloud_storage.ReadHash(filename)
+    is_wpr_file_uploaded = any(
+        cloud_storage.Exists(bucket, expected_hash)
+        for bucket in cloud_storage.BUCKET_ALIASES.itervalues())
+    if not is_wpr_file_uploaded:
+      wpr_filename = filename[:-5]
+      results.append(output_api.PresubmitError(
+          'There is no URLs matched for wpr sha file %s.\n'
+          'You can upload your new wpr archive file with the command:\n'
+          'depot_tools/upload_to_google_storage.py --bucket '
+          '<Your pageset\'s bucket> %s.\nFor more info: see '
+          'http://www.chromium.org/developers/telemetry/'
+          'record_a_page_set#TOC-Upload-the-recording-to-Cloud-Storage' %
+          (filename, wpr_filename)))
+  return results
+
+
 def _CheckJson(input_api, output_api):
   """Checks whether JSON files in this change can be parsed."""
   for affected_file in input_api.AffectedFiles(include_deletes=False):