Explain empty report in compare_codereview.py.
Let user know when control and roll have no common trybots, instead of
being silent.
BUG=skia:
R=borenet@google.com
Author: halcanary@google.com
Review URL: https://codereview.chromium.org/135683003
git-svn-id: http://skia.googlecode.com/svn/trunk@13194 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/compare_codereview.py b/tools/compare_codereview.py
index 16f3a01..ae29096 100755
--- a/tools/compare_codereview.py
+++ b/tools/compare_codereview.py
@@ -325,12 +325,15 @@
# pylint: disable=I0011,R0914,R0912
control = CodeReviewHTMLParser.parse(control_url)
roll = CodeReviewHTMLParser.parse(roll_url)
- if not (control and roll):
+ all_bots = set(control) & set(roll) # Set intersection.
+ if not all_bots:
+ print >> sys.stderr, (
+ 'Error: control %s and roll %s have no common trybots.'
+ % (list(control), list(roll)))
return
control_name = '[control %s]' % control_url.split('/')[-1]
roll_name = '[roll %s]' % roll_url.split('/')[-1]
- all_bots = set(control) & set(roll) # Set intersection.
out = sys.stdout
if verbosity > 0: