Flag new user-visible log messages for review

Messages with log levels INFO or higher are flagged for manual review.
Purpose of this check is to prevent debug logs to being released with
too-high log level.

diff --git a/dangerfile.py b/dangerfile.py
index 430f260e4c3559593ff35cf96f2a51884edb2989..5a7b5647583e0e1c2238f10c00eafc6088047d09 100644 (file)
--- a/dangerfile.py
+++ b/dangerfile.py
@@ -273,3 +273,24 @@ annotations_added = lines_containing(configure_added_lines, '# [pairwise: ')
 if len(switches_added) > len(annotations_added):
     fail('This merge request adds at least one new `./configure` switch that '
          'is not annotated for pairwise testing purposes.')
+
+###############################################################################
+# USER-VISIBLE LOG LEVELS
+###############################################################################
+#
+# WARN if the merge request adds new user-visible log messages (INFO or above)
+
+user_visible_log_levels = [
+    'ISC_LOG_INFO',
+    'ISC_LOG_NOTICE',
+    'ISC_LOG_WARNING',
+    'ISC_LOG_ERROR',
+    'ISC_LOG_CRITICAL',
+]
+source_added_lines = added_lines(target_branch, ['*.[ch]'])
+for log_level in user_visible_log_levels:
+    if (lines_containing(source_added_lines, log_level)):
+        warn('This merge request adds new user-visible log messages with '
+             'level INFO or above. Please double-check log levels and make '
+             'sure none of the messages added is a leftover debug message.')
+        break