bin/find-most-common-warn-messages.py

   1 #!/usr/bin/python3
   2
   3 # A script to search our test logs and sort the messages by how common they are so we can start to
   4 # reduce the noise a little.
   5
   6 import sys
   7 import re
   8 import io
   9 import subprocess
  10
  11 # find . -name '*.log' | xargs grep -h 'warn:' | sort | uniq -c | sort -n --field-separator=: --key=5,6
  12
  13 process = subprocess.Popen("find workdir -name '*.log' | xargs grep -h 'warn:' | sort",
  14                             shell=True, stdout=subprocess.PIPE, universal_newlines=True)
  15
  16 messages = dict() # dict of sourceAndLine->count
  17 sampleOfMessage = dict() # dict of sourceAndLine->string
  18 for line in process.stdout:
  19     line = line.strip()
  20     # a sample line is:
  21     #    warn:sw:18790:1:sw/source/core/doc/DocumentRedlineManager.cxx:98: redline table corrupted: overlapping redlines
  22     tokens = line.split(":")
  23     sourceAndLine = tokens[4] + ":" + tokens[5]
  24     if (sourceAndLine in messages):
  25         messages[sourceAndLine] = messages[sourceAndLine] + 1
  26     else:
  27         messages[sourceAndLine] = 1
  28         sampleOfMessage[sourceAndLine] = line[line.find(tokens[6]):]
  29
  30 tmplist = list() # set of tuple (count, sourceAndLine)
  31 for key, value in messages.items():
  32     tmplist.append([value,key])
  33
  34 print( "The top 20 warnings" )
  35 print("")
  36 for i in sorted(tmplist, key=lambda v: v[0])[-20:]:
  37     print( "%6d %s %s" % (i[0], i[1], sampleOfMessage[i[1]]) )
  38
  39