llvm/utils/merge-stats.py

   1 #!/usr/bin/env python3
   2 '''
   3 Merge .stats files generated by llvm tools
   4
   5 merge-stats.py takes as argument a list of stats files to merge
   6 and output the result on stdout
   7
   8 Usage:
   9   merge-stats.py $(find ./builddir/ -name "*.stats") > total.stats
  10 '''
  11
  12 import json
  13 import sys
  14
  15 result = {}
  16
  17 for arg in range(1, len(sys.argv)):
  18   with open(sys.argv[arg], "r", encoding='utf-8',
  19             errors='ignore') as f:
  20     text = f.read()
  21     try:
  22       data = json.loads(text)
  23     except:
  24       print('ignored %s: failed to parse' % sys.argv[arg], file= sys.stderr)
  25       continue
  26     for key in data:
  27       if key in result:
  28         result[key] += data[key]
  29       else:
  30         result[key] = data[key]
  31
  32 out = json.dumps(result, indent=2)
  33 print(out)