contrib/cov-blame

   1 #!/usr/bin/python
   2
   3 import os
   4 import re
   5 import subprocess
   6 import sys
   7
   8 def handle_file(source_fname, cov_fname):
   9
  10    lines_blm = subprocess.Popen(["git", "blame", source_fname], stdout=subprocess.PIPE).stdout.readlines()
  11    lines_cov = open(cov_fname).readlines()
  12
  13    # XXXX expensive!
  14    while re.match(r'\s*-:\s*0:', lines_cov[0]):
  15       del lines_cov[0]
  16
  17    if len(lines_blm) != len(lines_cov):
  18       print >>sys.stderr, "MISMATCH IN NUMBER OF LINES in",source_fname
  19
  20    for b,c in zip(lines_blm, lines_cov):
  21       m = re.match(r'\s*([^\s:]+):', c)
  22       if not m:
  23          print >>sys.stderr, "CONFUSING LINE %r"% c
  24          cov = 'X'
  25       elif m.group(1) == '-':
  26          cov = '-'
  27       elif m.group(1)[0] == '#':
  28          cov = '#'
  29       elif m.group(1)[0].isdigit():
  30          cov = '1'
  31       else:
  32          print >>sys.stderr, "CONFUSING LINE %r"% c
  33          cov = 'X'
  34
  35       print cov, b,
  36
  37 COV_DIR = sys.argv[1]
  38 SOURCES = sys.argv[2:]
  39
  40 for fn in SOURCES:
  41    _, base = os.path.split(fn)
  42    cfn = os.path.join(COV_DIR, base)
  43    cfn += ".gcov"
  44    if os.path.exists(cfn):
  45       handle_file(fn, cfn)
  46    else:
  47       print >>sys.stderr, "NO FILE EXISTS CALLED ",cfn
  48