script/compare_cc_results.py

   1 #!/usr/bin/env python3
   2
   3 #
   4 # Compare the results of native and cross-compiled configure tests
   5 #
   6
   7 from __future__ import print_function
   8 import sys
   9 import difflib
  10
  11 exceptions = [
  12     'BUILD_DIRECTORY', 'SELFTEST_PREFIX', 'defines',
  13     'CROSS_COMPILE', 'CROSS_ANSWERS', 'CROSS_EXECUTE',
  14     'LIBSOCKET_WRAPPER_SO_PATH',
  15     'LIBNSS_WRAPPER_SO_PATH',
  16     'LIBPAM_WRAPPER_SO_PATH',
  17     'PAM_SET_ITEMS_SO_PATH',
  18     'LIBUID_WRAPPER_SO_PATH',
  19     'LIBRESOLV_WRAPPER_SO_PATH',
  20 ]
  21
  22 base_lines = list()
  23 base_fname = ''
  24
  25 found_diff = False
  26
  27 for fname in sys.argv[1:]:
  28     lines = list()
  29     f = open(fname, 'r')
  30     for line in f:
  31         if line.startswith("cfg_files ="):
  32             # waf writes configuration files as absolute paths
  33             continue
  34         if len(line.split('=', 1)) == 2:
  35             key = line.split('=', 1)[0].strip()
  36             value = line.split('=', 1)[1].strip()
  37             if key in exceptions:
  38                 continue
  39             # using waf with python 3.4 seems to randomly sort dict keys
  40             # we can't modify the waf code but we can fake a dict value
  41             # string representation as if it were sorted. python 3.6.5
  42             # doesn't seem to suffer from this behaviour
  43             if value.startswith('{'):
  44                 import ast
  45                 amap = ast.literal_eval(value)
  46                 fakeline = ""
  47                 for k in sorted(amap.keys()):
  48                     if not len(fakeline) == 0:
  49                         fakeline = fakeline + ", "
  50                     fakeline = fakeline + '\'' + k + '\': \'' + amap[k] + '\''
  51                 line = key + ' = {' + fakeline + '}'
  52         lines.append(line)
  53     f.close()
  54     if base_fname:
  55         diff = list(difflib.unified_diff(base_lines, lines, base_fname, fname))
  56         if diff:
  57             print('configuration files %s and %s do not match' % (base_fname, fname))
  58             for l in diff:
  59                 sys.stdout.write(l)
  60             found_diff = True
  61     else:
  62         base_fname = fname
  63         base_lines = lines
  64
  65 if found_diff:
  66     sys.exit(1)