libs/histogram/test/check_odr_test.py

   1 # Copyright 2019 Hans Dembinski, Henry Schreiner
   2 #
   3 # Distributed under the Boost Software License, Version 1.0.
   4 # (See accompanying file LICENSE_1_0.txt
   5 # or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 import os
   8 import sys
   9 import re
  10
  11 this_path = os.path.dirname(__file__)
  12
  13 all_headers = set()
  14 include_path = os.path.join(this_path, "..", "include")
  15 for root, dirs, files in os.walk(include_path):
  16     for fn in files:
  17         fn = os.path.join(root, fn)
  18         assert fn.startswith(include_path)
  19         fn = fn[len(include_path) + 1 :]
  20         all_headers.add(fn)
  21
  22
  23 def get_headers(filename):
  24     with open(filename) as f:
  25         for hdr in re.findall('^#include [<"]([^>"]+)[>"]', f.read(), re.MULTILINE):
  26             if not hdr.startswith("boost/histogram"):
  27                 continue
  28             yield hdr.replace("/", os.path.sep)  # adapt the paths for Windows
  29
  30
  31 included_headers = set()
  32 unread_headers = set()
  33 for hdr in get_headers(os.path.join(this_path, "odr_test.cpp")):
  34     unread_headers.add(hdr)
  35
  36 while unread_headers:
  37     included_headers.update(unread_headers)
  38     for hdr in tuple(unread_headers):  # copy needed because unread_headers is modified
  39         unread_headers.remove(hdr)
  40         for hdr2 in get_headers(os.path.join(include_path, hdr)):
  41             if hdr2 not in included_headers:
  42                 unread_headers.add(hdr2)
  43
  44 diff = sorted(all_headers - set(included_headers))
  45
  46 if not diff:
  47     sys.exit(0)
  48
  49
  50 print("Header not included in odr_test.cpp:")
  51 for fn in diff:
  52     print(fn)
  53
  54 sys.exit(1)