buildscripts/find-superfluous-includes.py

   1 #!/usr/bin/python
   2 import sys
   3 import re
   4 import os
   5
   6
   7 full_paths = {}
   8 incs = {}
   9 inc_re = re.compile ('^#include "([^"]+)"')
  10 def parse_file (fn):
  11     lst = []
  12
  13     lc = 0
  14     for l in open (fn).readlines():
  15         lc += 1
  16         m = inc_re.search (l)
  17         if m:
  18             lst.append ((lc, m.group (1)))
  19
  20     base = os.path.split (fn)[1]
  21     full_paths[base] = fn
  22     incs[base] = lst
  23
  24
  25 def has_include (f, name):
  26     try:
  27         return name in [b for (a,b) in incs[f]]
  28     except KeyError:
  29         return False
  30
  31 for a in sys.argv:
  32     parse_file (a)
  33
  34 print '-*-compilation-*-'
  35 for (f, lst) in incs.items ():
  36     for (n, inc) in lst:
  37         for (n2, inc2) in lst:
  38             if has_include (inc2, inc):
  39                 print "%s:%d: already have %s from %s" % (full_paths[f], n,
  40                                                           inc, inc2)
  41                 break
  42
  43
  44