bin/find-headers-to-move-inside-modules.py

   1 #!/usr/bin/python3
   2
   3 # Look for headers inside include/ that can be moved into their respective modules.
   4 # Not 100% accurate
   5
   6 import subprocess
   7 import sys
   8
   9 headerSet = set()
  10 a = subprocess.Popen("git ls-files include/", stdout=subprocess.PIPE, shell=True)
  11 with a.stdout as txt:
  12     for line in txt:
  13         header = line[8:].strip();
  14         if b"README" in header: continue
  15         if header == b"version.hrc": continue
  16         # ignore URE headers
  17         if header.startswith(b"IwyuFilter_include.yaml"): continue
  18         if header.startswith(b"cppu/"): continue
  19         if header.startswith(b"cppuhelper/"): continue
  20         if header.startswith(b"osl/"): continue
  21         if header.startswith(b"sal/"): continue
  22         if header.startswith(b"salhelper/"): continue
  23         if header.startswith(b"uno/"): continue
  24         # these are direct copies of mozilla code
  25         if header.startswith(b"onlineupdate/mozilla/"): continue
  26         headerSet.add(header)
  27
  28 headerSetUnused = headerSet.copy()
  29 headerSetOnlyInOwnModule = headerSet.copy()
  30 a = subprocess.Popen("git grep '^#include <'", stdout=subprocess.PIPE, shell=True)
  31 with a.stdout as txt:
  32     for line in txt:
  33         idx1 = line.find(b"#include <")
  34         idx2 = line.find(b">", idx1 + 10)
  35         include = line[idx1 + 10 : idx2]
  36         headerSetUnused.discard(include)
  37         #
  38         idx1 = line.find(b"/")
  39         includedFromModule = line[0 : idx1]
  40         idx1 = include.find(b"/")
  41         module = include[0 : idx1]
  42         if module != includedFromModule:
  43             headerSetOnlyInOwnModule.discard(include)
  44
  45 print("completely unused")
  46 print("----------------------------")
  47 for x in sorted(headerSetUnused):
  48     print(x)
  49 print("")
  50 print("only used in own module")
  51 print("----------------------------")
  52 for x in sorted(headerSetOnlyInOwnModule):
  53     print(x)