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
   8 headerSet = set()
   9 a = subprocess.Popen("git ls-files include/", stdout=subprocess.PIPE, shell=True)
  10 with a.stdout as txt:
  11     for line in txt:
  12         header = line[8:].strip()
  13         if b"README" in header:
  14             continue
  15         if header == b"version.hrc":
  16             continue
  17         # ignore URE headers
  18         if header.startswith(b"IwyuFilter_include.yaml"):
  19             continue
  20         if header.startswith(b"cppu/"):
  21             continue
  22         if header.startswith(b"cppuhelper/"):
  23             continue
  24         if header.startswith(b"osl/"):
  25             continue
  26         if header.startswith(b"sal/"):
  27             continue
  28         if header.startswith(b"salhelper/"):
  29             continue
  30         if header.startswith(b"uno/"):
  31             continue
  32         headerSet.add(header)
  33
  34 headerSetUnused = headerSet.copy()
  35 headerSetOnlyInOwnModule = headerSet.copy()
  36 a = subprocess.Popen("git grep '^#include <'", stdout=subprocess.PIPE, shell=True)
  37 with a.stdout as txt:
  38     for line in txt:
  39         idx1 = line.find(b"#include <")
  40         idx2 = line.find(b">", idx1 + 10)
  41         include = line[idx1 + 10 : idx2]
  42         headerSetUnused.discard(include)
  43         #
  44         idx1 = line.find(b"/")
  45         includedFromModule = line[0 : idx1]
  46         idx1 = include.find(b"/")
  47         module = include[0 : idx1]
  48         if module != includedFromModule:
  49             headerSetOnlyInOwnModule.discard(include)
  50
  51 print("completely unused")
  52 print("----------------------------")
  53 for x in sorted(headerSetUnused):
  54     print(x)
  55 print("")
  56 print("only used in own module")
  57 print("----------------------------")
  58 for x in sorted(headerSetOnlyInOwnModule):
  59     print(x)