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