Purge all credit signatures which are automatically created by IntelliJ

creditpurge.py

#!/usr/bin/env python

import os
import re

LIST_SUBMODULE_COMMAND = "awk /path\ =\ / .gitmodules|awk '{print $3}'"
SIGNATURE_INSET = "Created "
SIGNATURE_BEGIN = "/**"
SIGNATURE_END = " */"

REs = [
  r'''\s+\*\s*Created [^\n]*''',  # multiple lines credit
  r'''\*\*\s*Created '''          # one line credit
]

def submodules():
  (stdin, stdout, stderr) = os.popen3(LIST_SUBMODULE_COMMAND)
  return stdout.read().replace('\n', ',')

def authors():
  command  = '\grep -lrsI ' + SIGNATURE_INSET + ' --exclude-dir={' + submodules() + '}'
  (stdin, stdout, stderr) = os.popen3(command)
  return stdout.read().split()

def is_credit_text(credit_text):
  for line in credit_text.split('\n'):
    line = line.lstrip(' \t')
    if line.startswith('/**') or line.startswith('*'):
      continue
    else:
      return False
  return True

for RE in REs:
  for f in authors():
    with open(f) as infile:
      incontent = infile.read()

    markers = [m.span() for m in re.finditer(RE, incontent)]
    for marker in markers:
      begin = incontent.rfind(SIGNATURE_BEGIN, 0, marker[1])
      end = incontent.find(SIGNATURE_END, marker[1]) + len(SIGNATURE_END)
      credit_text = incontent[begin:end]

      if is_credit_text(credit_text):
        outcontent = incontent.replace(credit_text, '')
        if (incontent != outcontent):
          with open(f, 'w') as outfile:
            outfile.write(outcontent)

remain = authors()
print(str(len(remain)) + " holdouts...")
if len(remain) > 0:
  print("Next victim: " + remain[0])