update-comments

#! /usr/bin/env python

# Updates the copyright notices in CogTool source files. Rewrites all matching source
# files so that their initial copyright notices are as in the file supplied as the
# "notice" command line argument, which defaults to copyright.txt

import os
import os.path
import re
from optparse import OptionParser

patterns = {
  ".java": (re.compile("/\\*.*[\r\n]+.*CogTool Copyright Notice", re.IGNORECASE),                # hasCopyRight
            re.compile("/\\*.*?\\*/", re.DOTALL),                                                 # wholeNotice
            "/*******************************************************************************\n", # start
            " ******************************************************************************/",   # end
            " * ")                                                                                # prefix
}

def update(dir):
  for f in os.listdir(dir):
    if (f[:1] == "."):
      continue
    p = os.path.join(dir, f)
    if (os.path.isdir(p)):
      update(p)
    else:
      ext = os.path.splitext(f)[1]
      if not ext in patterns:
        continue
      hasCopyRight, wholeNotice, start, end, prefix = patterns[ext]
      strm = open(p, "r")
      try:
        contents = strm.read()
      finally:
        strm.close()
      if not re.match(hasCopyRight, contents):
        continue
      if (not options.quiet):
        print p
      out = open(p, "w")
      try:
        out.write(start)
        for line in noticeContents:
          out.write(prefix)
          out.write(line)
        out.write(end)
        out.write(re.sub(wholeNotice, "", contents, 1))
      finally:
        out.close()

parser = OptionParser()
parser.add_option("-n", "--notice", dest="notice", help="read copyright NOTICE from file", default="copyright.txt")
parser.add_option("-r", "--root", dest="root", help="update copyrights under this ROOT directory", default=".")
parser.add_option("-q", "--quiet", dest="quiet", help="be quiet and don't list files modified", default=False)
(options, args) = parser.parse_args()

strm = open(os.path.join(options.root, options.notice), "r")
try:
  noticeContents = strm.readlines()
finally:
  strm.close()

update(os.path.join(options.root, "java"))
update(os.path.join(options.root, "mac-support"))