apply-boilerplate.py

#!/usr/bin/python

import os.path

SKIP_DIRS = ('.svn', 'external')
BOILERPLATE = open('BOILERPLATE', 'r').read()

def apply_boilerplate(arg, dirname, fnames):
  for i, name in list(enumerate(fnames)):
    if name in SKIP_DIRS:
      del fnames[i]
    elif name.endswith('.java'):
      path = os.path.join(dirname, name)
      ensure_has_boilerplate(path)

def ensure_has_boilerplate(path):
  content = open(path, 'r').read()
  if content.find(BOILERPLATE.strip()) == -1:
    content = BOILERPLATE + content
    fout = open(path, 'w')
    fout.write(content)
    fout.close()

for dir in ('wiki-src', 'renderer-src', 'webtests'):
  os.path.walk(dir, apply_boilerplate, None)