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executable file 54 lines (41 sloc) 1.438 kB
#!/usr/bin/env python
#
## Natural Language Toolkit: substitute a pattern with a replacement in every file
#
# Copyright (C) 2001-2012 NLTK Project
# Author: Edward Loper <edloper@gradient.cis.upenn.edu>
# Steven Bird <sb@csse.unimelb.edu.au>
# URL: <http://www.nltk.org/>
# For license information, see LICENSE.TXT
# NB Should work on all platforms, http://www.python.org/doc/2.5.2/lib/os-file-dir.html
import os, stat, sys
def update(file, pattern, replacement, verbose=False):
if verbose:
print "Updating:", file
# make sure we can write the file
old_perm = os.stat(file)[0]
if not os.access(file, os.W_OK):
os.chmod(file, old_perm | stat.S_IWRITE)
# write the file
s = open(file, 'rb').read()
t = s.replace(pattern, replacement)
out = open(file, 'wb')
out.write(t)
out.close()
# restore permissions
os.chmod(file, old_perm)
return s != t
if __name__ == '__main__':
if len(sys.argv) != 3:
exit("Usage: %s <pattern> <replacement>" % sys.argv[0])
pattern = sys.argv[1]
replacement = sys.argv[2]
count = 0
for root, dirs, files in os.walk('.'):
if '/.git' not in root:
for file in files:
path = os.path.join(root, file)
if update(path, pattern, replacement):
print "Updated:", path
count += 1
print "Updated %d files" % count
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