rename file to SHA1

gistfile1.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
import re
import sys
import hashlib
import gio

def get_hash_of_sha1(fname):
  sha1 = hashlib.sha1()
  f = open(fname, 'rb')
  try:
    sha1.update(f.read())
  finally:
    f.close()
  return sha1.hexdigest()

def rename_file(fname):
  hashval = get_hash_of_sha1(fname)
  root, ext = os.path.splitext(fname)
  root = os.path.dirname(root)
  toname = '{0}{1}{2}'.format(root, hashval[0:8], ext)

  if fname == toname:
    print('pass: "{0}" is same name.'.format(fname))

  elif os.path.exists(toname):
    print('"{0}" is exists: go trash'.format(fname))
    obj = gio.File(fname)
    obj.trash()

  else:
    print('rename: {0} => {1}'.format(fname, toname))
    os.rename(fname, toname)

if __name__ == "__main__":
  for fname in sys.argv[1:]:
    try:
      rename_file(fname)
    except IOError as e:
      print '{0} => {1}'.format(fname, e)