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#!/usr/bin/env python
# -*- coding: utf-8 -*-
##=============================================================================
#
# Copyright (C) 2003, 2011 Alessandro Duca <alessandro.duca@gmail.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#=============================================================================
#
##=============================================================================
import sys
import os
import os.path
import yenc
import getopt
from stat import *
from binascii import crc32
def main():
try:
opts, args = getopt.getopt(sys.argv[1:], "o:")
except getopt.GetoptError:
usage()
try: # Python 3
file_out = sys.stdout.buffer
except AttributeError: # Python < 3
file_out = sys.stdout
for o,a in opts:
if o == '-o':
file_out = open(a,"wb")
if args:
filename = args[0]
if not os.access( filename, os.F_OK | os.R_OK ):
sys.stderr.write("couldn't access %s\n" % filename)
sys.exit(2)
else:
usage()
with open(filename,"rb") as file_in:
crc = "%x"%(0xFFFFFFFF & crc32(file_in.read()))
name = os.path.split(filename)[1]
size = os.stat(filename)[ST_SIZE]
line = "=ybegin line=128 size=%d crc32=%s name=%s\r\n"
file_out.write((line % (size, crc, name)).encode("ascii"))
with open(filename, "rb") as file_in:
encoder = yenc.Encoder(file_out)
while True:
data_in = file_in.read(1024)
encoder.feed(data_in)
encoder.flush()
if len(data_in) < 1024: break
encoder.terminate()
encoder.flush()
line = "=yend size=%d crc32=%s\r\n" % (size, encoder.getCrc32())
file_out.write(line.encode("ascii"))
def usage():
sys.stderr.write("Usage: yencode_Encoder.py <-o outfile> filename\n")
sys.exit(1)
if __name__ == "__main__":
main()
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