pylibswarm

Python3 wrapper for libswarm-ng
git clone git://git.defalsify.org/pylibswarm.git
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file.py (1495B)

      1 # standard imports
      2 import os
      3 import sys
      4 import argparse
      5 import logging
      6 
      7 # local imports
      8 from pylibswarm.io import Outputter
      9 
     10 
     11 logging.basicConfig(level=logging.WARNING)
     12 logg = logging.getLogger()
     13 
     14 argparser = argparse.ArgumentParser()
     15 argparser.add_argument('-n', action='store_true', help='skip newline at end of output')
     16 argparser.add_argument('-b', action='store_true', help='output raw bytes')
     17 argparser.add_argument('--prepend-hash', dest='prepend_hash', action='store_true', help='prepend hash bytes to chunk output (no effect without -o)')
     18 argparser.add_argument('-o', type=str, help='chunk output location')
     19 argparser.add_argument('-v', action='store_true', help='verbose output')
     20 argparser.add_argument('-vv', action='store_true', help='very verbose output')
     21 argparser.add_argument('file', nargs='?', type=str, help='file to hash')
     22 largs = argparser.parse_args(sys.argv[1:])
     23 
     24 
     25 if largs.vv:
     26     logg.setLevel(logging.DEBUG)
     27 elif largs.v:
     28     logg.setLevel(logging.INFO)
     29 
     30 filepath = os.path.realpath(largs.file)
     31 
     32 outputter = None
     33 if largs.o:
     34     outputter = Outputter(largs.o, prepend_hash=largs.prepend_hash)
     35 
     36 def main():
     37     import swarm
     38 
     39     if outputter:
     40         r = swarm.filehash_path(filepath, outputter.dump)
     41     else:
     42         r = swarm.filehash_path(filepath)
     43 
     44     if largs.b:
     45         sys.stdout.buffer.write(r[:32])
     46     else:
     47         s = '{}'.format(r[:32].hex())
     48         if not largs.n:
     49             s += '\n'
     50         sys.stdout.write(s)
     51 
     52 
     53 if __name__ == '__main__':
     54     main()