tests/md5sum.py

parser: use PyInt_FromSsize_t in index_stats

Eliminates

  mercurial/parsers.c(515) : warning C4244: 'function' : conversion from
  'Py_ssize_t' to 'long', possible loss of data
  mercurial/parsers.c(520) : warning C4244: 'function' : conversion from
  'Py_ssize_t' to 'long', possible loss of data
  mercurial/parsers.c(521) : warning C4244: 'function' : conversion from
  'Py_ssize_t' to 'long', possible loss of data

when compiling for Windows x64 target using the Microsoft compiler.

PyInt_FromSsize_t does not exist for Python 2.4 and earlier, so we define a
fallback in util.h to use PyInt_FromLong when compiling for Python 2.4.

#!/usr/bin/env python
#
# Based on python's Tools/scripts/md5sum.py
#
# This software may be used and distributed according to the terms
# of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is
# GPL-compatible.

import sys, os

try:
    from hashlib import md5
except ImportError:
    from md5 import md5

try:
    import msvcrt
    msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
    msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError:
    pass

for filename in sys.argv[1:]:
    try:
        fp = open(filename, 'rb')
    except IOError, msg:
        sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))
        sys.exit(1)

    m = md5()
    try:
        while True:
            data = fp.read(8192)
            if not data:
                break
            m.update(data)
    except IOError, msg:
        sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))
        sys.exit(1)
    sys.stdout.write('%s  %s\n' % (m.hexdigest(), filename))

sys.exit(0)