Python/apps/py-cutils: shasum.py annotate

annotate shasum.py @ 12:5e2c9123f93f

Implemented digest verification: -c or --check option

author	Franz Glasner <fzglas.hg@dom66.de>
date	Fri, 04 Dec 2020 17:37:56 +0100
parents	15c3416d3677
children	db64e282b049

rev	line source
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	1 r"""
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	2 :Author: Franz Glasner
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	3 :Copyright: (c) 2020 Franz Glasner.
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	4 All rights reserved.
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	5 :License: BSD 3-Clause "New" or "Revised" License.
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	6 See :ref:`LICENSE <license>` for details.
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	7 If you cannot find LICENSE see
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	8 <https://opensource.org/licenses/BSD-3-Clause>
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	9 :ID: @(#) HGid$
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	10
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	11 """
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	12
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	13 from __future__ import print_function
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	14
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	15 import argparse
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	16 import hashlib
12 5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	17 import io
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	18 import re
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	19 import sys
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	20
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	21
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	22 PY2 = sys.version_info[0] < 3
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	23
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	24 CHUNK_SIZE = 1024 * 1024 * 1024
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	25
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	26
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	27 def main(argv=None):
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	28 aparser = argparse.ArgumentParser(
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	29 description="Python implementation of shasum",
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	30 fromfile_prefix_chars='@')
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	31 aparser.add_argument(
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	32 "--algorithm", "-a", action="store", type=argv2algo,
8 048b97213a23 Change the default algorithm to SHA1 to be compatible with Perl's shasum Franz Glasner <fzglas.hg@dom66.de> parents: 7 diff changeset	33 help="1 (default), 224, 256, 384, 512, 3-224, 3-256, 3-384, 3-512, blake2b, blake2s, md5")
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	34 aparser.add_argument(
3 5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	35 "--binary", "-b", action="store_false", dest="text_mode", default=False,
5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	36 help="read in binary mode (default)")
5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	37 aparser.add_argument(
9 81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	38 "--bsd", "-B", action="store_true", dest="bsd", default=False,
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	39 help="write BSD style output; also :command:`openssl dgst` style")
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	40 aparser.add_argument(
12 5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	41 "--check", "-c", action="store_true",
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	42 help="read digests from FILEs and check them")
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	43 aparser.add_argument(
9 81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	44 "--reverse", "-r", action="store_false", dest="bsd", default=False,
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	45 help="explicitely select normal coreutils style output (to be option compatible with BSD style commands and :command:`openssl dgst -r`)")
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	46 aparser.add_argument(
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	47 "--tag", action="store_true", dest="bsd", default=False,
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	48 help="alias for the `--bsd' option (to be compatible with :command:`b2sum`)")
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	49 aparser.add_argument(
3 5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	50 "--text", "-t", action="store_true", dest="text_mode", default=False,
6 a21e83c855cc Help message: drop "yet" for text-mode flag Franz Glasner <fzglas.hg@dom66.de> parents: 5 diff changeset	51 help="read in text mode (not supported)")
3 5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	52 aparser.add_argument(
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	53 "files", nargs="*", metavar="FILE")
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	54
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	55 opts = aparser.parse_args(args=argv)
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	56
3 5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	57 if opts.text_mode:
5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	58 print("ERROR: text mode not supported", file=sys.stderr)
5a6ed622846c Add comman line switches for reading in binary and text mode Franz Glasner <fzglas.hg@dom66.de> parents: 2 diff changeset	59 sys.exit(78) # :manpage:`sysexits(3)` EX_CONFIG
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	60
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	61 if not opts.algorithm:
8 048b97213a23 Change the default algorithm to SHA1 to be compatible with Perl's shasum Franz Glasner <fzglas.hg@dom66.de> parents: 7 diff changeset	62 opts.algorithm = argv2algo("1")
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	63
10 77446cd3ea6f Move the digest generation loop from "main()" into an own function "generate_digests()". Franz Glasner <fzglas.hg@dom66.de> parents: 9 diff changeset	64 if not opts.files:
77446cd3ea6f Move the digest generation loop from "main()" into an own function "generate_digests()". Franz Glasner <fzglas.hg@dom66.de> parents: 9 diff changeset	65 opts.files.append('-')
12 5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	66 if opts.check:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	67 return verify_digests_from_files(opts)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	68 else:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	69 return generate_digests(opts)
10 77446cd3ea6f Move the digest generation loop from "main()" into an own function "generate_digests()". Franz Glasner <fzglas.hg@dom66.de> parents: 9 diff changeset	70
77446cd3ea6f Move the digest generation loop from "main()" into an own function "generate_digests()". Franz Glasner <fzglas.hg@dom66.de> parents: 9 diff changeset	71
77446cd3ea6f Move the digest generation loop from "main()" into an own function "generate_digests()". Franz Glasner <fzglas.hg@dom66.de> parents: 9 diff changeset	72 def generate_digests(opts):
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	73 if opts.bsd:
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	74 out = out_bsd
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	75 else:
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	76 out = out_std
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	77 if len(opts.files) == 1 and opts.files[0] == '-':
4 67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	78 if PY2:
67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	79 if sys.platform == "win32":
11 15c3416d3677 FIX: "msvcrt" is a top-level module on Windows Franz Glasner <fzglas.hg@dom66.de> parents: 10 diff changeset	80 import os, msvcrt # noqa: E401
4 67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	81 msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	82 source = sys.stdin
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	83 else:
4 67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	84 source = sys.stdin.buffer
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	85 out(sys.stdout,
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	86 compute_digest(opts.algorithm[0], source),
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	87 None,
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	88 opts.algorithm[1],
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	89 True)
4 67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	90 else:
67d10529ce88 FIX: "-" filename handling now consistent with Perl shasum Franz Glasner <fzglas.hg@dom66.de> parents: 3 diff changeset	91 for fn in opts.files:
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	92 with open(fn, "rb") as source:
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	93 out(sys.stdout,
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	94 compute_digest(opts.algorithm[0], source),
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	95 fn,
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	96 opts.algorithm[1],
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	97 True)
12 5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	98 return 0
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	99
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	100
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	101 def verify_digests_from_files(opts):
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	102 exit_code = 0
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	103 if len(opts.files) == 1 and opts.files[0] == '-':
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	104 for checkline in sys.stdin:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	105 if not checkline:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	106 continue
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	107 r, fn = handle_checkline(opts, checkline)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	108 print("{}: {}".format(fn, r.upper()))
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	109 if r != "ok" and exit_code == 0:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	110 exit_code = 1
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	111 else:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	112 for fn in opts.files:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	113 with io.open(fn, "rt", encoding="utf-8") as checkfile:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	114 for checkline in checkfile:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	115 if not checkline:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	116 continue
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	117 r, fn = handle_checkline(opts, checkline)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	118 print("{}: {}".format(fn, r.upper()))
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	119 if r != "ok" and exit_code == 0:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	120 exit_code = 1
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	121 return exit_code
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	122
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	123
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	124 def handle_checkline(opts, line):
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	125 """
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	126 :return: a tuple with static "ok", "missing", or "failed" and the filename
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	127 :rtype: tuple(str, str)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	128
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	129 """
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	130 # determine checkfile format (BSD or coreutils)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	131 # BSD?
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	132 mo = re.search(r"\A(\S+)\s$(.)$\s=\s(.+)\n?\Z", line)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	133 if mo:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	134 algo = algotag2algotype(mo.group(1))
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	135 fn = mo.group(2)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	136 digest = mo.group(3)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	137 else:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	138 mo = re.search(r"([^\ ]+) [\*\ ]?(.+)\n?\Z", line)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	139 if mo:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	140 algo = opts.algorithm[0]
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	141 fn = mo.group(2)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	142 digest = mo.group(1)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	143 else:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	144 raise ValueError(
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	145 "improperly formatted digest line: {}".format(line))
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	146 try:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	147 with open(fn, "rb") as input:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	148 d = compute_digest(algo, input)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	149 if d.lower() == digest.lower():
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	150 return ("ok", fn)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	151 else:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	152 return ("failed", fn)
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	153 except EnvironmentError:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	154 return ("missing", fn)
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	155
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	156
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	157 def argv2algo(s):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	158 """Convert a commane line algorithm specifier into a tuple with the
12 5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	159 type/factory of the digest and the algorithms tag for output purposes.
7 47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	160
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	161 :param str s: the specifier from the commane line
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	162 :return: the internal digest specification
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	163 :rtype: a tuple (digest_type_or_factory, name_in_output)
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	164
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	165 String comparisons are done case-insensitively.
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	166
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	167 """
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	168 s = s.lower()
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	169 if s in ("1", "sha1"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	170 return (hashlib.sha1, "SHA1")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	171 elif s in ("224", "sha224"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	172 return (hashlib.sha224, "SHA224")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	173 elif s in ("256", "sha256"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	174 return (hashlib.sha256, "SHA256")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	175 elif s in ("384", "sha384"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	176 return (hashlib.sha384, "SHA384")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	177 elif s in ("512", "sha512"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	178 return (hashlib.sha512, "SHA512")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	179 elif s in ("3-224", "sha3-224"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	180 return (hashlib.sha3_224, "SHA3-224")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	181 elif s in ("3-256", "sha3-256"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	182 return (hashlib.sha3_256, "SHA3-256")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	183 elif s in ("3-384", "sha3-384"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	184 return (hashlib.sha3_384, "SHA3-384")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	185 elif s in ("3-512", "sha3-512"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	186 return (hashlib.sha3_512, "SHA3-512")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	187 elif s in ("blake2b", "blake2b-512"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	188 return (hashlib.blake2b, "BLAKE2b")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	189 elif s in ("blake2s", "blake2s-256"):
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	190 return (hashlib.blake2s, "BLAKE2s")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	191 elif s == "md5":
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	192 return (hashlib.md5, "MD5")
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	193 else:
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	194 raise argparse.ArgumentTypeError(
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	195 "`{}' is not a recognized algorithm".format(s))
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	196
47b4c98e4d40 Allow algorithm selection for all algorithms in :mod:`hashlib`. Franz Glasner <fzglas.hg@dom66.de> parents: 6 diff changeset	197
12 5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	198 def algotag2algotype(s):
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	199 """Convert the algorithm specifier in a BSD-style digest file to the
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	200 type/factory of the corresponding algorithm.
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	201
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	202 :param str s: the tag (i.e. normalized name) or the algorithm
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	203 :return: the digest type or factory for `s`
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	204
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	205 All string comparisons are case-sensitive.
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	206
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	207 """
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	208 if s == "SHA1":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	209 return hashlib.sha1
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	210 elif s == "SHA224":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	211 return hashlib.sha224
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	212 elif s == "SHA256":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	213 return hashlib.sha256
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	214 elif s == "SHA384":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	215 return hashlib.sha384
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	216 elif s == "SHA512":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	217 return hashlib.sha512
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	218 elif s == "SHA3-224":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	219 return hashlib.sha3_224
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	220 elif s == "SHA3-256":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	221 return hashlib.sha3_256
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	222 elif s == "SHA3-384":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	223 return hashlib.sha3_384
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	224 elif s == "SHA3-512":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	225 return hashlib.sha3_512
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	226 elif s == "BLAKE2b":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	227 return hashlib.blake2b
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	228 elif s == "BLAKE2s":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	229 return hashlib.blake2s
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	230 elif s == "MD5":
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	231 return hashlib.md5
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	232 else:
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	233 raise ValueError("unknown algorithm: {}".format(s))
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	234
5e2c9123f93f Implemented digest verification: -c or --check option Franz Glasner <fzglas.hg@dom66.de> parents: 11 diff changeset	235
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	236 def out_bsd(dest, digest, filename, digestname, binary):
9 81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	237 """BSD format output, also :command:`openssl dgst` and
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	238 :command:`b2sum --tag" format output
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	239
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	240 """
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	241 if filename is None:
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	242 print(digest, file=dest)
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	243 else:
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	244 print("{} ({}) = {}".format(digestname, filename, digest),
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	245 file=dest)
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	246
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	247
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	248 def out_std(dest, digest, filename, digestname, binary):
9 81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	249 """Coreutils format (:command:`shasum` et al.)
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	250
81f28bf89c26 Some more output selection options and documentation Franz Glasner <fzglas.hg@dom66.de> parents: 8 diff changeset	251 """
5 bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	252 print("{} {}{}".format(digest,
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	253 '*' if binary else ' ',
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	254 '-' if filename is None else filename),
bbcb225640de Handle standard and BSD-style output formats Franz Glasner <fzglas.hg@dom66.de> parents: 4 diff changeset	255 file=dest)
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	256
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	257
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	258 def compute_digest(hashobj, instream):
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	259 """
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	260
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	261 :param hashobj: a :mod:`hashlib` compatible hash algorithm type or factory
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	262 :param instream: a bytes input stream to read the data to be hashed from
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	263 :return: the digest in hex form
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	264 :rtype: str
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	265
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	266 """
2 5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	267 h = hashobj()
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	268 while True:
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	269 buf = instream.read(CHUNK_SIZE)
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	270 if buf is not None:
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	271 if len(buf) == 0:
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	272 break
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	273 h.update(buf)
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	274 return h.hexdigest()
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	275
5510a39a2d04 Basic hashing with proper binary stdin/stdout support for Py2, Py3 and Windows Franz Glasner <fzglas.hg@dom66.de> parents: 1 diff changeset	276
1 bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	277 if __name__ == "__main__":
bbf4e0f5b651 Begin the shasum.py script Franz Glasner <fzglas.hg@dom66.de> parents: diff changeset	278 sys.exit(main())

Mercurial > hgrepos > Python > apps > py-cutils

annotate shasum.py @ 12:5e2c9123f93f