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/opt/alt/python37/lib/python3.7/site-packages/pip/_internal/commands/hash.py

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from __future__ import absolute_import

import hashlib
import logging
import sys

from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.utils.hashes import FAVORITE_HASH, STRONG_HASHES
from pip._internal.utils.misc import read_chunks, write_output
from pip._internal.utils.typing import MYPY_CHECK_RUNNING

if MYPY_CHECK_RUNNING:
    from optparse import Values
    from typing import List

logger = logging.getLogger(__name__)

class HashCommand(Command):
    """
    Compute a hash of a local package archive.

These can be used with --hash in a requirements file to do repeatable
    installs.
    """

usage = '%prog [options] <file> ...'
    ignore_require_venv = True

def add_options(self):
        # type: () -> None
        self.cmd_opts.add_option(
            '-a', '--algorithm',
            dest='algorithm',
            choices=STRONG_HASHES,
            action='store',
            default=FAVORITE_HASH,
            help='The hash algorithm to use: one of {}'.format(
                 ', '.join(STRONG_HASHES)))
        self.parser.insert_option_group(0, self.cmd_opts)

def run(self, options, args):
        # type: (Values, List[str]) -> int
        if not args:
            self.parser.print_usage(sys.stderr)
            return ERROR

algorithm = options.algorithm
        for path in args:
            write_output('%s:\n--hash=%s:%s',
                         path, algorithm, _hash_of_file(path, algorithm))
        return SUCCESS

def _hash_of_file(path, algorithm):
    # type: (str, str) -> str
    """Return the hash digest of a file."""
    with open(path, 'rb') as archive:
        hash = hashlib.new(algorithm)
        for chunk in read_chunks(archive):
            hash.update(chunk)
    return hash.hexdigest()

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Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2024-03-03 22:57:12	Edit Download recursive recursive
cache.py	5.54 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
check.py	1.64 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
completion.py	3.01 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
configuration.py	9.13 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
debug.py	7.14 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
download.py	4.80 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
freeze.py	3.37 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
hash.py	1.80 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
help.py	1.24 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
install.py	28.05 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
list.py	11.05 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
search.py	5.62 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
show.py	6.83 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
uninstall.py	3.23 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
wheel.py	6.27 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive
__init__.py	4.00 KB	lrw-r--r--	2023-11-13 21:31:06	Edit Download recursive recursive

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