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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__pycache__ | Folder | 2755 |
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__init__.py | File | 4 KB | 0644 |
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cache.py | File | 5.54 KB | 0644 |
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check.py | File | 1.64 KB | 0644 |
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completion.py | File | 3.01 KB | 0644 |
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configuration.py | File | 9.13 KB | 0644 |
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debug.py | File | 7.14 KB | 0644 |
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download.py | File | 4.8 KB | 0644 |
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freeze.py | File | 3.37 KB | 0644 |
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hash.py | File | 1.8 KB | 0644 |
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help.py | File | 1.24 KB | 0644 |
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install.py | File | 27.34 KB | 0644 |
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list.py | File | 11.05 KB | 0644 |
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search.py | File | 5.62 KB | 0644 |
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show.py | File | 6.83 KB | 0644 |
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uninstall.py | File | 3.23 KB | 0644 |
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wheel.py | File | 6.27 KB | 0644 |
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