You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
import hashlib
|
|
import logging
|
|
import sys
|
|
from optparse import Values
|
|
from typing import List
|
|
|
|
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
|
|
|
|
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()
|