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.
60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
2 years ago
|
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) -> 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: Values, args: 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: str, algorithm: 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()
|