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author | 2022-11-13 23:46:45 +0530 | |
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committer | 2022-11-13 23:46:45 +0530 | |
commit | 9468226a9e2e2ab8cdd599f1d8538e860ca86120 (patch) | |
tree | 0a77ada226d6db80639f96b438bf83e4e756edb5 /env/lib/python3.10/site-packages/pip/_internal/commands/hash.py | |
download | idcard-9468226a9e2e2ab8cdd599f1d8538e860ca86120.tar.gz idcard-9468226a9e2e2ab8cdd599f1d8538e860ca86120.tar.bz2 idcard-9468226a9e2e2ab8cdd599f1d8538e860ca86120.zip |
id card generator
Diffstat (limited to 'env/lib/python3.10/site-packages/pip/_internal/commands/hash.py')
-rw-r--r-- | env/lib/python3.10/site-packages/pip/_internal/commands/hash.py | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/env/lib/python3.10/site-packages/pip/_internal/commands/hash.py b/env/lib/python3.10/site-packages/pip/_internal/commands/hash.py new file mode 100644 index 0000000..042dac8 --- /dev/null +++ b/env/lib/python3.10/site-packages/pip/_internal/commands/hash.py @@ -0,0 +1,59 @@ +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() |