Source code for ramble.util.hashing

# Copyright 2022-2025 The Ramble Authors
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.

import json
import hashlib
import spack.util.spack_json as sjson

BLOCK_SIZE = 1024 * 1024




def hash_file(file_path):
    file_hash = hashlib.sha256()
    with open(file_path, "rb") as f:
        while True:
            bytes = f.read(BLOCK_SIZE)
            if not bytes:
                break
            file_hash.update(bytes)
    return file_hash.hexdigest()





def hash_string(string):
    return hashlib.sha256(string.encode("UTF-8")).hexdigest()





def hash_json(in_json):
    _json_dump_args = {"indent": 2, "separators": (",", ": "), "sort_keys": True}

    data = sjson._strify(in_json)
    json_data = json.dumps(data, **_json_dump_args)

    return hashlib.sha256(json_data.encode("UTF-8")).hexdigest()