Module continuous_delivery_scripts.utils.hash_helpers

Helpers for calculating hashes or UUID.

Functions

def determine_sha1_hash_of_file(filepath: pathlib.Path) ‑> str

Expand source code

def determine_sha1_hash_of_file(filepath: Path) -> str:
    """Calculates the checksum of a file.

    Args:
        filepath: path to the file

    Returns:
        corresponding SHA1 hash.
    """
    if not filepath.exists() or not filepath.is_file():
        return "0"
    BLOCKSIZE = 65536
    hasher = hashlib.sha1()
    with open(str(filepath), "rb") as afile:
        buf = afile.read(BLOCKSIZE)
        while len(buf) > 0:
            hasher.update(buf)
            buf = afile.read(BLOCKSIZE)
    return hasher.hexdigest()

Calculates the checksum of a file.

Args

-----=

filepath

path to the file

Returns -----= corresponding SHA1 hash.

def generate_uuid_based_on_str(string: str) ‑> str

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def generate_uuid_based_on_str(string: str) -> str:
    """Generates a UUID based on a string.

    Args:
        string: string to base the UUID generation on

    Returns:
        a UUID
    """
    m = hashlib.md5()
    m.update((string if string else "").encode("utf-8"))
    return str(uuid.UUID(m.hexdigest()))

Generates a UUID based on a string.

Args

-----=

string

string to base the UUID generation on

Returns -----= a UUID