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"""Utility functions for the objaverse_xl package."""
import uuid
import os
import hashlib
def get_uid_from_str(string: str) -> str:
"""Generates a UUID from a string.
Args:
string (str): String to generate a UUID from.
Returns:
str: UUID generated from the string.
"""
namespace = uuid.NAMESPACE_DNS
return str(uuid.uuid5(namespace, string))
def get_file_hash(file_path: str) -> str:
"""Get the sha256 hash of a file.
Args:
file_path (str): Path to the file.
Returns:
str: sha256 hash of the file.
"""
# Check if the path is a symbolic link
if os.path.islink(file_path):
# Resolve the symbolic link
resolved_path = os.readlink(file_path)
# Check if the resolved path exists
if not os.path.exists(resolved_path):
raise FileNotFoundError(
f"The symbolic link points to a file that doesn't exist: {resolved_path}"
)
sha256 = hashlib.sha256()
# Read the file from the path
with open(file_path, "rb") as f:
# Loop till the end of the file
for byte_block in iter(lambda: f.read(4096), b""):
sha256.update(byte_block)
return sha256.hexdigest()
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