llama.cpp/scripts/verify-checksum-models.py
Jiří Podivín 5ddf7ea1fb
hooks : setting up flake8 and pre-commit hooks (#1681)
Small, non-functional changes were made to non-compliant files.
These include breaking up long lines, whitespace sanitation and
unused import removal.

Maximum line length in python files was set to a generous 125 chars,
in order to minimize number of changes needed in scripts and general
annoyance. The "txt" prompts directory is excluded from the checks
as it may contain oddly formatted files and strings for a good reason.

Signed-off-by: Jiri Podivin <jpodivin@gmail.com>
2023-06-17 13:32:48 +03:00

79 lines
2.3 KiB
Python

import os
import hashlib
def sha256sum(file):
block_size = 16 * 1024 * 1024 # 16 MB block size
b = bytearray(block_size)
file_hash = hashlib.sha256()
mv = memoryview(b)
with open(file, 'rb', buffering=0) as f:
while True:
n = f.readinto(mv)
if not n:
break
file_hash.update(mv[:n])
return file_hash.hexdigest()
# Define the path to the llama directory (parent folder of script directory)
llama_path = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
# Define the file with the list of hashes and filenames
hash_list_file = os.path.join(llama_path, "SHA256SUMS")
# Check if the hash list file exists
if not os.path.exists(hash_list_file):
print(f"Hash list file not found: {hash_list_file}")
exit(1)
# Read the hash file content and split it into an array of lines
with open(hash_list_file, "r") as f:
hash_list = f.read().splitlines()
# Create an array to store the results
results = []
# Loop over each line in the hash list
for line in hash_list:
# Split the line into hash and filename
hash_value, filename = line.split(" ")
# Get the full path of the file by joining the llama path and the filename
file_path = os.path.join(llama_path, filename)
# Informing user of the progress of the integrity check
print(f"Verifying the checksum of {file_path}")
# Check if the file exists
if os.path.exists(file_path):
# Calculate the SHA256 checksum of the file using hashlib
file_hash = sha256sum(file_path)
# Compare the file hash with the expected hash
if file_hash == hash_value:
valid_checksum = "V"
file_missing = ""
else:
valid_checksum = ""
file_missing = ""
else:
valid_checksum = ""
file_missing = "X"
# Add the results to the array
results.append({
"filename": filename,
"valid checksum": valid_checksum,
"file missing": file_missing
})
# Print column headers for results table
print("\n" + "filename".ljust(40) + "valid checksum".center(20) + "file missing".center(20))
print("-" * 80)
# Output the results as a table
for r in results:
print(f"{r['filename']:40} {r['valid checksum']:^20} {r['file missing']:^20}")