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import os
import hashlib
import tarfile
def uncompress_file_to_dir(compressed_file, uncompress_dir):
command = None
extension = os.path.splitext(compressed_file)[1]
try:
os.mkdir(uncompress_dir)
except FileExistsError as e:
pass
if extension == '.gz':
tar = tarfile.open(compressed_file)
tar.extractall(uncompress_dir)
tar.close()
elif extension == '.zip':
pass
else:
print("Error: unknown extension " + extension)
return os.path.join(uncompress_dir, os.listdir(uncompress_dir)[0])
BUF_SIZE = 1048576
def get_hash(file_path):
sha512 = hashlib.sha512()
with open(file_path, 'rb') as f:
while True:
data = f.read(BUF_SIZE)
if not data:
break
sha512.update(data)
return sha512.hexdigest()
def get_file_info(mar_file, url):
filesize = os.path.getsize(mar_file)
data = { 'hash' : get_hash(mar_file),
'hashFunction' : 'sha512',
'size' : filesize,
'url' : url + os.path.basename(mar_file)}
return data
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