def check_md5(url: str, dest_paths: List[Path]) -> bool:
r = requests.get(url + '.md5')
if r.status_code != 200:
return False
expected = {}
for line in r.text.splitlines():
_md5, fname = line.split(' ', maxsplit=1)
if fname[0] != '*':
if fname[0] == ' ':
log.warning(f'Hash generated in text mode for {fname}, comparison could be incorrect')
else:
log.error(f'Unknown hash content format in {url + ".md5"}')
return False
expected[fname[1:]] = _md5
done = None
not_done = []
for base_path in dest_paths:
if all(file_md5(base_path / p) == _md5 for p, _md5 in expected.items()):
done = base_path
else:
not_done.append(base_path)
if done is None:
return False
for base_path in not_done:
log.info(f'Copying data from {done} to {base_path}')
for p in expected.keys():
shutil.copy(done/p, base_path/p)
return True
def check_md5(url: str,
dest_paths: List[Path],
headers: Optional[dict] = None) -> bool:
url_md5 = path_set_md5(url)
try:
if url_md5.startswith('s3://'):
import boto3
s3 = boto3.resource('s3')
bucket, key = url_md5[5:].split('/', maxsplit=1)
obj = s3.Object(bucket, key)
data = obj.get()['Body'].read().decode('utf8')
else:
r = requests.get(url_md5, headers=headers)
if r.status_code != 200:
return False
data = r.text
except Exception as e:
log.debug(
f'Could not download {url_md5} because of an exception {type(e)}: {e}'
)
return False
expected = {}
for line in data.splitlines():
_md5, fname = line.split(' ', maxsplit=1)
if fname[0] != '*':
if fname[0] == ' ':
log.warning(
f'Hash generated in text mode for {fname}, comparison could be incorrect'
)
else:
log.error(f'Unknown hash content format in {url + ".md5"}')
return False
expected[fname[1:]] = _md5
done = None
not_done = []
for base_path in dest_paths:
if all(
file_md5(base_path / p) == _md5
for p, _md5 in expected.items()):
done = base_path
else:
not_done.append(base_path)
if done is None:
return False
for base_path in not_done:
log.info(f'Copying data from {done} to {base_path}')
for p in expected.keys():
shutil.copy(done / p, base_path / p)
return True
def compute_hashes(fpath: Union[str, Path]) -> Dict[str, str]:
p = Path(fpath).expanduser()
if not p.is_file():
raise RuntimeError(f'{p} is not a file')
if '.tar' in {s.lower() for s in p.suffixes}:
hashes = tar_md5(p)
elif p.suffix.lower() == '.gz':
hashes = {p.with_suffix('').name: gzip_md5(p)}
else:
hashes = {p.name: file_md5(p)}
return hashes
def compute_hashes(fpath: Union[str, Path]) -> Dict[str, str]:
p = Path(fpath).expanduser()
if not p.is_file():
raise RuntimeError(f'{p} is not a file')
if '.tar' in {s.lower() for s in p.suffixes}:
hashes = tar_md5(p)
elif p.suffix.lower() == '.gz':
hashes = {p.with_suffix('').name: gzip_md5(p)}
elif p.suffix.lower() == '.zip':
hashes = zip_md5(p)
else:
hashes = {p.name: file_md5(p)}
return hashes
