def synchronize_header(source: str, target: str) -> None:
"transfer header metadata between local paths"
header_dict = dict() # never empty
try:
header_dict = SUDO.xattr_load(source)
except:
pass
if not header_dict:
header_dict = produce_header(source)
try:
SUDO.xattr_save(target, header_dict)
except:
SUDO.files_sync_time(source, target)
def get(self, local_url: str, remote_url: str) -> None:
"fetch remote resource and persist headers in xattr"
logger.debug(f"http.get.fetch: {remote_url}")
local, remote = self.parse(local_url, remote_url)
header_path = make_temp_path("curl-head")
source_path = make_temp_path("curl-gets")
target_path = local.path
SUDO.parent_ensure(header_path)
curl = Curl()
with_auth_url(curl, remote_url)
with_proxy_config(curl, remote_url)
curl.with_file_get(source_path)
curl.with_dump_header(header_path)
curl.execute_unit_sert()
header_dict = parse_header_file(header_path)
SUDO.files_delete(header_path)
SUDO.files_move(source_path, target_path)
# TODO attr
SUDO.xattr_save(target_path, header_dict)
