def get_hash(self, path_info, **kwargs):
assert path_info and (isinstance(path_info, str)
or path_info.scheme == self.scheme)
if not self.exists(path_info):
return None
# pylint: disable=assignment-from-none
hash_ = self.state.get(path_info)
# If we have dir hash in state db, but dir cache file is lost,
# then we need to recollect the dir via .get_dir_hash() call below,
# see https://github.com/iterative/dvc/issues/2219 for context
if (hash_ and self.is_dir_hash(hash_) and not self.cache.tree.exists(
self.cache.tree.hash_to_path_info(hash_))):
hash_ = None
if hash_:
hash_info = HashInfo(self.PARAM_CHECKSUM, hash_)
if hash_info.isdir:
hash_info.dir_info = self.cache.get_dir_cache(hash_info)
return hash_info
if self.isdir(path_info):
hash_info = self.get_dir_hash(path_info, **kwargs)
else:
hash_info = self.get_file_hash(path_info)
if hash_info and self.exists(path_info):
self.state.save(path_info, hash_info.value)
return hash_info
def get_dir_hash(path_info, fs, name, odb, state, **kwargs):
from . import Tree
value = fs.info(path_info).get(name)
if value:
hash_info = HashInfo(name, value)
try:
Tree.load(odb, hash_info)
return hash_info
except FileNotFoundError:
pass
dir_info = _collect_dir(path_info, fs, name, state, **kwargs)
hash_info = Tree.save_dir_info(fs.repo.odb.local, dir_info)
hash_info.size = dir_info.size
hash_info.dir_info = dir_info
return hash_info
