def _checkout(self, tag, samples, options):
dataset = options['with_dataset']
labels = options['with_labels']
retries = options['retry']
force_get = options['force']
bare = options['bare']
version = options['version']
repo_type = self.__repo_type
try:
cache_path = get_cache_path(self.__config, repo_type)
metadata_path = get_metadata_path(self.__config, repo_type)
objects_path = get_objects_path(self.__config, repo_type)
refs_path = get_refs_path(self.__config, repo_type)
if not re.search(RGX_TAG_FORMAT, tag):
metadata_path = get_metadata_path(self.__config, repo_type)
metadata = Metadata(tag, metadata_path, self.__config,
repo_type)
tag = metadata.get_tag(tag, version)
if not tag:
return None, None
elif not self._tag_exists(tag):
return None, None
categories_path, spec_name, _ = spec_parse(tag)
root_path = get_root_path()
ws_path = os.path.join(root_path,
os.sep.join([repo_type, categories_path]))
except Exception as e:
log.error(e, class_name=LOCAL_REPOSITORY_CLASS_NAME)
return None, None
ref = Refs(refs_path, spec_name, repo_type)
cur_tag, _ = ref.branch()
if cur_tag == tag:
log.info('already at tag [%s]' % tag,
class_name=REPOSITORY_CLASS_NAME)
return None, None
local_rep = LocalRepository(self.__config, objects_path, repo_type)
# check if no data left untracked/uncommitted. otherwise, stop.
if not force_get and local_rep.exist_local_changes(spec_name) is True:
return None, None
try:
self._checkout_ref(tag)
except Exception:
log.error('Unable to checkout to %s' % tag,
class_name=REPOSITORY_CLASS_NAME)
return None, None
dataset_tag, labels_tag = self._get_related_tags(
categories_path, dataset, labels, metadata_path, repo_type,
spec_name)
fetch_success = self._fetch(tag, samples, retries, bare)
if not fetch_success:
objs = Objects('', objects_path)
objs.fsck(remove_corrupted=True)
self._checkout_ref()
return None, None
ensure_path_exists(ws_path)
try:
spec_index_path = os.path.join(
get_index_metadata_path(self.__config, repo_type), spec_name)
except Exception:
return
self._delete_spec_and_readme(spec_index_path, spec_name)
try:
r = LocalRepository(self.__config, objects_path, repo_type)
r.checkout(cache_path, metadata_path, ws_path, tag, samples, bare)
except OSError as e:
self._checkout_ref()
if e.errno == errno.ENOSPC:
log.error(
'There is not enough space in the disk. Remove some files and try again.',
class_name=REPOSITORY_CLASS_NAME)
else:
log.error(
'An error occurred while creating the files into workspace: %s \n.'
% e,
class_name=REPOSITORY_CLASS_NAME)
return None, None
except Exception as e:
self._checkout_ref()
log.error(
'An error occurred while creating the files into workspace: %s \n.'
% e,
class_name=REPOSITORY_CLASS_NAME)
return None, None
m = Metadata('', metadata_path, self.__config, repo_type)
sha = m.sha_from_tag(tag)
ref.update_head(tag, sha)
# restore to master/head
self._checkout_ref()
return dataset_tag, labels_tag
def _checkout(self,
tag,
samples,
retries=2,
force_get=False,
dataset=False,
labels=False,
bare=False):
repo_type = self.__repo_type
try:
cache_path = get_cache_path(self.__config, repo_type)
metadata_path = get_metadata_path(self.__config, repo_type)
objects_path = get_objects_path(self.__config, repo_type)
refs_path = get_refs_path(self.__config, repo_type)
# find out actual workspace path to save data
if not self._tag_exists(tag):
return None, None
categories_path, spec_name, _ = spec_parse(tag)
dataset_tag = None
labels_tag = None
root_path = get_root_path()
ws_path = os.path.join(root_path,
os.sep.join([repo_type, categories_path]))
ensure_path_exists(ws_path)
except Exception as e:
log.error(e, class_name=LOCAL_REPOSITORY_CLASS_NAME)
return None, None
ref = Refs(refs_path, spec_name, repo_type)
cur_tag, _ = ref.branch()
if cur_tag == tag:
log.info('already at tag [%s]' % tag,
class_name=REPOSITORY_CLASS_NAME)
return None, None
local_rep = LocalRepository(self.__config, objects_path, repo_type)
# check if no data left untracked/uncommitted. otherwise, stop.
if not force_get and local_rep.exist_local_changes(spec_name) is True:
return None, None
try:
self._checkout_ref(tag)
except Exception:
log.error('Unable to checkout to %s' % tag,
class_name=REPOSITORY_CLASS_NAME)
return None, None
spec_path = os.path.join(metadata_path, categories_path,
spec_name + '.spec')
if dataset is True:
dataset_tag = get_entity_tag(spec_path, repo_type, 'dataset')
if labels is True:
labels_tag = get_entity_tag(spec_path, repo_type, 'labels')
fetch_success = self._fetch(tag, samples, retries, bare)
if not fetch_success:
objs = Objects('', objects_path)
objs.fsck(remove_corrupted=True)
self._checkout_ref('master')
return None, None
try:
spec_index_path = os.path.join(
get_index_metadata_path(self.__config, repo_type), spec_name)
except Exception:
return
if os.path.exists(spec_index_path):
if os.path.exists(
os.path.join(spec_index_path, spec_name + '.spec')):
os.unlink(os.path.join(spec_index_path, spec_name + '.spec'))
if os.path.exists(os.path.join(spec_index_path, 'README.md')):
os.unlink(os.path.join(spec_index_path, 'README.md'))
try:
r = LocalRepository(self.__config, objects_path, repo_type)
r.checkout(cache_path, metadata_path, objects_path, ws_path, tag,
samples, bare)
except OSError as e:
self._checkout_ref('master')
if e.errno == errno.ENOSPC:
log.error(
'There is not enough space in the disk. Remove some files and try again.',
class_name=REPOSITORY_CLASS_NAME)
else:
log.error(
'An error occurred while creating the files into workspace: %s \n.'
% e,
class_name=REPOSITORY_CLASS_NAME)
return None, None
except Exception as e:
self._checkout_ref('master')
log.error(
'An error occurred while creating the files into workspace: %s \n.'
% e,
class_name=REPOSITORY_CLASS_NAME)
return None, None
m = Metadata('', metadata_path, self.__config, repo_type)
sha = m.sha_from_tag(tag)
ref.update_head(tag, sha)
# restore to master/head
self._checkout_ref('master')
return dataset_tag, labels_tag