def test_head(self):
config = config_load()
spec_path = 'dataset-ex'
ml_dir = os.path.join(self.tmp_dir, config['mlgit_path'])
os.mkdir(ml_dir)
refs_dir = os.path.join(ml_dir, 'dataset', 'refs')
refs = Refs(refs_dir, spec_path)
sha = 'b569b7e4cd82206b451315123669057ef5f1ac3b'
tag = 'images__dataset_ex__1'
refs.update_head(tag, sha)
head = os.path.join(refs_dir, spec_path, 'HEAD')
self.assertEqual((tag, sha), refs.head())
os.remove(head)
self.assertEqual((None, None), refs.head())
def test_update_head(self):
config = config_load()
spec_path = 'dataset-ex'
ml_dir = os.path.join(self.tmp_dir, config['mlgit_path'])
os.mkdir(ml_dir)
refs_dir = os.path.join(ml_dir, 'dataset', 'refs')
refs = Refs(refs_dir, spec_path)
sha = 'b569b7e4cd82206b451315123669057ef5f1ac3b'
tag = 'images__dataset_ex__1'
refs.update_head(tag, sha)
head = os.path.join(refs_dir, spec_path, 'HEAD')
self.assertTrue(os.path.exists(head))
yaml = yaml_load(head)
self.assertEqual(yaml[tag], sha)
def reset(self, spec, reset_type, head):
log.info(output_messages['INFO_INITIALIZING_RESET'] %
(reset_type, head),
class_name=REPOSITORY_CLASS_NAME)
if (reset_type == '--soft'
or reset_type == '--mixed') and head == HEAD:
return
try:
repo_type = self.__repo_type
metadata_path = get_metadata_path(self.__config, repo_type)
index_path = get_index_path(self.__config, repo_type)
refs_path = get_refs_path(self.__config, repo_type)
object_path = get_objects_path(self.__config, repo_type)
met = Metadata(spec, metadata_path, self.__config, repo_type)
ref = Refs(refs_path, spec, repo_type)
idx = MultihashIndex(spec, index_path, object_path)
fidx = FullIndex(spec, index_path)
except Exception as e:
log.error(e, class_name=REPOSITORY_CLASS_NAME)
return
# get tag before reset
tag = met.get_current_tag()
categories_path = get_path_with_categories(str(tag))
# current manifest file before reset
manifest_path = os.path.join(metadata_path, categories_path, spec,
MANIFEST_FILE)
_manifest = Manifest(manifest_path).load()
if head == HEAD_1: # HEAD~1
try:
# reset the repo
met.reset()
except Exception:
return
# get tag after reset
tag_after_reset = met.get_current_tag()
sha = met.sha_from_tag(tag_after_reset)
# update ml-git ref HEAD
ref.update_head(str(tag_after_reset), sha)
# # get path to reset workspace in case of --hard
path, file = None, None
try:
path, file = search_spec_file(self.__repo_type, spec,
categories_path)
except Exception as e:
log.error(e, class_name=REPOSITORY_CLASS_NAME)
if reset_type == '--hard' and path is None:
return
# get manifest from metadata after reset
_manifest_changed = Manifest(manifest_path)
hash_files, file_names = _manifest_changed.get_diff(_manifest)
idx_mf = idx.get_index().load()
if reset_type == '--soft':
# add in index/metadata/<entity-name>/MANIFEST
idx.update_index_manifest(idx_mf)
idx.update_index_manifest(hash_files)
fidx.update_index_status(file_names, Status.a.name)
else: # --hard or --mixed
# remove hash from index/hashsh/store.log
file_names.update(*idx_mf.values())
objs = MultihashFS(index_path)
for key_hash in hash_files:
objs.remove_hash(key_hash)
idx.remove_manifest()
fidx.remove_from_index_yaml(file_names)
fidx.remove_uncommitted()
if reset_type == '--hard': # reset workspace
remove_from_workspace(file_names, path, spec)
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 commit(self, spec, specs, version=None, run_fsck=False, msg=None):
# Move chunks from index to .ml-git/objects
repo_type = self.__repo_type
try:
index_path = get_index_path(self.__config, repo_type)
objects_path = get_objects_path(self.__config, repo_type)
metadata_path = get_metadata_path(self.__config, repo_type)
refs_path = get_refs_path(self.__config, repo_type)
repo = LocalRepository(self.__config, objects_path, repo_type)
mutability, check_mutability = repo.get_mutability_from_spec(
spec, repo_type)
if not mutability:
return
if not check_mutability:
log.error('Spec mutability cannot be changed.',
class_name=REPOSITORY_CLASS_NAME)
return
except Exception as e:
log.error(e, class_name=REPOSITORY_CLASS_NAME)
return
ref = Refs(refs_path, spec, repo_type)
tag, sha = ref.branch()
categories_path = get_path_with_categories(tag)
manifest_path = os.path.join(metadata_path, categories_path, spec,
MANIFEST_FILE)
path, file = None, None
try:
path, file = search_spec_file(self.__repo_type, spec,
categories_path)
except Exception as e:
log.error(e, class_name=REPOSITORY_CLASS_NAME)
if path is None:
return None, None, None
spec_path = os.path.join(path, file)
idx = MultihashIndex(spec, index_path, objects_path)
if version:
set_version_in_spec(version, spec_path, self.__repo_type)
idx.add_metadata(path, file)
# Check tag before anything to avoid creating unstable state
log.debug('Check if tag already exists',
class_name=REPOSITORY_CLASS_NAME)
m = Metadata(spec, metadata_path, self.__config, repo_type)
if not m.check_exists():
log.error('The %s has not been initialized' % self.__repo_type,
class_name=REPOSITORY_CLASS_NAME)
return
full_metadata_path, categories_sub_path, metadata = m.tag_exists(
index_path)
if metadata is None:
return None
log.debug('%s -> %s' % (index_path, objects_path),
class_name=REPOSITORY_CLASS_NAME)
# commit objects in index to ml-git objects
o = Objects(spec, objects_path)
changed_files, deleted_files = o.commit_index(index_path, path)
bare_mode = os.path.exists(
os.path.join(index_path, 'metadata', spec, 'bare'))
if not bare_mode:
manifest = m.get_metadata_manifest(manifest_path)
self._remove_deleted_files(idx, index_path, m, manifest, spec,
deleted_files)
m.remove_files_added_after_base_tag(manifest, path)
else:
tag, _ = ref.branch()
self._checkout_ref(tag)
# update metadata spec & README.md
# option --dataset-spec --labels-spec
tag, sha = m.commit_metadata(index_path, specs, msg, changed_files,
mutability, path)
# update ml-git ref spec HEAD == to new SHA-1 / tag
if tag is None:
return None
ref = Refs(refs_path, spec, repo_type)
ref.update_head(tag, sha)
# Run file check
if run_fsck:
self.fsck()
return 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