sync with upstream - renaming some files, moving some classes (#76)

* moving ItemStatus, DatasetItemStorage, DatasetItemStorageDatasetView to components/dataset_item_storage.py

* moving DatasetPatch, DatasetStorage to components/dataset_storage.py

* moving DEFAULT_SUBSET to util/definitions.py

* renaming components/dataset_filter.py to components/filter.py

* moving components/hl_ops.py to components/hl_ops/__init__.py

* renaming components/dataset_generator.py to components/generator.py

* moving Importer to components/importer.py

* moving Transform, ItemTransform to components/transformer.py

src/datumaro/__init__.py

@@ -32,26 +32,17 @@
     Skeleton,
 )
 from .components.cli_plugin import CliPlugin
-from .components.dataset import (
-    Dataset,
-    DatasetPatch,
-    DatasetSubset,
-    IDataset,
-    ItemStatus,
-    eager_mode,
-)
+from .components.dataset import Dataset, DatasetSubset, IDataset, eager_mode
 from .components.dataset_base import (
-    DEFAULT_SUBSET_NAME,
     CategoriesInfo,
     DatasetBase,
     DatasetItem,
     FailingImportErrorPolicy,
-    Importer,
     ImportErrorPolicy,
-    ItemTransform,
     SubsetBase,
-    Transform,
 )
+from .components.dataset_item_storage import ItemStatus
+from .components.dataset_storage import DatasetPatch
 from .components.environment import Environment, PluginRegistry
 from .components.exporter import Exporter, ExportErrorPolicy, FailingExportErrorPolicy
 from .components.hl_ops import (  # pylint: disable=redefined-builtin
@@ -62,9 +53,12 @@
     transform,
     validate,
 )
+from .components.importer import Importer
 from .components.launcher import Launcher, ModelTransform
 from .components.media import ByteImage, Image, MediaElement, PointCloud, Video, VideoFrame
 from .components.media_manager import MediaManager
 from .components.progress_reporting import NullProgressReporter, ProgressReporter
+from .components.transformer import ItemTransform, Transform
 from .components.validator import Validator
+from .util.definitions import DEFAULT_SUBSET_NAME
 from .version import VERSION

src/datumaro/cli/contexts/project/__init__.py

@@ -8,9 +8,9 @@
 import os.path as osp
 from enum import Enum
 
-from datumaro.components.dataset_filter import DatasetItemEncoder
 from datumaro.components.environment import Environment
 from datumaro.components.errors import MigrationError, ProjectNotFoundError
+from datumaro.components.filter import DatasetItemEncoder
 from datumaro.components.operations import compute_ann_statistics, compute_image_statistics
 from datumaro.components.project import Project, ProjectBuildTargets
 from datumaro.components.validator import TaskType

src/datumaro/components/cli_plugin.py

@@ -15,9 +15,11 @@
 def plugin_types() -> List[Type["CliPlugin"]]:
     global _plugin_types
     if _plugin_types is None:
-        from datumaro.components.dataset_base import DatasetBase, Importer, Transform
+        from datumaro.components.dataset_base import DatasetBase
         from datumaro.components.exporter import Exporter
+        from datumaro.components.importer import Importer
         from datumaro.components.launcher import Launcher
+        from datumaro.components.transformer import Transform
         from datumaro.components.validator import Validator
 
         _plugin_types = [Launcher, DatasetBase, Transform, Importer, Exporter, Validator]