category flag for convert command (#927)

* Add category flag to convert command for cli.

* Update changelog.

Author: markbader

webknossos/Changelog.md

@@ -17,6 +17,7 @@ For upgrade instructions, please check the respective _Breaking Changes_ section
 ### Added
 
 ### Changed
+- The `convert` command of the cli now has a `--category` flag, to select the LayerCategoryType.
 
 ### Fixed
 

webknossos/webknossos/cli/_utils.py

@@ -29,6 +29,18 @@ class DistributionStrategy(str, Enum):
     DEBUGS_SEQUENTIAL = "debug_sequential"
 
 
+class LayerCategory(str, Enum):
+    """Enum of available layer categories.
+
+    TODO  pylint: disable=fixme
+    - As soon as supported by typer this enum should be
+    replaced with typing.Literal in type hint.
+    """
+
+    COLOR = "color"
+    SEGMENTATION = "segmentation"
+
+
 class DataFormat(str, Enum):
     """Enum of available data formats."""
 

webknossos/webknossos/cli/convert.py

@@ -10,6 +10,7 @@
 from webknossos import DataFormat, Dataset
 from webknossos.cli._utils import (
     DistributionStrategy,
+    LayerCategory,
     VoxelSize,
     parse_path,
     parse_voxel_size,
@@ -44,6 +45,12 @@ def main(
             metavar="VOXEL_SIZE",
         ),
     ],
+    category: Annotated[
+        Optional[LayerCategory],
+        typer.Option(
+            help="The category of the layer that should be created.",
+        ),
+    ] = None,
     data_format: Annotated[
         DataFormat,
         typer.Option(
@@ -100,4 +107,5 @@ def main(
             data_format=data_format,
             executor=executor,
             compress=compress,
+            layer_category=category.value if category else None,
         )