ZoneAnnotator command-line utility; add ZoneAnnotator into degirum_to…

…ols CLI

degirum_tools/__init__.py

@@ -7,6 +7,8 @@
 
 # flake8: noqa
 
+import argparse
+
 from ._version import __version__, __version_info__
 from .audio_support import *
 from .compound_models import *
@@ -31,3 +33,26 @@
     reload_env as _reload_env,
     get_test_mode as _get_test_mode,
 )
+
+def _command_entrypoint(arg_str=None):
+    from .zone_annotator import _zone_annotator_args
+
+    parser = argparse.ArgumentParser(description="DeGirum tools")
+
+    subparsers = parser.add_subparsers(
+        help="use -h flag to see help on subcommands", required=True
+    )
+
+    # zone_annotator subcommand
+    subparser = subparsers.add_parser(
+        "zone_annotator",
+        description="Launch interactive utility for zone annotation in images",
+        help="launch interactive utility for zone annotation in images",
+    )
+    _zone_annotator_args(subparser)
+
+    # parse args
+    args = parser.parse_args(arg_str.split() if arg_str else None)
+
+    # execute subcommand
+    args.func(args)