added config export pattern

aprsd_weewx_plugin/cli.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+"""
+CLI tool for aprsd-weewx-plugin configuration export.
+"""
+
+import json
+import sys
+
+
+def export_config_cmd(format="json"):
+    """Export plugin configuration options."""
+    try:
+        from aprsd_weewx_plugin.conf.opts import export_config
+
+        result = export_config(format=format)
+
+        if format == "json":
+            print(result)
+        else:
+            print(json.dumps(result, indent=2))
+
+        return 0
+    except ImportError as e:
+        print(f"Error: {e}", file=sys.stderr)
+        print("\nTo export config, install oslo.config:", file=sys.stderr)
+        print("  pip install oslo.config", file=sys.stderr)
+        return 1
+    except Exception as e:
+        print(f"Error exporting config: {e}", file=sys.stderr)
+        return 1
+
+
+def main():
+    """Main entry point for CLI."""
+    import argparse
+
+    parser = argparse.ArgumentParser(description="Export aprsd-weewx-plugin configuration options")
+    parser.add_argument(
+        "--format",
+        choices=["dict", "json"],
+        default="json",
+        help="Output format (default: json)",
+    )
+
+    args = parser.parse_args()
+    sys.exit(export_config_cmd(format=args.format))
+
+
+if __name__ == "__main__":
+    main()