Merge branch 'feature/registry' of github.com:ecmwf/anemoi-utils into…

… feature/registry

CHANGELOG.md

@@ -13,6 +13,8 @@ Keep it human-readable, your future self will thank you!
 ### Added
 - Add supporting_arrays to checkpoints
 - Add factories registry
+- Optional renaming of subcommands via `command` attribute [#34](https://github.com/ecmwf/anemoi-utils/pull/34)
+
 
 ## [0.4.1](https://github.com/ecmwf/anemoi-utils/compare/0.4.0...0.4.1) - 2024-10-23
 

src/anemoi/utils/cli.py

@@ -96,8 +96,20 @@ def register_commands(here, package, select, fail=None):
             continue
 
         obj = select(imported)
-        if obj is not None:
-            result[name] = obj
+        if obj is None:
+            continue
+
+        if hasattr(obj, "command"):
+            name = obj.command
+
+        if name in result:
+            msg = f"Duplicate command '{name}', please choose a different command name for {type(obj)}"
+            raise ValueError(msg)
+        if " " in name:
+            msg = f"Commands cannot contain spaces: '{name}' in {type(obj)}"
+            raise ValueError(msg)
+
+        result[name] = obj
 
     for name, e in not_available.items():
         if fail is None: