feat: aliased command groups

transpire/internal/cli/__init__.py

@@ -3,7 +3,25 @@
 from . import bootstrap, dev, image, obj, secrets
 
 
-@click.group()
+class AliasedGroup(click.Group):
+    def get_command(self, ctx, cmd_name):
+        rv = click.Group.get_command(self, ctx, cmd_name)
+        if rv is not None:
+            return rv
+        matches = [x for x in self.list_commands(ctx) if x.startswith(cmd_name)]
+        if not matches:
+            return None
+        elif len(matches) == 1:
+            return click.Group.get_command(self, ctx, matches[0])
+        ctx.fail(f"Too many matches: {', '.join(sorted(matches))}")
+
+    def resolve_command(self, ctx, args):
+        # always return the full command name
+        _, cmd, args = super().resolve_command(ctx, args)
+        return cmd.name, cmd, args
+
+
+@click.command(cls=AliasedGroup)
 def cli() -> None:
     pass