[commands] Add initializer helper method

beat/cmdline/commands.py

@@ -247,4 +247,28 @@ CMD_TABLE = {
 
 
 def command(name):
+    """Returns a copy of the method to be decorated.
+
+    This allows to reuse the same commands. Using directly the original method
+    would allow to only use it once.
+
+    Parameters:
+        name str: Name of the desired command
+    """
+
     return copy_func(CMD_TABLE[name])
+
+
+def initialise_asset_commands(click_cmd_group, cmd_list):
+    """Initialize a command group adding all the commands from cmd_list to it
+
+    Parameters:
+        click_cmd_group obj: click command to group
+        cmd_list list: list of string or tuple of the commands to add
+    """
+
+    for item in cmd_list:
+        if isinstance(item, tuple):
+            click_cmd_group.command(name=item[0])(command(item[1]))
+        else:
+            click_cmd_group.command(name=item)(command(item))