[enh] can do a 'yunohost tools shell -c command' à la python -c

data/actionsmap/yunohost.yml

@@ -1483,6 +1483,10 @@ tools:
             configuration:
                 authenticate: all
             action_help: Launch a development shell
+            arguments:
+                -c:
+                    help: python command to execute
+                    full: --command
 
         ### tools_shutdown()
         shutdown:

src/yunohost/tools.py

@@ -814,13 +814,17 @@ def tools_migrations_state():
     return read_json(MIGRATIONS_STATE_PATH)
 
 
-def tools_shell(auth):
+def tools_shell(auth, command=None):
     """
     Launch an (i)python shell in the YunoHost context.
 
     This is entirely aim for development.
     """
 
+    if command:
+        exec(command)
+        return
+
     logger.warn("The \033[1;34mauth\033[0m is available in this context")
     try:
         from IPython import embed