Git submodule : automatic merge

Question

Is it possible, with git, to automaticaly make a merge inside a submodule only asking merge inside main module ? Is there a command / option to do that ?

Goal is, in main module, to be on branch1 with submodules on same branch1. When a merge command between branch1 and a remote branch is used within main module, that merge branch1 with remote branch within submodule too.

Answer 1

Shortly, no. You need to specify it for the submodules using git submodule update --remote --merge.

You can see plenty of explanations on submodules in the official documentation here.