Feature Request: --recursive for inplace encryption/decryption, given config file

Motivation

I would like to use sops for kubernetes in the sense of storing encrypted files in git and then as the normal deploy flow

1. decrypt everything
2. build kubernetes yaml files and apply them
3. encrypt everything

I think this workflow is also useful for many others.

Current Status

So far one has to write a manual for loop with sops -d -i mycurrentfile and sops -e -i mycurrentfile, and ignore if sops throws an error like error loading config: no matching creation rules found.

Feature Request

It would be great if the standard sops command has a --recursive flag which can be combined with -d -i and -e -i to recursively apply the rules in .sops.yaml to all the files in the current directory and subdirectories. If something is not in the .sops.yaml rules, it should not be touched.

Start at the standard sops command handling for -d -i and -e -i, then trace how .sops.yaml creation rules are applied. Implement recursive processing for the current directory and subdirectories while leaving files without matching rules untouched; no specific source files or tests are named in the issue.