configure logging system to display path of file

The simplelog system allowed to display the path of the file who called the macro, allowing to click on it in the editor to reach this point easily:

2019-10-23 14:07:16+00:00 [DEBUG] durs_ws2p_protocol::controller::on_open: [lib/modules/ws2p/ws2p-protocol/src/controller/on_open.rs:34] open websocket from 127.0.0.1:54028

After the migration to fern, it is not the case anymore:

[2019-10-23][16:16:29][durs_ws2p_protocol::controller::on_open][DEBUG] open websocket from 127.0.0.1:54176

This is especially useful for DEBUG logs.

Edited Oct 23, 2019 by Hugo Trentesaux

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information