log-to-defmt

Crates.iolog-to-defmt
lib.rslog-to-defmt
version0.1.0
sourcesrc
created_at2023-01-02 10:10:12.194904
updated_at2023-01-02 10:10:12.194904
descriptionA backend for log that emits through defmt
homepage
repositoryhttps://gitlab.com/chrysn/log-to-defmt/
max_upload_size
id749283
size5,604
(chrysn)

documentation

https://docs.rs/log-to-defmt/

README

log-to-defmt

This is a logging adapter that acts as an implementation of the log crate and hands the rendered messages off to the defmt crate.

Using this is generally not recommended: Once the log infrastructure is pulled into a project, Rust's string formatting is brought in, avoiding which is a big part of the point of defmt.

However, this can be useful during development, when debugging a particular library (that optionally produces messages through log) on a platform for which a defmt output has already been established.

Maturity

The current implementation of this takes a huge amount of shortcuts: not only does it not convert log levels, it also hardwires some to the most verbose level, discards lots of information that would otherwise be available, and uses a fixed size buffer.

Future iterations of this crate are expected to address these on demand; for example, this could gain a build time configuration mechanism for the maximum expected length, or an alloc feature that renders the log messages to a Vec instead of a heapless::Vec before handing them off to defmt as a slice.

The crate will likely introduce such features (altering its behavior) without declaring breaking changes; users are advised to configure their error levels to match which messages they expect to see.

License: MIT OR Apache-2.0

Commit count: 3

cargo fmt