tracing-systemd 0.1.0

//! `tracing-subscriber` layer for logging to the systemd journal
//!
//! Provides a [`SystemdLayer`] implementation for use with `tracing-subscriber` that can be configured.
//! Shows all spans and arguments.
//!
//! # Features
//! - `colored` (default): Enables colored output
//! - `sd-journal`: Enables logging to the systemd journal (useful for running outside of a service)
//!     - Requires `libsystemd-dev` to be installed
//!     - Filter using `-t` | `--identifier` (e.g. `journalctl -t <identifier>`)
//!
//! # Example
//! ```rust
//! use tracing::error;
//!
//! use tracing::{debug, info, instrument, trace, warn};
//! use tracing_subscriber::prelude::*;
//! use tracing_systemd::SystemdLayer;
//! fn main() {
//!     tracing_subscriber::registry()
//!         .with(
//!             SystemdLayer::new()
//!                 .with_target(true)
//!                 .use_level_prefix(false)
//!                 .use_color(true)
//!                 .with_thread_ids(true),
//!         )
//!         .init();
//!
//!     root_log_fn(true);
//! }
//!
//! #[instrument(fields(outside_instrument_field = true))]
//! fn root_log_fn(outside_instrument_field: bool) {
//!     info!("Root log");
//!     inner_log_1(true);
//! }
//!
//! #[instrument(fields(inside_instrument_field = true))]
//! fn inner_log_1(inside_parameter_field: bool) {
//!     trace!("this is a trace");
//!     debug!(field_in_function = "also works");
//!     info!("this is an info log");
//!     warn!("Inner log 1");
//!     error!("this is an error");
//! }
//! ```

#![warn(missing_docs)]

mod formatting;
mod systemd_layer;

pub use systemd_layer::SystemdLayer;

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn it_works() {
        let result = 2 + 2;
        assert_eq!(result, 4);
    }
}