fabaccess-bffh/bffhd/logging.rs

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use tracing_subscriber::EnvFilter;
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use serde::{Deserialize, Serialize};
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#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LogConfig {
#[serde(default, skip_serializing_if = "Option::is_none")]
/// Log filter string in the tracing format `target[span{field=value}]=level`.
/// lvalue is optional and multiple filters can be combined with comma.
/// e.g. `warn,diflouroborane::actors=debug` will only print `WARN` and `ERROR` unless the
/// message is logged in a span below `diflouroborane::actors` (i.e. by an actor task) in
/// which case `DEBUG` and `INFO` will also be printed.
pub filter: Option<String>,
pub format: String,
}
impl Default for LogConfig {
fn default() -> Self {
Self {
filter: None,
format: "full".to_string(),
}
}
}
pub fn init(config: &LogConfig) {
let filter = if let Some(ref filter) = config.filter {
EnvFilter::new(filter.as_str())
} else {
EnvFilter::from_env("BFFH_LOG")
};
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let builder = tracing_subscriber::fmt().with_env_filter(filter);
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let format = config.format.to_lowercase();
match format.as_str() {
"compact" => builder.compact().init(),
"pretty" => builder.pretty().init(),
"full" => builder.init(),
_ => builder.init(),
}
tracing::info!(format = format.as_str(), "Logging initialized")
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}