apollo_infra_utils 0.18.0-dev.0

Infrastructure utility.
Documentation 
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use tracing::level_filters::LevelFilter;
use tracing::Level;
use tracing_subscriber::prelude::*;
use tracing_subscriber::reload::Handle;
use tracing_subscriber::{filter, fmt, reload, Registry};

// TODO(Amos, 1/8/2024): Move all tracing instantiations in the Sequencer repo to a common location.
pub fn configure_tracing() -> Handle<LevelFilter, Registry> {
    // Create a handle to the global filter to allow setting log level at runtime.
    let (global_filter, global_filter_handle) = reload::Layer::new(filter::LevelFilter::INFO);
    let layer = fmt::Layer::default()
        .with_ansi(false)
        .with_target(false)
        .with_file(true)
        .with_line_number(true);
    tracing_subscriber::registry().with(global_filter).with(layer).init();
    global_filter_handle
}

/// Change the given log handle to the given log level.
pub fn modify_log_level(log_level: String, log_filter_handle: Handle<LevelFilter, Registry>) {
    let level = match log_level.to_lowercase().as_str() {
        "error" => Level::ERROR,
        "warn" => Level::WARN,
        "info" => Level::INFO,
        "debug" => Level::DEBUG,
        "trace" => Level::TRACE,
        _ => Level::INFO,
    };
    log_filter_handle
        .modify(|filter| *filter = level.into())
        .expect("Failed to set the log level.");
}