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#![warn(missing_docs)]
#[cfg(feature = "trace")]
use std::panic;
#[cfg(target_os = "android")]
mod android_tracing;
pub mod prelude {
#[doc(hidden)]
pub use bevy_utils::tracing::{
debug, debug_span, error, error_span, info, info_span, trace, trace_span, warn, warn_span,
};
}
pub use bevy_utils::tracing::{
debug, debug_span, error, error_span, info, info_span, trace, trace_span, warn, warn_span,
Level,
};
use bevy_app::{App, Plugin};
use tracing_log::LogTracer;
#[cfg(feature = "tracing-chrome")]
use tracing_subscriber::fmt::{format::DefaultFields, FormattedFields};
use tracing_subscriber::{prelude::*, registry::Registry, EnvFilter};
pub struct LogPlugin {
pub filter: String,
pub level: Level,
}
impl Default for LogPlugin {
fn default() -> Self {
Self {
filter: "wgpu=error".to_string(),
level: Level::INFO,
}
}
}
impl Plugin for LogPlugin {
#[cfg_attr(not(feature = "tracing-chrome"), allow(unused_variables))]
fn build(&self, app: &mut App) {
#[cfg(feature = "trace")]
{
let old_handler = panic::take_hook();
panic::set_hook(Box::new(move |infos| {
println!("{}", tracing_error::SpanTrace::capture());
old_handler(infos);
}));
}
let finished_subscriber;
let default_filter = { format!("{},{}", self.level, self.filter) };
let filter_layer = EnvFilter::try_from_default_env()
.or_else(|_| EnvFilter::try_new(&default_filter))
.unwrap();
let subscriber = Registry::default().with(filter_layer);
#[cfg(feature = "trace")]
let subscriber = subscriber.with(tracing_error::ErrorLayer::default());
#[cfg(all(not(target_arch = "wasm32"), not(target_os = "android")))]
{
#[cfg(feature = "tracing-chrome")]
let chrome_layer = {
let mut layer = tracing_chrome::ChromeLayerBuilder::new();
if let Ok(path) = std::env::var("TRACE_CHROME") {
layer = layer.file(path);
}
let (chrome_layer, guard) = layer
.name_fn(Box::new(|event_or_span| match event_or_span {
tracing_chrome::EventOrSpan::Event(event) => event.metadata().name().into(),
tracing_chrome::EventOrSpan::Span(span) => {
if let Some(fields) =
span.extensions().get::<FormattedFields<DefaultFields>>()
{
format!("{}: {}", span.metadata().name(), fields.fields.as_str())
} else {
span.metadata().name().into()
}
}
}))
.build();
app.world.insert_non_send_resource(guard);
chrome_layer
};
#[cfg(feature = "tracing-tracy")]
let tracy_layer = tracing_tracy::TracyLayer::new();
let fmt_layer = tracing_subscriber::fmt::Layer::default();
#[cfg(feature = "tracing-tracy")]
let fmt_layer =
fmt_layer.with_filter(tracing_subscriber::filter::FilterFn::new(|meta| {
meta.fields().field("tracy.frame_mark").is_none()
}));
let subscriber = subscriber.with(fmt_layer);
#[cfg(feature = "tracing-chrome")]
let subscriber = subscriber.with(chrome_layer);
#[cfg(feature = "tracing-tracy")]
let subscriber = subscriber.with(tracy_layer);
finished_subscriber = subscriber;
}
#[cfg(target_arch = "wasm32")]
{
console_error_panic_hook::set_once();
finished_subscriber = subscriber.with(tracing_wasm::WASMLayer::new(
tracing_wasm::WASMLayerConfig::default(),
));
}
#[cfg(target_os = "android")]
{
finished_subscriber = subscriber.with(android_tracing::AndroidLayer::default());
}
let logger_already_set = LogTracer::init().is_err();
let subscriber_already_set =
bevy_utils::tracing::subscriber::set_global_default(finished_subscriber).is_err();
match (logger_already_set, subscriber_already_set) {
(true, true) => warn!(
"Could not set global logger and tracing subscriber as they are already set. Consider disabling LogPlugin."
),
(true, _) => warn!("Could not set global logger as it is already set. Consider disabling LogPlugin."),
(_, true) => warn!("Could not set global tracing subscriber as it is already set. Consider disabling LogPlugin."),
_ => (),
}
}
}