42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
//! The `logger` module configures `env_logger`
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use lazy_static::lazy_static;
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use std::sync::{Arc, RwLock};
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lazy_static! {
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static ref LOGGER: Arc<RwLock<env_logger::Logger>> =
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{ Arc::new(RwLock::new(env_logger::Logger::from_default_env())) };
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}
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struct LoggerShim {}
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impl log::Log for LoggerShim {
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fn enabled(&self, metadata: &log::Metadata) -> bool {
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LOGGER.read().unwrap().enabled(metadata)
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}
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fn log(&self, record: &log::Record) {
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LOGGER.read().unwrap().log(record);
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}
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fn flush(&self) {}
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}
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// Configures logging with a specific filter.
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// May be called at any time to re-configure the log filter
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pub fn setup_with_filter(filter: &str) {
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let logger = env_logger::Builder::from_env(env_logger::Env::new().default_filter_or(filter))
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.format_timestamp_nanos()
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.build();
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let max_level = logger.filter();
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log::set_max_level(max_level);
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let mut rw = LOGGER.write().unwrap();
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std::mem::replace(&mut *rw, logger);
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let _ = log::set_boxed_logger(Box::new(LoggerShim {}));
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}
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// Configures logging with the default filter ("error")
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pub fn setup() {
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setup_with_filter("error");
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}
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