1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
use lazy_static::lazy_static;
use std::sync::{Arc, RwLock};
lazy_static! {
static ref LOGGER: Arc<RwLock<env_logger::Logger>> =
{ Arc::new(RwLock::new(env_logger::Logger::from_default_env())) };
}
struct LoggerShim {}
impl log::Log for LoggerShim {
fn enabled(&self, metadata: &log::Metadata) -> bool {
LOGGER.read().unwrap().enabled(metadata)
}
fn log(&self, record: &log::Record) {
LOGGER.read().unwrap().log(record);
}
fn flush(&self) {}
}
pub fn setup_with_filter(filter: &str) {
let logger = env_logger::Builder::from_env(env_logger::Env::new().default_filter_or(filter))
.format_timestamp_nanos()
.build();
let max_level = logger.filter();
log::set_max_level(max_level);
let mut rw = LOGGER.write().unwrap();
std::mem::replace(&mut *rw, logger);
let _ = log::set_boxed_logger(Box::new(LoggerShim {}));
}
pub fn setup() {
setup_with_filter("error");
}