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
|
/*!
Disabling parts of the default format.
Before running this example, try setting the `MY_LOG_LEVEL` environment variable to `info`:
```no_run,shell
$ export MY_LOG_LEVEL='info'
```
Also try setting the `MY_LOG_STYLE` environment variable to `never` to disable colors
or `auto` to enable them:
```no_run,shell
$ export MY_LOG_STYLE=never
```
If you want to control the logging output completely, see the `custom_logger` example.
*/
#[macro_use]
extern crate log;
use env_logger::{Builder, Env};
fn init_logger() {
let env = Env::default()
.filter("MY_LOG_LEVEL")
.write_style("MY_LOG_STYLE");
let mut builder = Builder::from_env(env);
builder.format_level(false).format_timestamp_nanos();
builder.init();
}
fn main() {
init_logger();
info!("a log from `MyLogger`");
}
|
