pub fn builder() -> Builder
Expand description
Create a new builder with the default environment variables.
The builder can be configured before being initialized.
This is a convenient way of calling Builder::from_default_env
.
Examples found in repository?
examples/syslog_friendly_format.rs (line 5)
3fn main() {
4 match std::env::var("RUST_LOG_STYLE") {
5 Ok(s) if s == "SYSTEMD" => env_logger::builder()
6 .format(|buf, record| {
7 writeln!(
8 buf,
9 "<{}>{}: {}",
10 match record.level() {
11 log::Level::Error => 3,
12 log::Level::Warn => 4,
13 log::Level::Info => 6,
14 log::Level::Debug => 7,
15 log::Level::Trace => 7,
16 },
17 record.target(),
18 record.args()
19 )
20 })
21 .init(),
22 _ => env_logger::init(),
23 };
24}