1 use std::io::Write;
2 
main()3 fn 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 }
25