use env_logger::{Builder, Env, Target}; pub fn init_log_system() { let env = Env::new() .filter_or(crate::LOG_LEVEL_ENV_VAR, "warn") .write_style_or(crate::LOG_STYLE_ENV_VAR, "never"); let mut builder = Builder::from_env(env); builder.target(Target::Stderr); builder.init(); }