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Log: Add option to set LevelFilter at compile time #53

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May 17, 2020
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Log: Add option to set LevelFilter at compile time #53

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13 changes: 12 additions & 1 deletion src/logging.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,18 @@ impl log::Log for KernelLogger {

pub fn init() {
set_logger(&KernelLogger).expect("Can't initialize logger");
set_max_level(LevelFilter::Info);
// Determines LevelFilter at compile time
let log_level: Option<&'static str> = option_env!("HERMIT_LOG_LEVEL_FILTER");
let max_level: LevelFilter = match log_level {
Some("Error") => LevelFilter::Error,
Some("Debug") => LevelFilter::Debug,
Some("Off") => LevelFilter::Off,
Some("Trace") => LevelFilter::Trace,
Some("Warn") => LevelFilter::Warn,
Some("Info") => LevelFilter::Info,
_ => LevelFilter::Info,
};
set_max_level(max_level);
}

macro_rules! infoheader {
Expand Down