65 lines
1.8 KiB
Rust
65 lines
1.8 KiB
Rust
//! Logging module.
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use std::io;
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use chrono::prelude::*;
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use colored::*;
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use log::{Level, Log, Metadata, Record, SetLoggerError};
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struct Logger {
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level: Level,
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}
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impl Log for Logger {
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fn enabled(&self, metadata: &Metadata) -> bool {
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metadata.level() <= self.level
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}
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fn log(&self, record: &Record) {
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if self.enabled(record.metadata()) {
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let target = record.target();
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if record.level() == Level::Error {
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write(record, target, io::stderr());
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} else {
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write(record, target, io::stdout());
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}
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fn write(record: &log::Record, target: &str, mut stream: impl io::Write) {
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let message = format!(
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"{:<5} {:<8} {}",
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record.level(),
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target.cyan(),
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record.args()
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);
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let message = format!(
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"{} {}",
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Local::now().to_rfc3339_opts(SecondsFormat::Millis, true),
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message,
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);
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let message = match record.level() {
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Level::Error => message.red(),
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Level::Warn => message.yellow(),
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Level::Info => message.normal(),
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Level::Debug => message.dimmed(),
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Level::Trace => message.white().dimmed(),
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};
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writeln!(stream, "{message}").expect("write shouldn't fail");
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}
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}
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}
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fn flush(&self) {}
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}
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/// Initialize a new logger.
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pub fn init(level: Level) -> Result<(), SetLoggerError> {
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let logger = Logger { level };
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log::set_boxed_logger(Box::new(logger))?;
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log::set_max_level(level.to_level_filter());
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Ok(())
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}
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