clang_log 1.0.1

#![forbid(missing_docs)]

//! Implementation of `log`, aiming to emulate `clang`

use colored::Colorize;
use log::{Level, Log, Metadata, Record, SetLoggerError};

/// Logger struct.

pub struct Logger {
    /// Minimum level this logger will print.
    pub min_level: Level,
    /// Name of the program, set to "clang" in clang.
    pub prog_name: String,
}

impl Logger {
    /// Initilize logger with fields

    pub fn init(min_level: Level, prog_name: String) -> Result<(), SetLoggerError> {
        log::set_max_level(min_level.to_level_filter());

        let logger = Logger {
            min_level,
            prog_name,
        };
        log::set_boxed_logger(Box::new(logger))
    }
}

impl Log for Logger {
    fn enabled(&self, metadata: &Metadata) -> bool {
        metadata.level() <= self.min_level
    }

    fn log(&self, record: &Record) {
        if !self.enabled(record.metadata()) {
            return;
        }

        println!(
            "{}: {}: {}",
            self.prog_name,
            match record.level() {
                Level::Error => {
                    "error".red().bold()
                }
                Level::Warn => {
                    "warning".bright_purple().bold()
                }
                Level::Info => {
                    "info".bright_black().bold()
                    //"note".black().bold() // Clang Behavior
                }
                Level::Debug => {
                    "debug".yellow().bold() // Clang doesn't have debug logs
                }
                Level::Trace => {
                    "trace".white().bold() // Clang doesn't have trace logs
                }
            },
            record.args().as_str().unwrap().bold()
        );
    }

    fn flush(&self) {}
}