lagos_logger 0.2.5

A simple, colorful logging macro crate
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66

#[cfg(feature = "time")]
pub use chrono::Local;
pub use colored::*;

pub enum Level {
    Info,
    Warn,
    Error,
    Running,
    Success,
}

#[cfg(feature = "time")]
#[macro_export]
macro_rules! logger {
    ($fmt:literal, $($arg:tt)*) => {{
        $crate::logger!($crate::Level::Info, $fmt, $($arg)*)
    }};
    ($fmt:literal) => {{
        $crate::logger!($crate::Level::Info, $fmt)
    }};
    ($level:expr, $($arg:tt)*) => {{
        let time = $crate::Local::now().format("%Y-%m-%d %H:%M:%S");

        match $level {
            $crate::Level::Info => println!("{} {} {}", "Info".bright_green().bold(), time, format_args!($($arg)*)),
            $crate::Level::Warn => println!("{} {} {}", "Warn".bright_yellow().bold(), time, format_args!($($arg)*)),
            $crate::Level::Error => eprintln!("{} {} {}", "Error".bright_red().bold(), time, format_args!($($arg)*)),
            $crate::Level::Running => println!("{} {} {}", "Running".bright_green().bold(), time, format_args!($($arg)*)),
            $crate::Level::Success => println!("{} {} {}", "Success".bright_green().bold(), time, format_args!($($arg)*)),
        }
    }};
}

#[cfg(not(feature = "time"))]
#[macro_export]
macro_rules! logger {
    ($fmt:literal, $($arg:tt)*) => {{
        $crate::logger!($crate::Level::Info, $fmt, $($arg)*)
    }};
    ($fmt:literal) => {{
        $crate::logger!($crate::Level::Info, $fmt)
    }};
    ($level:expr, $($arg:tt)*) => {{
        match $level {
            $crate::Level::Info => println!("{:>12} {}", "Info".bright_green().bold(), format_args!($($arg)*)),
            $crate::Level::Warn => println!("{:>12} {}", "Warn".bright_yellow().bold(), format_args!($($arg)*)),
            $crate::Level::Error => eprintln!("{:>12} {}", "Error".bright_red().bold(), format_args!($($arg)*)),
            $crate::Level::Running => println!("{:>12} {}", "Running".bright_green().bold(), format_args!($($arg)*)),
            $crate::Level::Success => println!("{:>12} {}", "Success".bright_green().bold(), format_args!($($arg)*)),
        }
    }};
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_logger() {
        logger!("This is a test info message");
        logger!("This is a test info message with arg: {}", "hello");
        logger!(Level::Info, "This is an explicit info message");
        logger!(Level::Warn, "This is a warn message: {}", 42);
    }
}