Rust Log Utils, use to print line number in console output. (Only tested in RustRover )

rust_log_utils_demo.rs

mod utils_log;

fn main() {
   utils_log::log("hello world");
}

utils_log.rs

use std::env;
use std::path::Path;
use backtrace::{Backtrace, BacktraceFrame, BacktraceSymbol};
use chrono::{DateTime, Local};

fn previous_symbol(level: u32) -> Option<BacktraceSymbol> {
    let (trace, curr_file, curr_line) = (Backtrace::new(), file!(), line!());
    let frames = trace.frames();
    frames.iter()
        .flat_map(BacktraceFrame::symbols)
        .skip_while(|s| s.filename().map(|p| !p.ends_with(curr_file)).unwrap_or(true)
            || s.lineno() != Some(curr_line))
        .nth(1 + level as usize).cloned()
}
pub(crate) fn log(msg: &str) {
    let sym = previous_symbol(1);
    if let (Some(line_no), Some(file_name)) =
            (sym.as_ref().and_then(BacktraceSymbol::lineno), sym.as_ref().and_then(BacktraceSymbol::filename)) {
        if let Ok(curr_dir) = env::current_dir() {
            if let Some(relative_path) = Path::new(&file_name)
                .strip_prefix(&curr_dir)
                .ok()
                .and_then(|p| p.to_str())
            {
                let current_time: DateTime<Local> = Local::now();
                let formatted_time = current_time.format("%Y-%m-%d %H:%M:%S%.3f").to_string();
                println!("  --> {:}:{}][{}]:{}", relative_path, line_no, formatted_time, msg);
                return;
            }
        }
    }
}