qc-cli 0.5.1

qc is designed to give you an instant breakdown of your codebase composition. It uses Memory Mapping (Mmap) and Parallel Directory Walking to scan tens of thousands of files in milliseconds.
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// src/main.rs
mod args;
mod assets;
mod output;
mod result;
mod walk;
mod report;

use std::time::Instant;
use std::fs;
use crate::args::OutputFormat;

fn main() {
    let config = args::parse_args();

    println!("Scanning: {} (Top {} files)", config.root, config.top_n);

    let start = Instant::now();
    let mut results = walk::parallel_scan(&config.root);

    if let Some(ref allowed) = config.langs {
        results.retain(|r| allowed.contains(&r.lang));
    }

    let duration = start.elapsed();

    let report = report::build_report(&results, duration, config.top_n);

    match config.format {
        OutputFormat::Text => {
            output::text::print_results(&mut results, config.top_n, duration);
        }
        OutputFormat::Json => {
            let json = output::json::render_json(&report);

            if let Some(path) = &config.json_out {
                fs::write(path, json).unwrap_or_else(|e| {
                    eprintln!(
                        "\x1b[31;1mError:\x1b[0m Failed to write JSON to {}: {}",
                        path.display(),
                        e
                    );
                    std::process::exit(1);
                });
            } else {
                println!("{}", json);
            }
        }
    }
}