makeclean 1.3.0

Clean up projects you're no longer working on.
Documentation 
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//! Utility functions for file system handling.

use std::path::Path;

use walkdir::WalkDir;

pub(crate) fn dir_size(path: &Path) -> u64 {
    if !path.is_dir() {
        return 0;
    }

    WalkDir::new(path)
        .into_iter()
        .filter_map(|entry| entry.ok())
        .filter_map(|entry| entry.metadata().ok())
        .filter(|metadata| metadata.is_file())
        .fold(0, |acc, m| acc + m.len())
}

#[allow(non_upper_case_globals)]
pub fn format_size(bytes: u64) -> String {
    static KiB: u64 = 1024;
    static MiB: u64 = KiB * 1024;
    static GiB: u64 = MiB * 1024;
    static TiB: u64 = GiB * 1024;
    match bytes {
        n if n < 3 * KiB => format!("{} B", n),
        n if n < 3 * MiB => format!("{} KiB", n / KiB),
        n if n < 3 * GiB => format!("{} MiB", n / MiB),
        n if n < 3 * TiB => format!("{} GiB", n / GiB),
        n => format!("{} TiB", n / TiB),
    }
}