dusage 0.2.0

💾 A command line disk usage information tool. Disk usage percentage is displayed in a bar with the inode usage percentage as background.
Documentation 
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use crate::filesystem::Filesystem;
use clap::ArgMatches;
use nix::sys::statvfs::Statvfs;
use std::cmp::Ordering;

#[derive(Debug)]
pub struct Stats {
    pub filesystem: String,
    pub size_disk: u64,
    pub used_disk: u64,
    pub available_disk: u64,
    pub percent_disk: f64,
    pub mount: String,
    pos: usize,
    pub total_inodes: u64,
    pub used_inodes: u64,
    pub available_inodes: u64,
    pub percent_inodes: f64,
}

impl Stats {
    pub fn new(fs: &str, mount: &str, statvfs: Statvfs, args: &ArgMatches) -> Stats {
        let size_disk = statvfs.blocks() as u64 * statvfs.fragment_size() as u64;
        let available_disk = statvfs.blocks_available() as u64 * statvfs.fragment_size() as u64;
        let free_disk = statvfs.blocks_free() as u64 * statvfs.fragment_size() as u64;

        let total_inodes = statvfs.files() as u64;
        let available_inodes = statvfs.files_available() as u64;

        let used_disk = size_disk - free_disk;
        let percent_disk = used_disk as f64 / size_disk as f64;
        let pos = grouped_pos_by_length(fs);

        let used_inodes = total_inodes - available_inodes;
        let percent_inodes = used_inodes as f64 / total_inodes as f64;

        if args.is_present("debug") {
            println!(
                "{} blocks: {} fragment_size: {} size: {} free: {} available: {}",
                fs,
                statvfs.blocks(),
                statvfs.fragment_size(),
                size_disk,
                free_disk,
                available_disk
            );
        }
        Stats {
            filesystem: fs.to_string(),
            size_disk: size_disk,
            used_disk: used_disk,
            available_disk: available_disk,
            percent_disk: 100.0 * percent_disk,
            mount: mount.to_string(),
            pos: pos,
            total_inodes: total_inodes,
            used_inodes: used_inodes,
            available_inodes: available_inodes,
            percent_inodes: 100.0 * percent_inodes,
        }
    }

    pub fn is_network(&self) -> bool {
        self.pos == Filesystem::Network as usize
    }
}

fn grouped_pos_by_length(fs: &str) -> usize {
    let mut result = Filesystem::new(fs) as usize;
    if fs.starts_with("/dev") {
        result = result + fs.len();
    }
    result
}

impl Ord for Stats {
    fn cmp(&self, other: &Stats) -> Ordering {
        let cmp = self.pos.cmp(&other.pos);
        if cmp != Ordering::Equal {
            return cmp;
        }

        self.filesystem.cmp(&other.filesystem)
    }
}

impl PartialOrd for Stats {
    fn partial_cmp(&self, other: &Stats) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

impl PartialEq for Stats {
    fn eq(&self, other: &Stats) -> bool {
        self.filesystem == other.filesystem
    }
}

impl Eq for Stats {}