mirror of
https://github.com/nachoparker/dutree
synced 2024-05-04 22:36:05 +02:00
636 lines
22 KiB
Rust
636 lines
22 KiB
Rust
///
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/// - dutree lib -
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///
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/// Simple command to analyse disk usage from the terminal
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///
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/// Usage:
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/// btrfs-sync [options] <src> [<src>...] [[user@]host:]<dir>
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///
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/// -k|--keep NUM keep only last <NUM> sync'ed snapshots
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/// -d|--delete delete snapshots in <dst> that don't exist in <src>
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/// -z|--xz use xz compression. Saves bandwidth, but uses one CPU
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/// -Z|--pbzip2 use pbzip2 compression. Saves bandwidth, but uses all CPUs
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/// -q|--quiet don't display progress
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/// -v|--verbose display more information
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/// -h|--help show usage
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///
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/// <src> can either be a single snapshot, or a folder containing snapshots
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/// <user> requires privileged permissions at <host> for the 'btrfs' command
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///
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/// Cron example: daily synchronization over the internet, keep only last 50
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///
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/// cat > /etc/cron.daily/btrfs-sync <<EOF
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/// #!/bin/bash
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/// /usr/local/sbin/btrfs-sync -q -k50 -z /home user@host:/path/to/snaps
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/// EOF
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/// chmod +x /etc/cron.daily/btrfs-sync
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///
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/// Copyleft 2018 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
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/// GPL licensed (see end of file) * Use at your own risk!
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///
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/// More at https://ownyourbits.com
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///
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extern crate getopts;
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extern crate terminal_size;
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extern crate regex;
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extern crate unicode_width;
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use getopts::Options;
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use std::io;
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use std::path::{Path, PathBuf};
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use std::fs;
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use terminal_size::{Width, Height, terminal_size};
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use regex::Regex;
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use std::os::linux::fs::MetadataExt;
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use std::env;
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const VERSTR : &str = "v0.2.0";
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const DEF_WIDTH : u16 = 80;
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pub enum XResult<T,S> {
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XOk(T),
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XErr(S),
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XExit,
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}
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use XResult::{XOk, XExit, XErr};
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struct Entry {
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name : String,
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bytes : u64,
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color : Option<String>,
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last : bool,
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entries : Option<Vec<Entry>>,
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}
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pub struct Config {
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paths : Vec<PathBuf>,
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color_dict : Vec<DictEntry>,
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depth : u8,
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depth_flag : bool,
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bytes_flag : bool,
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usage_flag : bool,
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hiddn_flag : bool,
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ascii_flag : bool,
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no_dir_flg : bool,
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aggr : u64,
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exclude : Vec<String>,
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}
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struct DictEntry { key : String, val : String }
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fn init_opts() -> Options {
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let mut options = Options::new();
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options.optflagopt( "d", "depth" , "show directories up to depth N (def 1)", "DEPTH" );
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options.optflagopt( "a", "aggr" , "aggregate smaller than N B/KiB/MiB/GiB (def 1M)", "N[KMG]");
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options.optflag( "s", "summary" , "equivalent to -da, or -d1 -a1M" );
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options.optflag( "u", "usage" , "report real disk usage instead of file size");
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options.optflag( "b", "bytes" , "print sizes in bytes" );
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options.optflag( "f", "files-only","skip directories for a fast local overview" );
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options.optmulti( "x", "exclude" , "exclude matching files or directories", "NAME");
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options.optflag( "H", "no-hidden", "exclude hidden files" );
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options.optflag( "A", "ascii" , "ASCII characters only, no colors" );
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options.optflag( "h", "help" , "show help" );
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options.optflag( "v", "version" , "print version number" );
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options
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}
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impl Config {
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pub fn new() -> XResult<Config, String> {
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let args: Vec<String> = env::args().collect();
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let program = args[0].clone();
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let options = init_opts();
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let opt = match options.parse(&args[1..]) {
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Ok(m) => m,
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Err(err) =>{ print_usage(&program, &options); return XErr( err.to_string() )},
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};
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if opt.opt_present("h") {
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print_usage(&program, &options);
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return XExit;
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}
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if opt.opt_present("v") {
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println!("dutree version {}", VERSTR);
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return XExit;
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};
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let color_dict = create_color_dict();
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let mut paths : Vec<PathBuf> = Vec::new();
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if opt.free.len() == 0 {
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let mut path = std::path::PathBuf::new();
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path.push( ".".to_string() );
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paths.push( path );
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} else {
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for opt in &opt.free {
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let mut path = std::path::PathBuf::new();
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path.push( &opt );
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paths.push( path );
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}
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}
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for p in &paths {
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if !p.exists() {
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return XErr( format!( "path {} doesn't exist", p.display() ) );
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}
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}
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let mut depth_flag = opt.opt_present("d");
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let depth_opt = opt.opt_str("d");
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let mut depth = depth_opt.unwrap_or("1".to_string()).parse().unwrap_or(1);
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let bytes_flag = opt.opt_present("b");
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let usage_flag = opt.opt_present("u");
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let hiddn_flag = opt.opt_present("H");
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let ascii_flag = opt.opt_present("A");
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let no_dir_flg = opt.opt_present("f");
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let mut aggr = if opt.opt_present("a") {
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let aggr_opt = opt.opt_str("a");
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let aggr_val = aggr_opt.unwrap_or("1M".to_string());
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if !Regex::new(r"^\d+\D?$").unwrap().is_match( aggr_val.as_str() ){
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return XErr( format!( "invalid argument '{}'", aggr_val ) );
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}
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let unit = aggr_val.matches(char::is_alphabetic).next().unwrap_or("B");
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let num : Vec<&str> = aggr_val.matches(char::is_numeric).collect();
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let num : u64 = num.concat().parse().unwrap();
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let factor = match unit {
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"b" | "B" => 1024u64.pow(0),
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"k" | "K" => 1024u64.pow(1),
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"m" | "M" => 1024u64.pow(2),
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"g" | "G" => 1024u64.pow(3),
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"t" | "T" => 1024u64.pow(4),
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_ => 1024u64.pow(0),
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};
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num * factor
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} else {
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0
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};
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let exclude = opt.opt_strs("x");
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if opt.opt_present("s") {
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depth_flag = true;
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depth = 1;
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aggr = 1024u64.pow(2);
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}
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XOk( Config{ paths, color_dict, depth, depth_flag, bytes_flag,
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usage_flag, hiddn_flag, ascii_flag, no_dir_flg, aggr, exclude } )
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}
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}
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fn try_is_symlink( path : &Path ) -> bool {
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let metadata = path.symlink_metadata();
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metadata.is_ok() && metadata.unwrap().file_type().is_symlink()
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}
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fn file_name_from_path( path : &Path ) -> String {
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let mut abspath = std::env::current_dir().unwrap();
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abspath.push( path );
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// don't resolve links
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if !try_is_symlink( path ) {
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abspath = abspath.canonicalize().unwrap_or( abspath );
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}
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abspath.file_name().unwrap_or( std::ffi::OsStr::new( "/" ) ) // '/' has no filename
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.to_str().unwrap_or( "[invalid name]" ).to_string()
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}
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fn try_read_dir( path : &Path ) -> Option<fs::ReadDir> {
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if try_is_symlink( path ) { return None } // don't follow symlinks
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match path.read_dir() {
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Ok(dir_list) => Some(dir_list),
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Err(err) => {
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print_io_error( path, err );
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None
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},
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}
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}
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fn try_bytes_from_path( path : &Path, usage_flag : bool ) -> u64 {
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match path.symlink_metadata() {
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Ok(metadata) => if usage_flag { metadata.st_blocks()*512 } else { metadata.st_size() },
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Err(err) => {
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print_io_error( path, err );
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0
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},
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}
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}
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fn path_from_dentry( entry : Result<fs::DirEntry, io::Error> ) -> Option<std::path::PathBuf> {
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match entry {
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Ok(entry) => {
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Some( entry.path() )
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},
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Err(err) => {
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eprintln!( "Couldn't read entry ({:?})", err.kind() );
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None
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},
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}
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}
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fn print_io_error( path: &Path, err: io::Error ) {
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eprintln!( "Couldn't read {} ({:?})", file_name_from_path( path ), err.kind() )
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}
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impl Entry {
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fn new( path: &Path, cfg : &Config, depth : u8 ) -> Entry {
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let name = file_name_from_path( path );
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// recursively create directory tree of entries up to depth
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let depth = if cfg.depth_flag { depth - 1 } else { 1 };
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let entries = if path.is_dir() && ( !cfg.depth_flag || depth > 0 ) {
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let mut aggr_bytes = 0;
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if let Some( dir_list ) = try_read_dir( path ) {
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let mut vec : Vec<Entry> = Vec::new();
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for entry in dir_list {
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if let Some( path ) = path_from_dentry( entry ) {
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let entry_name = &file_name_from_path(&path);
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// argument filters
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if cfg.exclude.iter().any( |p| entry_name == p ){ continue }
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if cfg.hiddn_flag && &entry_name[..1] == "." { continue }
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if cfg.no_dir_flg && path.is_dir() { continue }
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let entry = Entry::new( &path.as_path(), cfg, depth );
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if cfg.aggr > 0 && entry.bytes < cfg.aggr {
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aggr_bytes += entry.bytes;
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} else {
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vec.push( entry );
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}
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}
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}
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vec.sort_unstable_by( |a, b| b.bytes.cmp( &a.bytes ) );
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if aggr_bytes > 0 {
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vec.push( Entry {
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name: "<aggregated>".to_string(),
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bytes: aggr_bytes,
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color: None,
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last : true,
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entries: None,
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} );
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}
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let len = vec.len();
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if len > 0 {
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vec[len-1].last = true;
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}
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Some( vec )
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} else { None }
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} else { None };
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// calculate sizes
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let bytes = if let Some(ref entries) = entries {
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let mut total = try_bytes_from_path( path, cfg.usage_flag );
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for entry in entries {
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total += entry.bytes;
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}
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total
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} else {
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get_bytes( path, cfg.usage_flag )
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};
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// calculate color
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let color = if !cfg.ascii_flag {color_from_path(path, &cfg.color_dict)} else {None};
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Entry { name, bytes, color, last: false, entries }
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}
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fn print_entries( &self, open_parents : Vec<bool>, parent_vals : Vec<u64>,
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bytes_flag : bool, ascii_flag : bool, bar_width : usize, tree_name_width : usize ) {
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if let Some(ref entries) = self.entries {
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for entry in entries {
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let mut op = open_parents.clone();
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let mut bytes = parent_vals.clone();
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bytes.push( entry.bytes );
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// make sure the name column has the right length
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let tree_width = (open_parents.len() + 1) * 3; // 3 chars per tree branch
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if tree_name_width >= tree_width {
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let name_width = tree_name_width - tree_width;
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let length = unicode_width::UnicodeWidthStr::width(entry.name.as_str());
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let mut name = entry.name.clone();
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name.truncate( name_width );
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// surround name by ANSII color escape sequences
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if let Some( ref col_str ) = entry.color {
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name.insert( 0, 'm' );
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name.insert( 0, 0o33 as char );
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name.insert( 1, '[' );
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name.insert_str( 2, col_str );
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name.push( 0o33 as char );
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name.push_str( "[0m" );
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}
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if length < name_width {
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(length..name_width).for_each( |_| name.push( ' ' ) );
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}
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// draw the tree
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for open in &open_parents {
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if *open { print!( " " ); }
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else { print!( "│ " ); }
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}
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if entry.last { print!( "└─ " ); op.push( true ); }
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else { print!( "├─ " ); op.push( false ); }
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// print it
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println!( "{} {} {:>13}",
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name,
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fmt_bar( &bytes, bar_width, ascii_flag ),
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fmt_size_str( entry.bytes, bytes_flag ) );
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if let Some(_) = entry.entries {
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entry.print_entries( op, bytes, bytes_flag, ascii_flag,
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bar_width, tree_name_width );
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}
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}
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}
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}
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}
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fn print( &self, bytes_flag : bool, ascii_flag : bool ) {
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// calculate plot widths
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let mut twidth = DEF_WIDTH;
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let size = terminal_size();
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if let Some( ( Width(w), Height(_h) ) ) = size {
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twidth = w;
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} else {
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eprintln!("Unable to get terminal size");
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}
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let size_width = 15;
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let var_width = twidth - size_width;
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let bar_width = var_width as usize * 75 / 100;
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let tree_name_width = var_width as usize * 25 / 100;
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// initalize
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let open_parents : Vec<bool> = Vec::new();
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let mut parent_vals : Vec<u64> = Vec::new();
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parent_vals.push( self.bytes );
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// print
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println!( "[ {} {} ]", self.name, fmt_size_str( self.bytes, bytes_flag ) );
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self.print_entries( open_parents, parent_vals, bytes_flag, ascii_flag,
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bar_width, tree_name_width );
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}
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}
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fn fmt_bar( bytes : &Vec<u64>, width : usize, ascii_flag : bool ) -> String {
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let width = width as u64 - 2 - 5; // not including bars and percentage
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let mut str = String::with_capacity( width as usize );
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str.push( '│' );
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let mut bytesi = bytes.iter();
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let mut total = bytesi.next().unwrap();
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let mut part = bytesi.next().unwrap();
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let mut bars = ( part * width ) / total;
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let mut pos = width - bars;
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let block_char = if ascii_flag { vec![ ' ', '#' ] } else { vec![ ' ', 'â–‘', 'â–’', 'â–“', 'â–ˆ' ] };
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let mut chr = 0;
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let levels = bytes.len() - 1;
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for x in 0..width {
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if x > pos {
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total = part;
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part = bytesi.next().unwrap_or(&0);
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bars = ( part * bars ) / total;
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pos = width - bars;
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chr += 1;
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if chr == levels || chr >= block_char.len() {
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chr = block_char.len() - 1; // last level, solid 'â–ˆ'
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}
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}
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str.push( block_char[chr] );
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}
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format!( "{}│ {:3}%", str, ( bytes[bytes.len()-1] * 100 ) / bytes[bytes.len()-2] )
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}
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fn fmt_size_str( bytes : u64, flag : bool ) -> String {
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let b = bytes as f32;
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if bytes < 1024 || flag { format!( "{:.2} B" , bytes ) }
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else if bytes < 1024u64.pow(2) { format!( "{:.2} KiB", b/1024.0 ) }
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else if bytes < 1024u64.pow(3) { format!( "{:.2} MiB", b/(1024u32.pow(2) as f32)) }
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else if bytes < 1024u64.pow(4) { format!( "{:.2} GiB", b/(1024u32.pow(3) as f32)) }
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else { format!( "{:.2} TiB", b/(1024u32.pow(4) as f32)) }
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}
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fn get_bytes( path: &Path, usage_flag : bool ) -> u64 {
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if path.is_dir() {
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let mut bytes : u64 = try_bytes_from_path( path, usage_flag );
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if let Some(dir_list) = try_read_dir( path ) {
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for entry in dir_list {
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if let Some(path) = path_from_dentry( entry ) {
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bytes += get_bytes( &path, usage_flag );
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}
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}
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}
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bytes
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} else {
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try_bytes_from_path( path, usage_flag )
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}
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}
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fn color_from_path( path : &Path, color_dict : &Vec<DictEntry> ) -> Option<String> {
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if try_is_symlink( path ) {
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if path.read_link().unwrap().exists() {
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if let Some( col ) = dict_get( color_dict, "ln" ) {
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return Some( col.to_string() );
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}
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} else {
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if let Some( col ) = dict_get( color_dict, "or" ) {
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return Some( col.to_string() );
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}
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}
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}
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let metadata = path.symlink_metadata();
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if metadata.is_ok() {
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let mode = metadata.unwrap().st_mode();
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if path.is_dir() {
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if mode & 0o002 != 0 { // dir other writable
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if let Some( col ) = dict_get( color_dict, "ow" ) {
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return Some( col.to_string() );
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}
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}
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if let Some( col ) = dict_get( color_dict, "di" ) {
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return Some( col.to_string() );
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}
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}
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if mode & 0o111 != 0 { // executable
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if let Some( col ) = dict_get( color_dict, "ex" ) {
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return Some( col.to_string() );
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}
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}
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}
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if let Some( ext_str ) = path.extension() {
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for col in color_dict {
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if &col.key[..2] != "*." { continue }
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let key = col.key.trim_left_matches( "*." );
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if ext_str == key {
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return Some( dict_get( color_dict, col.key.as_str() ).unwrap().to_string() );
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}
|
|
}
|
|
}
|
|
if path.is_file() {
|
|
if let Some( col ) = dict_get( color_dict, "fi" ) {
|
|
return Some( col.to_string() );
|
|
}
|
|
else { return None }
|
|
}
|
|
// we are assuming it can only be a 'bd','cd'. can also be 'pi','so' or 'no'
|
|
if let Some( col ) = dict_get( color_dict, "bd" ) {
|
|
return Some( col.to_string() );
|
|
}
|
|
None
|
|
}
|
|
|
|
fn print_usage( program: &str, opts: &Options ) {
|
|
let brief = format!( "Usage: {} [options] <path> [<path>..]", program );
|
|
print!( "{}", opts.usage( &brief ) );
|
|
}
|
|
|
|
fn dict_get( dict : &Vec<DictEntry>, key : &str ) -> Option<String> {
|
|
for entry in dict {
|
|
if &entry.key == key {
|
|
return Some( entry.val.clone() );
|
|
}
|
|
}
|
|
None
|
|
}
|
|
|
|
fn create_color_dict() -> Vec<DictEntry> {
|
|
let mut color_dict = Vec::new();
|
|
let env_str = env::var("LS_COLORS").unwrap_or( "".to_string() );
|
|
for entry in env_str.split(':') {
|
|
if entry.len() == 0 { break; }
|
|
|
|
let line = entry.replace("\"","");
|
|
let mut line = line.split('=');
|
|
let key = line.next().unwrap();
|
|
let val = line.next().unwrap();
|
|
|
|
color_dict.push( DictEntry{ key: key.to_string(), val: val.to_string() } );
|
|
}
|
|
color_dict
|
|
}
|
|
|
|
pub fn run( cfg: &Config ) {
|
|
let entry = if cfg.paths.len() == 1 {
|
|
Entry::new( cfg.paths[0].as_path(), &cfg, cfg.depth + 1 )
|
|
} else {
|
|
let mut bytes = 0;
|
|
let mut entries : Vec<Entry> = Vec::new();
|
|
|
|
for path in &cfg.paths {
|
|
let e = Entry::new( path.as_path(), &cfg, cfg.depth + 1 );
|
|
bytes += e.bytes;
|
|
entries.push( e );
|
|
}
|
|
let len = entries.len();
|
|
if len > 0 {
|
|
entries[len-1].last = true;
|
|
}
|
|
Entry {
|
|
name : "<collection>".to_string(),
|
|
bytes,
|
|
color : None,
|
|
last : false,
|
|
entries : Some(entries)
|
|
}
|
|
};
|
|
|
|
entry.print( cfg.bytes_flag, cfg.ascii_flag );
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn parse_ls_colors() {
|
|
let mut dict = Vec::new();
|
|
dict.push( DictEntry{ key: "di".to_string() , val: "dircode".to_string() } );
|
|
dict.push( DictEntry{ key: "li".to_string() , val: "linkcod".to_string() } );
|
|
dict.push( DictEntry{ key: "*.mp3".to_string(), val: "mp3code".to_string() } );
|
|
dict.push( DictEntry{ key: "*.tar".to_string(), val: "tarcode".to_string() } );
|
|
assert_eq!( "dircode", color_from_path( Path::new(".") , &dict ) );
|
|
assert_eq!( "mp3code", color_from_path( Path::new("test.mp3"), &dict ) );
|
|
assert_eq!( "tarcode", color_from_path( Path::new("test.tar"), &dict ) );
|
|
}
|
|
|
|
/*
|
|
#[test]
|
|
fn plot_bar() {
|
|
println!("{}", fmt_bar(100, 100, 40 ) );
|
|
println!("{}", fmt_bar( 90, 100, 40 ) );
|
|
println!("{}", fmt_bar( 40, 100, 40 ) );
|
|
println!("{}", fmt_bar( 30, 100, 40 ) );
|
|
println!("{}", fmt_bar( 20, 100, 40 ) );
|
|
println!("{}", fmt_bar( 10, 100, 40 ) );
|
|
println!("{}", fmt_bar( 0, 100, 40 ) );
|
|
}
|
|
|
|
#[test]
|
|
fn path_flavours() {
|
|
// different paths, like . .. ../x /home/ dir / /usr/etc/../bin
|
|
}
|
|
|
|
#[test]
|
|
fn entry_object() {
|
|
let dir = fs::read_dir(".").unwrap().nth(0).unwrap().unwrap();
|
|
let entry = Entry::new(None, &dir, true, 0, false);
|
|
println!( "entry created {} {}B", entry.name, entry.bytes );
|
|
assert_eq!( ".git", entry.name );
|
|
}
|
|
|
|
#[test]
|
|
fn vector_of_entries() {
|
|
let mut vec : Vec<Entry> = Vec::new();
|
|
let entry = Entry { name: String::from("file1"), bytes: 1, dir: None };
|
|
vec.push( entry );
|
|
let entry = Entry { name: String::from("file2"), bytes: 2, dir: None };
|
|
vec.push( entry );
|
|
vec.sort_unstable_by(|a, b| b.bytes.cmp(&a.bytes));
|
|
assert!( vec[0].bytes == 2 );
|
|
}
|
|
|
|
#[test]
|
|
fn get_bytes_test() {
|
|
println!( "calculated bytes {}",
|
|
get_bytes( Path::new( "." ) ) );
|
|
println!( "calculated bytes {}",
|
|
get_bytes( Path::new( "Cargo.toml" ) ) );
|
|
}
|
|
*/
|
|
}
|
|
|
|
// License
|
|
//
|
|
// This script is free software; you can redistribute it and/or modify it
|
|
// under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This script is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this script; if not, write to the
|
|
// Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|