mirror of
https://github.com/uutils/coreutils
synced 2024-07-22 10:24:54 +00:00
Merge branch 'add-du' of https://github.com/derekchiang/coreutils into add-du
Conflicts: README.md
This commit is contained in:
Arcterus
commit
cca19911ad
1
Makefile
1
Makefile
|
|
@ -14,6 +14,7 @@ PROGS := \
|
|||
dirname \
|
||||
echo \
|
||||
env \
|
||||
du \
|
||||
false \
|
||||
mkdir \
|
||||
printenv \
|
||||
|
|
|
|||
|
|
@ -86,7 +86,6 @@ To do
|
|||
- dd
|
||||
- df
|
||||
- dircolors
|
||||
- du
|
||||
- expand
|
||||
- expr
|
||||
- extent-scan
|
||||
|
|
|
|||
353
du/du.rs
Normal file
353
du/du.rs
Normal file
|
|
@ -0,0 +1,353 @@
|
|||
#[link(name="du", vers="1.0.0", author="Derek Chiang")];
|
||||
|
||||
/*
|
||||
* This file is part of the uutils coreutils package.
|
||||
*
|
||||
* (c) Derek Chiang <derekchiang93@gmail.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
extern mod extra;
|
||||
|
||||
use std::os;
|
||||
use std::io::stderr;
|
||||
use std::io::fs;
|
||||
use std::io::FileStat;
|
||||
use std::option::Option;
|
||||
use std::path::Path;
|
||||
use extra::arc::Arc;
|
||||
use extra::future::Future;
|
||||
use extra::getopts::groups;
|
||||
use extra::time::Timespec;
|
||||
|
||||
static VERSION: &'static str = "1.0.0";
|
||||
|
||||
struct Options {
|
||||
all: bool,
|
||||
max_depth: Option<uint>,
|
||||
total: bool,
|
||||
separate_dirs: bool,
|
||||
}
|
||||
|
||||
fn du(path: &Path, options_arc: Arc<Options>, depth: uint) -> ~[Arc<FileStat>] {
|
||||
let mut stats = ~[];
|
||||
let mut futures = ~[];
|
||||
let options = options_arc.get();
|
||||
let mut my_stat = path.stat();
|
||||
|
||||
for f in fs::readdir(path).move_iter() {
|
||||
match f.is_file() {
|
||||
true => {
|
||||
let stat = f.stat();
|
||||
my_stat.size += stat.size;
|
||||
my_stat.unstable.blocks += stat.unstable.blocks;
|
||||
if options.all {
|
||||
stats.push(Arc::new(stat))
|
||||
}
|
||||
}
|
||||
false => {
|
||||
let oa_clone = options_arc.clone();
|
||||
futures.push(do Future::spawn { du(&f, oa_clone, depth + 1) })
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for future in futures.mut_iter() {
|
||||
for stat_arc in future.get().move_rev_iter() {
|
||||
let stat = stat_arc.get();
|
||||
if !options.separate_dirs && stat.path.dir_path() == my_stat.path {
|
||||
my_stat.size += stat.size;
|
||||
my_stat.unstable.blocks += stat.unstable.blocks;
|
||||
}
|
||||
if options.max_depth == None || depth < options.max_depth.unwrap() {
|
||||
stats.push(stat_arc.clone());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
stats.push(Arc::new(my_stat));
|
||||
|
||||
return stats;
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let args = os::args();
|
||||
let program = args[0].clone();
|
||||
let opts = ~[
|
||||
// In task
|
||||
groups::optflag("a", "all", " write counts for all files, not just directories"),
|
||||
// In main
|
||||
groups::optflag("", "apparent-size", "print apparent sizes, rather than disk usage;
|
||||
although the apparent size is usually smaller, it may be larger due to holes
|
||||
in ('sparse') files, internal fragmentation, indirect blocks, and the like"),
|
||||
// In main
|
||||
groups::optopt("B", "block-size", "scale sizes by SIZE before printing them.
|
||||
E.g., '-BM' prints sizes in units of 1,048,576 bytes. See SIZE format below.",
|
||||
"SIZE"),
|
||||
// In main
|
||||
groups::optflag("b", "bytes", "equivalent to '--apparent-size --block-size=1'"),
|
||||
// In main
|
||||
groups::optflag("c", "total", "produce a grand total"),
|
||||
// In task
|
||||
// groups::optflag("D", "dereference-args", "dereference only symlinks that are listed
|
||||
// on the command line"),
|
||||
// In main
|
||||
// groups::optopt("", "files0-from", "summarize disk usage of the NUL-terminated file
|
||||
// names specified in file F;
|
||||
// If F is - then read names from standard input", "F"),
|
||||
// // In task
|
||||
// groups::optflag("H", "", "equivalent to --dereference-args (-D)"),
|
||||
// In main
|
||||
groups::optflag("h", "human-readable", "print sizes in human readable format (e.g., 1K 234M 2G)"),
|
||||
// In main
|
||||
groups::optflag("", "si", "like -h, but use powers of 1000 not 1024"),
|
||||
// In main
|
||||
groups::optflag("k", "", "like --block-size=1K"),
|
||||
// In task
|
||||
groups::optflag("l", "count-links", "count sizes many times if hard linked"),
|
||||
// // In main
|
||||
groups::optflag("m", "", "like --block-size=1M"),
|
||||
// // In task
|
||||
// groups::optflag("L", "dereference", "dereference all symbolic links"),
|
||||
// // In task
|
||||
// groups::optflag("P", "no-dereference", "don't follow any symbolic links (this is the default)"),
|
||||
// // In main
|
||||
groups::optflag("0", "null", "end each output line with 0 byte rather than newline"),
|
||||
// In main
|
||||
groups::optflag("S", "separate-dirs", "do not include size of subdirectories"),
|
||||
// In main
|
||||
groups::optflag("s", "summarize", "display only a total for each argument"),
|
||||
// // In task
|
||||
// groups::optflag("x", "one-file-system", "skip directories on different file systems"),
|
||||
// // In task
|
||||
// groups::optopt("X", "exclude-from", "exclude files that match any pattern in FILE", "FILE"),
|
||||
// // In task
|
||||
// groups::optopt("", "exclude", "exclude files that match PATTERN", "PATTERN"),
|
||||
// In main
|
||||
groups::optopt("d", "max-depth", "print the total for a directory (or file, with --all)
|
||||
only if it is N or fewer levels below the command
|
||||
line argument; --max-depth=0 is the same as --summarize", "N"),
|
||||
// In main
|
||||
groups::optflagopt("", "time", "show time of the last modification of any file in the
|
||||
directory, or any of its subdirectories. If WORD is given, show time as WORD instead of modification time:
|
||||
atime, access, use, ctime or status", "WORD"),
|
||||
// In main
|
||||
groups::optopt("", "time-style", "show times using style STYLE:
|
||||
full-iso, long-iso, iso, +FORMAT FORMAT is interpreted like 'date'", "STYLE"),
|
||||
groups::optflag("", "help", "display this help and exit"),
|
||||
groups::optflag("", "version", "output version information and exit"),
|
||||
];
|
||||
|
||||
let matches = match groups::getopts(args.tail(), opts) {
|
||||
Ok(m) => m,
|
||||
Err(f) => {
|
||||
writeln!(&mut stderr() as &mut Writer,
|
||||
"Invalid options\n{}", f.to_err_msg());
|
||||
os::set_exit_status(1);
|
||||
return
|
||||
}
|
||||
};
|
||||
|
||||
if matches.opt_present("help") {
|
||||
println("du " + VERSION + " - estimate file space usage");
|
||||
println("");
|
||||
println("Usage:");
|
||||
println!(" {0:s} [OPTION]... [FILE]...", program);
|
||||
println!(" {0:s} [OPTION]... --files0-from=F", program);
|
||||
println("");
|
||||
println(groups::usage("Summarize disk usage of each FILE, recursively for directories.", opts));
|
||||
println("Display values are in units of the first available SIZE from
|
||||
--block-size, and the DU_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environ‐
|
||||
ment variables. Otherwise, units default to 1024 bytes (or 512 if
|
||||
POSIXLY_CORRECT is set).
|
||||
|
||||
SIZE is an integer and optional unit (example: 10M is 10*1024*1024).
|
||||
Units are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ... (pow‐
|
||||
ers of 1000).");
|
||||
return
|
||||
}
|
||||
|
||||
let options = Options{
|
||||
all: matches.opt_present("all"),
|
||||
max_depth: match (matches.opt_present("summarize"), matches.opt_str("max-depth")) {
|
||||
(true, Some(s)) => match from_str::<uint>(s) {
|
||||
Some(_) => {
|
||||
println!("du: warning: summarizing conflicts with --max-depth={:s}", s);
|
||||
return
|
||||
},
|
||||
None => {
|
||||
println!("du: invalid maximum depth '{:s}'", s);
|
||||
return
|
||||
}
|
||||
},
|
||||
(true, None) => Some(0),
|
||||
(false, Some(s)) => match from_str::<uint>(s) {
|
||||
Some(u) => Some(u),
|
||||
None => {
|
||||
println!("du: invalid maximum depth '{:s}'", s);
|
||||
return
|
||||
}
|
||||
},
|
||||
(false, None) => None
|
||||
},
|
||||
total: matches.opt_present("total"),
|
||||
separate_dirs: matches.opt_present("S"),
|
||||
};
|
||||
|
||||
let strs = matches.free.clone();
|
||||
let strs = match strs.is_empty() {
|
||||
true => ~[~"./"],
|
||||
false => strs
|
||||
};
|
||||
|
||||
let options_arc = Arc::new(options);
|
||||
|
||||
let MB = match matches.opt_present("si") {
|
||||
true => 1000 * 1000,
|
||||
false => 1024 * 1024,
|
||||
};
|
||||
let KB = match matches.opt_present("si") {
|
||||
true => 1000,
|
||||
false => 1024,
|
||||
};
|
||||
|
||||
let block_size = match matches.opt_str("block-size") {
|
||||
Some(s) => {
|
||||
let mut found_number = false;
|
||||
let mut found_letter = false;
|
||||
let mut numbers = ~[];
|
||||
let mut letters = ~[];
|
||||
for c in s.chars() {
|
||||
if found_letter && c.is_digit() || !found_number && !c.is_digit() {
|
||||
println!("du: invalid --block-size argument '{}'", s);
|
||||
return
|
||||
} else if c.is_digit() {
|
||||
found_number = true;
|
||||
numbers.push(c as u8);
|
||||
} else if c.is_alphabetic() {
|
||||
found_letter = true;
|
||||
letters.push(c);
|
||||
}
|
||||
}
|
||||
let number = std::uint::parse_bytes(numbers, 10).unwrap();
|
||||
let multiple = match std::str::from_chars(letters).as_slice() {
|
||||
"K" => 1024, "M" => 1024 * 1024, "G" => 1024 * 1024 * 1024,
|
||||
"T" => 1024 * 1024 * 1024 * 1024, "P" => 1024 * 1024 * 1024 * 1024 * 1024,
|
||||
"E" => 1024 * 1024 * 1024 * 1024 * 1024 * 1024,
|
||||
"Z" => 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024,
|
||||
"Y" => 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024,
|
||||
"KB" => 1000, "MB" => 1000 * 1000, "GB" => 1000 * 1000 * 1000,
|
||||
"TB" => 1000 * 1000 * 1000 * 1000, "PB" => 1000 * 1000 * 1000 * 1000 * 1000,
|
||||
"EB" => 1000 * 1000 * 1000 * 1000 * 1000 * 1000,
|
||||
"ZB" => 1000 * 1000 * 1000 * 1000 * 1000 * 1000 * 1000,
|
||||
"YB" => 1000 * 1000 * 1000 * 1000 * 1000 * 1000 * 1000 * 1000,
|
||||
_ => {
|
||||
println!("du: invalid --block-size argument '{}'", s); return
|
||||
}
|
||||
};
|
||||
number * multiple
|
||||
},
|
||||
None => 1024
|
||||
};
|
||||
|
||||
let convert_size = |size: u64| -> ~str {
|
||||
if matches.opt_present("human-readable") || matches.opt_present("si") {
|
||||
if size > MB {
|
||||
format!("{:.1f}M", (size as f64) / (MB as f64))
|
||||
} else if size > KB {
|
||||
format!("{:.1f}K", (size as f64) / (KB as f64))
|
||||
} else {
|
||||
format!("{}B", size)
|
||||
}
|
||||
} else if matches.opt_present("k") {
|
||||
format!("{}", ((size as f64) / (KB as f64)).ceil())
|
||||
} else if matches.opt_present("m") {
|
||||
format!("{}", ((size as f64) / (MB as f64)).ceil())
|
||||
} else {
|
||||
format!("{}", ((size as f64) / (block_size as f64)).ceil())
|
||||
}
|
||||
};
|
||||
|
||||
let time_format_str = match matches.opt_str("time-style") {
|
||||
Some(s) => {
|
||||
match s.as_slice() {
|
||||
"full-iso" => "%Y-%m-%d %H:%M:%S.%f %z",
|
||||
"long-iso" => "%Y-%m-%d %H:%M",
|
||||
"iso" => "%Y-%m-%d",
|
||||
_ => {
|
||||
println("
|
||||
du: invalid argument 'awdwa' for 'time style'
|
||||
Valid arguments are:
|
||||
- 'full-iso'
|
||||
- 'long-iso'
|
||||
- 'iso'
|
||||
Try 'du --help' for more information.");
|
||||
return
|
||||
}
|
||||
}
|
||||
},
|
||||
None => "%Y-%m-%d %H:%M"
|
||||
};
|
||||
|
||||
let line_separator = match matches.opt_present("0") {
|
||||
true => "\0",
|
||||
false => "\n",
|
||||
};
|
||||
|
||||
let mut grand_total = 0;
|
||||
for path_str in strs.iter() {
|
||||
let path = Path::new(path_str.clone());
|
||||
let iter = du(&path, options_arc.clone(), 0).move_iter();
|
||||
let (_, len) = iter.size_hint();
|
||||
let len = len.unwrap();
|
||||
for (index, stat_arc) in iter.enumerate() {
|
||||
let stat = stat_arc.get();
|
||||
let size = match matches.opt_present("apparent-size") {
|
||||
true => stat.unstable.nlink * stat.size,
|
||||
// C's stat is such that each block is assume to be 512 bytes
|
||||
// See: http://linux.die.net/man/2/stat
|
||||
false => stat.unstable.blocks * 512,
|
||||
};
|
||||
if matches.opt_present("time") {
|
||||
let time_str = {
|
||||
let (secs, nsecs) = {
|
||||
let time = match matches.opt_str("time") {
|
||||
Some(s) => match s.as_slice() {
|
||||
"accessed" => stat.accessed,
|
||||
"created" => stat.created,
|
||||
"modified" => stat.modified,
|
||||
_ => {
|
||||
println("du: invalid argument 'modified' for '--time'
|
||||
Valid arguments are:
|
||||
- 'accessed', 'created', 'modified'
|
||||
Try 'du --help' for more information.");
|
||||
return
|
||||
}
|
||||
},
|
||||
None => stat.modified
|
||||
};
|
||||
((time / 1000) as i64, (time % 1000 * 1000000) as i32)
|
||||
};
|
||||
let time_spec = Timespec::new(secs, nsecs);
|
||||
extra::time::at(time_spec).strftime(time_format_str)
|
||||
};
|
||||
print!("{:<10} {:<30} {}", convert_size(size), time_str, stat.path.display());
|
||||
} else {
|
||||
print!("{:<10} {}", convert_size(size), stat.path.display());
|
||||
}
|
||||
print(line_separator);
|
||||
if options.total && index == (len - 1) {
|
||||
// The last element will be the total size of the the path under
|
||||
// path_str. We add it to the grand total.
|
||||
grand_total += size;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if options.total {
|
||||
print!("{:<10} total", convert_size(grand_total));
|
||||
print(line_separator);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue