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Humanize filesize output

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This commit is contained in:
Kevin Liu 2016-10-23 17:42:16 -07:00
parent c5d84b9777
commit e0d48f5aca
2 changed files with 21 additions and 8 deletions
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19
src/main.rs
View file

@ -171,13 +171,15 @@ Send files to the graveyard (/tmp/.graveyard) instead of unlinking them.")
if matches.is_present("inspect") {
if metadata.is_dir() {
// Get the size of the directory and all its contents
println!("{}: directory, {} bytes including:", target,
WalkDir::new(source)
.into_iter()
.filter_map(|x| x.ok())
.filter_map(|x| x.metadata().ok())
.map(|x| x.len())
.sum::<u64>());
println!("{}: directory, {} including:", target,
humanize_bytes(
WalkDir::new(source)
.into_iter()
.filter_map(|x| x.ok())
.filter_map(|x| x.metadata().ok())
.map(|x| x.len())
.sum::<u64>()));
// Print the first few top-level files in the directory
for entry in WalkDir::new(source)
.min_depth(1).max_depth(1).into_iter()
@ -185,7 +187,8 @@ Send files to the graveyard (/tmp/.graveyard) instead of unlinking them.")
println!("{}", entry.unwrap().path().display());
}
} else {
println!("{}: file, {} bytes", target, metadata.len());
println!("{}: file, {}", target,
humanize_bytes(metadata.len()));
// Read the file and print the first few lines
if let Ok(f) = fs::File::open(source) {
for line in BufReader::new(f)

10
src/util.rs
View file

@ -29,3 +29,13 @@ fn rename_grave<G: AsRef<Path>>(grave: G) -> PathBuf {
.next()
.expect("Failed to rename duplicate file or directory")
}
fn humanize_bytes(bytes: u64) -> String {
let values = ["bytes", "KB", "MB", "GB", "TB"];
let pair = values.iter()
.enumerate()
.take_while(|x| bytes as usize / (1000 as usize).pow(x.0 as u32) > 10)
.last()
.unwrap();
format!("{} {}", bytes as usize / (1000 as usize).pow(pair.0 as u32), pair.1)
}