9 stable releases
2.76.0 |
|
---|---|
2.8.0 | Oct 26, 2024 |
2.7.1 | Apr 17, 2024 |
2.5.0 | Mar 22, 2024 |
2.4.1 | Feb 10, 2024 |
#196 in Filesystem
Used in scandir_rs
74KB
2K
SLoC
scandir
The Rust crate is called scandir
and installable via cargo
. On Linux it is 1.5 - 2.9 times faster and on Windows 1.5 - 5.4 time faster (see benchmarks).
If you are just interested in directory statistics you can use the Count
.
scandir_rs
contains following classes:
Count
for determining statistics of a directory.Walk
for getting names of directory entries.Scandir
for getting detailed stats of directory entries.
For the API see:
Examples
Collect
examples:
use scandir::Count;
// collect() starts the worker thread and waits until it has finished. The line below is blocking.
println!(Count::new("/usr")?.collect()?);
// Get extended statistics
println!(Count::new("/usr", return_type=ReturnType.Ext)?.collect()?);
The same, but asynchronously in background using a class instance:
use scandir::Count;
let mut instance = Count::new("/usr", return_type=ReturnType.Ext);
instance.start(); // Start scanning the directory
...
let values = instance.results(); // Returns the current statistics. Can be read at any time
...
if instance.busy() { // Check if the task is still running.
...
instance.stop(); // If you want to cancel the task
...
instance.join(); // Wait for the instance to finish.
let mut instance = Count::new(&path)?;
instance.start()?;
loop {
if !instance.busy() {
break;
}
// Do something
thread::sleep(Duration::from_millis(10));
}
// collect() immediately returns because the worker thread has already finished.
let statistics = instance.collect()?;
Walk
example:
use scandir::Walk;
// Get basic file tree
println!(Walk::new("/usr")?.collect()?);
// Get file tree with extended file type identification. This is slower.
println!(Walk::new("/usr", return_type=ReturnType.Ext)?.collect()?);
If you want to have intermediate results, e.g. you want to show the progress to the user, the use the example below.
let mut instance = Walk::new(&path, None)?;
instance.start()?;
loop {
if !instance.busy() {
break;
}
let new_results = instance.results(true);
// Do something
thread::sleep(Duration::from_millis(10));
}
// collect() immediately returns because the worker thread has already finished.
let results = instance.collect()?;
Scandir
example:
use scandir::Scandir;
// Get basic file metadata
println!(Scandir::new("/usr")?.collect()?);
// Get extended file metadata
println!(Scandir::new("/usr", return_type=ReturnType.Ext, None)?.collect()?);
If you want to have intermediate results, e.g. you want to show the progress to the user, the use the example below.
let mut instance = Scandir::new(&path, None)?;
instance.start()?;
loop {
if !instance.busy() {
break;
}
let new_results = instance.results(true);
// Do something
thread::sleep(Duration::from_millis(10));
}
// collect() immediately returns because the worker thread has already finished.
let results = instance.collect()?;
Dependencies
~2.3–3.5MB
~72K SLoC