Awesome

fs_extra

A Rust library that provides additional functionality not present in std::fs.

Key features:

Copy files (optionally with information about the progress).
Copy directories recursively (optionally with information about the progress).
Move files (optionally with information about the progress).
Move directories recursively (optionally with information about the progress).
A single method for create and write String content in file.
A single method for open and read String content from file.
Get folder size
Get collection of directory entries

Functions:

Function	Description
fs_extra::copy_items	Recursively copies files and directories from one location to another
fs_extra::copy_items_with_progress	Recursively copies files and directories from one location to another with information about progress
fs_extra::move_items	Recursively moves files and directories from one location to another
fs_extra::move_items_with_progress	Recursively moves files and directories from one location to another with information about progress
fs_extra::remove_items	Removes files or directories
fs_extra::file::copy	Copies the contents of one file to another
fs_extra::file::copy_with_progress	Copies the contents of one file to another with information about progress
fs_extra::file::move_file	Moves a file from one location to another
fs_extra::file::move_file_with_progress	Moves a file from one location to another with information about progress
fs_extra::file::remove	Removes a file
fs_extra::file::read_to_string	Reads file content into a `String`
fs_extra::file::write_all	Writes `String` content to a file
fs_extra::dir::create	Creates a new, empty directory at the given path
fs_extra::dir::create_all	Recursively creates a directory and all of its parent components if they are missing
fs_extra::dir::copy	Recursively copies the directory contents from one location to another
fs_extra::dir::copy_with_progress	Recursively copies the directory contents from one location to another with information about progress
fs_extra::dir::move_dir	Moves directory contents from one location to another
fs_extra::dir::move_dir_with_progress	Moves directory contents from one location to another with information about progress
fs_extra::dir::remove	Removes directory
fs_extra::dir::get_size	Returns the size of the file or directory
fs_extra::dir::get_dir_content	Gets details such as the size and child items of a directory
fs_extra::dir::get_dir_content2	Gets details such as the size and child items of a directory using specified settings
fs_extra::dir::get_details_entry	Gets attributes of a directory entry
fs_extra::dir::ls	Gets attributes of directory entries in a directory

Usage

Add this to your Cargo.toml:

[dependencies]
fs_extra = "1.3.0"

Examples

The following example shows how to copy a directory recursively and display progress. First a source directory ./temp/dir containing file test1.txt and a subdirectory sub is createad with sub itself having a file test2.txt. ./temp/dir and all contents are then copied out to ./out/dir.

use std::path::Path;
use std::{thread, time};
use std::sync::mpsc::{self, TryRecvError};

extern crate fs_extra;
use fs_extra::dir::*;
use fs_extra::error::*;

fn example_copy() -> Result<()> {

    let path_from = Path::new("./temp");
    let path_to = path_from.join("out");
    let test_folder = path_from.join("test_folder");
    let dir = test_folder.join("dir");
    let sub = dir.join("sub");
    let file1 = dir.join("file1.txt");
    let file2 = sub.join("file2.txt");

    create_all(&sub, true)?;
    create_all(&path_to, true)?;
    fs_extra::file::write_all(&file1, "content1")?;
    fs_extra::file::write_all(&file2, "content2")?;

    assert!(dir.exists());
    assert!(sub.exists());
    assert!(file1.exists());
    assert!(file2.exists());


    let mut options = CopyOptions::new();
    options.buffer_size = 1;
    let (tx, rx) = mpsc::channel();
    thread::spawn(move || {
        let handler = |process_info: TransitProcess| {
            tx.send(process_info).unwrap();
            thread::sleep(time::Duration::from_millis(500));
            fs_extra::dir::TransitProcessResult::ContinueOrAbort
        };
        copy_with_progress(&test_folder, &path_to, &options, handler).unwrap();
    });

    loop {
        match rx.try_recv() {
            Ok(process_info) => {
                println!("{} of {} bytes",
                         process_info.copied_bytes,
                         process_info.total_bytes);
            }
            Err(TryRecvError::Disconnected) => {
                println!("finished");
                break;
            }
            Err(TryRecvError::Empty) => {}
        }
    }
    Ok(())

}
fn main() {
    example_copy();
}