https://github.com/chinanf-boy/fs_extra_try
tour-example: fs_extra - Rust { Learn }
https://github.com/chinanf-boy/fs_extra_try
explain try
Last synced: about 1 year ago
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tour-example: fs_extra - Rust { Learn }
- Host: GitHub
- URL: https://github.com/chinanf-boy/fs_extra_try
- Owner: chinanf-boy
- Created: 2018-06-08T13:09:17.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2018-06-10T01:17:54.000Z (almost 8 years ago)
- Last Synced: 2025-02-08T08:47:14.479Z (over 1 year ago)
- Topics: explain, try
- Language: Rust
- Homepage:
- Size: 4.88 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: readme.md
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README
## fs_extra
尝试 `fs_extra` 库 「rust」 示例
---
https://github.com/webdesus/fs_extra
### Example
``` rust
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"); // temp 路径
let path_to = path_from.join("out"); // temp + out 路径
let test_folder = path_from.join("test_folder"); // temp + test_folder 路径
let dir = test_folder.join("dir"); // test_folder + dir 路径
let sub = dir.join("sub");
let file1 = dir.join("file1.txt");
let file2 = sub.join("file2.txt");
create_all(&sub, true)?; // 创建
create_all(&path_to, true)?;
fs_extra::file::write_all(&file1, "content1")?; // 写入
fs_extra::file::write_all(&file2, "content2")?;
assert!(dir.exists()); // 参数如果是错误, 会 抛出错误❌
assert!(sub.exists());
assert!(file1.exists());
assert!(file2.exists());
let mut options = CopyOptions::new(); // 可用于配置文件将如何复制或移动的选项和标志。
options.buffer_size = 1;
let (tx, rx) = mpsc::channel(); // 通道
thread::spawn(move || { // 线程
let handler = |process_info: TransitProcess| {
tx.send(process_info).unwrap(); // 通道发送
thread::sleep(time::Duration::from_millis(2)); // 线程等待
fs_extra::dir::TransitProcessResult::ContinueOrAbort //如果进程没有错误，则继续执行进程，如果进程内容错误则继续进行。
//https://docs.rs/fs_extra/*/fs_extra/dir/enum.TransitProcessResult.html
};
// 分进程-复制, 从 test_folder 到 out 目录 全复制
copy_with_progress(&test_folder, &path_to, &options, handler).unwrap();
// https://docs.rs/fs_extra/*/fs_extra/dir/fn.copy_with_progress.html
});
loop {
match rx.try_recv() { // 通道接收
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().expect("Error handle filess");
}
```