1use crate::fs::asyncify;
2
3use std::{io, path::Path};
4
5/// Creates a future that will open a file for writing and write the entire
6/// contents of `contents` to it.
7///
8/// This is the async equivalent of [`std::fs::write`][std].
9///
10/// This operation is implemented by running the equivalent blocking operation
11/// on a separate thread pool using [`spawn_blocking`].
12///
13/// [`spawn_blocking`]: crate::task::spawn_blocking
14/// [std]: fn@std::fs::write
15///
16/// # Examples
17///
18/// ```no_run
19/// use tokio::fs;
20///
21/// # async fn dox() -> std::io::Result<()> {
22/// fs::write("foo.txt", b"Hello world!").await?;
23/// # Ok(())
24/// # }
25/// ```
26pub async fn write(path: impl AsRef<Path>, contents: impl AsRef<[u8]>) -> io::Result<()> {
27 let path: PathBuf = path.as_ref().to_owned();
28 let contents: Vec = contents.as_ref().to_owned();
29
30 asyncify(move || std::fs::write(path, contents)).await
31}
32