diff options
Diffstat (limited to 'tokio/src/fs')
-rw-r--r-- | tokio/src/fs/copy.rs | 26 | ||||
-rw-r--r-- | tokio/src/fs/mod.rs | 3 |
2 files changed, 29 insertions, 0 deletions
diff --git a/tokio/src/fs/copy.rs b/tokio/src/fs/copy.rs new file mode 100644 index 00000000..e39924c5 --- /dev/null +++ b/tokio/src/fs/copy.rs @@ -0,0 +1,26 @@ +use crate::fs::File; +use crate::io; +use std::path::Path; + +/// Copies the contents of one file to another. This function will also copy the permission bits of the original file to the destination file. +/// This function will overwrite the contents of to. +/// +/// This is the async equivalent of `std::fs::copy`. +/// +/// # Examples +/// +/// ```no_run +/// use tokio::fs; +/// +/// # async fn dox() -> std::io::Result<()> { +/// fs::copy("foo.txt", "bar.txt").await?; +/// # Ok(()) +/// # } +/// ``` + +pub async fn copy<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> Result<u64, std::io::Error> { + let from = File::open(from).await?; + let to = File::create(to).await?; + let (mut from, mut to) = (io::BufReader::new(from), io::BufWriter::new(to)); + io::copy(&mut from, &mut to).await +} diff --git a/tokio/src/fs/mod.rs b/tokio/src/fs/mod.rs index 266364b9..3eb03764 100644 --- a/tokio/src/fs/mod.rs +++ b/tokio/src/fs/mod.rs @@ -80,6 +80,9 @@ pub use self::symlink_metadata::symlink_metadata; mod write; pub use self::write::write; +mod copy; +pub use self::copy::copy; + use std::io; pub(crate) async fn asyncify<F, T>(f: F) -> io::Result<T> |