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use crate::fs::Metadata;
use crate::io;
use crate::path::Path;
use crate::task::spawn_blocking;

/// Reads metadata for a path without following symbolic links.

///

/// If you want to follow symbolic links before reading metadata of the target file or directory,

/// use [`metadata`] instead.

///

/// This function is an async version of [`std::fs::symlink_metadata`].

///

/// [`metadata`]: fn.metadata.html

/// [`std::fs::symlink_metadata`]: https://doc.rust-lang.org/std/fs/fn.symlink_metadata.html

///

/// # Errors

///

/// An error will be returned in the following situations:

///

/// * `path` does not point to an existing file or directory.

/// * The current process lacks permissions to read metadata for the path.

/// * Some other I/O error occurred.

///

/// # Examples

///

/// ```no_run

/// # fn main() -> std::io::Result<()> { async_std::task::block_on(async {

/// #

/// use async_std::fs;

///

/// let perm = fs::symlink_metadata("a.txt").await?.permissions();

/// #

/// # Ok(()) }) }

/// ```

pub async fn symlink_metadata<P: AsRef<Path>>(path: P) -> io::Result<Metadata> {
    let path = path.as_ref().to_owned();
    spawn_blocking(move || std::fs::symlink_metadata(path)).await
}