lsv 0.1.15

Three‑pane terminal file viewer (TUI) with preview and Lua configuration
Documentation 
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use std::{
    io,
    path::Path,
};

/// Recursively copy a file or directory tree from `src` to `dst`.
pub fn copy_path_recursive(
    src: &Path,
    dst: &Path,
) -> io::Result<()>
{
    let meta = std::fs::metadata(src)?;
    if meta.is_dir()
    {
        std::fs::create_dir_all(dst)?;
        for entry in std::fs::read_dir(src)?
        {
            let de = entry?;
            let p = de.path();
            let name = de.file_name();
            let target = dst.join(name);
            copy_path_recursive(&p, &target)?;
        }
        Ok(())
    }
    else
    {
        std::fs::copy(src, dst).map(|_| ())
    }
}

/// Move a path via rename, falling back to copy+remove on cross-device moves.
pub fn move_path_with_fallback(
    src: &Path,
    dst: &Path,
) -> io::Result<()>
{
    match std::fs::rename(src, dst)
    {
        Ok(()) => Ok(()),
        Err(_e) =>
        {
            copy_path_recursive(src, dst)?;
            let meta = std::fs::metadata(src)?;
            if meta.is_dir()
            {
                std::fs::remove_dir_all(src)
            }
            else
            {
                std::fs::remove_file(src)
            }
        }
    }
}

/// Remove a path (file or directory recursively).
pub fn remove_path_all(path: &Path) -> io::Result<()>
{
    if path.is_dir()
    {
        std::fs::remove_dir_all(path)
    }
    else
    {
        std::fs::remove_file(path)
    }
}