ndless 0.8.8

Rust library for interacting with Ndless for the TI-Nspire
Documentation 
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#![allow(dead_code)] // not used on all platforms

use crate::fs;
use crate::io::{self, Error, ErrorKind};
use crate::path::Path;

pub fn copy(from: &Path, to: &Path) -> io::Result<u64> {
	if !from.is_file() {
		return Err(Error::new(
			ErrorKind::InvalidInput,
			"the source path is not an existing regular file",
		));
	}

	let mut reader = fs::File::open(from)?;
	let mut writer = fs::File::create(to)?;

	let ret = io::copy(&mut reader, &mut writer)?;
	Ok(ret)
}

pub fn remove_dir_all(path: &Path) -> io::Result<()> {
	remove_dir_all_recursive(path)
}

fn remove_dir_all_recursive(path: &Path) -> io::Result<()> {
	for child in fs::read_dir(path)? {
		let child = child?;
		if child.file_type()?.is_dir() {
			remove_dir_all_recursive(&child.path())?;
		} else {
			fs::remove_file(&child.path())?;
		}
	}
	fs::remove_dir(path)
}