extern crate flate2;
use std::io::prelude::*;
use flate2::Compression;
use flate2::read::ZlibEncoder;
use std::fs::File;
// Open file and debug print the compressed contents
fn main() {
println!("{:?}", open_hello_world().unwrap());
}
// Opens sample file, compresses the contents and returns a Vector or error
// File implements Read
fn open_hello_world() -> std::io::Result<Vec<u8>> {
let f = File::open("examples/hello_world.txt")?;
let mut z = ZlibEncoder::new(f, Compression::Fast);
let mut buffer = [0;50];
let byte_count = z.read(&mut buffer)?;
Ok(buffer[0..byte_count].to_vec())
}