| use flate2::bufread::ZlibEncoder; |
| use flate2::Compression; |
| use std::fs::File; |
| use std::io; |
| use std::io::prelude::*; |
| use std::io::BufReader; |
| |
| // Open file and debug print the contents compressed with zlib |
| fn main() { |
| println!("{:?}", open_hello_world().unwrap()); |
| } |
| |
| // Opens sample file, compresses the contents and returns a Vector or error |
| // File wrapped in a BufReader implements Bufread |
| fn open_hello_world() -> io::Result<Vec<u8>> { |
| let f = File::open("examples/hello_world.txt")?; |
| let b = BufReader::new(f); |
| let mut z = ZlibEncoder::new(b, Compression::fast()); |
| let mut buffer = Vec::new(); |
| z.read_to_end(&mut buffer)?; |
| Ok(buffer) |
| } |
