extern crate ar;
use std::env;
use std::fs::File;
use std::io;
use std::path::Path;
use std::str;
fn main() {
let num_args = env::args().count();
if num_args != 2 {
println!("Usage: extract <path/to/archive.a>");
return;
}
let input_path = env::args().nth(1).unwrap();
let input_path = Path::new(&input_path);
let input_file =
File::open(input_path).expect("failed to open input file");
let mut archive = ar::Archive::new(input_file);
while let Some(entry) = archive.next_entry() {
let mut entry = entry.expect("failed to parse archive entry");
let output_path =
Path::new(str::from_utf8(entry.header().identifier()).expect(
"Non UTF-8 filename",
)).to_path_buf();
let mut output_file = File::create(&output_path).expect(&format!(
"unable to create file {:?}",
output_path
));
io::copy(&mut entry, &mut output_file).expect(&format!(
"failed to extract file {:?}",
output_path
));
}
}