protobuf-codegen 2.0.4

Code generator for rust-protobuf. Includes a library and `protoc-gen-rust` binary. See `protoc-rust` and `protobuf-codegen-pure` crates.
Documentation 
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extern crate protobuf;
extern crate protobuf_codegen;

use std::fs::*;
use std::io::Read;
use std::path::Path;

use protobuf::parse_from_reader;
use protobuf::descriptor::*;
use protobuf_codegen::*;


fn write_file(bin: &str) {
    let mut is = File::open(&Path::new(bin)).unwrap();
    let fds = parse_from_reader::<FileDescriptorSet>(&mut is as &mut Read).unwrap();

    let file_names: Vec<String> = fds.get_file()
        .iter()
        .map(|f| f.get_name().to_string())
        .collect();
    gen_and_write(fds.get_file(), &file_names, Path::new("."), &Default::default())
        .expect("gen_and_write");
}

fn main() {
    let args: Vec<String> = std::env::args().collect();
    if args.len() != 2 {
        panic!("must have exactly one argument");
    }
    let ref pb_bin = args[1];
    write_file(&pb_bin);
}