extern crate solc;

fn main() {
    let input_directory = "./contracts";
    let output_directory = "./contracts";

    // first tries solc
    // then tries solcjs
    // returns error if no compiler available
    solc::compile_dir(&input_directory, &output_directory).unwrap();

    // now `./contracts` contains a `*.bin` and a `*.abi` file
    // for every contract found in `*.sol` file in `./contracts`
}