use structopt::StructOpt;
use failure::ResultExt;
use exitfailure::ExitFailure;
#[derive(StructOpt)]
struct Cli {
pattern: String,
#[structopt(parse(from_os_str))]
path: std::path::PathBuf
}
fn main() -> Result<(), ExitFailure>{
let args = Cli::from_args();
let content = std::fs::read_to_string(&args.path)
.with_context(|_| format!("could not read file `{}`", args.path.display()))?;
grrs_rk::find_matches(&content, &args.pattern, &mut std::io::stdout());
Ok(())
}