gmail-count.rs

use std::error::Error;
use std::fs;

use argparse::{ArgumentParser, Store};

fn main() -> Result<(), Box<Error>> {
    let mut mailbox_name = String::new();
    {
        let mut parser = ArgumentParser::new();
        parser.refer(&mut mailbox_name)
            .add_argument("label", Store, "");
        parser.parse_args_or_exit();
    }

    let domain = "imap.gmail.com";
    let username = fs::read_to_string("username")?;
    let password = fs::read_to_string("password")?;

    let tls = native_tls::TlsConnector::new()?;
    let client = imap::connect((domain, 993), domain, &tls)?;
    let mut session = client.login(username, password)
        .map_err(|(error, _)| error)?;
    let mailbox = session.select(&mailbox_name)?;
    println!("{}: {}", mailbox_name, mailbox.exists);
    Ok(())
}