rtd 0.3.3

Manage your todo in command line
Documentation 
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extern crate clap;

use clap::{crate_name, crate_version, App, Arg, ArgMatches, SubCommand};
use std::process::exit;

use rtd::command::{Add, Command, Delete, Done, Edit, List, Today};
use rtd::db::migration;

fn main() {
    migration::migrate().unwrap();

    let opts = App::new(crate_name!())
        .version(crate_version!())
        .about("Manage todos in command line")
        .subcommand(
            SubCommand::with_name("list")
                .about("Lists todos")
                .arg(
                    Arg::with_name("name")
                        .required(false)
                        .index(1)
                        .help("Show todo from specified list")
                        .takes_value(true)
                        .multiple(false),
                )
                .arg(
                    Arg::with_name("all")
                        .short("a")
                        .long("all")
                        .help("Show todos in all lists including completed")
                        .conflicts_with("done")
                        .takes_value(false),
                )
                .arg(
                    Arg::with_name("done")
                        .short("d")
                        .long("done")
                        .conflicts_with("all")
                        .help("Show completed tasks only from all lists")
                        .takes_value(false),
                ),
        )
        .subcommand(
            SubCommand::with_name("add")
                .about("Add a new task")
                .arg(
                    Arg::with_name("INPUT")
                        .help("<todo-title> :<list> +<priority> @<due-date>")
                        .required(true)
                        .index(1)
                        .takes_value(true)
                        .multiple(true),
                )
                .arg(
                    Arg::with_name("today")
                        .short("t")
                        .long("today")
                        .help("Mark task as today's priority")
                        .takes_value(false),
                ),
        )
        .subcommand(
            SubCommand::with_name("edit").about("Edit a todo").arg(
                Arg::with_name("INPUT")
                    .help("<todo-title> :<list> +priority")
                    .required(true)
                    .index(1)
                    .takes_value(true)
                    .multiple(true),
            ),
        )
        .subcommand(
            SubCommand::with_name("done")
                .about("Mark task as completed/un-completed")
                .arg(
                    Arg::with_name("INPUT")
                        .help("<task-id>")
                        .required(true)
                        .takes_value(true)
                        .multiple(true),
                )
                .arg(
                    Arg::with_name("unset")
                        .short("u")
                        .long("unset")
                        .help("Mark task as not completed")
                        .takes_value(false),
                ),
        )
        .subcommand(
            SubCommand::with_name("today")
                .about("Mark/un-mark task as today's priority")
                .arg(
                    Arg::with_name("INPUT")
                        .help("<task-id>")
                        .allow_hyphen_values(true)
                        .required(true)
                        .takes_value(true)
                        .multiple(true),
                )
                .arg(
                    Arg::with_name("unset")
                        .short("u")
                        .long("unset")
                        .help("Remove from today's priority")
                        .takes_value(false),
                ),
        )
        .subcommand(
            SubCommand::with_name("delete").about("Delete a task").arg(
                Arg::with_name("INPUT")
                    .help("<task-id>")
                    .required(true)
                    .takes_value(true)
                    .multiple(true),
            ),
        )
        .get_matches();

    match run(&opts) {
        Ok(_) => exit(0),
        Err(error) => {
            eprintln!("{}", error);
            exit(1);
        }
    }
}

fn run(opts: &ArgMatches) -> Result<(), String> {
    match opts.subcommand() {
        ("add", Some(add_opts)) => Add::new(add_opts).run(),
        ("delete", Some(delete_opts)) => Delete::new(delete_opts).run(),
        ("edit", Some(edit_opts)) => Edit::new(edit_opts).run(),
        ("list", Some(list_opts)) => List::new(list_opts).run(),
        ("done", Some(done_opts)) => Done::new(done_opts).run(),
        ("today", Some(today_opts)) => Today::new(today_opts).run(),
        (_, _) => Err("Unknown command, for usage see 'rtd --help'".to_string()),
    }
}