mod sql; mod sync; mod recommend; const _DUMMY_DEPENDENCY: &'static str = include_str!("../../Cargo.toml"); trait Command { fn run(&self) -> failure::Fallible<()>; } pub fn run() -> failure::Fallible<()> { get_command()?.run() } fn get_command() -> failure::Fallible> { let subcommands = vec![ sync::subcommand(), sql::subcommand(), recommend::subcommand(), ]; let matches = app_from_crate!() .subcommands(subcommands.into_iter().map(|s| { s.setting(clap::AppSettings::DisableVersion) })) .get_matches(); let command: Box = match matches.subcommand() { ("sync", Some(matches)) => Box::new(sync::Command::new(matches)), ("sql", Some(matches)) => Box::new(sql::Command::new(matches)), ("recommend", Some(matches)) => Box::new(recommend::Command::new(matches)?), (name, Some(_)) => bail!("unknown subcommand: {}", name), (_, None) => bail!("no subcommand given"), }; Ok(command) }