comparison rust/rhg/src/main.rs @ 45542:33ded2d3f4fc

rhg: add a limited `rhg cat -r` subcommand

It only supports revision specification (rev or full hash) and the list of files
to cat.

Differential Revision: https://phab.mercurial-scm.org/D9052

45541:522ec3dc44b9

                        .long("--revision")
                        .value_name("REV")
                        .takes_value(true),
                )
                .about(commands::files::HELP_TEXT),
        )
        .subcommand(
            SubCommand::with_name("debugdata")
                .about(commands::debugdata::HELP_TEXT)
                .arg(

    match matches.subcommand() {
        ("root", _) => commands::root::RootCommand::new().run(&ui),
        ("files", Some(matches)) => {
            commands::files::FilesCommand::try_from(matches)?.run(&ui)
        }
        ("debugdata", Some(matches)) => {
            commands::debugdata::DebugDataCommand::try_from(matches)?.run(&ui)
        }
        _ => unreachable!(), // Because of AppSettings::SubcommandRequired,
    }

    type Error = CommandError;

    fn try_from(args: &'a ArgMatches) -> Result<Self, Self::Error> {
        let rev = args.value_of("rev");
        Ok(commands::files::FilesCommand::new(rev))
    }
}

impl<'a> TryFrom<&'a ArgMatches<'_>>
    for commands::debugdata::DebugDataCommand<'a>

45542:33ded2d3f4fc

                        .long("--revision")
                        .value_name("REV")
                        .takes_value(true),
                )
                .about(commands::files::HELP_TEXT),
        )
        .subcommand(
            SubCommand::with_name("cat")
                .arg(
                    Arg::with_name("rev")
                        .help("search the repository as it is in REV")
                        .short("-r")
                        .long("--revision")
                        .value_name("REV")
                        .takes_value(true),
                )
                .arg(
                    clap::Arg::with_name("files")
                        .required(true)
                        .multiple(true)
                        .empty_values(false)
                        .value_name("FILE")
                        .help("Activity to start: activity@category"),
                )
                .about(commands::cat::HELP_TEXT),
        )
        .subcommand(
            SubCommand::with_name("debugdata")
                .about(commands::debugdata::HELP_TEXT)
                .arg(

    match matches.subcommand() {
        ("root", _) => commands::root::RootCommand::new().run(&ui),
        ("files", Some(matches)) => {
            commands::files::FilesCommand::try_from(matches)?.run(&ui)
        }
        ("cat", Some(matches)) => {
            commands::cat::CatCommand::try_from(matches)?.run(&ui)
        }
        ("debugdata", Some(matches)) => {
            commands::debugdata::DebugDataCommand::try_from(matches)?.run(&ui)
        }
        _ => unreachable!(), // Because of AppSettings::SubcommandRequired,
    }

    type Error = CommandError;

    fn try_from(args: &'a ArgMatches) -> Result<Self, Self::Error> {
        let rev = args.value_of("rev");
        Ok(commands::files::FilesCommand::new(rev))
    }
}

impl<'a> TryFrom<&'a ArgMatches<'_>> for commands::cat::CatCommand<'a> {
    type Error = CommandError;

    fn try_from(args: &'a ArgMatches) -> Result<Self, Self::Error> {
        let rev = args.value_of("rev");
        let files = match args.values_of("files") {
            Some(files) => files.collect(),
            None => vec![],
        };
        Ok(commands::cat::CatCommand::new(rev, files))
    }
}

impl<'a> TryFrom<&'a ArgMatches<'_>>
    for commands::debugdata::DebugDataCommand<'a>