Help command

The CLI comprises a special help command, which accepts as parameter other commands, and provides guidance on what is the correct way to invoke those commands.

NOTE: This special help command is preferred as it will display the full help message.

For instance,

hermes help create

will provide details about all the valid invocations of the create CLI command.

DESCRIPTION:
Create objects (client, connection, or channel) on chains

USAGE:
    hermes create <SUBCOMMAND>

OPTIONS:
    -h, --help    Print help information

SUBCOMMANDS:
    channel       Create a new channel between two chains
    client        Create a new IBC client
    connection    Create a new connection between two chains
    help          Print this message or the help of the given subcommand(s)

This can provide further specific guidance if we add additional parameters, e.g.,

hermes help create channel

DESCRIPTION:
Create a new channel between two chains.

Can create a new channel using a pre-existing connection or alternatively, create a new client and a
new connection underlying the new channel if a pre-existing connection is not provided.

USAGE:
    hermes create channel [OPTIONS] --a-chain <A_CHAIN_ID> --a-connection <A_CONNECTION_ID> --a-port <A_PORT_ID> --b-port <B_PORT_ID>

    hermes create channel [OPTIONS] --a-chain <A_CHAIN_ID> --b-chain <B_CHAIN_ID> --a-port <A_PORT_ID> --b-port <B_PORT_ID> --new-client-connection

OPTIONS:
        --channel-version <VERSION>
            The version for the new channel
            
            [aliases: chan-version]

    -h, --help
            Print help information

        --new-client-connection
            Indicates that a new client and connection will be created underlying the new channel
            
            [aliases: new-client-conn]

        --order <ORDER>
            The channel ordering, valid options 'unordered' (default) and 'ordered'
            
            [default: ORDER_UNORDERED]

        --yes
            Skip new_client_connection confirmation

FLAGS:
        --a-chain <A_CHAIN_ID>
            Identifier of the side `a` chain for the new channel

        --a-connection <A_CONNECTION_ID>
            Identifier of the connection on chain `a` to use in creating the new channel
            
            [aliases: a-conn]

        --a-port <A_PORT_ID>
            Identifier of the side `a` port for the new channel

        --b-chain <B_CHAIN_ID>
            Identifier of the side `b` chain for the new channel

        --b-port <B_PORT_ID>
            Identifier of the side `b` port for the new channel

Additionally, the -h/--help flags typical for CLI applications work on all commands.