Enable a more interactive CLI via Liner

[Luke-Ed]

Add liner as a dependency, and enable the interactive cli to have a history and the user to iterate through that history

Should provide the functionality requested in: #60, but doesn't use the library in question.

I'll also note, this is my first time working in go, so I'm more than happy for any input.

[itzg]

Very cool!

Do you know if it happens to support piped stdin like if people are cat'ing a file of commands into rcon-cli? I'm not sure if that's a common use case, so probably not a problem if not supported.

[Luke-Ed]

I didn't even think of that as a use case, I'll spin up an environment and play with it a bit.

[Luke-Ed]

Looks like it handles it, at least as I'd expect it too

echo -e "time set day\ndeop Ser_Luke\nlist" | ./rcon-cli --password <omitted>

Set the time to 1000
Made Ser_Luke no longer a server operator
There are 0 of a max of 20 players online: 

[itzg]

Thanks for checking that.

[itzg]

Included in this image build: https://github.com/itzg/docker-minecraft-server/actions/runs/13742852242

[Luke-Ed]

You might also be able to close #10, if you just wanted the history. Although this patch only preserves history for the lifetime of the interactive session (would need to write to a file for longer)

[itzg]

Thanks, yeah seems fair to close that one due to this change.