Push and set to upstream/remote

[stackmystack]

When using neogit and before that the proper magit, you can actually have 2 remotes: upstream (u) and "remote" or "elsewhere" (p).

If you want to push, you can hit (u) and you'll get a list of possible remotes. After you select one, the remote will be set to the current branch's upstream. Same thing for (p).

I wanted to implement that, and I tried to see how easy it is, but I stopped because:

1. I never worked on ratatui and I don't think I know the repo well enough and
2. it might not be the thing that is wanted …

Having lightly studied the repo, it seems that we need a "filterable prompt":

1. No free-form text input
2. Filter from a provided list (preferably fuzzy)
3. Can also automatically default to the value origin, so all you have to do in most workflows is hit "enter".
4. Tab/S-Tab moves between items

Alongside that, we will need to implement a "Remotes" screen that allows to add/remove a remote, and change the "upstream" and "remote/elsewhere" values for the current branch.

I must admit, I care less about add/remove remote, but setting upstream and remotes I definitely need to make gitu my daily driver, and I really really really … want to :)

So my questions would be:

1. Is auto-setting the remotes wanted in gitu?
2. Is the "Filterable Screen" approach reasonable, or do you have a better UI/UX idea in mind?

[altsem]

1. Is auto-setting the remotes wanted in gitu?

Yes! I think if the user has not configured push.autoSetupRemote = true, then it should give you a prompt to set one up (as Magit does).

Related issues:
#58
#90

Documented by Magit:
https://magit.vc/manual/magit/The-Two-Remotes.html

Is the "Filterable Screen" approach reasonable, or do you have a better UI/UX idea in mind?

There are a bunch of repeating cases where autocomplete/seeing a list of options to narrow down would be useful. These often also have a default value that would apply when pressing enter.

Take the checkout prompt bb (or lo, re etc..):

? Checkout (default 88e4467616ead201e37ba9424509dda91fac8688): › 

What I make of a filtered list a'la fzf is that it:

• won't let me pick an invalid option
• shows a list of things right away
• Fast to select things bbmas<enter> to checkout master

And typical autocomplete:

• Would typically not show immediately (but could?)
• Usually not fuzzy (I think it could be?)
• An extra key press: bbmas<tab><enter> to checkout master
• More flexible with free-form input (creating new branch etc.)

They could become separate things.

Since we're in the terminal, an easy way out could be to just spawn fzf.
...and yea, the ui code is clunky to say the least at the moment. 🤦

[stackmystack]

I was thinking of the fzf-kind of filtering.

As for fzf, I have it installed, and it would be a fast escape hatch for the problem, but:

1. It will force us to get out of the gitu GUI
2. It will force the user to install fzf on their machine, which is far less than ideal. I have it on mine, but in certain environments I would not be able to do so.

...and yea, the ui code is clunky to say the least at the moment. 🤦

Do you know of any ratatui projects we can draw inspiration from?