FZF History Search Widget

[vorburger]

I use the awesome PatrickF1/fzf.fish, and was curious if (something like) that would be possible with JLine3?

This could be kinda cool for my https://docs.enola.dev/use/chat/.

I don't suppose there already is a built in one Widget for this? 😆 If not, is this crazy hard, or reasonably simple to build?

Might there be a way to re-use junegunn/fzf which PatrickF1/fzf.fish is built upon? So I guess you would write a custom Widget which would "shell out" to exec FZF? But will this work Terminal integration wise? I'm asking because of enola-dev/enola#1368... (which is likely NOT a JLine3 related issue, but related to how https://github.com/vorburger/ch.vorburger.exec/ redirects output; but I'm still a bit fuzzy about some of this stuff).

[gnodet]

fzf looks really cool. Not sure yet how it accesses the terminal and if it could be made to work inside a JLine console. The best way would be to give it a try with the gogo shell which supports piping and see if inheriting the output stream when launching the process is sufficient.

[vorburger]

Not sure yet how it accesses the terminal and if it could be made to work inside a JLine console.

@gnodet as far as my current understanding goes (and after having learnt a bit more about all this in the last 3 weeks), this requires using https://github.com/JetBrains/pty4j; see also my related #1295. Without (something like) it, fzf exits with 1 - probably because it doesn't recognize STDIN as a PTY. (Many other tools seem to behave the same way.)

Using what I had outlined on the (unmerged) JetBrains/pty4j#172, I now actually have this working in a local MVP POC (I mean just launching fzf inside a JLine console, but NOT really anything related to "integrating" or "using" it as a History Search Widget).

But I'm not sure if it makes any sense to keep this issue open. Is this something of sufficient future generic interest? Would you welcome a PR to JLine that illustrates using Pty4j? (Without FZF.) Or shall we just close this issue, to clean up a bit, at this point? (I don't mind at all.)