unisonweb
fzf preview for definitions
Is your feature request related to a problem? Please describe.
When I run a command like view or edit, I often need a bit more context to figure out which definition I want to select. For example I might narrow down on List.iterate, List.tabulate, and List.unfold as the potential definition that I need, but the name alone isn't enough to remind me which one I am seeking.
Describe the solution you'd like
It would be nice if having the cursor over a definition showed a preview of the definition using fzf's --preview support. It should at least contain the type signature, but could potentially include the pretty-printed implementation as well.
The fzf support for preview runs an external process with the current line as an argument (ex: fzf --preview 'cat {}'). I'm not totally sure how ucm should plug into this. Should it call into curl using the host:port that it is bound to? @ChrisPenner is much more equipped than I am to know the right approach. Personally I think it's okay to implement it in a way that won't work on all systems (ex: don't have curl installed) as long as it gracefully degrades, since this is already in a path where we rely on the user having fzf installed.
Describe alternatives you've considered
You could provide a bit more context by providing the type signature directly in the fzf result line but this gets really noisy and often requires multiple lines. I also don't know whether it's possible to do this without messing with fuzzy finding.
Yeah either curl or just piping through a fifo or something would be a reasonable enough approach. I can't promise I'll get to this any time soon, but probably wouldn't be too hard to knock out some day :)
