Add Linux support by querying the SQLite database directly

[mrjones2014]

https://github.com/sunaku/dasht

https://zealdocs.org/

A Linux client to download and search docsets, just like Dash, but without needing the actual Dash.app since that's a macOS app.

We can probably detect whether we're on macOS or Linux, and use a different backend on Linux. Likely will need a separate Rust backend for Linux.

This will also require tweaking the config a bit I think.

[oblitum]

Zeal is great replacement for Dash on Linux, I think it's actually the more usual solution than dasht. There's also Zeavim. Would be nice to have support for Zeal.

[mrjones2014]

Hmm.. I think it might make sense for that to be a separate Neovim plugin, in that case.

[oblitum]

Okay. Notice that Zeal is a tool for Linux that relies on Dash docsets (in case there's any confusion about them being wholly unrelated).

[mrjones2014]

Ohhh, okay, gotcha @oblitum

relies on Dash docsets

that's what I liked about dasht. If Zeal is the same way, I can work on adding support for Zeal to this plugin then. I've updated the issue description.

[mrjones2014]

@oblitum does Zeal have a CLI? For the Dash integration I'm using the same CLI that powers their Alfred integration.

[oblitum]

@mrjones2014 I never used, my sole usage of it, for years, is just by launching the gui, either directly or from [n]vim with zeavim.

[oblitum]

It should, given there's zeavim.

[mrjones2014]

It seems that's just opening a query, not previewing items. If that's the case we won't be able to implement it as a telescope picker like we can with Dash.

[oblitum]

hmmm, ah okay, didn't thought of the preview feature. Maybe dasht + zeal could work together (dasht for gathering preview data, dasht or zeal for final display).

[mrjones2014]

Opened zealdocs/zeal#1360 to investigate this further.

[mrjones2014]

Dasht seems to have more recent releases