Hey all,

What can I say, after few hours of on and off tinkering I got it to work!

The hover information is incredibly helpful, as is jump to definition. It works even in modules with type and name errors!

The error information not so much (yet), at least not compared to the shorter feedback loop of using ghcid.

Haven't used completions in anger yet, but it works quite well when fooling around with it.

Great work, Zubin and Matthew! :)

As to my setup: I'm using VSCode Remote, so the language server will run on my build VM which VSCode communicates with via SSH.

I'm using nix+home-manager to manage my configuration over there, so I had to wrap the hie executable with the following script:

#! /usr/bin/env bash
. /etc/profile.d/nix.sh
nix-shell --pure /path/to/ghc.nix/ --run /path/to/haskell-ide-engine/dist-newstyle/build/x86_64-linux/ghc-8.6.4/haskell-ide-engine-1.0.0.0/x/hie/build/hie/hie

Also the shellHook echo output from ghc.nix confuses the language server protocol, so be sure to delete those 4 lines from ghc.nix/default.nix.

It takes quite a while to initialise the first time around. Be sure to look at the output of the alanz.vscode-hie-server extension to see if there's any progress being made.

Can only encourage you to try this out!

Best,

Sebastian

Am Do., 25. Juli 2019 um 12:21 Uhr schrieb Matthew Pickering <matthewtpickering@gmail.com>:

Hi all,

As some of you know I have been working on getting haskell-ide-engine
working on GHC for the last few months. Perhaps now the branch is in a
usable state where people can try it and report issues. All the basic
features such as, hover, completion, error reporting, go to definition
etc should work well. I suspect this will be enough for most
developers.

I have compiled a list of instructions about how to try out the branch.

https://gist.github.com/mpickering/68ae458d2c426a29a7c1ddf798dbc793

In the last few weeks Zubin has been a great help finishing some parts
of the patch that I lost steam for and given it a much better chance
of getting merged into the main repo before the end of the year.

Cheers,

Matt
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