usage in a nix project? #78

o1lo01ol1o · 2018-05-02T14:12:59Z

There are some notes in the documentation about using the hie wrappers to get support in nix projects, is this possible?

I've currently installed hie-nix into my project environment (I can run the hie sever from my nix-shell) and I have the following wrappers in my vscode configuration.

    "languageServerHaskell.useCustomHieWrapper": true,
    "languageServerHaskell.useCustomHieWrapperPath": "${workspaceFolder}/backend/hie.sh"

where backend/hie.sh is:

eval "nix-shell -A backend.env --run 'hie-8.0 --lsp -d -r .'"

But it looks like this doesn't work for vscode-hie-server

[Error - 10:01:51 AM] Starting client failed
Error: spawn EACCES
	at exports._errnoException (util.js:1050:11)
	at ChildProcess.spawn (internal/child_process.js:319:11)
	at Object.exports.spawn (child_process.js:390:9)
	at _getServerWorkingDir.then.serverWorkingDir (... alanz.vscode-hie-server-0.0.16/node_modules/vscode-languageclient/lib/main.js:346:40)
	at <anonymous>

can anyone advise?

The text was updated successfully, but these errors were encountered:

Tehnix · 2018-05-08T09:16:27Z

Hmm, as long as VSCode can interact with the process via stdin/stdout, it should technically work 🤔

alanz · 2018-05-19T10:26:12Z

I think you should ask this in the nix support zone, I am sure there are some people using it, but have no idea how.

kitlangton · 2019-05-10T18:02:19Z

Any luck with this?

codygman · 2020-09-01T19:37:46Z

I'm late to the party... but @o1lo01ol1o you probably want to just use nix environment selector. It's a bit more manual than say the direnv plugin+ lorri but it always works.

Also until vscode supports plugin ordering microsoft/vscode#57481 (which they seem to have no interest in) any automated direnv usage will only ever work by chance since direnv needs to modify the load paths/env vars of other plugins before they start.

Related: microsoft/vscode#13292

Rizary · 2020-12-19T09:08:10Z

I get stuck whenever I want to save the file with Running 'Haskell Formatter', sometimes running code actions. It's just stuck.

Here is my log:

[Error - 4:07:41 PM] Request textDocument/codeAction failed.
Error: Connection got disposed.
	at Object.dispose (/home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:90902)
	at Object.dispose (/home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:74181)
	at /home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:70796
[Error - 4:07:41 PM] Request textDocument/formatting failed.
Error: Connection got disposed.
	at Object.dispose (/home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:90902)
	at Object.dispose (/home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:74181)
	at /home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:70796
[Error - 4:07:41 PM] Request textDocument/documentSymbol failed.
Error: Connection got disposed.
	at Object.dispose (/home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:90902)
	at Object.dispose (/home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:74181)
	at /home/rizary/.vscode-server-insiders/extensions/haskell.haskell-1.2.0/dist/extension.js:1:70796
Found "/home/rizary/rizichain/hie.yaml" for "/home/rizary/rizichain/a"
Module "/home/rizary/rizichain/a" is loaded by Cradle: Cradle {cradleRootDir = "/home/rizary/rizichain", cradleOptsProg = CradleAction: Cabal}
Run entered for haskell-language-server-wrapper(haskell-language-server-wrapper) Version 0.7.1.0 x86_64 ghc-8.10.2
Current directory: /home/rizary/rizichain
Operating system: linux
Arguments: ["--lsp","-d","-l","/home/rizary/hls.log"]
Cradle directory: /home/rizary/rizichain
Cradle type: Cabal

Tool versions found on the $PATH
cabal:		3.2.0.0
stack:		Not found
ghc:		8.10.2


Consulting the cradle to get project GHC version...
Project GHC version: 8.10.2
haskell-language-server exe candidates: ["haskell-language-server-8.10.2","haskell-language-server-8.10","haskell-language-server"]
Launching haskell-language-server exe at:/nix/store/mz18izh5rzskjfr9ji5kas6341scshx1-rizichain-env/bin/haskell-language-server-8.10.2
haskell-language-server version: 0.7.1.0 (GHC: 8.10.2) (PATH: /nix/store/jlwpd1fksr37ibnzz5c4cqi565n43xvr-haskell-language-server-0.7.1.0/bin/haskell-language-server)
Starting (haskell-language-server)LSP server...
  with arguments: LspArguments {argLSP = True, argsCwd = Nothing, argFiles = [], argsShakeProfiling = Nothing, argsTesting = False, argsExamplePlugin = False, argsDebugOn = True, argsLogFile = Just "/home/rizary/hls.log", argsThreads = 0, argsProjectGhcVersion = False}
  with plugins: [PluginId "brittany",PluginId "eval",PluginId "floskell",PluginId "fourmolu",PluginId "ghcide",PluginId "hlint",PluginId "importLens",PluginId "moduleName",PluginId "ormolu",PluginId "pragmas",PluginId "retrie",PluginId "stylish-haskell",PluginId "tactic"]
  in directory: /home/rizary/rizichain
If you are seeing this in a terminal, you probably should have run ghcide WITHOUT the --lsp option!
 Started LSP server in 0.01s

jneira · 2021-03-09T06:38:37Z

The state-of-the-art in nix usage of the haskell-language-server is in this issue: haskell/haskell-language-server#122

uhbif19 · 2023-03-10T14:49:32Z

@jneira The issue you mentioned seems to be about HLS installation, while this issue is about integration of HLS from Nix shell into VS Code.

fendor · 2023-03-10T16:18:40Z

If you want to use this extension with nix, choose to manage your HLS installation manually by setting "haskell.manageHLS": "PATH", and make sure an appropriate HLS-wrapper or HLS installation is found on the PATH.

uhbif19 · 2023-03-12T13:56:33Z

@fendor

Yes this is the hack I use.

I know three options:

Set HLS path as Nix version globally. This wont work if you have multiple projects. (see also: https://plutus.readthedocs.io/en/latest/troubleshooting.html#wrong-version)
1a. Improve to use parameterized path ${workspaceFolder}/scripts/run-hls.sh
Start VS Code from Nix shell. That works but breaks functionality of restarting VS Code projects on start.
Use VS Code direnv plugin. This should work (while I not checked yet), but, as I read, this may be not-stable due to VS Code does not support load order for extensions.

I see two options to improve this situation:

Support by Haskell plugin autoload of project environments: direnv and/or Nix shell.
Support project-wide (not global like now) HLS path

fendor · 2023-03-12T15:27:16Z

Support project-wide (not global like now) HLS path

This is a VSCode feature, create in your project root .vscode/settings.json and specify

{
  "haskell.serverExecutablePath": "<hls-binary>"
}

hasufell · 2023-03-12T15:43:55Z

Support by Haskell plugin autoload of project environments: direnv and/or Nix shell.

Hard no for any code support specific to nix.

PATH is generic enough.

uhbif19 · 2023-03-12T16:26:59Z

This is a VSCode feature, create in your project root .vscode/settings.json and specify

You right, this seems to be working. Would you consider adding this way into README?

fendor · 2023-03-12T17:53:58Z

Suure, but I am also open to contributors to add the documentation they would like to see 😇

mardukbp · 2023-05-20T19:26:10Z

I struggled with this problem for several hours, until I realized that one can control the temporal order of the dependencies. The Haskell extension is loaded when the first .hs file is opened. In order for the extension to find the executables in the Nix environment (haskell-language-server-wrapper, ghc, cabal, etc.), the $PATH must already contain the paths to the Nix store. The $PATH is set when the Nix Environment Selector extension loads. Therefore, when opening a Workspace wait until this extension finishes loading and then open a .hs file. Hope this saves somebody time.

For the sake of reproducibility, here is a minimal default.nix file:

{pkgs ? import <nixpkgs> {}}: with pkgs;
let
  myHaskell = haskellPackages.ghcWithPackages myHaskellPackages;
  myHaskellPackages = packages: with packages; [
    haskell-language-server
    # put haskell packages here
  ];
in
mkShell {
  buildInputs = [
    myHaskell
    cabal-install
    ghcid
    # put any other binaries we need here
  ];
}

j-mueller mentioned this issue Aug 13, 2019

Self-contained local development environment IntersectMBO/plutus#1349

Closed

jneira closed this as completed Mar 9, 2021

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usage in a nix project? #78

usage in a nix project? #78

o1lo01ol1o commented May 2, 2018

Tehnix commented May 8, 2018

alanz commented May 19, 2018

kitlangton commented May 10, 2019

codygman commented Sep 1, 2020 •

edited

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Rizary commented Dec 19, 2020

jneira commented Mar 9, 2021

uhbif19 commented Mar 10, 2023

fendor commented Mar 10, 2023

uhbif19 commented Mar 12, 2023

fendor commented Mar 12, 2023

hasufell commented Mar 12, 2023

uhbif19 commented Mar 12, 2023

fendor commented Mar 12, 2023

mardukbp commented May 20, 2023

usage in a nix project? #78

usage in a nix project? #78

Comments

o1lo01ol1o commented May 2, 2018

Tehnix commented May 8, 2018

alanz commented May 19, 2018

kitlangton commented May 10, 2019

codygman commented Sep 1, 2020 • edited Loading

Rizary commented Dec 19, 2020

jneira commented Mar 9, 2021

uhbif19 commented Mar 10, 2023

fendor commented Mar 10, 2023

uhbif19 commented Mar 12, 2023

fendor commented Mar 12, 2023

hasufell commented Mar 12, 2023

uhbif19 commented Mar 12, 2023

fendor commented Mar 12, 2023

mardukbp commented May 20, 2023

codygman commented Sep 1, 2020 •

edited

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