language-server | Generic Language Server | Runtime Evironment library

When you place commands in parenthesis in Bash (or any POSIX shell), you are running them in a subshell, with the & of course placing the subshell in the background.

Fish doesn't have the exact concept of a subshell, but for your particular example, you can accomplish the same goal by running in a sub-process rather than a subshell.

You have to read https://microsoft.github.io/language-server-protocol/specifications/specification-current/#headerPart and send a message using json-rpc protocol to the stdin of the process. For example:

i ran into the same problem. I solved it now, here is what i have done.
Steps to fix it:

• open your terminal
• navigate to /opt/anaconda3/bin
• type nano pythonw
• the last line of the file should read /opt/anaconda3/python.app/Contents/MacOS/python "$@"
• this line should be /opt/anaconda3/python.app/pythonapp/Contents/MacOS/python "$@" (the pythonapp part is missing)
• safe and close
• it should work now

Explanation:
There is a file named python, but in a different path (/opt/anaconda3/python.app/pythonapp/Contents/MacOS/python). So I guess, that the internal path is set wrong or somebody forgot to change it. That means, that as soon as you hit the "launch" button, the navigator is looking at the wrong place. We either have to adjust that path manually or wait for a solution from the development team.
Hope i could help

A language server is usually a console application launched by VSCode based on configuration, and its stdin/stdout streams are redirected. There is no port opened usually. Aka, JSON-RPC is a protocol over stdin/stdout, not JSON over HTTP.

If you want to integrate a language server with your own editor, you might fully implement the language server protocol client on the editor side, so that it can perform the same language server process management and stdin/stdout stream redirection. There are many open source projects out there for famous editors, such as

• https://github.com/autozimu/LanguageClient-neovim
• https://github.com/atom-community/atom-languageclient

Depending on the programming language your editor is built upon, you can find more specific examples to follow.

A possible solution is pkgs.myHaskellPackages.server.getBuildInputs.haskellBuildInputs, or pkgs.myHaskellPackages.server.getCabalDeps.libraryHaskellDepends.

You can explore these attributes, or any expression, with nix repl. You may have to expose some values from your let bindings though. In this case I just browsed through haskellPackages.warp in nix repl .

I also noticed you use rec in an overlay. This will work for you until it doesn't. I'd recommend to remove rec to avoid accessing attributes in a third way and use the more standard haskellPackagesNew.servant instead.

Build tags in you environment.yml are quite strict requirements to satisfy and most often not needed. In your case, changing the yml file to

Initially you need to write a specific VSCode extension to do linting, using the diagnostics related VSCode API. That's when TSLint or ESLint extension came out.

But language servers are naturally the central source of diagnostics themselves as they compile the code to AST, so diagnostics API is also available there.

In your case, both tools can tell what might be wrong in your code and you can enable both or disable one of them. It's just a matter of which tool you feel better and reports more issues that you are interested in. They should have many overlaps while a few minor differences in issue catelog.

I seem to have solved it. Emacs cannot find the executable for pyls because the directory of this file is not in the environment variable of Emacs. Execute M-x setenv RET PATH in Emacs, and then set the environment variable. I filled in /home/liu/.local/bin

Hey so it looks like there is a new fork of pyls. I had the same issue and the following worked for me!

See Here:

https://github.com/neovim/nvim-lspconfig/blob/master/CONFIG.md#pylsp

And Here:

https://github.com/python-lsp/python-lsp-server

Try: