Known compatible LSP servers

[j-hui]

This plugin is known to work with the following LSP servers:

• rust-analyzer (Rust)
• sumneko (Lua)
• null-ls (generic)
• gopls (Go [*issue])
• tsserver (Typescript, Javascript [*caveat])
• hls (Haskell)
• clangd (C, C++, Objective-C)
• pyright (Python)
• kotlin-language-server (Kotlin)
• dartls (Dart [*does not work with flutter-tools.nvim])
• erlangls (Erlang)
• solargraph (Ruby)

And doesn't (yet) work with the following:

• jdtls (Java [see nvim-jdtls support #57])
• elixirls (Elixir)

Please comment below if you find this plugin works or doesn't work with an LSP server you use.

---

Note that fidget's implementation relies on my cursory and incomplete understanding of the progress notification spec. Please file a separate issue if you think there's something I missed.

However, if language servers actually deviate from spec, then this plugin will not know how to handle that. Please also file an issue in this repo for these cases.

Ideally we should never terminate ungracefully, and have some kind of sane behavior for handling these cases. For example, if a server never sends an end progress notification, then the fidget will remain stuck onscreen.

At the same time, if language servers do not appear to be conforming to LSP, we should file an issue with their maintainers, if anything but to clarify what the behavior is.

[rockyzhang24]

For tsserver, I find this plugin works great with TypeScript, but not JavaScript. I tested it by opening a file in a JavaScript repo, but nothing was shown up.

[mrjones2014]

hm, @yanzhang0219 I don't have that issue. It works the same for me in Javascript files.

[rockyzhang24]

@mrjones2014 could you please provide the js repo? I want to test it on my end. I cloned some js repos from github but not any progress information was shown on the bottom after I opened js files. Thanks.

[mrjones2014]

I just tested it with a proprietary repo I had open at work. But testing a little further, it seems like there is an issue when there is only Javascript. It worked when I opened a Javascript file in a project which also contains Typescript files.

But I tested again with https://github.com/mrjones2014/eslint-plugin-storage and was able to reproduce the issue, actually.

[rockyzhang24]

Yes. That's what I was saying. Pure js repo has the issue. Let me test your repo now.

UPDATE: it is confirmed that it doesn't work with pure js repo.

[rockyzhang24]

I tested lsp-status.nvim just now and it didn't show any progress for the pure js repo. So I think it completely depends on the server. If the server doesn't return progress information to Neovim core lsp client, this plugin can do nothing. Am I correct? @j-hui

[j-hui]

If the server doesn't return progress information to Neovim core lsp client, this plugin can do nothing.

Yeah that's exactly right.

[gegoune]

This is what I was thinking from the very beginning. I am not sure if there is need for specifying which servers it works with, it's up to the server to send messages and this plugin cannot do anything extra to ensure compatibility with specific servers. Isn't it correct?

Great plugin, having messages in status line never sat well with me. Your plugins employs such a simple yet beautiful idea, well done!

[j-hui]

Thanks @gegoune !

I am not sure if there is need for specifying which servers it works with, it's up to the server to send messages and this plugin cannot do anything extra to ensure compatibility with specific servers. Isn't it correct?

Perhaps not, but a few people had asked about this information, so I figured it's worth accumulating this knowledge somewhere.

Also, while LSP defines the progress endpoint, it doesn't seem to say anything about the format with which servers should report progress. For example, right now I assume that each progress notification comes with a message field and a title field. I just read the document more closely and realized the format is indeed specified by the protocol. But I still want to keep this issue to help me keep track of different schemas different language servers may employ, in case my implementation misses anything in the spec, or in case any server deviates from spec.

[polyzen]

Works with pyright as well.

[crisidev]

I am using this also with kotlin (https://github.com/fwcd/kotlin-language-server) and works properly. FYI the kotlin-language-server takes a lot to startup, so fidget starts around 30 seconds after opening the first file of the session

[Slotos]

Solargraph (Ruby LSP) works. Server itself can take a few seconds to start sending messages, especially on larger projects.

[cjnucette]

Yes. That's what I was saying. Pure js repo has the issue. Let me test your repo now.

UPDATE: it is confirmed that it doesn't work with pure js repo.

You need either a tsconfig.json or a jsconfig.json file on your project for it to work.