this post was submitted on 19 Oct 2023
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How to disable everything from an lsp except for code completion (eglot)? (alien.top)
submitted 11 months ago by CorysInTheHouse69@alien.top to c/emacs
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For speed, I wish to disable everything that a language server (in this case clangd) provides *except* for code completion. I use eglot. How would I do this?

PS: No I don't want to use lsp-bridge because I want my own custom completion style.

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[–] --_II_--@alien.top 1 points 11 months ago

Eglot has a feature that allows you to customize the capabilities of a server. You can use eglot-server-programs to do this. Just specify the server and capabilities you want in a cons cell, like (eglot-server-programs '((c++-mode . ("clangd" "--background-index" "--clang-tidy" "--completion-style=detailed")))). Here, the --completion-style=detailed is just an example, replace it with your custom completion style.

[–] Azkae@alien.top 1 points 11 months ago

I'm not sure what you want to disable exactly but you should look at eglot-ignored-server-capabilities:

For example to disable inlay hints: (setq eglot-ignored-server-capabilities '(:inlayHintProvider)).

Here is the complete list of server capabilities:

          (const :tag "Documentation on hover" :hoverProvider)
          (const :tag "Code completion" :completionProvider)
          (const :tag "Function signature help" :signatureHelpProvider)
          (const :tag "Go to definition" :definitionProvider)
          (const :tag "Go to type definition" :typeDefinitionProvider)
          (const :tag "Go to implementation" :implementationProvider)
          (const :tag "Go to declaration" :declarationProvider)
          (const :tag "Find references" :referencesProvider)
          (const :tag "Highlight symbols automatically" :documentHighlightProvider)
          (const :tag "List symbols in buffer" :documentSymbolProvider)
          (const :tag "List symbols in workspace" :workspaceSymbolProvider)
          (const :tag "Execute code actions" :codeActionProvider)
          (const :tag "Code lens" :codeLensProvider)
          (const :tag "Format buffer" :documentFormattingProvider)
          (const :tag "Format portion of buffer" :documentRangeFormattingProvider)
          (const :tag "On-type formatting" :documentOnTypeFormattingProvider)
          (const :tag "Rename symbol" :renameProvider)
          (const :tag "Highlight links in document" :documentLinkProvider)
          (const :tag "Decorate color references" :colorProvider)
          (const :tag "Fold regions of buffer" :foldingRangeProvider)
          (const :tag "Execute custom commands" :executeCommandProvider)
          (const :tag "Inlay hints" :inlayHintProvider)