A wrapper around the language server behind the C# Visual Studio Code extension, Microsoft.CodeAnalysis.LanguageServer, which makes it compatible with other editors, e.g., Helix.
This is more stable and faster than OmniSharp.
This has only been tested on Linux.
This tool works around the quirks of Microsoft.CodeAnalysis.LanguageServer in the following way:
- Launches
Microsoft.CodeAnalysis.LanguageServeras a process - Passes the provided
unix socketand forwards all communication tostdio - Waits for
Capabilitiesnotification from server- Forces
pull diagnosticsto be available. This is a hack to make the server respect clients who does not support dynamic regisration of diagnostic capabilities. This is should be considered a bug in the server and can hopefully be removed with a future version of server
- Forces
- Waits for an
Initializenotification from the client- Finds relevant
.slnor.csprojfiles and sends them to the server as anopennotification.
- Finds relevant
The wrapper uses Microsoft.CodeAnalysis.LanguageServer so you need this on your path.
If you use nix, you can grab nixpkgs.roslyn-ls.
Otherwise:
- Find and download
Microsoft.CodeAnalysis.LanguageServerfor your architecture at the public feed. - Unzip the
.nupkgfile withunzip - Find and move the
Microsoft.CodeAnalysis.LanguageServerexecutable to a directory on your path, e.g.,~/.local/bin.
If you use nix, you can use this repository's nix flake.
Alternatively, install with cargo: cargo install --git https://github.com/SofusA/roslyn-language-server
Since Microsoft.CodeAnalysis.LanguageServer only supports pull diagnostics and Helix does not (yet), you would need to use my branch at github:sofusa/helix-pull-diagnostics.
[language-server.roslyn]
command = "roslyn-language-server"
[[language]]
name = "c-sharp"
language-servers = ["roslyn"]