C# for GNOME Builder

A project to achieve first class support for C# inside GNOME Builder.

The language server csharp-ls is used to provide symbol and metadata information. Ideally, we will one day support OmniSharp, however various desync bugs makes it near-unusable in the mean time.

builder-csharp is packaged as a flatpak extension to GNOME Builder.

Prerequisites

The csharp-ls language server is used. Clone the csharp-ls build repository at the PATH ~/Projects. Build it and ensure the CSharpLanguageServer executable can be found at the path $HOME/Projects/csharp-language-server/src/CSharpLanguageServer/bin/Debug/net6.0/CSharpLanguageServer.

In future, the language server will be included inside the flatpak sandbox.

Building

You will need to use a custom build of GNOME Builder (with development files left in) in order to compile builder-csharp. You can get a flatpak of this build here temporarily - click 'Download' under 'Job artifacts'.

Dependencies:

1. gnome-nightly flatpak repo installed
2. Custom GNOME Builder flatpak from above (this is only to build, you can use the regular nightly version to run)
3. flatpak-builder

Run the following to build and install the plugin:

flatpak-builder _build --install --force-clean org.gnome.Builder.Plugin.CSharp.json

You can uninstall the plugin at any time and reset to a "clean slate":

flatpak remove org.gnome.Builder.Plugin.CSharp

Contributing

Let's make C# development a first class experience on Linux. Contributions are welcome, especially if you want to help fix the LSP-Builder interaction bugs.

Meanwhile, if you're interested in using C# with GTK and friends, check out gir.core and join us on matrix #gircore (NOTE: You need a client with E2E support like Element or FractalNext).