Is there a comprehensive C# linter and formatter like eslint for JS/TS?

Question

I'd like to have my C# projects (.NET Core 3.1+) to be linted and formatted on each build both locally and in CI environment. I know that there's new .NET Analyzers feature and dotnet-format tool in .NET 6, but I can't understand from the documentation if I can make a single comprehensive configuration file that both these tools would use so I can enforce certain code style in my team. Could you help me understand if it is possible?

Answer 1

Yes there is - Roslyn Analyzers.

With a EnforceCodeStyleInBuild element set in your .csproj:

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>

    <!-- this! -->
    <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
  </PropertyGroup>

an .editorconfig file in your project, which you can get like this:

dotnet new editorconfig

and updating your VS Code settings.json to include:

{
  "omnisharp.enableRoslynAnalyzers": true,
  "omnisharp.enableEditorConfigSupport": true
}

And you should be off to the races! I've written this up in more depth here:

https://johnnyreilly.com/eslint-your-csharp-in-vs-code-with-roslyn-analyzers