2022-02-06 how to list analyzers output without ide.md

How to view analyzers info messages without ide

When you run dotnet build you get only errors and warnings in output. What if you like to see info level messages too?

You can try

• add <ErrorLog>compiler-diagnostics.sarif</ErrorLog> to .csproj file
• build your app
• install Sarif.Multitool

dotnet tool install --global Sarif.Multitool

• conver compiler-diagnostics.sarif via

sarif rewrite compiler-diagnostics.sarif

• use plugin for Visual studio code (dotnet build produces sarif file with version 1.0.0 but vscode plugin supports only 2.1.0 – that's why we have converted file on previous step)

Example

mkdir sandbox && cd "$_"
dotnet new console

add

internal enum E
{
    Field1 = 1,
    Field2 = 2,
    Field3 = 2,
}

to Program.cs

(Don't forget about ErrorLog)

ℹ️ Starting in .NET 5, .NET compiler platform (Roslyn) analyzers are included with the .NET SDK and you don't need to install them separately. If your project targets .NET 5 or later, code analysis is enabled by default.