Rider: Setting file header template with StyleCop enabled

Problem

Default file headers in Rider are overridden when StyleCop is enabled in File | Preferences | Editor | Code Style | Enable StyleCop support, and custom headers set in the File | Preferences | Editor | File Header Template are not applied.

Cause

StyleCop enforces its own rules for file headers, disregarding custom configurations provided through Rider settings

Resolution

To customize file headers when StyleCop is enabled:

1. Create a stylecop.json file: Place the stylecop.json file in the same directory as the .csproj file of the project.

   Example content for stylecop.json:

   {
     "$schema": "https://raw.githubusercontent.com/DotNetAnalyzers/StyleCopAnalyzers/master/StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json",
     "settings": {
       "documentationRules": {
         "companyName": "Your Company Name Inc.",
         "copyrightText": "Copyright (c) Your Company Name. All rights reserved."
       }
     }
   }
   

2. Include stylecop.json in the .csproj file: Add the following lines to the .csproj file to ensure it is recognized:

   <ItemGroup>
     <AdditionalFiles Include="stylecop.json" />
   </ItemGroup>
   

3. Result: After completing these steps, the file headers will reflect the custom settings defined in stylecop.json.

This method ensures that StyleCop applies the desired file header template consistently throughout the project.