Only return diagnostics for the requested file.

src/OmniSharp.Cake/Services/RequestHandlers/Diagnostics/CodeCheckHandler.cs

@@ -1,8 +1,12 @@
-using System.Composition;
+using System;
+using System.Composition;
+using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using OmniSharp.Mef;
 using OmniSharp.Models;
 using OmniSharp.Models.CodeCheck;
+using OmniSharp.Utilities;
 
 namespace OmniSharp.Cake.Services.RequestHandlers.Diagnostics
 {
@@ -18,5 +22,33 @@ public CodeCheckHandler(
 
  public override bool IsValid(CodeCheckRequest request) =>
  !string.IsNullOrEmpty(request.FileName);
+
+ protected override Task<QuickFixResponse> TranslateResponse(QuickFixResponse response, CodeCheckRequest request)
+ {
+ if (response?.QuickFixes == null)
+ {
+ return Task.FromResult(response);
+ }
+
+ var quickFixes = response.QuickFixes.Where(x => PathsAreEqual(x.FileName, request.FileName));
+ response.QuickFixes = quickFixes;
+ return Task.FromResult(response);
+
+ bool PathsAreEqual(string x, string y)
+ {
+ if (x == null && y == null)
+ {
+ return true;
+ }
+ if (x == null || y == null)
+ {
+ return false;
+ }
+
+ var comparer = PlatformHelper.IsWindows ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
+
+ return Path.GetFullPath(x).Equals(Path.GetFullPath(y), comparer);
+ }
+ }
  }
 }

tests/OmniSharp.Cake.Tests/CodeCheckFacts.cs

@@ -48,7 +48,7 @@ public async Task ShouldNotIncludeDiagnosticsFromLoadedFilesIfFileNameIsSpecifie
 var target = Argument(""target"", ""Default"");";
 
  var diagnostics = await FindDiagnostics(input, includeFileName: true);
- Assert.Null(diagnostics);
+ Assert.Empty(diagnostics.QuickFixes);
  }
 
  private async Task<QuickFixResponse> FindDiagnostics(string contents, bool includeFileName)