Merge pull request #20209 from vedun-z/fix-issue-20187

Update CreateProjectInfo to accept relative analyzer paths

src/Workspaces/Core/Desktop/Workspace/CommandLineProject.cs

@@ -36,8 +36,10 @@ public static ProjectInfo CreateProjectInfo(string projectName, string language,
             var metadataService = tmpWorkspace.Services.GetRequiredService<IMetadataService>();
 
             // we only support file paths in /r command line arguments
+            var relativePathResolver =
+                new RelativePathResolver(commandLineArguments.ReferencePaths, commandLineArguments.BaseDirectory);
             var commandLineMetadataReferenceResolver = new WorkspaceMetadataFileReferenceResolver(
-                metadataService, new RelativePathResolver(commandLineArguments.ReferencePaths, commandLineArguments.BaseDirectory));
+                metadataService, relativePathResolver);
 
             var analyzerLoader = tmpWorkspace.Services.GetRequiredService<IAnalyzerService>().GetLoader();
             var xmlFileResolver = new XmlFileResolver(commandLineArguments.BaseDirectory);
@@ -54,7 +56,7 @@ public static ProjectInfo CreateProjectInfo(string projectName, string language,
             // resolve all analyzer references.
             foreach (var path in commandLineArguments.AnalyzerReferences.Select(r => r.FilePath))
             {
-                analyzerLoader.AddDependencyLocation(path);
+                analyzerLoader.AddDependencyLocation(relativePathResolver.ResolvePath(path, baseFilePath: null));
             }
 
             var boundAnalyzerReferences = commandLineArguments.ResolveAnalyzerReferences(analyzerLoader);

src/Workspaces/CoreTest/WorkspaceTests/CommandLineProjectTests.cs

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
 using System;
+using System.IO;
 using System.Linq;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.CodeAnalysis.Host.Mef;
@@ -110,5 +111,20 @@ public void TestAdditionalFiles()
             Assert.Equal("foo.cs", firstDoc.Name);
             Assert.Equal("bar.cs", secondDoc.Name);
         }
+
+        [Fact]
+        public void TestAnalyzerReferences()
+        {
+            var pathToAssembly = typeof(object).Assembly.Location;
+            var assemblyBaseDir = Path.GetDirectoryName(pathToAssembly);
+            var relativePath = Path.Combine(".", Path.GetFileName(pathToAssembly));
+            string commandLine = @"foo.cs /a:" + relativePath;
+            var info = CommandLineProject.CreateProjectInfo("TestProject", LanguageNames.CSharp, commandLine, assemblyBaseDir);
+
+            var firstDoc = info.Documents.Single();
+            var analyzerRef = info.AnalyzerReferences.First();
+            Assert.Equal("foo.cs", firstDoc.Name);
+            Assert.Equal(pathToAssembly, analyzerRef.FullPath);
+        }
     }
 }