Refactor solution file path handling in module addition

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectModification/SolutionFileModifier.cs

@@ -51,16 +51,17 @@ public class SolutionFileModifier : ITransientDependency
 
     private async Task AddModuleAsync(ModuleWithMastersInfo module, string solutionFile)
     {
+        var slnDir = Path.GetDirectoryName(solutionFile);
         var projectsUnderModule = Directory.GetFiles(
-            Path.Combine(Path.GetDirectoryName(solutionFile), "modules", module.Name),
+            Path.Combine(slnDir, "modules", module.Name),
             "*.csproj",
             SearchOption.AllDirectories);
 
         var projectsUnderTest = new List<string>();
-        if (Directory.Exists(Path.Combine(Path.GetDirectoryName(solutionFile), "modules", module.Name, "test")))
+        if (Directory.Exists(Path.Combine(slnDir, "modules", module.Name, "test")))
         {
             projectsUnderTest = Directory.GetFiles(
-                Path.Combine(Path.GetDirectoryName(solutionFile), "modules", module.Name, "test"),
+                Path.Combine(slnDir, "modules", module.Name, "test"),
                 "*.csproj",
                 SearchOption.AllDirectories).ToList();
         }
@@ -68,11 +69,9 @@ public class SolutionFileModifier : ITransientDependency
         foreach (var projectPath in projectsUnderModule)
         {
             var folder = projectsUnderTest.Contains(projectPath) ? "test" : "src";
-
             var projectId = Path.GetFileName(projectPath).Replace(".csproj", "");
-            var package = @$"modules\{module.Name}\{folder}\{projectId}\{projectId}.csproj";
-
-            _cmdHelper.RunCmd($"dotnet sln \"{solutionFile}\" add \"{package}\" --solution-folder {folder}", workingDirectory: Path.GetDirectoryName(solutionFile));
+            var package = Path.Combine(slnDir, "modules", module.Name, folder, projectId, $"{projectId}.csproj");
+            _cmdHelper.RunCmd($"dotnet sln \"{solutionFile}\" add \"{package}\" --solution-folder {folder}", workingDirectory: slnDir);
         }
 
         if (module.MasterModuleInfos != null)