Cli: Switch-To command should work on a single project

resolves https://github.com/abpframework/abp/issues/16839

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

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
 using Volo.Abp.Cli.Args;
@@ -32,6 +33,37 @@ public class PackagePreviewSwitcher : ITransientDependency
     {
         var solutionPaths = GetSolutionPaths(commandLineArgs);
 
+        if (solutionPaths.Any())
+        {
+            await SwitchSolutionsToPreview(solutionPaths);
+        }
+        else
+        {
+            var projectPaths = GetProjectPaths(commandLineArgs);
+            
+            await SwitchProjectsToPreview(projectPaths);
+        }
+    }
+
+    private async Task SwitchProjectsToPreview(List<string> projects)
+    {
+        foreach (var project in projects)
+        {
+            var folder = Path.GetDirectoryName(project);
+
+            await _nugetPackagesVersionUpdater.UpdateProjectAsync(
+                project,
+                includeReleaseCandidates: true);
+
+            await _npmPackagesUpdater.Update(
+                folder,
+                false,
+                true);
+        }
+    }
+
+    private async Task SwitchSolutionsToPreview(List<string> solutionPaths)
+    {
         foreach (var solutionPath in solutionPaths)
         {
             var solutionFolder = Path.GetDirectoryName(solutionPath);
@@ -56,69 +88,134 @@ public class PackagePreviewSwitcher : ITransientDependency
         }
     }
 
-    public async Task SwitchToNightlyPreview(CommandLineArgs commandLineArgs)
+    public async Task SwitchToStable(CommandLineArgs commandLineArgs)
     {
         var solutionPaths = GetSolutionPaths(commandLineArgs);
 
+        if (solutionPaths.Any())
+        {
+            await SwitchSolutionsToStable(solutionPaths);
+        }
+        else
+        {
+            var projectPaths = GetProjectPaths(commandLineArgs);
+            
+            await SwitchProjectsToStable(projectPaths);
+        }
+    }
+
+    private async Task SwitchProjectsToStable(List<string> projects)
+    {
+        foreach (var project in projects)
+        {
+            var folder = Path.GetDirectoryName(project);
+
+            await _nugetPackagesVersionUpdater.UpdateProjectAsync(
+                project,
+                false,
+                false,
+                true);
+
+            await _npmPackagesUpdater.Update(
+                folder,
+                false,
+                false,
+                true);
+        }
+    }
+
+    private async Task SwitchSolutionsToStable(List<string> solutionPaths)
+    {
         foreach (var solutionPath in solutionPaths)
         {
             var solutionFolder = Path.GetDirectoryName(solutionPath);
             var solutionAngularFolder = GetSolutionAngularFolder(solutionFolder);
 
-            _packageSourceManager.Add(solutionFolder, "ABP Nightly", "https://www.myget.org/F/abp-nightly/api/v3/index.json");
+            _packageSourceManager.Remove(solutionFolder, "ABP Nightly");
 
-            if (solutionPath != null)
-            {
-                await _nugetPackagesVersionUpdater.UpdateSolutionAsync(
-                    solutionPath,
-                    true);
-            }
+            await _nugetPackagesVersionUpdater.UpdateSolutionAsync(
+                solutionPath,
+                false,
+                false,
+                true);
 
             await _npmPackagesUpdater.Update(
                 solutionFolder,
+                false,
+                false,
                 true);
 
             if (solutionAngularFolder != null)
             {
                 await _npmPackagesUpdater.Update(
                     solutionAngularFolder,
+                    false,
+                    false,
                     true);
             }
         }
     }
 
-    public async Task SwitchToStable(CommandLineArgs commandLineArgs)
+    public async Task SwitchToNightlyPreview(CommandLineArgs commandLineArgs)
     {
         var solutionPaths = GetSolutionPaths(commandLineArgs);
 
+        if (solutionPaths.Any())
+        {
+            await SwitchSolutionsToNightlyPreview(solutionPaths);
+        }
+        else
+        {
+            var projectPaths = GetProjectPaths(commandLineArgs);
+            
+            await SwitchProjectsToNightlyPreview(projectPaths);
+        }
+    }
+
+    private async Task SwitchProjectsToNightlyPreview(List<string> projects)
+    {
+        foreach (var project in projects)
+        {
+            var folder = Path.GetDirectoryName(project);
+
+            _packageSourceManager.Add(FindSolutionFolder(project) ?? folder, "ABP Nightly",
+                "https://www.myget.org/F/abp-nightly/api/v3/index.json");
+
+            await _nugetPackagesVersionUpdater.UpdateSolutionAsync(
+                project,
+                true);
+
+            await _npmPackagesUpdater.Update(
+                folder,
+                true);
+        }
+    }
+
+    private async Task SwitchSolutionsToNightlyPreview(List<string> solutionPaths)
+    {
         foreach (var solutionPath in solutionPaths)
         {
             var solutionFolder = Path.GetDirectoryName(solutionPath);
             var solutionAngularFolder = GetSolutionAngularFolder(solutionFolder);
 
-            _packageSourceManager.Remove(solutionFolder, "ABP Nightly");
+            _packageSourceManager.Add(solutionFolder, "ABP Nightly",
+                "https://www.myget.org/F/abp-nightly/api/v3/index.json");
 
             if (solutionPath != null)
             {
                 await _nugetPackagesVersionUpdater.UpdateSolutionAsync(
                     solutionPath,
-                    false,
-                    false,
                     true);
             }
 
             await _npmPackagesUpdater.Update(
                 solutionFolder,
-                false,
-                false,
                 true);
 
             if (solutionAngularFolder != null)
             {
                 await _npmPackagesUpdater.Update(
                     solutionAngularFolder,
-                    false,
-                    false,
                     true);
             }
         }
@@ -126,22 +223,18 @@ public class PackagePreviewSwitcher : ITransientDependency
 
     private List<string> GetSolutionPaths(CommandLineArgs commandLineArgs)
     {
-        var directory = commandLineArgs.Options.GetOrNull(Options.SolutionDirectory.Short, Options.SolutionDirectory.Long)
-                        ?? Directory.GetCurrentDirectory();
-
-        var solutionPaths = Directory.GetFiles(directory, "*.sln", SearchOption.AllDirectories);
-
-        if (!solutionPaths.Any())
-        {
-            Logger.LogWarning("No solution (.sln) found to change version.");
-        }
+        return Directory.GetFiles(GetDirectory(commandLineArgs), "*.sln", SearchOption.AllDirectories).ToList();
+    }
 
-        return solutionPaths.ToList();
+    private List<string> GetProjectPaths(CommandLineArgs commandLineArgs)
+    {
+        return Directory.GetFiles(GetDirectory(commandLineArgs), "*.csproj", SearchOption.AllDirectories).ToList();
     }
 
-    private string GetSolutionFolder(CommandLineArgs commandLineArgs)
+    private string GetDirectory(CommandLineArgs commandLineArgs)
     {
         return commandLineArgs.Options.GetOrNull(Options.SolutionDirectory.Short, Options.SolutionDirectory.Long)
+               ?? commandLineArgs.Options.GetOrNull(Options.Directory.Short, Options.Directory.Long)
                ?? Directory.GetCurrentDirectory();
     }
 
@@ -160,6 +253,31 @@ public class PackagePreviewSwitcher : ITransientDependency
         }
 
         return null;
+    }    
+    
+    [CanBeNull]
+    private string FindSolutionFolder(string projectFile)
+    {
+        var targetFolder = Path.GetDirectoryName(projectFile);
+
+        do
+        {
+            if (Directory.GetParent(targetFolder) != null)
+            {
+                targetFolder = Directory.GetParent(targetFolder).FullName;
+            }
+            else
+            {
+                return Path.GetDirectoryName(projectFile);
+            }
+
+            if (Directory.GetFiles(targetFolder, "*.sln", SearchOption.TopDirectoryOnly).Any())
+            {
+                break;
+            }
+        } while (targetFolder != null);
+
+        return targetFolder;
     }
 
     public static class Options
@@ -169,5 +287,10 @@ public class PackagePreviewSwitcher : ITransientDependency
             public const string Short = "sd";
             public const string Long = "solution-directory";
         }
+        public static class Directory
+        {
+            public const string Short = "d";
+            public const string Long = "directory";
+        }
     }
 }