Change current directory. Improve a couple error returns

Source/v2/Meadow.CLI/CommandErrors.cs

@@ -5,5 +5,7 @@ public enum CommandErrors
         Success = 0,
         GeneralError = 1,
         UserCancelled = 2,
+        FileNotFound = 3,
+        DirectoryNotFound = 4,
     }
 }

Source/v2/Meadow.Cli/Commands/Current/App/AppBuildCommand.cs

@@ -1,4 +1,5 @@
 using CliFx.Attributes;
+using CliFx.Exceptions;
 using Meadow.Package;
 using Microsoft.Extensions.Logging;
 
@@ -23,16 +24,15 @@ public AppBuildCommand(IPackageManager packageManager, ILoggerFactory loggerFact
 
     protected override ValueTask ExecuteCommand()
     {
-        string path = Path ?? AppDomain.CurrentDomain.BaseDirectory;
+        string path = Path ?? Directory.GetCurrentDirectory();
 
         // is the path a file?
         if (!File.Exists(path))
         {
             // is it a valid directory?
             if (!Directory.Exists(path))
             {
-                Logger?.LogError($"Invalid application path '{path}'");
-                return ValueTask.CompletedTask;
+                throw new CommandException($"Invalid application path '{path}'", (int)CommandErrors.FileNotFound);
             }
         }
 
@@ -45,7 +45,7 @@ protected override ValueTask ExecuteCommand()
 
         if (!success)
         {
-            Logger?.LogError($"Build failed!");
+            throw new CommandException($"Build failed.", (int)CommandErrors.GeneralError);
         }
         else
         {

Source/v2/Meadow.Cli/Commands/Current/Cloud/Package/CloudPackageCreateCommand.cs

@@ -1,4 +1,5 @@
 using CliFx.Attributes;
+using CliFx.Exceptions;
 using Meadow.Cloud.Client;
 using Meadow.Cloud.Client.Identity;
 using Meadow.Package;
@@ -42,26 +43,25 @@ public CloudPackageCreateCommand(
 
     protected override async ValueTask ExecuteCommand()
     {
-        ProjectPath ??= AppDomain.CurrentDomain.BaseDirectory;
+        ProjectPath ??= Directory.GetCurrentDirectory();
         ProjectPath = Path.GetFullPath(ProjectPath);
         if (!Directory.Exists(ProjectPath))
         {
-            throw new DirectoryNotFoundException($"Directory not found '{ProjectPath}'. Check path to project file.");
+            throw new CommandException($"Directory not found '{ProjectPath}'. Check path to project file.", (int)CommandErrors.DirectoryNotFound);
         }
 
         // build
         Logger?.LogInformation($"Building {Configuration} version of application...");
         if (!_packageManager.BuildApplication(ProjectPath, Configuration, true, CancellationToken))
         {
-            return;
+            throw new CommandException($"Build failed.", (int)CommandErrors.GeneralError);
         }
 
         var candidates = PackageManager.GetAvailableBuiltConfigurations(ProjectPath, "App.dll");
 
         if (candidates.Length == 0)
         {
-            Logger?.LogError($"Cannot find a compiled application at '{ProjectPath}'");
-            return;
+            throw new CommandException($"Cannot find a compiled application at '{ProjectPath}'", (int)CommandErrors.FileNotFound);
         }
 
         var store = _fileManager.Firmware["Meadow F7"];
@@ -86,7 +86,7 @@ protected override async ValueTask ExecuteCommand()
         }
         else
         {
-            Logger?.LogError($"Package assembly failed.");
+            throw new CommandException($"Package assembly failed.", (int)CommandErrors.GeneralError);
         }
     }
 }

Source/v2/Meadow.Cli/Program.cs

@@ -74,7 +74,7 @@ public static async Task<int> Main(string[] args)
         if (File.Exists("appsettings.json"))
         {
             var config = new ConfigurationBuilder()
-                                   .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
+                                   .SetBasePath(Directory.GetCurrentDirectory())
                                    .AddJsonFile("appsettings.json")
                                    .Build();