wip: use paths instead of names with backwards compatibility

lib/src/commands/create/commands/create_subcommand.dart

@@ -121,24 +121,14 @@ abstract class CreateSubCommand extends Command<int> {
     return Directory(directory);
   }
 
-  /// The project name that the user provided.
-  ///
-  /// Since the project name could be user provided as either:
-  /// 1. A valid package name
-  /// 2. '.', the current working directory (the project assumes the cwd's name)
-  /// this needs to exist to provide a fallback value for [outputDirectory] and
-  /// [projectName].
-  String get _projectName {
+  /// Gets the project name.
+  String get projectName {
     final args = argResults.rest;
-    _validateProjectName(args);
-    return args.first;
+    final name = path.basename(args.first);
+    _validateProjectName([name]);
+    return name;
   }
 
-  /// Gets the project name.
-  String get projectName => _projectName == '.'
-      ? path.basename(Directory.current.path)
-      : _projectName;
-
   /// Gets the description for the project.
   String get projectDescription => argResults['description'] as String? ?? '';
 
@@ -223,12 +213,7 @@ abstract class CreateSubCommand extends Command<int> {
 
     await template.onGenerateComplete(
       logger,
-      Directory(
-        [
-          target.dir.path,
-          if (_projectName != '.') projectName,
-        ].join(Platform.pathSeparator),
-      ),
+      Directory(path.join(target.dir.path, projectName)),
     );
 
     return ExitCode.success.code;