Validate installer can be installed on selected directory

Signed-off-by: Mior Muhammad Zaki <[email protected]>

src/NewCommand.php

@@ -89,9 +89,19 @@ protected function interact(InputInterface $input, OutputInterface $output)
                 label: 'What is the name of your project?',
                 placeholder: 'E.g. example-app',
                 required: 'The project name is required.',
-                validate: fn ($value) => preg_match('/[^\pL\pN\-_.]/', $value) !== 0
-                    ? 'The name may only contain letters, numbers, dashes, underscores, and periods.'
-                    : null,
+                validate: function ($value) use ($input) {
+                    if (preg_match('/[^\pL\pN\-_.]/', $value) !== 0) {
+                        return 'The name may only contain letters, numbers, dashes, underscores, and periods.';
+                    }
+
+                    if ($input->getOption('force') !== true) {
+                        try {
+                            $this->verifyApplicationDoesntExist($this->getWorkingDirectory($value));
+                        } catch (RuntimeException $e) {
+                            return 'The directory already exists';
+                        }
+                    }
+                },
             ));
         }
 
@@ -144,7 +154,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 
         $name = $input->getArgument('name');
 
-        $directory = $name !== '.' ? getcwd().'/'.$name : '.';
+        $directory = $this->getWorkingDirectory($name);
 
         $this->composer = new Composer(new Filesystem(), $directory);
 
@@ -803,6 +813,17 @@ protected function getVersion(InputInterface $input)
         return '';
     }
 
+    /**
+     * Get the working installation directory.
+     *
+     * @param  string  $name
+     * @return string
+     */
+    protected function getWorkingDirectory(string $name)
+    {
+        return $name !== '.' ? getcwd().'/'.$name : '.';
+    }
+
     /**
      * Get the composer command for the environment.
      *