Allow to run tasks on localhost if no host is defined

Author: antonmedv

src/Command/SelectCommand.php

@@ -10,13 +10,15 @@
 use Deployer\Deployer;
 use Deployer\Exception\Exception;
 use Deployer\Host\Host;
+use Deployer\Host\Localhost;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Formatter\OutputFormatterStyle;
 use Symfony\Component\Console\Helper\QuestionHelper;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface as Input;
 use Symfony\Component\Console\Output\OutputInterface as Output;
 use Symfony\Component\Console\Question\ChoiceQuestion;
+use function Deployer\localhost;
 
 abstract class SelectCommand extends Command
 {
@@ -43,7 +45,9 @@ protected function selectHosts(Input $input, Output $output): array
         $selectExpression = is_array($selector) ? implode(',', $selector) : $selector;
 
         if (empty($selectExpression)) {
-            if (count($this->deployer->hosts) === 1) {
+            if (count($this->deployer->hosts) === 0) {
+                $hosts = [localhost(Localhost::extraordinary)];
+            } else if (count($this->deployer->hosts) === 1) {
                 $hosts = $this->deployer->hosts->all();
             } else if ($input->isInteractive()) {
                 $hostsAliases = [];

src/Command/WorkerCommand.php

@@ -14,6 +14,7 @@
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption as Option;
 use Symfony\Component\Console\Output\OutputInterface;
+use function Deployer\localhost;
 
 class WorkerCommand extends MainCommand
 {
@@ -47,8 +48,8 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $task = $this->deployer->tasks->get($input->getOption('task'));
 
         $hostName = $input->getOption('host');
-        if ($hostName === 'local') {
-            $host = new Localhost('local');
+        if ($hostName === Localhost::extraordinary) {
+            $host = localhost(Localhost::extraordinary);
         } else {
             $host = $this->deployer->hosts->get($input->getOption('host'));
             $host->config()->load();

src/Host/Localhost.php

@@ -9,6 +9,8 @@
 
 class Localhost extends Host
 {
+    const extraordinary = '@localhost';
+
     public function __construct(string $hostname = 'localhost')
     {
         parent::__construct($hostname);