Create status command for individual supervisors

src/Console/SupervisorStatusCommand.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Laravel\Horizon\Console;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Str;
+use Laravel\Horizon\Contracts\SupervisorRepository;
+use Laravel\Horizon\MasterSupervisor;
+use Symfony\Component\Console\Attribute\AsCommand;
+
+#[AsCommand(name: 'horizon:supervisor-status')]
+class SupervisorStatusCommand extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'horizon:supervisor-status
+                            {name : The name of the supervisor}';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Show the status for a given supervisor';
+
+    /**
+     * Execute the console command.
+     *
+     * @param  \Laravel\Horizon\Contracts\SupervisorRepository  $supervisors
+     * @return void
+     */
+    public function handle(SupervisorRepository $supervisors)
+    {
+        $name = $this->argument('name');
+
+        $supervisorStatus = optional(collect($supervisors->all())->first(function ($supervisor) use ($name) {
+            return Str::startsWith($supervisor->name, MasterSupervisor::basename()) &&
+                   Str::endsWith($supervisor->name, $name);
+        }))->status;
+
+        if (is_null($supervisorStatus)) {
+            $this->components->error('Unable to find a supervisor with this name.');
+
+            return 1;
+        }
+
+        $this->components->info("{$name} is {$supervisorStatus}");
+    }
+}

src/HorizonServiceProvider.php

@@ -115,6 +115,7 @@ protected function registerCommands()
                 Console\PurgeCommand::class,
                 Console\StatusCommand::class,
                 Console\SupervisorCommand::class,
+                Console\SupervisorStatusCommand::class,
                 Console\SupervisorsCommand::class,
                 Console\TerminateCommand::class,
                 Console\TimeoutCommand::class,