[8.x] New JobRetrying event dispatched (laravel#39097)

* New JobRetrying event dispatched

* Style fixes

* formatitng

Co-authored-by: Taylor Otwell <taylorotwell@gmail.com>

src/Illuminate/Queue/Console/RetryCommand.php

@@ -5,6 +5,7 @@
 use DateTimeInterface;
 use Illuminate\Console\Command;
 use Illuminate\Contracts\Encryption\Encrypter;
+use Illuminate\Queue\Events\JobRetryRequested;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Str;
 use RuntimeException;
@@ -41,6 +42,8 @@ public function handle()
             if (is_null($job)) {
                 $this->error("Unable to find failed job with ID [{$id}].");
             } else {
+                $this->laravel['events']->dispatch(new JobRetryRequested($job));
+
                 $this->retryJob($job);
 
                 $this->info("The failed job [{$id}] has been pushed back onto the queue!");

src/Illuminate/Queue/Events/JobRetryRequested.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Illuminate\Queue\Events;
+
+class JobRetryRequested
+{
+    /**
+     * The job instance.
+     *
+     * @var \stdClass
+     */
+    public $job;
+
+    /**
+     * The decoded job payload.
+     *
+     * @var array|null
+     */
+    protected $payload = null;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param  \stdClass  $job
+     * @return void
+     */
+    public function __construct($job)
+    {
+        $this->job = $job;
+    }
+
+    /**
+     * The job payload.
+     *
+     * @return array
+     */
+    public function payload()
+    {
+        if (is_null($this->payload)) {
+            $this->payload = json_decode($this->job->payload, true);
+        }
+
+        return $this->payload;
+    }
+}