Fix issue laravel#12628 Scheduler no longer runs commands in background

src/Illuminate/Console/Scheduling/Event.php

@@ -63,6 +63,13 @@ class Event
      */
     public $withoutOverlapping = false;
 
+    /**
+     * Indicates if the command should run in background.
+     *
+     * @var bool
+     */
+    public $runInBackground = false;
+
     /**
      * The array of filter callbacks.
      *
@@ -142,7 +149,11 @@ protected function getDefaultOutput()
      */
     public function run(Container $container)
     {
-        $this->runCommandInForeground($container);
+        if (! $this->runInBackground) {
+            $this->runCommandInForeground($container);
+        } else {
+            $this->runCommandInBackground();
+        }
     }
 
     /**
@@ -162,6 +173,18 @@ protected function runCommandInForeground(Container $container)
         $this->callAfterCallbacks($container);
     }
 
+    /**
+     * Run the command in the background.
+     *
+     * @return void
+     */
+    protected function runCommandInBackground()
+    {
+        (new Process(
+            $this->buildCommand(), base_path(), null, null, null
+        ))->run();
+    }
+
     /**
      * Call all of the "before" callbacks for the event.
      *
@@ -637,6 +660,18 @@ public function withoutOverlapping()
         });
     }
 
+    /**
+     * State that the command should run in background.
+     *
+     * @return $this
+     */
+    public function runInBackground()
+    {
+        $this->runInBackground = true;
+
+        return $this;
+    }
+
     /**
      * Register a callback to further filter the schedule.
      *