[12.x] Add shouldRun() method to Seeder

src/Illuminate/Database/Seeder.php

@@ -47,6 +47,10 @@ public function call($class, $silent = false, array $parameters = [])
         foreach ($classes as $class) {
             $seeder = $this->resolve($class);
 
+            if (! $seeder->shouldRun()) {
+                continue;
+            }
+
             $name = get_class($seeder);
 
             if ($silent === false && isset($this->command)) {
@@ -140,6 +144,16 @@ protected function resolve($class)
         return $instance;
     }
 
+    /**
+     * Determine if this seeder should run.
+     *
+     * @return bool
+     */
+    public function shouldRun(): bool
+    {
+        return true;
+    }
+
     /**
      * Set the IoC container instance.
      *

tests/Database/DatabaseSeederTest.php

@@ -45,11 +45,24 @@ public function testCallResolveTheClassAndCallsRun()
         $container->shouldReceive('make')->once()->with('ClassName')->andReturn($child = m::mock(Seeder::class));
         $child->shouldReceive('setContainer')->once()->with($container)->andReturn($child);
         $child->shouldReceive('setCommand')->once()->with($command)->andReturn($child);
+        $child->shouldReceive('shouldRun')->once()->andReturn(true);
         $child->shouldReceive('__invoke')->once();
 
         $seeder->call('ClassName');
     }
 
+    public function testCallShouldntRun()
+    {
+        $seeder = new TestSeeder;
+        $seeder->setContainer($container = m::mock(Container::class));
+        $container->shouldReceive('make')->once()->with('ClassName')->andReturn($child = m::mock(Seeder::class));
+        $child->shouldReceive('setContainer')->once()->with($container)->andReturn($child);
+        $child->shouldReceive('shouldRun')->once()->andReturn(false);
+        $child->shouldNotReceive('__invoke');
+
+        $seeder->call('ClassName');
+    }
+
     public function testSetContainer()
     {
         $seeder = new TestSeeder;