Throw exception when two plugins use the same name definition

app/Services/PluginManager.php

@@ -7,6 +7,7 @@ use Illuminate\Support\Arr;
 use Illuminate\Support\Collection;
 use App\Events\PluginWasUninstalled;
 use Illuminate\Filesystem\Filesystem;
+use App\Exceptions\PrettyPageException;
 use Illuminate\Contracts\Events\Dispatcher;
 use App\Services\Repositories\OptionRepository;
 use Illuminate\Contracts\Foundation\Application;
@@ -90,6 +91,13 @@ class PluginManager
                 $plugin->setVersion(Arr::get($package, 'version'));
                 $plugin->setEnabled($this->isEnabled($plugin->name));
 
+                if ($plugins->has($plugin->name)) {
+                    throw new PrettyPageException(trans('errors.plugins.duplicate', [
+                        'dir1' => $plugin->getDirname(),
+                        'dir2' => $plugins->get($plugin->name)->getDirname()
+                    ]), 5);
+                }
+
                 $plugins->put($plugin->name, $plugin);
             }
 

resources/lang/en/errors.yml

@@ -11,3 +11,6 @@ exception:
   detail: 'Details: :msg'
   message: |
     Whoops, looks like something went wrong. (enable APP_DEBUG in .env to see details)
+
+plugins:
+  duplicate: The plugin [:dir1] has a duplicated plugin name definition which is same to plugin [:dir2]. Please check your plugins directory, remove one of them or use another name definition.

resources/lang/zh_CN/errors.yml

@@ -12,3 +12,6 @@ exception:
   message: |
     如果您是访客，这说明网站程序出现了一些错误，请您稍后再试或联系站长。
     如果您是站长，请开启 .env 中的 APP_DEBUG 以查看详细信息。
+
+plugins:
+  duplicate: 【插件定义重复】:dir1 目录下的插件与 :dir2 目录下的插件使用了相同的 name 定义并造成了冲突。请检查您的 plugins 目录，移除其中一个插件或者使用不同的 name 属性。