optimization install

app/Console/Commands/V2boardInstall.php

@@ -43,10 +43,23 @@ class V2boardInstall extends Command
         if (\File::exists(base_path() . '/.lock')) {
             abort(500, 'V2board 已安装，如需重新安装请删除目录下.lock文件');
         }
-        \Artisan::call('key:generate');
-        sleep(2);
+        if (!\File::exists(base_path() . '/.env')) {
+            if (!copy('/.env.example', '.env')) {
+                abort(500, '复制环境文件失败，请检查目录权限');
+            }
+        }
+        $this->saveToEnv([
+            'APP_KEY' => 'base64:' . base64_encode(Encrypter::generateKey('AES-256-CBC')),
+            'DB_HOST' => $this->ask('请输入数据库地址（默认:localhost）', 'localhost'),
+            'DB_DATABASE' => $this->ask('请输入数据库名'),
+            'DB_USERNAME' => $this->ask('请输入数据库用户名'),
+            'DB_PASSWORD' => $this->ask('请输入数据库密码')
+        ]);
+        \Artisan::call('config:clear');
         \Artisan::call('config:cache');
-        DB::connection()->getPdo();
+        if (!DB::connection()->getPdo()) {
+            abort(500, '数据库连接失败');
+        }
         $file = \File::get(base_path() . '/database/install.sql');
         if (!$file) {
             abort(500, '数据库文件不存在');
@@ -92,4 +105,12 @@ class V2boardInstall extends Command
         $user->is_admin = 1;
         return $user->save();
     }
+
+    private function saveToEnv($data = [])
+    {
+        foreach($data as $key => $value) {
+            set_env_var($key, $value);
+        }
+        return true;
+    }
 }

app/Http/Controllers/Admin/ConfigController.php

@@ -24,6 +24,7 @@ class ConfigController extends Controller
                     'invite_never_expire' => config('v2board.invite_never_expire', 0)
                 ],
                 'site' => [
+                    'save_mode' => (int)config('v2board.save_mode', 0),
                     'stop_register' => (int)config('v2board.stop_register', 0),
                     'email_verify' => (int)config('v2board.email_verify', 0),
                     'app_name' => config('v2board.app_name', 'V2Board'),

app/Http/Requests/Admin/ConfigSave.php

@@ -7,6 +7,7 @@ use Illuminate\Foundation\Http\FormRequest;
 class ConfigSave extends FormRequest
 {
     CONST RULES = [
+        'save_mode' => 'in:0,1',
         'invite_force' => 'in:0,1',
         'invite_commission' => 'integer',
         'invite_gen_limit' => 'integer',