fixes braincrafted#438

DependencyInjection/AsseticConfiguration.php

@@ -106,7 +106,7 @@ protected function buildCssWithLess(array $config)
      */
     protected function buildCssWithSass(array $config)
     {
-        $bootstrapFile = $config['assets_dir'].'/stylesheets/_bootstrap.scss';
+        $bootstrapFile = $config['assets_dir'].'/stylesheets/'.$config['twbs_sass_file'];
         if (true === isset($config['customize']['variables_file']) &&
             null !== $config['customize']['variables_file']) {
             $bootstrapFile = $config['customize']['bootstrap_output'];

DependencyInjection/Configuration.php

@@ -49,6 +49,9 @@ class Configuration implements ConfigurationInterface
     /** @var string */
     const DEFAULT_FONTS_DIR = '%kernel.root_dir%/../web/fonts';
 
+    /** @var string */
+    const DEFAULT_BOOTSTRAP_SASS_FILE = '_bootstrap.scss';
+
     /**
      * {@inheritDoc}
      */
@@ -68,6 +71,9 @@ private function buildConfigTree()
                 ->scalarNode('assets_dir')
                     ->defaultValue(self::DEFAULT_ASSETS_DIR)
                 ->end()
+                ->scalarNode('twbs_sass_file')
+                    ->defaultValue(self::DEFAULT_BOOTSTRAP_SASS_FILE)
+                ->end()
                 ->scalarNode('fontawesome_dir')
                     ->defaultValue(self::DEFAULT_FONTAWESOME_DIR)
                 ->end()

Resources/sass/bootstrap4.scss

@@ -0,0 +1,49 @@
+// Core variables and mixins
+@import "../../../../../../../twbs/bootstrap/scss/variables";
+@import "../../../../../../../twbs/bootstrap/scss/mixins";
+
+// Reset
+@import "../../../../../../../twbs/bootstrap/scss/normalize";
+@import "../../../../../../../twbs/bootstrap/scss/print";
+
+// Core CSS
+@import "../../../../../../../twbs/bootstrap/scss/scaffolding";
+@import "../../../../../../../twbs/bootstrap/scss/type";
+@import "../../../../../../../twbs/bootstrap/scss/code";
+@import "../../../../../../../twbs/bootstrap/scss/grid";
+@import "../../../../../../../twbs/bootstrap/scss/tables";
+@import "../../../../../../../twbs/bootstrap/scss/forms";
+@import "../../../../../../../twbs/bootstrap/scss/buttons";
+
+// Components
+@import "../../../../../../../twbs/bootstrap/scss/component-animations";
+@import "../../../../../../../twbs/bootstrap/scss/glyphicons";
+@import "../../../../../../../twbs/bootstrap/scss/dropdowns";
+@import "../../../../../../../twbs/bootstrap/scss/button-groups";
+@import "../../../../../../../twbs/bootstrap/scss/input-groups";
+@import "../../../../../../../twbs/bootstrap/scss/navs";
+@import "../../../../../../../twbs/bootstrap/scss/navbar";
+@import "../../../../../../../twbs/bootstrap/scss/breadcrumbs";
+@import "../../../../../../../twbs/bootstrap/scss/pagination";
+@import "../../../../../../../twbs/bootstrap/scss/pager";
+@import "../../../../../../../twbs/bootstrap/scss/labels";
+@import "../../../../../../../twbs/bootstrap/scss/badges";
+@import "../../../../../../../twbs/bootstrap/scss/jumbotron";
+@import "../../../../../../../twbs/bootstrap/scss/thumbnails";
+@import "../../../../../../../twbs/bootstrap/scss/alerts";
+@import "../../../../../../../twbs/bootstrap/scss/progress-bars";
+@import "../../../../../../../twbs/bootstrap/scss/media";
+@import "../../../../../../../twbs/bootstrap/scss/list-group";
+@import "../../../../../../../twbs/bootstrap/scss/panels";
+@import "../../../../../../../twbs/bootstrap/scss/wells";
+@import "../../../../../../../twbs/bootstrap/scss/close";
+
+// Components w/ JavaScript
+@import "../../../../../../../twbs/bootstrap/scss/modals";
+@import "../../../../../../../twbs/bootstrap/scss/tooltip";
+@import "../../../../../../../twbs/bootstrap/scss/popovers";
+@import "../../../../../../../twbs/bootstrap/scss/carousel";
+
+// Utility classes
+@import "../../../../../../../twbs/bootstrap/scss/utilities";
+@import "../../../../../../../twbs/bootstrap/scss/responsive-utilities";