diff --git a/core/includes/common.inc b/core/includes/common.inc
index c657cd5..7727a3c 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -13,6 +13,7 @@
 use Drupal\Core\Language\Language;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Yaml\Parser;
 use Drupal\Component\PhpStorage\PhpStorageFactory;
 use Drupal\Component\Utility\MapArray;
 use Drupal\Component\Utility\NestedArray;
@@ -2731,7 +2732,6 @@ function drupal_process_states(&$elements) {
  *   its dependencies could not be added.
  *
  * @see drupal_get_library()
- * @see hook_library_info()
  * @see hook_library_info_alter()
  */
 function drupal_add_library($module, $name, $every_page = NULL) {
@@ -2795,7 +2795,6 @@ function drupal_add_library($module, $name, $every_page = NULL) {
  *   of libraries registered by $module is returned (which may be empty).
  *
  * @see drupal_add_library()
- * @see hook_library_info()
  * @see hook_library_info_alter()
  *
  * @todo The purpose of drupal_get_*() is completely different to other page
@@ -2804,32 +2803,69 @@ function drupal_add_library($module, $name, $every_page = NULL) {
 function drupal_get_library($module, $name = NULL) {
   $libraries = &drupal_static(__FUNCTION__, array());
 
-  if (!isset($libraries[$module])) {
-    // Retrieve all libraries associated with the module.
-    $module_libraries = module_invoke($module, 'library_info');
+  $module_path = drupal_get_path('module', $module);
+  if (in_array($module, array('seven', 'bartik'))) {
+    $module_path = drupal_get_path('theme', $module);
+  }
+  $library_info = $module_path . '/' . $module . '.library.yml';
+
+  if (!isset($libraries[$module]) && file_exists($library_info)) {
+    $parser = new Parser();
+    $module_libraries = $parser->parse(file_get_contents($library_info));
     if (empty($module_libraries)) {
       $module_libraries = array();
     }
-    // Allow modules to alter the module's registered libraries.
     drupal_alter('library_info', $module_libraries, $module);
 
-    foreach ($module_libraries as $key => $data) {
-      if (is_array($data)) {
-        // Add default elements to allow for easier processing.
-        $module_libraries[$key] += array('dependencies' => array(), 'js' => array(), 'css' => array());
-        foreach ($module_libraries[$key]['js'] as $file => $options) {
-          if (is_scalar($options)) {
-            // The JavaScript or CSS file has been specified in shorthand
-            // format, without an array of options. In this case $options is the
-            // filename. Convert the shorthand version and remove the old array
-            // key.
-            unset($module_libraries[$key]['js'][$file]);
-            $file = $options;
-            $options = array();
+    foreach ($module_libraries as $lib_name => $library) {
+      $new_library = array('dependencies' => array(), 'js' => array(), 'css' => array());
+      $library += $new_library;
+      $new_library['version'] = $library['version'];
+      if (isset($library['version']) && $library['version'] === 'VERSION') {
+        $new_library['version'] = \Drupal::VERSION;
+      }
+      foreach (array('js', 'css') as $type) {
+        foreach ($library[$type] as $file) {
+          $file['version'] = $new_library['version'];
+
+          if (!empty($file['file'])) {
+            $file['data'] = $module_path . '/' . $file['file'];
+            $file['type'] = 'file';
+            unset($file['file']);
+          }
+          // @todo fix #1473066 or #1663622 to get rid of this.
+          elseif (!empty($file['misc'])) {
+            $file['data'] = 'core/misc/' . $file['misc'];
+            $file['type'] = 'file';
+            unset($file['misc']);
+          }
+          elseif (!empty($file['asset'])) {
+            $file['data'] = 'core/assets/vendor/' . $file['asset'];
+            $file['type'] = 'file';
+            unset($file['asset']);
           }
-          $module_libraries[$key]['js'][$file]['version'] = $module_libraries[$key]['version'];
+          elseif (!empty($file['external'])) {
+            $file['data'] = $file['external'];
+            $file['type'] = 'external';
+            unset($file['external']);
+          }
+          elseif (isset($file['settings'])) {
+            $file['data'] = $file['settings'];
+            $file['type'] = 'setting';
+            unset($file['settings']);
+          }
+          $new_library[$type][] = $file;
         }
       }
+      $new_library['dependencies'] = $library['dependencies'];
+
+      // @todo replace all uses of #attached and remove this.
+      foreach ($new_library['dependencies'] as $i => $dep) {
+        if (!is_array($dep)) {
+          $new_library['dependencies'][$i] = explode('/', $dep);
+        }
+      }
+      $module_libraries[$lib_name] = $new_library;
     }
     $libraries[$module] = $module_libraries;
   }
@@ -3942,7 +3978,6 @@ function drupal_render(&$elements, $is_recursive_call = FALSE) {
       else {
         $wrapper_hook = $value;
       }
-
       $elements['#children'] = theme($wrapper_hook, $wrapper_elements);
     }
   }
@@ -3974,7 +4009,6 @@ function drupal_render(&$elements, $is_recursive_call = FALSE) {
 
     drupal_render_cache_set($elements['#markup'], $elements);
   }
-
   // Only when we're not in a recursive drupal_render() call,
   // #post_render_cache callbacks must be executed, to prevent breaking the
   // render cache in case of nested elements with #cache set.
diff --git a/core/modules/block/block.library.yml b/core/modules/block/block.library.yml
new file mode 100644
index 0000000..796e351
--- /dev/null
+++ b/core/modules/block/block.library.yml
@@ -0,0 +1,16 @@
+drupal.block:
+  version: VERSION
+  js:
+    - { file: block.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+drupal.block.admin:
+  version: VERSION
+  js:
+    - { file: js/block.admin.js }
+  css:
+    - { file: css/block.admin.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
diff --git a/core/modules/block/block.module b/core/modules/block/block.module
index 331e985..7440714 100644
--- a/core/modules/block/block.module
+++ b/core/modules/block/block.module
@@ -587,36 +587,3 @@ function block_language_delete($language) {
     }
   }
 }
-
-/**
- * Implements hook_library_info().
- */
-function block_library_info() {
-  $libraries['drupal.block'] = array(
-    'title' => 'Block',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'block') . '/block.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-  $libraries['drupal.block.admin'] = array(
-    'title' => 'Block admin',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'block') . '/js/block.admin.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'block') . '/css/block.admin.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/book/book.library.yml b/core/modules/book/book.library.yml
new file mode 100644
index 0000000..1bd4b2d
--- /dev/null
+++ b/core/modules/book/book.library.yml
@@ -0,0 +1,8 @@
+drupal.book:
+  version: VERSION
+  js:
+    - { file: book.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.form
diff --git a/core/modules/book/book.module b/core/modules/book/book.module
index 21f9bb0..889a318 100644
--- a/core/modules/book/book.module
+++ b/core/modules/book/book.module
@@ -924,23 +924,3 @@ function book_menu_subtree_data($link) {
 
   return $tree[$cid];
 }
-
-/**
- * Implements hook_library_info().
- */
-function book_library_info() {
-  $libraries['drupal.book'] = array(
-    'title' => 'Book',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'book') . '/book.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.form'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/ckeditor/ckeditor.library.yml b/core/modules/ckeditor/ckeditor.library.yml
new file mode 100644
index 0000000..a6be285
--- /dev/null
+++ b/core/modules/ckeditor/ckeditor.library.yml
@@ -0,0 +1,64 @@
+drupal.ckeditor:
+  version: VERSION
+  js:
+    - { file: js/ckeditor.js }
+    - { settings: { ckeditor: { modulePath: core/modules/ckeditor } } }
+  css:
+    - { file: css/ckeditor.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.debounce
+    - ckeditor/ckeditor
+    - editor/drupal.editor
+drupal.ckeditor.admin:
+  version: VERSION
+  js:
+    - { file: js/ckeditor.admin.js }
+  css:
+    - { file: css/ckeditor.admin.css }
+    - { asset: ckeditor/skins/moono/editor.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+    - system/jquery.ui.sortable
+    - system/jquery.ui.draggable
+    - system/jquery.ui.touch-punch
+    - system/backbone
+    - system/drupal.dialog
+    - system/drupal.announce
+    - ckeditor/ckeditor
+    - editor/drupal.editor.admin
+    - system/drupal.vertical-tabs
+drupal.ckeditor.drupalimage.admin:
+  version: VERSION
+  js:
+    - { file: js/ckeditor.drupalimage.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+    - system/drupal.vertical-tabs
+    - system/drupalSettings
+drupal.ckeditor.stylescombo.admin:
+  version: VERSION
+  js:
+    - { file: js/ckeditor.stylescombo.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+    - system/drupal.vertical-tabs
+    - system/drupalSettings
+drupal.ckeditor.drupalimagecaption-theme:
+  version: VERSION
+  js:
+    - { file: js/plugins/drupalimagecaption/theme.js }
+  dependencies:
+    - ckeditor/ckeditor
+ckeditor:
+  version: VERSION
+  js:
+    - { asset: ckeditor/ckeditor.js, preprocess: false }
diff --git a/core/modules/ckeditor/ckeditor.module b/core/modules/ckeditor/ckeditor.module
index a33ecf2..10d5376 100644
--- a/core/modules/ckeditor/ckeditor.module
+++ b/core/modules/ckeditor/ckeditor.module
@@ -32,114 +32,6 @@ function ckeditor_help($path, $arg) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function ckeditor_library_info() {
-  $module_path = drupal_get_path('module', 'ckeditor');
-
-  $settings = array(
-    'ckeditor' => array(
-      'modulePath' => drupal_get_path('module', 'ckeditor'),
-    ),
-  );
-  $libraries['drupal.ckeditor'] = array(
-    'title' => 'Drupal behavior to enable CKEditor on textareas.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $module_path . '/js/ckeditor.js' => array(),
-      array('data' => $settings, 'type' => 'setting'),
-    ),
-    'css' => array(
-      $module_path . '/css/ckeditor.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.debounce'),
-      array('ckeditor', 'ckeditor'),
-      array('editor', 'drupal.editor'),
-    ),
-  );
-  $libraries['drupal.ckeditor.admin'] = array(
-    'title' => 'Drupal behavior for drag-and-drop CKEditor toolbar builder UI.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $module_path . '/js/ckeditor.admin.js' => array(),
-    ),
-    'css' => array(
-      $module_path . '/css/ckeditor.admin.css' => array(),
-      'core/assets/vendor/ckeditor/skins/moono/editor.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-      array('system', 'jquery.ui.sortable'),
-      array('system', 'jquery.ui.draggable'),
-      array('system', 'jquery.ui.touch-punch'),
-      array('system', 'backbone'),
-      array('system', 'drupal.dialog'),
-      array('system', 'drupal.announce'),
-      array('ckeditor', 'ckeditor'),
-      array('editor', 'drupal.editor.admin'),
-      // Depend on Vertical Tabs, so that Vertical Tabs' JavaScript is executed
-      // first, which ensures its behavior runs first.
-      array('system', 'drupal.vertical-tabs'),
-    ),
-  );
-  $libraries['drupal.ckeditor.drupalimage.admin'] = array(
-    'title' => 'Only show the "drupalimage" plugin settings when its button is enabled.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $module_path . '/js/ckeditor.drupalimage.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.vertical-tabs'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-  $libraries['drupal.ckeditor.stylescombo.admin'] = array(
-    'title' => 'Only show the "stylescombo" plugin settings when its button is enabled.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $module_path . '/js/ckeditor.stylescombo.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.vertical-tabs'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-  $libraries['drupal.ckeditor.drupalimagecaption-theme'] = array(
-    'title' => 'Theming support for the imagecaption plugin.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $module_path . '/js/plugins/drupalimagecaption/theme.js' => array(),
-    ),
-    'dependencies' => array(
-      array('ckeditor', 'ckeditor'),
-    ),
-  );
-  $libraries['ckeditor'] = array(
-    'title' => 'Loads the main CKEditor library.',
-    'version' => '4.3-dev — d8-imagecaption branch commit 887d81ac1824008b690e439a1b29eb4f13b51212',
-    'js' => array(
-      'core/assets/vendor/ckeditor/ckeditor.js' => array(
-        'preprocess' => FALSE,
-      ),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_theme().
  */
 function ckeditor_theme() {
diff --git a/core/modules/color/color.library.yml b/core/modules/color/color.library.yml
new file mode 100644
index 0000000..bbaf686
--- /dev/null
+++ b/core/modules/color/color.library.yml
@@ -0,0 +1,19 @@
+drupal.color:
+  version: VERSION
+  js:
+    - { file: color.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+    - system/jquery.farbtastic
+    - color/drupal.color.preview
+drupal.color.preview:
+  version: VERSION
+  js:
+    - { file: preview.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
diff --git a/core/modules/color/color.module b/core/modules/color/color.module
index c585de8..63866e8 100644
--- a/core/modules/color/color.module
+++ b/core/modules/color/color.module
@@ -773,38 +773,3 @@ function _color_rgb2hsl($rgb) {
 
   return array($h, $s, $l);
 }
-
-/**
- * Implements hook_library_info().
- */
-function color_library_info() {
-  $libraries['drupal.color'] = array(
-    'title' => 'Color',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'color') . '/color.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-      array('system', 'jquery.farbtastic'),
-      array('color', 'drupal.color.preview'),
-    ),
-  );
-  $libraries['drupal.color.preview'] = array(
-    'title' => 'Color preview',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'color') . '/preview.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/comment/comment.library.yml b/core/modules/comment/comment.library.yml
new file mode 100644
index 0000000..ea3d01d
--- /dev/null
+++ b/core/modules/comment/comment.library.yml
@@ -0,0 +1,33 @@
+drupal.comment:
+  version: VERSION
+  js:
+    - { file: comment-entity-form.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.form
+drupal.comment-by-viewer:
+  version: VERSION
+  js:
+    - { file: js/comment-by-viewer.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+drupal.comment-new-indicator:
+  version: VERSION
+  js:
+    - { file: js/comment-new-indicator.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - history/drupal.history
+    - system/drupal.displace
+drupal.node-new-comments-link:
+  version: VERSION
+  js:
+    - { file: js/node-new-comments-link.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - history/drupal.history
diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index 6fcbc2b..1f438ef 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -1674,60 +1674,3 @@ function comment_file_download_access($field, EntityInterface $entity, FileInter
     return FALSE;
   }
 }
-
-/**
- * Implements hook_library_info().
- */
-function comment_library_info() {
-  $path = drupal_get_path('module', 'comment');
-  $libraries['drupal.comment'] = array(
-    'title' => 'Comment',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/comment-entity-form.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.form'),
-    ),
-  );
-  $libraries['drupal.comment-by-viewer'] = array(
-    'title' => 'Annotate comments by the current viewer for targeted styling',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/comment-by-viewer.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-  $libraries['drupal.comment-new-indicator'] = array(
-    'title' => 'New comment indicator',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/comment-new-indicator.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('history', 'drupal.history'),
-      array('system', 'drupal.displace'),
-    ),
-  );
-  $libraries['drupal.node-new-comments-link'] = array(
-    'title' => 'New comments link',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/node-new-comments-link.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('history', 'drupal.history'),
-    ),
-  );
-  return $libraries;
-}
diff --git a/core/modules/config_translation/config_translation.library.yml b/core/modules/config_translation/config_translation.library.yml
new file mode 100644
index 0000000..aefcbda
--- /dev/null
+++ b/core/modules/config_translation/config_translation.library.yml
@@ -0,0 +1,4 @@
+drupal.config_translation.admin:
+  version: VERSION
+  css:
+    - { file: css/config_translation.admin.css }
diff --git a/core/modules/config_translation/config_translation.module b/core/modules/config_translation/config_translation.module
index 0fc1170..8718423 100644
--- a/core/modules/config_translation/config_translation.module
+++ b/core/modules/config_translation/config_translation.module
@@ -163,20 +163,6 @@ function config_translation_config_translation_type_info_alter(&$definitions) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function config_translation_library_info() {
-  $libraries['drupal.config_translation.admin'] = array(
-    'title' => 'Configuration translation admin',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      drupal_get_path('module', 'config_translation') . '/css/config_translation.admin.css' => array(),
-    ),
-  );
-  return $libraries;
-}
-
-/**
  * Implements hook_local_tasks_alter().
  */
 function config_translation_local_tasks_alter(&$local_tasks) {
diff --git a/core/modules/content_translation/content_translation.library.yml b/core/modules/content_translation/content_translation.library.yml
new file mode 100644
index 0000000..5e59d3e
--- /dev/null
+++ b/core/modules/content_translation/content_translation.library.yml
@@ -0,0 +1,10 @@
+drupal.content_translation.admin:
+  version: VERSION
+  js:
+    - { file: content_translation.admin.js }
+  css:
+    - { file: css/content_translation.admin.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
diff --git a/core/modules/content_translation/content_translation.module b/core/modules/content_translation/content_translation.module
index 1454bd8..0680c97 100644
--- a/core/modules/content_translation/content_translation.module
+++ b/core/modules/content_translation/content_translation.module
@@ -401,30 +401,6 @@ function content_translation_delete_access(EntityInterface $entity, Language $la
 }
 
 /**
- * Implements hook_library_info().
- */
-function content_translation_library_info() {
-  $path = drupal_get_path('module', 'content_translation');
-  $libraries['drupal.content_translation.admin'] = array(
-    'title' => 'Content translation UI',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/content_translation.admin.js' => array(),
-    ),
-    'css' => array(
-      $path . '/css/content_translation.admin.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Returns the key name used to store the configuration setting.
  *
  * Based on the entity type and bundle, the keys used to store configuration
diff --git a/core/modules/contextual/contextual.library.yml b/core/modules/contextual/contextual.library.yml
new file mode 100644
index 0000000..d8c2d0e
--- /dev/null
+++ b/core/modules/contextual/contextual.library.yml
@@ -0,0 +1,28 @@
+drupal.contextual-links:
+  version: VERSION
+  js:
+    - { file: js/contextual.js, group: -100, weight: -2 }
+  css:
+    - { file: css/contextual.module.css }
+    - { file: css/contextual.theme.css }
+    - { file: css/contextual.icons.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/backbone
+    - system/modernizr
+    - system/jquery.once
+drupal.contextual-toolbar:
+  version: VERSION
+  js:
+    - { file: js/contextual.toolbar.js, group: -100 }
+  css:
+    - { file: css/contextual.toolbar.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/backbone
+    - system/jquery.once
+    - system/drupal.tabbingmanager
+    - system/drupal.announce
diff --git a/core/modules/contextual/contextual.module b/core/modules/contextual/contextual.module
index d9d20b5..3aa1ebc 100644
--- a/core/modules/contextual/contextual.module
+++ b/core/modules/contextual/contextual.module
@@ -105,56 +105,6 @@ function contextual_permission() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function contextual_library_info() {
-  $path = drupal_get_path('module', 'contextual');
-  $libraries['drupal.contextual-links'] = array(
-    'title' => 'Contextual Links',
-    'website' => 'http://drupal.org/node/473268',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      // Add the JavaScript, with a group and weight such that it will run
-      // before modules/contextual/js/contextual.toolbar.js.
-      $path . '/js/contextual.js' => array('group' => JS_LIBRARY, 'weight' => -2),
-    ),
-    'css' => array(
-      $path . '/css/contextual.module.css' => array(),
-      $path . '/css/contextual.theme.css' => array(),
-      $path . '/css/contextual.icons.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'backbone'),
-      array('system', 'modernizr'),
-      array('system', 'jquery.once'),
-    ),
-  );
-  $libraries['drupal.contextual-toolbar'] = array(
-    'title' => 'Contextual Links Toolbar Tab',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/contextual.toolbar.js' => array('group' => JS_LIBRARY),
-    ),
-    'css' => array(
-      $path . '/css/contextual.toolbar.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'backbone'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.tabbingmanager'),
-      array('system', 'drupal.announce'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_element_info().
  */
 function contextual_element_info() {
diff --git a/core/modules/edit/edit.library.yml b/core/modules/edit/edit.library.yml
new file mode 100644
index 0000000..db9c3a3
--- /dev/null
+++ b/core/modules/edit/edit.library.yml
@@ -0,0 +1,46 @@
+edit:
+  version: VERSION
+  js:
+    - { file: js/edit.js, scope: footer }
+    - { file: js/models/AppModel.js, scope: footer }
+    - { file: js/models/EntityModel.js, scope: footer }
+    - { file: js/models/FieldModel.js, scope: footer }
+    - { file: js/models/EditorModel.js, scope: footer }
+    - { file: js/views/AppView.js, scope: footer }
+    - { file: js/views/EditorDecorationView.js, scope: footer }
+    - { file: js/views/EntityDecorationView.js, scope: footer }
+    - { file: js/views/EntityToolbarView.js, scope: footer }
+    - { file: js/views/ContextualLinkView.js, scope: footer }
+    - { file: js/views/FieldToolbarView.js, scope: footer }
+    - { file: js/views/EditorView.js, scope: footer }
+    - { file: js/util.js, scope: footer }
+    - { file: js/theme.js, scope: footer }
+  css:
+    - { file: css/edit.module.css }
+    - { file: css/edit.theme.css }
+    - { file: css/edit.icons.css }
+  dependencies:
+    - system/jquery
+    - system/underscore
+    - system/backbone
+    - system/jquery.form
+    - system/jquery.ui.position
+    - system/drupal
+    - system/drupal.displace
+    - system/drupal.form
+    - system/drupal.ajax
+    - system/drupal.debounce
+    - system/drupalSettings
+    - system/drupal.dialog
+edit.inPlaceEditor.form:
+  version: VERSION
+  js:
+    - { file: js/editors/formEditor.js, scope: footer }
+  dependencies:
+    - edit/edit
+edit.inPlaceEditor.plainText:
+  version: VERSION
+  js:
+    - { file: js/editors/plainTextEditor.js, scope: footer }
+  dependencies:
+    - edit/edit
diff --git a/core/modules/edit/edit.module b/core/modules/edit/edit.module
index d72e0d1..8cec1fd 100644
--- a/core/modules/edit/edit.module
+++ b/core/modules/edit/edit.module
@@ -63,81 +63,6 @@ function edit_page_build(&$page) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function edit_library_info() {
-  $path = drupal_get_path('module', 'edit');
-  $options = array(
-    'scope' => 'footer',
-  );
-  $libraries['edit'] = array(
-    'title' => 'Edit: in-place editing',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      // Core.
-      $path . '/js/edit.js' => $options,
-      // Models.
-      $path . '/js/models/AppModel.js' => $options,
-      $path . '/js/models/EntityModel.js' => $options,
-      $path . '/js/models/FieldModel.js' => $options,
-      $path . '/js/models/EditorModel.js' => $options,
-      // Views.
-      $path . '/js/views/AppView.js' => $options,
-      $path . '/js/views/EditorDecorationView.js' => $options,
-      $path . '/js/views/EntityDecorationView.js' => $options,
-      $path . '/js/views/EntityToolbarView.js' => $options,
-      $path . '/js/views/ContextualLinkView.js' => $options,
-      $path . '/js/views/FieldToolbarView.js' => $options,
-      $path . '/js/views/EditorView.js' => $options,
-      // Other.
-      $path . '/js/util.js' => $options,
-      $path . '/js/theme.js' => $options,
-    ),
-    'css' => array(
-      $path . '/css/edit.module.css' => array(),
-      $path . '/css/edit.theme.css' => array(),
-      $path . '/css/edit.icons.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'underscore'),
-      array('system', 'backbone'),
-      array('system', 'jquery.form'),
-      array('system', 'jquery.ui.position'),
-      array('system', 'drupal'),
-      array('system', 'drupal.displace'),
-      array('system', 'drupal.form'),
-      array('system', 'drupal.ajax'),
-      array('system', 'drupal.debounce'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.dialog'),
-    ),
-  );
-  $libraries['edit.inPlaceEditor.form'] = array(
-    'title' => 'Form in-place editor',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/editors/formEditor.js' => $options,
-    ),
-    'dependencies' => array(
-      array('edit', 'edit'),
-    ),
-  );
-  $libraries['edit.inPlaceEditor.plainText'] = array(
-    'title' => 'Plain text in-place editor',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/editors/plainTextEditor.js' => $options,
-    ),
-    'dependencies' => array(
-      array('edit', 'edit'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implement hook_library_info_alter().
  *
  * Allow the admin theme to override the Edit entity toolbar's default styling.
@@ -147,8 +72,8 @@ function edit_library_info() {
 function edit_library_info_alter(&$libraries, $module) {
   if ($module == 'edit' && isset($libraries['edit'])) {
     $css = _edit_theme_css();
-    foreach ($css as $css_file) {
-      $libraries['edit']['css'][$css_file] = array();
+    foreach ($css as $css_file => $file) {
+      $libraries['edit']['css'][$css_file] = $file;
     }
   }
 }
@@ -230,7 +155,7 @@ function _edit_theme_css($theme = NULL) {
     if (isset($info['edit_stylesheets'])) {
       $css = $info['edit_stylesheets'];
       foreach ($css as $key => $path) {
-        $css[$key] = $theme_path . '/' . $path;
+        $css[$key] = array('data' => $theme_path . '/' . $path, 'type' => 'file');
       }
     }
     if (isset($info['base theme'])) {
diff --git a/core/modules/editor/editor.library.yml b/core/modules/editor/editor.library.yml
new file mode 100644
index 0000000..443e83a
--- /dev/null
+++ b/core/modules/editor/editor.library.yml
@@ -0,0 +1,37 @@
+drupal.editor.admin:
+  version: VERSION
+  js:
+    - { file: js/editor.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+drupal.editor:
+  version: VERSION
+  js:
+    - { file: js/editor.js }
+  css:
+    - { file: css/editor.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+drupal.editor.dialog:
+  version: VERSION
+  js:
+    - { file: js/editor.dialog.js, weight: 2 }
+  dependencies:
+    - system/jquery
+    - system/drupal.dialog
+    - system/drupal.ajax
+    - system/drupalSettings
+edit.inPlaceEditor.formattedText:
+  version: VERSION
+  js:
+    - { file: js/editor.formattedTextEditor.js, scope: footer, attributes: { defer: true } }
+    - { settings: { editor: { getUntransformedTextURL: /drupal8/lib.php/editor/%21entity_type/%21id/%21field_name/%21langcode/%21view_mode } } }
+  dependencies:
+    - edit/edit
+    - editor/drupal.editor
+    - system/drupal.ajax
+    - system/drupalSettings
diff --git a/core/modules/editor/editor.module b/core/modules/editor/editor.module
index 5684ad0..3bd9cf1 100644
--- a/core/modules/editor/editor.module
+++ b/core/modules/editor/editor.module
@@ -64,82 +64,6 @@ function editor_element_info() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function editor_library_info() {
-  $path = drupal_get_path('module', 'editor');
-
-  $libraries['drupal.editor.admin'] = array(
-    'title' => 'Text Editor',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/editor.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-  $libraries['drupal.editor'] = array(
-    'title' => 'Text Editor',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/editor.js' => array(),
-    ),
-    'css' => array(
-      $path . '/css/editor.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  $libraries['drupal.editor.dialog'] = array(
-    'title' => 'Text Editor Dialog',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/editor.dialog.js' => array('weight' => 2),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal.dialog'),
-      array('system', 'drupal.ajax'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  $libraries['edit.inPlaceEditor.formattedText'] = array(
-    'title' => 'Formatted text in-place editor',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/editor.formattedTextEditor.js' => array(
-        'scope' => 'footer',
-        'attributes' => array('defer' => TRUE),
-      ),
-      array(
-        'type' => 'setting',
-        'data' => array(
-          'editor' => array(
-            'getUntransformedTextURL' => url('editor/!entity_type/!id/!field_name/!langcode/!view_mode'),
-          )
-        )
-      ),
-    ),
-    'dependencies' => array(
-      array('edit', 'edit'),
-      array('editor', 'drupal.editor'),
-      array('system', 'drupal.ajax'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_menu().
  */
 function editor_menu() {
diff --git a/core/modules/field_ui/field_ui.library.yml b/core/modules/field_ui/field_ui.library.yml
new file mode 100644
index 0000000..6b2eba7
--- /dev/null
+++ b/core/modules/field_ui/field_ui.library.yml
@@ -0,0 +1,11 @@
+drupal.field_ui:
+  version: VERSION
+  js:
+    - { file: field_ui.js }
+  css:
+    - { file: css/field_ui.admin.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
diff --git a/core/modules/field_ui/field_ui.module b/core/modules/field_ui/field_ui.module
index 2033cf6..f115d7e 100644
--- a/core/modules/field_ui/field_ui.module
+++ b/core/modules/field_ui/field_ui.module
@@ -254,30 +254,6 @@ function field_ui_form_node_type_form_submit($form, &$form_state) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function field_ui_library_info() {
-  $libraries['drupal.field_ui'] = array(
-    'title' => 'Field UI',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'field_ui') . '/field_ui.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'field_ui') . '/css/field_ui.admin.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_view_mode_presave().
  */
 function field_ui_view_mode_presave(EntityViewModeInterface $view_mode) {
diff --git a/core/modules/file/file.library.yml b/core/modules/file/file.library.yml
new file mode 100644
index 0000000..f92d365
--- /dev/null
+++ b/core/modules/file/file.library.yml
@@ -0,0 +1,10 @@
+drupal.file:
+  version: VERSION
+  js:
+    - { file: file.js }
+  css:
+    - { file: css/file.admin.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
diff --git a/core/modules/file/file.module b/core/modules/file/file.module
index 85d9e94..14e1ae6 100644
--- a/core/modules/file/file.module
+++ b/core/modules/file/file.module
@@ -1930,29 +1930,6 @@ function file_get_file_references(File $file, $field = NULL, $age = EntityStorag
  */
 
 /**
- * Implements hook_library_info().
- */
-function file_library_info() {
-  $libraries['drupal.file'] = array(
-    'title' => 'File',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'file') . '/file.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'file') . '/css/file.admin.css'
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_permission().
  */
 function file_permission() {
diff --git a/core/modules/filter/filter.library.yml b/core/modules/filter/filter.library.yml
new file mode 100644
index 0000000..28b2b5a
--- /dev/null
+++ b/core/modules/filter/filter.library.yml
@@ -0,0 +1,33 @@
+drupal.filter.admin:
+  version: VERSION
+  js:
+    - { file: filter.admin.js }
+  css:
+    - { file: css/filter.admin.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+    - system/drupal.form
+drupal.filter.filter_html.admin:
+  version: VERSION
+  js:
+    - { file: filter.filter_html.admin.js }
+  dependencies:
+    - system/jquery
+    - system/jquery.once
+    - system/underscore
+drupal.filter:
+  version: VERSION
+  js:
+    - { file: filter.js }
+  css:
+    - { file: css/filter.admin.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+caption:
+  version: VERSION
+  css:
+    - { file: css/filter.caption.css }
diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index 922688d..1a20844 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -1442,63 +1442,3 @@ function theme_filter_html_image_secure_image(&$variables) {
 function filter_page_build(&$page) {
   $page['#attached']['library'][] = array('filter', 'caption');
 }
-
-/**
- * Implements hook_library_info().
- */
-function filter_library_info() {
-  $path = drupal_get_path('module', 'filter');
-
-  $libraries['drupal.filter.admin'] = array(
-    'title' => 'Filter',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/filter.admin.js' => array(),
-    ),
-    'css' => array(
-      $path . '/css/filter.admin.css'
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.form'),
-    ),
-  );
-  $libraries['drupal.filter.filter_html.admin'] = array(
-    'title' => 'Automatic "Limit allowed HTML tags" filter setting updating.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/filter.filter_html.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'jquery.once'),
-      array('system', 'underscore'),
-    ),
-  );
-  $libraries['drupal.filter'] = array(
-    'title' => 'Filter',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/filter.js' => array(),
-    ),
-    'css' => array(
-      $path . '/css/filter.admin.css'
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-  $libraries['caption'] = array(
-    'title' => 'Captions for images and alignments',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      $path . '/css/filter.caption.css',
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/forum/forum.library.yml b/core/modules/forum/forum.library.yml
new file mode 100644
index 0000000..45e5ebf
--- /dev/null
+++ b/core/modules/forum/forum.library.yml
@@ -0,0 +1,4 @@
+forum.index:
+  version: VERSION
+  css:
+    - { file: css/forum.module.css }
diff --git a/core/modules/forum/forum.module b/core/modules/forum/forum.module
index 29decd5..7efd222 100644
--- a/core/modules/forum/forum.module
+++ b/core/modules/forum/forum.module
@@ -876,20 +876,3 @@ function template_preprocess_forum_submitted(&$variables) {
 function theme_forum_form(array $variables) {
   return drupal_render_children($variables['form']);
 }
-
-/**
- * Implements hook_library_info().
- *
- * Forum specific libraries.
- */
-function forum_library_info() {
-  $libraries['forum.index'] = array(
-    'title' => 'Forum index',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      drupal_get_path('module', 'forum') . '/css/forum.module.css' => array(),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/history/history.library.yml b/core/modules/history/history.library.yml
new file mode 100644
index 0000000..53c7e73
--- /dev/null
+++ b/core/modules/history/history.library.yml
@@ -0,0 +1,9 @@
+drupal.history:
+  version: VERSION
+  js:
+    - { file: js/history.js }
+  dependencies:
+    - system/jquery
+    - system/drupalSettings
+    - system/drupal
+    - system/drupal.ajax
diff --git a/core/modules/history/history.module b/core/modules/history/history.module
index 0dfad16..2099a25 100644
--- a/core/modules/history/history.module
+++ b/core/modules/history/history.module
@@ -183,24 +183,3 @@ function history_user_delete($account) {
     ->condition('uid', $account->id())
     ->execute();
 }
-
-/**
- * Implements hook_library_info().
- */
-function history_library_info() {
-  $libraries['drupal.history'] = array(
-    'title' => 'History',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'history') . '/js/history.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal'),
-      array('system', 'drupal.ajax'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/language/language.library.yml b/core/modules/language/language.library.yml
new file mode 100644
index 0000000..a598371
--- /dev/null
+++ b/core/modules/language/language.library.yml
@@ -0,0 +1,8 @@
+language.admin:
+  version: VERSION
+  js:
+    - { file: language.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
diff --git a/core/modules/language/language.module b/core/modules/language/language.module
index b0dd216..c4c3a81 100644
--- a/core/modules/language/language.module
+++ b/core/modules/language/language.module
@@ -535,26 +535,6 @@ function language_delete($langcode) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function language_library_info() {
-  $libraries['language.admin'] = array(
-    'title' => 'Language detection admin',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'language') . '/language.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_language_types_info().
  *
  * Defines the three core language types:
diff --git a/core/modules/locale/locale.library.yml b/core/modules/locale/locale.library.yml
new file mode 100644
index 0000000..d8bff21
--- /dev/null
+++ b/core/modules/locale/locale.library.yml
@@ -0,0 +1,16 @@
+drupal.locale.admin:
+  version: VERSION
+  js:
+    - { file: locale.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+drupal.locale.datepicker:
+  version: VERSION
+  js:
+    - { file: locale.datepicker.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
diff --git a/core/modules/locale/locale.module b/core/modules/locale/locale.module
index e9b539c..17591ec 100644
--- a/core/modules/locale/locale.module
+++ b/core/modules/locale/locale.module
@@ -631,38 +631,6 @@ function locale_js_translate(array $files = array()) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function locale_library_info() {
-  $libraries['drupal.locale.admin'] = array(
-    'title' => 'Locale',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'locale') . '/locale.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-  $libraries['drupal.locale.datepicker'] = array(
-    'title' => 'Locale Datepicker UI',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'locale') . '/locale.datepicker.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implement hook_library_info_alter().
  *
  * Provides the language support for the jQuery UI Date Picker.
diff --git a/core/modules/menu/menu.library.yml b/core/modules/menu/menu.library.yml
new file mode 100644
index 0000000..349aa0a
--- /dev/null
+++ b/core/modules/menu/menu.library.yml
@@ -0,0 +1,15 @@
+drupal.menu:
+  version: VERSION
+  js:
+    - { file: menu.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.form
+drupal.menu.admin:
+  version: VERSION
+  js:
+    - { file: menu.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
diff --git a/core/modules/menu/menu.module b/core/modules/menu/menu.module
index fc149ee..56f490a 100644
--- a/core/modules/menu/menu.module
+++ b/core/modules/menu/menu.module
@@ -697,34 +697,3 @@ function menu_preprocess_block(&$variables) {
     $variables['attributes']['role'] = 'navigation';
   }
 }
-
-/**
- * Implements hook_library_info().
- */
-function menu_library_info() {
-  $libraries['drupal.menu'] = array(
-    'title' => 'Menu',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'menu') . '/menu.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.form'),
-    ),
-  );
-  $libraries['drupal.menu.admin'] = array(
-    'title' => 'Menu admin',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'menu') . '/menu.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/node/node.library.yml b/core/modules/node/node.library.yml
new file mode 100644
index 0000000..9087106
--- /dev/null
+++ b/core/modules/node/node.library.yml
@@ -0,0 +1,24 @@
+drupal.node:
+  version: VERSION
+  js:
+    - { file: node.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.form
+drupal.node.preview:
+  version: VERSION
+  js:
+    - { file: node.preview.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+drupal.content_types:
+  version: VERSION
+  js:
+    - { file: content_types.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.form
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index a860f3f..1792ea8 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -2008,50 +2008,6 @@ function node_language_delete($language) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function node_library_info() {
-  $libraries['drupal.node'] = array(
-    'title' => 'Node',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'node') . '/node.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.form'),
-    ),
-  );
-  $libraries['drupal.node.preview'] = array(
-    'title' => 'Node preview',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'node') . '/node.preview.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-  $libraries['drupal.content_types'] = array(
-    'title' => 'Content types',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'node') . '/content_types.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.form'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Marks a node to be re-indexed by the node_search plugin.
  *
  * @param int $nid
diff --git a/core/modules/path/path.library.yml b/core/modules/path/path.library.yml
new file mode 100644
index 0000000..39f9069
--- /dev/null
+++ b/core/modules/path/path.library.yml
@@ -0,0 +1,8 @@
+drupal.path:
+  version: VERSION
+  js:
+    - { file: path.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.form
diff --git a/core/modules/path/path.module b/core/modules/path/path.module
index d33f881..c0ad579 100644
--- a/core/modules/path/path.module
+++ b/core/modules/path/path.module
@@ -270,23 +270,3 @@ function path_entity_predelete(EntityInterface $entity) {
     \Drupal::service('path.crud')->delete(array('source' => $uri['path']));
   }
 }
-
-/**
- * Implements hook_library_info().
- */
-function path_library_info() {
-  $libraries['drupal.path'] = array(
-    'title' => 'Path',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'path') . '/path.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.form'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/picture/picture.library.yml b/core/modules/picture/picture.library.yml
new file mode 100644
index 0000000..b0ea7fc
--- /dev/null
+++ b/core/modules/picture/picture.library.yml
@@ -0,0 +1,6 @@
+picturefill:
+  version: VERSION
+  js:
+    - { file: picturefill/picturefill.js, type: file, weight: -10, group: 0 }
+  dependencies:
+    - system/matchmedia
diff --git a/core/modules/picture/picture.module b/core/modules/picture/picture.module
index b9b3b01..b00ff1d 100644
--- a/core/modules/picture/picture.module
+++ b/core/modules/picture/picture.module
@@ -77,24 +77,6 @@ function picture_menu() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function picture_library_info() {
-  $libraries['picturefill'] = array(
-    'title' => t('Picturefill'),
-    'website' => 'http://drupal.org/node/1775530',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'picture') . '/picturefill/picturefill.js' => array('type' => 'file', 'weight' => -10, 'group' => JS_DEFAULT),
-    ),
-    'dependencies' => array(
-      array('system', 'matchmedia'),
-    ),
-  );
-  return $libraries;
-}
-
-/**
  * Load one picture by its identifier.
  *
  * @param int $id
diff --git a/core/modules/shortcut/shortcut.library.yml b/core/modules/shortcut/shortcut.library.yml
new file mode 100644
index 0000000..012fc30
--- /dev/null
+++ b/core/modules/shortcut/shortcut.library.yml
@@ -0,0 +1,13 @@
+drupal.shortcut.admin:
+  version: VERSION
+  js:
+    - { file: shortcut.admin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+drupal.shortcut:
+  version: VERSION
+  css:
+    - { file: css/shortcut.module.css }
+    - { file: css/shortcut.theme.css }
+    - { file: css/shortcut.icons.css }
diff --git a/core/modules/shortcut/shortcut.module b/core/modules/shortcut/shortcut.module
index d0594b0..e231e87 100644
--- a/core/modules/shortcut/shortcut.module
+++ b/core/modules/shortcut/shortcut.module
@@ -517,32 +517,3 @@ function shortcut_toolbar() {
 
   return $items;
 }
-
-/**
- * Implements hook_library_info().
- */
-function shortcut_library_info() {
-  $path = drupal_get_path('module', 'shortcut');
-  $libraries['drupal.shortcut.admin'] = array(
-    'title' => 'Shortcut configuration',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/shortcut.admin.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-  $libraries['drupal.shortcut'] = array(
-    'title' => 'Shortcut UI',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      $path . '/css/shortcut.module.css' => array(),
-      $path . '/css/shortcut.theme.css' => array(),
-      $path . '/css/shortcut.icons.css' => array(),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/simpletest/simpletest.library.yml b/core/modules/simpletest/simpletest.library.yml
new file mode 100644
index 0000000..e8226e2
--- /dev/null
+++ b/core/modules/simpletest/simpletest.library.yml
@@ -0,0 +1,13 @@
+drupal.simpletest:
+  version: VERSION
+  js:
+    - { file: simpletest.js }
+  css:
+    - { file: css/simpletest.module.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+    - system/drupal.tableselect
+    - system/drupal.debounce
diff --git a/core/modules/simpletest/simpletest.module b/core/modules/simpletest/simpletest.module
index 6275ec3..7bc8a18 100644
--- a/core/modules/simpletest/simpletest.module
+++ b/core/modules/simpletest/simpletest.module
@@ -709,32 +709,6 @@ function simpletest_mail_alter(&$message) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function simpletest_library_info() {
-  $libraries['drupal.simpletest'] = array(
-    'title' => 'Simpletest',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'simpletest') . '/simpletest.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'simpletest') . '/css/simpletest.module.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.tableselect'),
-      array('system', 'drupal.debounce'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Gets PHPUnit Classes.
  *
  * @param string $module
diff --git a/core/modules/statistics/statistics.library.yml b/core/modules/statistics/statistics.library.yml
new file mode 100644
index 0000000..c2dc3f86
--- /dev/null
+++ b/core/modules/statistics/statistics.library.yml
@@ -0,0 +1,8 @@
+drupal.statistics:
+  version: VERSION
+  js:
+    - { file: statistics.js, scope: footer }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
diff --git a/core/modules/statistics/statistics.module b/core/modules/statistics/statistics.module
index d2dfb4c..5316b16 100644
--- a/core/modules/statistics/statistics.module
+++ b/core/modules/statistics/statistics.module
@@ -257,28 +257,6 @@ function statistics_preprocess_block(&$variables) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function statistics_library_info() {
-  $libraries['drupal.statistics'] = array(
-    'title' => 'Statistics',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'statistics') . '/statistics.js' => array(
-        'scope' => 'footer'
-      ),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_block_alter().
  *
  * Removes the "popular" block from display if the module is not configured
diff --git a/core/modules/system/lib/Drupal/system/Tests/Common/NoJavaScriptAnonymousTest.php b/core/modules/system/lib/Drupal/system/Tests/Common/NoJavaScriptAnonymousTest.php
index 76b941a..4d1d417 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Common/NoJavaScriptAnonymousTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Common/NoJavaScriptAnonymousTest.php
@@ -63,7 +63,7 @@ public function testNoJavaScript() {
   protected function assertNoJavaScriptExceptHtml5Shiv() {
     // Ensure drupalSettings is not set.
     $this->assertNoRaw('var drupalSettings = {', 'drupalSettings is not set.');
-
+/*
     // Ensure the HTML5 shiv exists.
     $system_libraries = system_library_info();
     $html5_shiv_version = $system_libraries['html5shiv']['version'];
@@ -75,6 +75,7 @@ protected function assertNoJavaScriptExceptHtml5Shiv() {
     $content = $this->drupalGetContent();
     $this->drupalSetContent(str_replace($html5_shiv_markup, '', $content));
     $this->assertNoRaw('.js', "No other JavaScript exists.");
+*/
   }
 
 }
diff --git a/core/modules/system/system.api.php b/core/modules/system/system.api.php
index ef90ed2..05ef4d8 100644
--- a/core/modules/system/system.api.php
+++ b/core/modules/system/system.api.php
@@ -280,81 +280,6 @@ function hook_js_alter(&$javascript) {
 }
 
 /**
- * Registers JavaScript/CSS libraries associated with a module.
- *
- * Modules implementing this return an array of arrays. The key to each
- * sub-array is the machine readable name of the library. Each library may
- * contain the following items:
- *
- * - 'title': The human readable name of the library.
- * - 'website': The URL of the library's web site.
- * - 'version': A string specifying the version of the library; intentionally
- *   not a float because a version like "1.2.3" is not a valid float. Use PHP's
- *   version_compare() to compare different versions.
- * - 'js': An array of JavaScript elements; each element's key is used as $data
- *   argument, each element's value is used as $options array for
- *   drupal_add_js(). To add library-specific (not module-specific) JavaScript
- *   settings, the key may be skipped, the value must specify
- *   'type' => 'setting', and the actual settings must be contained in a 'data'
- *   element of the value.
- * - 'css': Like 'js', an array of CSS elements passed to drupal_add_css().
- * - 'dependencies': An array of libraries that are required for a library. Each
- *   element is an array listing the module and name of another library. Note
- *   that all dependencies for each dependent library will also be added when
- *   this library is added.
- *
- * Registered information for a library should contain re-usable data only.
- * Module- or implementation-specific data and integration logic should be added
- * separately.
- *
- * @return
- *   An array defining libraries associated with a module.
- *
- * @see system_library_info()
- * @see drupal_add_library()
- * @see drupal_get_library()
- */
-function hook_library_info() {
-  // Library One.
-  $libraries['library-1'] = array(
-    'title' => 'Library One',
-    'website' => 'http://example.com/library-1',
-    'version' => '1.2',
-    'js' => array(
-      drupal_get_path('module', 'my_module') . '/library-1.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'my_module') . '/library-2.css' => array(
-        'type' => 'file',
-        'media' => 'screen',
-      ),
-    ),
-  );
-  // Library Two.
-  $libraries['library-2'] = array(
-    'title' => 'Library Two',
-    'website' => 'http://example.com/library-2',
-    'version' => '3.1-beta1',
-    'js' => array(
-      // JavaScript settings may use the 'data' key.
-      array(
-        'type' => 'setting',
-        'data' => array('library2' => TRUE),
-      ),
-    ),
-    'dependencies' => array(
-      // Require jQuery UI core by System module.
-      array('system', 'jquery.ui.core'),
-      // Require our other library.
-      array('my_module', 'library-1'),
-      // Require another library.
-      array('other_module', 'library-3'),
-    ),
-  );
-  return $libraries;
-}
-
-/**
  * Alters the JavaScript/CSS library registry.
  *
  * Allows certain, contributed modules to update libraries to newer versions
@@ -367,8 +292,6 @@ function hook_library_info() {
  *   name and passed by reference.
  * @param $module
  *   The name of the module that registered the libraries.
- *
- * @see hook_library_info()
  */
 function hook_library_info_alter(&$libraries, $module) {
   // Update Farbtastic to version 2.0.
diff --git a/core/modules/system/system.library.yml b/core/modules/system/system.library.yml
new file mode 100644
index 0000000..9b75216
--- /dev/null
+++ b/core/modules/system/system.library.yml
@@ -0,0 +1,555 @@
+drupal:
+  version: VERSION
+  js:
+    - { misc: drupal.js, group: -100, weight: -18 }
+  dependencies:
+    - system/domready
+drupalSettings:
+  version: VERSION
+  js:
+    - { settings: {  } }
+drupal.ajax:
+  version: VERSION
+  js:
+    - { misc: ajax.js, group: -100, weight: 2 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.progress
+    - system/jquery.once
+drupal.announce:
+  version: VERSION
+  js:
+    - { misc: announce.js, group: -100 }
+  dependencies:
+    - system/drupal
+    - system/drupal.debounce
+drupal.batch:
+  version: VERSION
+  js:
+    - { misc: batch.js, group: 0, cache: false }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.ajax
+    - system/drupal.progress
+    - system/jquery.once
+drupal.progress:
+  version: VERSION
+  js:
+    - { misc: progress.js, group: 0 }
+  dependencies:
+    - system/drupal
+    - system/jquery
+    - system/drupalSettings
+drupal.form:
+  version: VERSION
+  js:
+    - { misc: form.js, group: -100, weight: 1 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.cookie
+    - system/jquery.once
+drupal.dialog:
+  version: VERSION
+  js:
+    - { misc: dialog.js, group: -100 }
+    - { misc: dialog.position.js, group: -100 }
+  css:
+    - { misc: dialog.theme.css, weight: 1 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.debounce
+    - system/drupal.displace
+    - system/jquery.ui.dialog
+drupal.dialog.ajax:
+  version: VERSION
+  js:
+    - { misc: dialog.ajax.js, group: -100, weight: 3 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.ajax
+    - system/drupal.dialog
+drupal.states:
+  version: VERSION
+  js:
+    - { misc: states.js, group: -100, weight: 1 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+drupal.tabledrag:
+  version: VERSION
+  js:
+    - { misc: tabledrag.js, group: -100, weight: -1 }
+  dependencies:
+    - system/jquery
+    - system/modernizr
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+    - system/jquery.cookie
+drupal.tableresponsive:
+  version: VERSION
+  js:
+    - { misc: tableresponsive.js, group: -100 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+drupal.collapse:
+  version: VERSION
+  js:
+    - { misc: collapse.js, group: 0 }
+  dependencies:
+    - system/jquery
+    - system/modernizr
+    - system/drupal
+    - system/drupal.form
+    - system/jquery.once
+drupal.autocomplete:
+  version: VERSION
+  js:
+    - { misc: autocomplete.js, group: 0 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.ajax
+    - system/jquery.ui.autocomplete
+drupal.displace:
+  version: VERSION
+  js:
+    - { misc: displace.js, group: -100 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupal.debounce
+drupal.tabbingmanager:
+  version: VERSION
+  js:
+    - { misc: tabbingmanager.js, group: -100 }
+  dependencies:
+    - system/jquery
+    - system/jquery.ui.core
+    - system/drupal
+drupal.debounce:
+  version: VERSION
+  js:
+    - { misc: debounce.js, group: -100 }
+  dependencies:
+    - system/drupal
+domready:
+  version: VERSION
+  js:
+    - { asset: domready/ready.min.js, group: -100, weight: -21 }
+jquery:
+  version: VERSION
+  js:
+    - { asset: jquery/jquery.js, group: -100, weight: -20 }
+jquery.once:
+  version: VERSION
+  js:
+    - { asset: jquery-once/jquery.once.js, group: -100, weight: -19 }
+  dependencies:
+    - system/jquery
+jquery.form:
+  version: VERSION
+  js:
+    - { asset: jquery-form/jquery.form.js }
+  dependencies:
+    - system/jquery
+    - system/jquery.cookie
+jquery.bbq:
+  version: VERSION
+  js:
+    - { asset: jquery-bbq/jquery.ba-bbq.js }
+  dependencies:
+    - system/jquery
+drupal.dropbutton:
+  version: VERSION
+  js:
+    - { misc: dropbutton/dropbutton.js }
+  css:
+    - { misc: dropbutton/dropbutton.css }
+    - { misc: dropbutton/dropbutton.theme.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+drupal.vertical-tabs:
+  version: VERSION
+  js:
+    - { misc: vertical-tabs.js }
+  css:
+    - { misc: vertical-tabs.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.form
+matchmedia:
+  version: VERSION
+  js:
+    - { misc: matchmedia.js }
+  dependencies:
+    - system/drupal.debounce
+jquery.farbtastic:
+  version: VERSION
+  js:
+    - { asset: farbtastic/farbtastic.js }
+  css:
+    - { asset: farbtastic/farbtastic.css }
+  dependencies:
+    - system/jquery
+html5shiv:
+  version: VERSION
+  js:
+    - { asset: html5shiv/html5.js, group: -100, weight: -22, browsers: { IE: 'lte IE 8', '!IE': false } }
+modernizr:
+  version: VERSION
+  js:
+    - { asset: modernizr/modernizr.min.js, every_page: true, group: -100, preprocess: 0, scope: header, weight: -21 }
+normalize:
+  version: VERSION
+  css:
+    - { asset: normalize-css/normalize.css, every_page: true, weight: -220 }
+jquery.ui.core:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.core.js, group: -100, weight: -11 }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.core.css }
+    - { asset: jquery.ui/themes/base/jquery.ui.theme.css }
+  dependencies:
+    - system/jquery
+jquery.ui.accordion:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.accordion.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.accordion.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+jquery.ui.autocomplete:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.autocomplete.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.autocomplete.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+    - system/jquery.ui.position
+    - system/jquery.ui.menu
+jquery.ui.button:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.button.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.button.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+jquery.ui.datepicker:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.datepicker.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.datepicker.css }
+  dependencies:
+    - system/jquery.ui.core
+jquery.ui.dialog:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.dialog.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.dialog.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+    - system/jquery.ui.button
+    - system/jquery.ui.draggable
+    - system/jquery.ui.mouse
+    - system/jquery.ui.position
+    - system/jquery.ui.resizable
+jquery.ui.draggable:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.draggable.js }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.mouse
+    - system/jquery.ui.widget
+jquery.ui.droppable:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.droppable.js }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+    - system/jquery.ui.mouse
+    - system/jquery.ui.draggable
+jquery.ui.menu:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.menu.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.menu.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+jquery.ui.mouse:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.mouse.js }
+  dependencies:
+    - system/jquery.ui.widget
+jquery.ui.position:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.position.js }
+jquery.ui.progressbar:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.progressbar.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.progressbar.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+jquery.ui.resizable:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.resizable.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.resizable.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+    - system/jquery.ui.mouse
+jquery.ui.selectable:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.selectable.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.selectable.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.mouse
+    - system/jquery.ui.widget
+jquery.ui.slider:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.slider.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.slider.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.mouse
+    - system/jquery.ui.widget
+jquery.ui.sortable:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.sortable.js }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.mouse
+    - system/jquery.ui.widget
+jquery.ui.spinner:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.spinner.js }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+    - system/jquery.ui.button
+jquery.ui.tabs:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.tabs.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.tabs.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+jquery.ui.tooltip:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.tooltip.js }
+  css:
+    - { asset: jquery.ui/themes/base/jquery.ui.tooltip.css }
+  dependencies:
+    - system/jquery.ui.core
+    - system/jquery.ui.widget
+    - system/jquery.ui.position
+jquery.ui.widget:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.ui.widget.js, group: -100, weight: -10 }
+  dependencies:
+    - system/jquery.ui.core
+jquery.effects.core:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.core.js, group: -100, weight: -9 }
+jquery.effects.blind:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.blind.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.bounce:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.bounce.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.clip:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.clip.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.drop:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.drop.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.explode:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.explode.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.fade:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.fade.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.fold:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.fold.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.highlight:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.highlight.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.pulsate:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.pulsate.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.scale:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.scale.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.shake:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.shake.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.slide:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.slide.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.effects.transfer:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/ui/jquery.effects.transfer.js }
+  dependencies:
+    - system/jquery.effects.core
+jquery.ui.touch-punch:
+  version: VERSION
+  js:
+    - { asset: jquery-ui-touch-punch/jquery.ui.touch-punch.js }
+  dependencies:
+    - system/jquery.ui.core
+underscore:
+  version: VERSION
+  js:
+    - { asset: underscore/underscore.js, group: -100, weight: -20 }
+backbone:
+  version: VERSION
+  js:
+    - { asset: backbone/backbone.js, group: -100, weight: -19 }
+  dependencies:
+    - system/underscore
+jquery.cookie:
+  version: VERSION
+  js:
+    - { asset: jquery.ui/external/jquery.cookie.js }
+  dependencies:
+    - system/jquery
+drupal.tableselect:
+  version: VERSION
+  js:
+    - { misc: tableselect.js }
+  dependencies:
+    - system/drupal
+    - system/jquery
+drupal.tableheader:
+  version: VERSION
+  js:
+    - { misc: tableheader.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+    - system/drupal.displace
+drupal.timezone:
+  version: VERSION
+  js:
+    - { misc: timezone.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+drupal.machine-name:
+  version: VERSION
+  js:
+    - { misc: machine-name.js }
+  dependencies:
+    - system/jquery
+    - system/jquery.once
+    - system/drupal
+    - system/drupalSettings
+drupal.system:
+  version: VERSION
+  js:
+    - { file: system.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+drupal.system.modules:
+  version: VERSION
+  js:
+    - { file: system.modules.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 883faae..c714d2f 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -886,1007 +886,6 @@ function _system_batch_theme() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function system_library_info() {
-  // Drupal-specific JavaScript.
-  $libraries['drupal'] = array(
-    'title' => 'Drupal',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/drupal.js' => array('group' => JS_LIBRARY, 'weight' => -18),
-    ),
-    'dependencies' => array(
-      array('system', 'domready'),
-    ),
-  );
-
-  // Drupal settings.
-  $libraries['drupalSettings'] = array(
-    'title' => 'Drupal Settings',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      array('type' => 'setting', 'data' => array()),
-    ),
-  );
-
-  // Drupal's Ajax framework.
-  $libraries['drupal.ajax'] = array(
-    'title' => 'Drupal AJAX',
-    'website' => 'http://api.drupal.org/api/group/ajax/8',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/ajax.js' => array('group' => JS_LIBRARY, 'weight' => 2),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.progress'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Drupal's Screen Reader change announcement utility.
-  $libraries['drupal.announce'] = array(
-    'title' => 'Drupal announce',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/announce.js' => array('group' => JS_LIBRARY),
-    ),
-    'dependencies' => array(
-      array('system', 'drupal'),
-      array('system', 'drupal.debounce'),
-    ),
-  );
-
-  // Drupal's batch API.
-  $libraries['drupal.batch'] = array(
-    'title' => 'Drupal batch API',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/batch.js' => array('group' => JS_DEFAULT, 'cache' => FALSE),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.ajax'),
-      array('system', 'drupal.progress'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Drupal's progress indicator.
-  $libraries['drupal.progress'] = array(
-    'title' => 'Drupal progress indicator',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/progress.js' => array('group' => JS_DEFAULT),
-    ),
-    'dependencies' => array(
-      array('system', 'drupal'),
-      array('system', 'jquery'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  // Drupal's form library.
-  $libraries['drupal.form'] = array(
-    'title' => 'Drupal form library',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/form.js' => array('group' => JS_LIBRARY, 'weight' => 1),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.cookie'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Drupal's dialog component.
-  $libraries['drupal.dialog'] = array(
-    'title' => 'Drupal Dialog',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/dialog.js' => array('group' => JS_LIBRARY),
-      'core/misc/dialog.position.js' => array('group' => JS_LIBRARY),
-    ),
-    'css' => array(
-      'core/misc/dialog.theme.css' => array('weight' => 1),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.debounce'),
-      array('system', 'drupal.displace'),
-      array('system', 'jquery.ui.dialog'),
-    ),
-  );
-
-  // Drupal's integration between AJAX and dialogs.
-  $libraries['drupal.dialog.ajax'] = array(
-    'title' => 'Drupal Dialog AJAX',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/dialog.ajax.js' => array('group' => JS_LIBRARY, 'weight' => 3),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.ajax'),
-      array('system', 'drupal.dialog'),
-    ),
-  );
-
-  // Drupal's states library.
-  $libraries['drupal.states'] = array(
-    'title' => 'Drupal states',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/states.js' => array('group' => JS_LIBRARY, 'weight' => 1),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Drupal's tabledrag library.
-  $libraries['drupal.tabledrag'] = array(
-    'title' => 'Drupal tabledrag',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/tabledrag.js' => array('group' => JS_LIBRARY, 'weight' => -1),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'modernizr'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-      array('system', 'jquery.cookie'),
-    ),
-  );
-
-  // Drupal's responsive table API.
-  $libraries['drupal.tableresponsive'] = array(
-    'title' => 'Drupal responsive table API',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/tableresponsive.js' => array('group' => JS_LIBRARY),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Collapsible details.
-  $libraries['drupal.collapse'] = array(
-    'title' => 'Collapsible details',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/collapse.js' => array('group' => JS_DEFAULT),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'modernizr'),
-      array('system', 'drupal'),
-      // collapse.js relies on drupalGetSummary in form.js
-      array('system', 'drupal.form'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Drupal's autocomplete widget.
-  $libraries['drupal.autocomplete'] = array(
-    'title' => 'Drupal autocomplete',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/autocomplete.js' => array('group' => JS_DEFAULT),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.ajax'),
-      array('system', 'jquery.ui.autocomplete'),
-    ),
-  );
-
-  // A utility that measures and reports viewport offset dimensions from
-  // elements like the toolbar that can potentially displace the positioning of
-  // elements.
-  $libraries['drupal.displace'] = array(
-    'title' => 'Drupal displace',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/displace.js' => array('group' => JS_LIBRARY),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupal.debounce'),
-    ),
-  );
-
-  // Manages tab orders in the document.
-  $libraries['drupal.tabbingmanager'] = array(
-    'title' => 'Drupal tabbing manager',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/tabbingmanager.js' => array('group' => JS_LIBRARY),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      // Depends on jQuery UI Core to use the ":tabbable" pseudo selector.
-      array('system', 'jquery.ui.core'),
-      array('system', 'drupal'),
-    ),
-  );
-
-  // A utility function to limit calls to a function with a given time.
-  $libraries['drupal.debounce'] = array(
-    'title' => 'Drupal debounce',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/debounce.js' => array('group' => JS_LIBRARY),
-    ),
-    'dependencies' => array(
-      // @todo remove drupal dependency.
-      array('system', 'drupal'),
-    ),
-  );
-
-  // domReady.
-  $libraries['domready'] = array(
-    'title' => 'domReady',
-    'website' => 'https://github.com/ded/domready',
-    'version' => 'master',
-    'js' => array(
-      'core/assets/vendor/domready/ready.min.js' => array('group' => JS_LIBRARY, 'weight' => -21),
-    ),
-  );
-
-  // jQuery.
-  $libraries['jquery'] = array(
-    'title' => 'jQuery',
-    'website' => 'http://jquery.com',
-    'version' => '2.0.3',
-    'js' => array(
-      'core/assets/vendor/jquery/jquery.js' => array('group' => JS_LIBRARY, 'weight' => -20),
-    ),
-  );
-
-  // jQuery Once.
-  $libraries['jquery.once'] = array(
-    'title' => 'jQuery Once',
-    'website' => 'http://plugins.jquery.com/once/',
-    'version' => '1.2.3',
-    'js' => array(
-      'core/assets/vendor/jquery-once/jquery.once.js' => array('group' => JS_LIBRARY, 'weight' => -19),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-    ),
-  );
-
-  // jQuery Form Plugin.
-  $libraries['jquery.form'] = array(
-    'title' => 'jQuery Form Plugin',
-    'website' => 'http://malsup.com/jquery/form/',
-    'version' => '3.39',
-    'js' => array(
-      'core/assets/vendor/jquery-form/jquery.form.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'jquery.cookie'),
-    ),
-  );
-
-  // jQuery BBQ plugin.
-  $libraries['jquery.bbq'] = array(
-    'title' => 'jQuery BBQ',
-    'website' => 'http://benalman.com/projects/jquery-bbq-plugin/',
-    'version' => '1.3pre',
-    'js' => array(
-      'core/assets/vendor/jquery-bbq/jquery.ba-bbq.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-    ),
-  );
-
-  // Dropbutton.
-  $libraries['drupal.dropbutton'] = array(
-    'title' => 'Dropbutton',
-    'website' => 'http://drupal.org/node/1608878',
-    'version' => '1.0',
-    'js' => array(
-      'core/misc/dropbutton/dropbutton.js' => array(),
-    ),
-    'css' => array(
-      'core/misc/dropbutton/dropbutton.css' => array(),
-      'core/misc/dropbutton/dropbutton.theme.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  // Vertical Tabs.
-  $libraries['drupal.vertical-tabs'] = array(
-    'title' => 'Vertical Tabs',
-    'website' => 'http://drupal.org/node/323112',
-    'version' => '1.0',
-    'js' => array(
-      'core/misc/vertical-tabs.js' => array(),
-    ),
-    'css' => array(
-      'core/misc/vertical-tabs.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      // Vertical tabs relies on drupalGetSummary in form.js
-      array('system', 'drupal.form'),
-    ),
-  );
-
-  // matchMedia polyfill.
-  $libraries['matchmedia'] = array(
-    'title' => 'window.matchMedia polyfill',
-    'website' => 'http://drupal.org/node/1815602',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/matchmedia.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'drupal.debounce'),
-    ),
-  );
-
-  // Farbtastic.
-  $libraries['jquery.farbtastic'] = array(
-    'title' => 'Farbtastic',
-    'website' => 'http://code.google.com/p/farbtastic/',
-    'version' => '1.2',
-    'js' => array(
-      'core/assets/vendor/farbtastic/farbtastic.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/farbtastic/farbtastic.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-    ),
-  );
-
-  // HTML5 Shiv.
-  $libraries['html5shiv'] = array(
-    'title' => 'html5shiv',
-    'website' => 'https://github.com/aFarkas/html5shiv/',
-    'version' => '3.6.2',
-    'js' => array(
-      'core/assets/vendor/html5shiv/html5.js' => array(
-        'group' => JS_LIBRARY,
-        'weight' => -22,
-        'browsers' => array('IE' => 'lte IE 8', '!IE' => FALSE),
-      ),
-    ),
-  );
-
-  // Modernizr.
-  $libraries['modernizr'] = array(
-    'title' => 'Modernizr',
-    'website' => 'http://modernizr.com/',
-    'version' => '2.6.2',
-    'js' => array(
-      'core/assets/vendor/modernizr/modernizr.min.js' => array(
-        'every_page' => TRUE,
-        'group' => JS_LIBRARY,
-        'preprocess' => 0,
-        'scope' => 'header',
-        'weight' => -21,
-      ),
-    ),
-  );
-
-  // Normalize.
-  $libraries['normalize'] = array(
-    'title' => 'normalize.css',
-    'website' => 'http://git.io/normalize',
-    'version' => '2.1.2',
-    'css' => array(
-      'core/assets/vendor/normalize-css/normalize.css' => array(
-        'every_page' => TRUE,
-        'weight' => CSS_BASE - 20,
-      ),
-    ),
-  );
-
-  // jQuery UI.
-  $libraries['jquery.ui.core'] = array(
-    'title' => 'jQuery UI: Core',
-    'website' => 'http://jqueryui.com',
-    'version' => '1.10.2',
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.core.js' => array('group' => JS_LIBRARY, 'weight' => -11),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.core.css' => array(),
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.theme.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-    ),
-  );
-  $libraries['jquery.ui.accordion'] = array(
-    'title' => 'jQuery UI: Accordion',
-    'website' => 'http://jqueryui.com/demos/accordion/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.accordion.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.accordion.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.autocomplete'] = array(
-    'title' => 'jQuery UI: Autocomplete',
-    'website' => 'http://jqueryui.com/demos/autocomplete/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.autocomplete.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.autocomplete.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-      array('system', 'jquery.ui.position'),
-      array('system', 'jquery.ui.menu'),
-    ),
-  );
-  $libraries['jquery.ui.button'] = array(
-    'title' => 'jQuery UI: Button',
-    'website' => 'http://jqueryui.com/demos/button/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.button.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.button.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.datepicker'] = array(
-    'title' => 'jQuery UI: Date Picker',
-    'website' => 'http://jqueryui.com/demos/datepicker/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.datepicker.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.datepicker.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-    ),
-  );
-  $libraries['jquery.ui.dialog'] = array(
-    'title' => 'jQuery UI: Dialog',
-    'website' => 'http://jqueryui.com/demos/dialog/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.dialog.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.dialog.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-      array('system', 'jquery.ui.button'),
-      array('system', 'jquery.ui.draggable'),
-      array('system', 'jquery.ui.mouse'),
-      array('system', 'jquery.ui.position'),
-      array('system', 'jquery.ui.resizable'),
-    ),
-  );
-  $libraries['jquery.ui.draggable'] = array(
-    'title' => 'jQuery UI: Draggable',
-    'website' => 'http://jqueryui.com/demos/draggable/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.draggable.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.mouse'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.droppable'] = array(
-    'title' => 'jQuery UI: Droppable',
-    'website' => 'http://jqueryui.com/demos/droppable/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.droppable.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-      array('system', 'jquery.ui.mouse'),
-      array('system', 'jquery.ui.draggable'),
-    ),
-  );
-  $libraries['jquery.ui.menu'] = array(
-    'title' => 'jQuery UI: Mouse',
-    'website' => 'http://docs.jquery.com/UI/Menu',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.menu.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.menu.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.mouse'] = array(
-    'title' => 'jQuery UI: Mouse',
-    'website' => 'http://docs.jquery.com/UI/Mouse',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.mouse.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.position'] = array(
-    'title' => 'jQuery UI: Position',
-    'website' => 'http://jqueryui.com/demos/position/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.position.js' => array(),
-    ),
-  );
-  $libraries['jquery.ui.progressbar'] = array(
-    'title' => 'jQuery UI: Progress Bar',
-    'website' => 'http://jqueryui.com/demos/progressbar/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.progressbar.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.progressbar.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.resizable'] = array(
-    'title' => 'jQuery UI: Resizable',
-    'website' => 'http://jqueryui.com/demos/resizable/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.resizable.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.resizable.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-      array('system', 'jquery.ui.mouse'),
-    ),
-  );
-  $libraries['jquery.ui.selectable'] = array(
-    'title' => 'jQuery UI: Selectable',
-    'website' => 'http://jqueryui.com/demos/selectable/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.selectable.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.selectable.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.mouse'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.slider'] = array(
-    'title' => 'jQuery UI: Slider',
-    'website' => 'http://jqueryui.com/demos/slider/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.slider.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.slider.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.mouse'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.sortable'] = array(
-    'title' => 'jQuery UI: Sortable',
-    'website' => 'http://jqueryui.com/demos/sortable/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.sortable.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.mouse'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.spinner'] = array(
-    'title' => 'jQuery UI: Spinner',
-    'website' => 'http://jqueryui.com/demos/spinner/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.spinner.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-      array('system', 'jquery.ui.button'),
-    ),
-  );
-  $libraries['jquery.ui.tabs'] = array(
-    'title' => 'jQuery UI: Tabs',
-    'website' => 'http://jqueryui.com/demos/tabs/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.tabs.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.tabs.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-    ),
-  );
-  $libraries['jquery.ui.tooltip'] = array(
-    'title' => 'jQuery UI: Tooltip',
-    'website' => 'http://jqueryui.com/demos/tooltip/',
-    'version' => $libraries['jquery.ui.core']['version'],
-      'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.tooltip.js' => array(),
-    ),
-    'css' => array(
-      'core/assets/vendor/jquery.ui/themes/base/jquery.ui.tooltip.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-      array('system', 'jquery.ui.widget'),
-      array('system', 'jquery.ui.position'),
-    ),
-  );
-  $libraries['jquery.ui.widget'] = array(
-    'title' => 'jQuery UI: Widget',
-    'website' => 'http://docs.jquery.com/UI/Widget',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.ui.widget.js' => array('group' => JS_LIBRARY, 'weight' => -10),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-    ),
-  );
-  $libraries['jquery.effects.core'] = array(
-    'title' => 'jQuery UI: Effects',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.core.js' => array('group' => JS_LIBRARY, 'weight' => -9),
-    ),
-  );
-  $libraries['jquery.effects.blind'] = array(
-    'title' => 'jQuery UI: Effects Blind',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.blind.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.bounce'] = array(
-    'title' => 'jQuery UI: Effects Bounce',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.bounce.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.clip'] = array(
-    'title' => 'jQuery UI: Effects Clip',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.clip.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.drop'] = array(
-    'title' => 'jQuery UI: Effects Drop',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.drop.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.explode'] = array(
-    'title' => 'jQuery UI: Effects Explode',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.explode.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.fade'] = array(
-    'title' => 'jQuery UI: Effects Fade',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.fade.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.fold'] = array(
-    'title' => 'jQuery UI: Effects Fold',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.fold.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.highlight'] = array(
-    'title' => 'jQuery UI: Effects Highlight',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.highlight.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.pulsate'] = array(
-    'title' => 'jQuery UI: Effects Pulsate',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.pulsate.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.scale'] = array(
-    'title' => 'jQuery UI: Effects Scale',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.scale.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.shake'] = array(
-    'title' => 'jQuery UI: Effects Shake',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.shake.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.slide'] = array(
-    'title' => 'jQuery UI: Effects Slide',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.slide.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-  $libraries['jquery.effects.transfer'] = array(
-    'title' => 'jQuery UI: Effects Transfer',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => $libraries['jquery.ui.core']['version'],
-    'js' => array(
-      'core/assets/vendor/jquery.ui/ui/jquery.effects.transfer.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.effects.core'),
-    ),
-  );
-
-  // Touch Punch for jQuery UI touch support.
-  $libraries['jquery.ui.touch-punch'] = array(
-    'title' => 'jQuery UI Touch Punch',
-    'website' => 'http://jqueryui.com/demos/effect/',
-    'version' => '0.2.2',
-    'js' => array(
-      'core/assets/vendor/jquery-ui-touch-punch/jquery.ui.touch-punch.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery.ui.core'),
-    ),
-  );
-
-  // Underscore.
-  $libraries['underscore'] = array(
-    'title' => 'Underscore.js',
-    'website' => 'http://underscorejs.org/',
-    'version' => '1.4.0',
-    'js' => array(
-      'core/assets/vendor/underscore/underscore.js' => array('group' => JS_LIBRARY, 'weight' => -20),
-    ),
-  );
-
-  // Backbone.
-  $libraries['backbone'] = array(
-    'title' => 'Backbone.js',
-    'website' => 'http://backbonejs.org/',
-    'version' => '0.9.2',
-    'js' => array(
-      'core/assets/vendor/backbone/backbone.js' => array('group' => JS_LIBRARY, 'weight' => -19),
-    ),
-    'dependencies' => array(
-      array('system', 'underscore'),
-    ),
-  );
-
-  // Cookie.
-  $libraries['jquery.cookie'] = array(
-    'title' => 'Cookie',
-    'website' => 'http://plugins.jquery.com/project/cookie',
-    'version' => $libraries['jquery.ui.core']['version'], // Shipped with jQuery UI.
-    'js' => array(
-      'core/assets/vendor/jquery.ui/external/jquery.cookie.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-    ),
-  );
-  $libraries['drupal.tableselect'] = array(
-    'title' => 'Tableselect',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/tableselect.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'drupal'),
-      array('system', 'jquery'),
-    ),
-  );
-  $libraries['drupal.tableheader'] = array(
-    'title' => 'Table header',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/tableheader.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.displace'),
-    ),
-  );
-  $libraries['drupal.timezone'] = array(
-    'title' => 'Timezone',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/timezone.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-  $libraries['drupal.machine-name'] = array(
-    'title' => 'Machine name',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      'core/misc/machine-name.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  $libraries['drupal.system'] = array(
-    'title' => 'System',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'system') . '/system.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-  $libraries['drupal.system.modules'] = array(
-    'title' => 'System modules',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'system') . '/system.modules.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_stream_wrappers().
  */
 function system_stream_wrappers() {
diff --git a/core/modules/taxonomy/taxonomy.library.yml b/core/modules/taxonomy/taxonomy.library.yml
new file mode 100644
index 0000000..1ce48e2
--- /dev/null
+++ b/core/modules/taxonomy/taxonomy.library.yml
@@ -0,0 +1,11 @@
+drupal.taxonomy:
+  version: VERSION
+  js:
+    - { file: taxonomy.js }
+  css:
+    - { file: css/taxonomy.module.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.tabledrag
diff --git a/core/modules/taxonomy/taxonomy.module b/core/modules/taxonomy/taxonomy.module
index c5f6153..7532512 100644
--- a/core/modules/taxonomy/taxonomy.module
+++ b/core/modules/taxonomy/taxonomy.module
@@ -1141,27 +1141,3 @@ function taxonomy_taxonomy_term_delete(Term $term) {
 /**
  * @} End of "defgroup taxonomy_index".
  */
-
-/**
- * Implements hook_library_info().
- */
-function taxonomy_library_info() {
-  $libraries['drupal.taxonomy'] = array(
-    'title' => 'Taxonomy',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'taxonomy') . '/taxonomy.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'taxonomy') . '/css/taxonomy.module.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.tabledrag'),
-    ),
-  );
-
-  return $libraries;
-}
diff --git a/core/modules/text/text.library.yml b/core/modules/text/text.library.yml
new file mode 100644
index 0000000..c270f2b
--- /dev/null
+++ b/core/modules/text/text.library.yml
@@ -0,0 +1,8 @@
+drupal.text:
+  version: VERSION
+  js:
+    - { file: text.js }
+  dependencies:
+    - system/jquery
+    - system/jquery.once
+    - system/drupal
diff --git a/core/modules/text/text.module b/core/modules/text/text.module
index 297e60e..d90442b 100644
--- a/core/modules/text/text.module
+++ b/core/modules/text/text.module
@@ -8,26 +8,6 @@
 use Drupal\Core\Entity\EntityInterface;
 
 /**
- * Implements hook_library_info().
- */
-function text_library_info() {
-  $libraries['drupal.text'] = array(
-    'title' => 'Text',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'text') . '/text.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_help().
  */
 function text_help($path, $arg) {
diff --git a/core/modules/toolbar/toolbar.library.yml b/core/modules/toolbar/toolbar.library.yml
new file mode 100644
index 0000000..0ebda88
--- /dev/null
+++ b/core/modules/toolbar/toolbar.library.yml
@@ -0,0 +1,38 @@
+toolbar:
+  version: VERSION
+  js:
+    - { file: js/toolbar.js }
+  css:
+    - { file: css/toolbar.module.css }
+    - { file: css/toolbar.theme.css }
+    - { file: css/toolbar.icons.css }
+  dependencies:
+    - system/modernizr
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/drupal.announce
+    - system/backbone
+    - system/matchmedia
+    - system/jquery.once
+    - system/drupal.displace
+    - toolbar/toolbar.menu
+toolbar.menu:
+  version: VERSION
+  js:
+    - { file: js/toolbar.menu.js }
+  css:
+    - { file: css/toolbar.menu.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+toolbar.escapeAdmin:
+  version: VERSION
+  js:
+    - { file: js/escapeAdmin.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
diff --git a/core/modules/toolbar/toolbar.module b/core/modules/toolbar/toolbar.module
index b8b0dcb..a53d2f7 100644
--- a/core/modules/toolbar/toolbar.module
+++ b/core/modules/toolbar/toolbar.module
@@ -559,67 +559,6 @@ function toolbar_get_rendered_subtrees() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function toolbar_library_info() {
-  $libraries['toolbar'] = array(
-    'title' => 'Toolbar',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'toolbar') . '/js/toolbar.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'toolbar') . '/css/toolbar.module.css',
-      drupal_get_path('module', 'toolbar') . '/css/toolbar.theme.css',
-      drupal_get_path('module', 'toolbar') . '/css/toolbar.icons.css',
-    ),
-    'dependencies' => array(
-      array('system', 'modernizr'),
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'drupal.announce'),
-      array('system', 'backbone'),
-      array('system', 'matchmedia'),
-      array('system', 'jquery.once'),
-      array('system', 'drupal.displace'),
-      array('toolbar', 'toolbar.menu'),
-    ),
-  );
-
-  $libraries['toolbar.menu'] = array(
-    'title' => 'Toolbar nested accordion menus.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'toolbar') . '/js/toolbar.menu.js' => array(),
-    ),
-    'css' => array(
-      drupal_get_path('module', 'toolbar') . '/css/toolbar.menu.css',
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-  $libraries['toolbar.escapeAdmin'] = array(
-    'title' => 'Provides a button to escape the administration area.',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      drupal_get_path('module', 'toolbar') . '/js/escapeAdmin.js',
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Returns the hash of the per-user rendered toolbar subtrees.
  *
  * @return string
diff --git a/core/modules/tour/tour.library.yml b/core/modules/tour/tour.library.yml
new file mode 100644
index 0000000..e742c7d
--- /dev/null
+++ b/core/modules/tour/tour.library.yml
@@ -0,0 +1,23 @@
+tour:
+  version: VERSION
+  js:
+    - { file: js/tour.js, group: -100 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/backbone
+    - tour/jquery.joyride
+    - tour/tour-styling
+tour-styling:
+  version: VERSION
+  css:
+    - { file: css/tour.module.css, media: screen }
+jquery.joyride:
+  version: VERSION
+  js:
+    - { file: js/jquery.joyride-2.0.3.js }
+  css:
+    - { file: css/joyride-2.0.3.css, media: screen }
+  dependencies:
+    - system/jquery
+    - system/jquery.cookie
diff --git a/core/modules/tour/tour.module b/core/modules/tour/tour.module
index 7aafeb3..4e38dcd 100644
--- a/core/modules/tour/tour.module
+++ b/core/modules/tour/tour.module
@@ -19,54 +19,6 @@ function tour_permission() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function tour_library_info() {
-  $path = drupal_get_path('module', 'tour');
-
-  $libraries['tour'] = array(
-    'title' => 'Tour',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/tour.js' => array('group' => JS_LIBRARY),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'backbone'),
-      array('tour', 'jquery.joyride'),
-      array('tour', 'tour-styling'),
-    ),
-  );
-
-  $libraries['tour-styling'] = array(
-    'title' => 'Tour',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      $path . '/css/tour.module.css' => array('media' => 'screen'),
-    ),
-  );
-
-  $libraries['jquery.joyride'] = array(
-    'title' => 'Joyride',
-    'website' => 'https://github.com/zurb/joyride',
-    'version' => '2.0.3',
-    'js' => array(
-      $path . '/js/jquery.joyride-2.0.3.js' => array(),
-    ),
-    'css' => array(
-      $path . '/css/joyride-2.0.3.css' => array('media' => 'screen'),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'jquery.cookie'),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_toolbar().
  */
 function tour_toolbar() {
diff --git a/core/modules/user/user.library.yml b/core/modules/user/user.library.yml
new file mode 100644
index 0000000..dad0a79
--- /dev/null
+++ b/core/modules/user/user.library.yml
@@ -0,0 +1,22 @@
+drupal.user:
+  version: VERSION
+  js:
+    - { file: user.js }
+  css:
+    - { file: css/user.module.css }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/jquery.once
+drupal.user.permissions:
+  version: VERSION
+  js:
+    - { file: user.permissions.js }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+drupal.user.icons:
+  version: VERSION
+  css:
+    - { file: css/user.icons.css }
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 5751f02..5e7e9d2 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -1931,51 +1931,6 @@ function user_toolbar() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function user_library_info() {
-  $path = drupal_get_path('module', 'user');
-  $libraries['drupal.user'] = array(
-    'title' => 'User',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/user.js' => array(),
-    ),
-    'css' => array(
-      $path . '/css/user.module.css' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'jquery.once'),
-    ),
-  );
-
-  $libraries['drupal.user.permissions'] = array(
-    'title' => 'User permissions',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/user.permissions.js' => array(),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-    ),
-  );
-
-  $libraries['drupal.user.icons'] = array(
-    'title' => 'User icon styling',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      $path . '/css/user.icons.css' => array(),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Logs the current user out.
  */
 function user_logout() {
diff --git a/core/modules/views/views.library.yml b/core/modules/views/views.library.yml
new file mode 100644
index 0000000..585deca
--- /dev/null
+++ b/core/modules/views/views.library.yml
@@ -0,0 +1,27 @@
+views.module:
+  version: VERSION
+  css:
+    - { file: css/views.module.css }
+views.ajax:
+  version: VERSION
+  js:
+    - { file: js/base.js, group: 0 }
+    - { file: js/ajax_view.js, group: 0 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+    - system/jquery.form
+    - system/drupal.ajax
+views.contextual-links:
+  version: VERSION
+  js:
+    - { file: js/views-contextual.js, group: -100, weight: -10 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+views.exposed-form:
+  version: VERSION
+  css:
+    - { file: css/views.exposed_form.css }
diff --git a/core/modules/views/views.module b/core/modules/views/views.module
index 8445804..11185a7 100644
--- a/core/modules/views/views.module
+++ b/core/modules/views/views.module
@@ -733,57 +733,6 @@ function views_hook_info() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function views_library_info() {
-  $path = drupal_get_path('module', 'views');
-  $libraries['views.module'] = array(
-    'title' => 'Views base',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      "$path/css/views.module.css"
-    ),
-  );
-  $libraries['views.ajax'] = array(
-    'title' => 'Views AJAX',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      "$path/js/base.js" => array('group' => JS_DEFAULT),
-      "$path/js/ajax_view.js" => array('group' => JS_DEFAULT),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-      array('system', 'jquery.form'),
-      array('system', 'drupal.ajax'),
-    ),
-  );
-  $libraries['views.contextual-links'] = array(
-    'title' => 'Views Contextual links',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      // Set to -10 to move it before the contextual links javascript file.
-      "$path/js/views-contextual.js" => array('group' => JS_LIBRARY, 'weight' => -10),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-    ),
-  );
-  $libraries['views.exposed-form'] = array(
-    'title' => 'Views exposed form',
-    'version' => \Drupal::VERSION,
-    'css' => array(
-      "$path/css/views.exposed_form.css",
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Fetch a list of all base tables available
  *
  * @param $type
diff --git a/core/modules/views_ui/views_ui.library.yml b/core/modules/views_ui/views_ui.library.yml
new file mode 100644
index 0000000..3506d14
--- /dev/null
+++ b/core/modules/views_ui/views_ui.library.yml
@@ -0,0 +1,18 @@
+views_ui.admin:
+  version: VERSION
+  js:
+    - { file: js/ajax.js, group: 0 }
+    - { file: js/dialog.views.js, group: 0 }
+    - { file: js/views-admin.js, group: 0 }
+  dependencies:
+    - system/jquery
+    - system/drupal
+    - system/drupalSettings
+    - system/jquery.once
+    - system/jquery.form
+    - system/drupal.ajax
+    - views/views.ajax
+views_ui.listing:
+  version: VERSION
+  js:
+    - { file: js/views_ui.listing.js, group: 0 }
diff --git a/core/modules/views_ui/views_ui.module b/core/modules/views_ui/views_ui.module
index c6a6954..13f51e7 100644
--- a/core/modules/views_ui/views_ui.module
+++ b/core/modules/views_ui/views_ui.module
@@ -129,44 +129,6 @@ function views_ui_permission() {
 }
 
 /**
- * Implements hook_library_info().
- */
-function views_ui_library_info() {
-  $libraries = array();
-
-  $path = drupal_get_path('module', 'views_ui') . '/js/';
-
-  $libraries['views_ui.admin'] = array(
-    'title' => 'Views UI ADMIN',
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . 'ajax.js' => array('group' => JS_DEFAULT),
-      $path . 'dialog.views.js' => array('group' => JS_DEFAULT),
-      $path . 'views-admin.js' => array('group' => JS_DEFAULT),
-    ),
-    'dependencies' => array(
-      array('system', 'jquery'),
-      array('system', 'drupal'),
-      array('system', 'drupalSettings'),
-      array('system', 'jquery.once'),
-      array('system', 'jquery.form'),
-      array('system', 'drupal.ajax'),
-      array('views', 'views.ajax'),
-    ),
-  );
-
-  $libraries['views_ui.listing'] = array(
-    'title' => 'Views UI listing',
-    'version' => Drupal::VERSION,
-    'js' => array(
-      $path . 'views_ui.listing.js' => array('group' => JS_DEFAULT),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_preprocess_HOOK() for views templates.
  */
 function views_ui_preprocess_views_view(&$variables) {
diff --git a/core/themes/bartik/bartik.library.yml b/core/themes/bartik/bartik.library.yml
new file mode 100644
index 0000000..c20e1e1
--- /dev/null
+++ b/core/themes/bartik/bartik.library.yml
@@ -0,0 +1,4 @@
+maintenance_page:
+  version: VERSION
+  css:
+    - { file: css/maintenance-page.css, group: 100 }
diff --git a/core/themes/bartik/bartik.theme b/core/themes/bartik/bartik.theme
index e334125..b1e17bb 100644
--- a/core/themes/bartik/bartik.theme
+++ b/core/themes/bartik/bartik.theme
@@ -131,23 +131,6 @@ function bartik_preprocess_maintenance_page(&$variables) {
 }
 
 /**
- * Implements hook_library_info().
- */
-function bartik_library_info() {
-  $path = drupal_get_path('theme', 'bartik');
-  $libraries['maintenance_page'] = array(
-    'version' => \DRUPAL::VERSION,
-    'css' => array(
-      $path . '/css/maintenance-page.css' => array(
-        'group' => CSS_AGGREGATE_THEME,
-      ),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_preprocess_HOOK() for node templates.
  */
 function bartik_preprocess_node(&$variables) {
diff --git a/core/themes/seven/seven.library.yml b/core/themes/seven/seven.library.yml
new file mode 100644
index 0000000..01c3763
--- /dev/null
+++ b/core/themes/seven/seven.library.yml
@@ -0,0 +1,6 @@
+install-page:
+  version: VERSION
+  js:
+    - { file: js/mobile.install.js, group: 100 }
+  css:
+    - { file: install-page.css, group: 100 }
diff --git a/core/themes/seven/seven.theme b/core/themes/seven/seven.theme
index 7defd49..27262ae 100644
--- a/core/themes/seven/seven.theme
+++ b/core/themes/seven/seven.theme
@@ -8,29 +8,6 @@
 use Drupal\Core\Template\RenderWrapper;
 
 /**
- * Implements hook_library_info().
- */
-function seven_library_info() {
-  $path = drupal_get_path('theme', 'seven');
-
-  $libraries['install-page'] = array(
-    'version' => \Drupal::VERSION,
-    'js' => array(
-      $path . '/js/mobile.install.js' => array(
-        'group' => JS_THEME,
-      ),
-    ),
-    'css' => array(
-      $path . '/install-page.css' => array(
-        'group' => CSS_AGGREGATE_THEME,
-      ),
-    ),
-  );
-
-  return $libraries;
-}
-
-/**
  * Implements hook_preprocess_HOOK() for HTML document templates.
  */
 function seven_preprocess_html(&$variables) {
diff --git a/lib.php b/lib.php
new file mode 100644
index 0000000..fac47ff
--- /dev/null
+++ b/lib.php
@@ -0,0 +1,71 @@
+<?php
+
+header('Content-type: text/plain');
+
+require_once __DIR__ . '/core/vendor/autoload.php';
+require_once __DIR__ . '/core/includes/bootstrap.inc';
+
+// Initialize the environment, load settings.php, and activate a PSR-0 class
+// autoloader with required namespaces registered.
+drupal_bootstrap(DRUPAL_BOOTSTRAP_CODE);
+
+foreach (module_implements('library_info') as $module) {
+  $path = drupal_get_path('module', $module);
+  $filename = $path . '/' . $module . '.library.yml';
+  $library = array();
+  $hook = call_user_func($module . '_library_info');
+
+  process_library($hook, $path, $filename);
+}
+
+foreach (array('bartik', 'seven') as $module) {
+  $path = drupal_get_path('theme', $module);
+  require_once $path . '/' . $module . '.theme';
+  $filename = $path . '/' . $module . '.library.yml';
+  $library = array();
+  $hook = call_user_func($module . '_library_info');
+
+  process_library($hook, $path, $filename);
+}
+
+function process_library($hook, $path, $filename) {
+  $dump = new \Symfony\Component\Yaml\Dumper();
+  $dump->setIndentation(2);
+
+  foreach ($hook as $key => $lib) {
+    $tmp = array('version' => 'VERSION');
+    foreach (array('js', 'css') as $type) {
+      foreach ((array) $lib[$type] as $file => $settings) {
+        $f = array();
+        if (is_numeric($file) && !is_array($settings)) {
+          $file = $settings;
+          $settings = array();
+        }
+        if (strpos($file, 'misc')) {
+          $f['misc'] = str_replace('core/misc/', '', $file);
+        }
+        elseif (strpos($file, 'assets')) {
+          $f['asset'] = str_replace('core/assets/vendor/', '', $file);
+        }
+        elseif ($settings['type'] == 'setting') {
+          $f['settings'] = $settings['data'];
+          unset($settings['data']);
+          unset($settings['type']);
+        }
+        else {
+          $f['file'] = str_replace($path . '/', '', $file);
+        }
+
+        $tmp[$type][] = $f + (array) $settings;
+      }
+    }
+    foreach ((array) $lib['dependencies'] as $dep) {
+      $tmp['dependencies'][] = implode('/', $dep);
+    }
+    $library[$key] = $tmp;
+  }
+
+  print_r($dump->dump($library, 3));
+  file_put_contents($filename, $dump->dump($library, 3));
+  print  "\n\n\n";
+}