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diff --git a/vendor/drush/drush/lib/Drush/UpdateService/StatusInfoDrupal7.php b/vendor/drush/drush/lib/Drush/UpdateService/StatusInfoDrupal7.php
new file mode 100644
index 000000000..0e6ae6eb4
--- /dev/null
+++ b/vendor/drush/drush/lib/Drush/UpdateService/StatusInfoDrupal7.php
@@ -0,0 +1,109 @@
+<?php
+
+/**
+ * @file
+ * Implementation of 'drupal' update_status engine for Drupal 7.
+ */
+
+namespace Drush\UpdateService;
+
+class StatusInfoDrupal7 extends StatusInfoDrupal8 {
+
+  /**
+   * {@inheritdoc}
+   */
+  function lastCheck() {
+    return variable_get('update_last_check', 0);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  function beforeGetStatus(&$projects, $check_disabled) {
+    // If check-disabled option was provided, alter Drupal settings temporarily.
+    // There's no other way to hook into this.
+    if (!is_null($check_disabled)) {
+      global $conf;
+      $this->update_check_disabled = $conf['update_check_disabled'];
+      $conf['update_check_disabled'] = $check_disabled;
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  function afterGetStatus(&$update_info, $projects, $check_disabled) {
+    // Restore Drupal settings.
+    if (!is_null($check_disabled)) {
+      global $conf;
+      $conf['update_check_disabled'] = $this->update_check_disabled;
+      unset($this->update_check_disabled);
+    }
+
+    // update.module sets a different project type
+    // for disabled projects. Here we normalize it.
+    if ($check_disabled) {
+      foreach ($update_info as $key => $project) {
+        if (in_array($project['project_type'], array('module-disabled', 'theme-disabled'))) {
+          $update_info[$key]['project_type'] = substr($project['project_type'], 0, strpos($project['project_type'], '-'));
+        }
+      }
+    }
+  }
+
+  /**
+   * Obtains release info for all installed projects via update.module.
+   *
+   * @see update_get_available().
+   * @see update_manual_status().
+   */
+  protected function getAvailableReleases() {
+    // Force to invalidate some caches that are only cleared
+    // when visiting update status report page. This allow to detect changes in
+    // .info files.
+    _update_cache_clear('update_project_data');
+    _update_cache_clear('update_project_projects');
+
+    // From update_get_available(): Iterate all projects and create a fetch task
+    // for those we have no information or is obsolete.
+    $available = _update_get_cached_available_releases();
+
+    module_load_include('inc', 'update', 'update.compare');
+    $update_projects = update_get_projects();
+
+    foreach ($update_projects as $key => $project) {
+      if (empty($available[$key])) {
+        update_create_fetch_task($project);
+        continue;
+      }
+      if ($project['info']['_info_file_ctime'] > $available[$key]['last_fetch']) {
+        $available[$key]['fetch_status'] = UPDATE_FETCH_PENDING;
+      }
+      if (empty($available[$key]['releases'])) {
+        $available[$key]['fetch_status'] = UPDATE_FETCH_PENDING;
+      }
+      if (!empty($available[$key]['fetch_status']) && $available[$key]['fetch_status'] == UPDATE_FETCH_PENDING) {
+        update_create_fetch_task($project);
+      }
+    }
+
+    // Set a batch to process all pending tasks.
+    $batch = array(
+      'operations' => array(
+        array('update_fetch_data_batch', array()),
+      ),
+      'finished' => 'update_fetch_data_finished',
+      'file' => drupal_get_path('module', 'update') . '/update.fetch.inc',
+    );
+    batch_set($batch);
+    drush_backend_batch_process();
+
+    // Clear any error set by a failed update fetch task. This avoid rollbacks.
+    drush_clear_error();
+
+    // Calculate update status data.
+    $available = _update_get_cached_available_releases();
+    return $available;
+  }
+}
+