Handles updates of Drupal core and contributed projects.
The module checks for available updates of Drupal core and any installed contributed modules and themes. It warns site administrators if newer releases are available via the system status report (admin/reports/status), the module and theme pages, and optionally via email. It also provides the ability to install contributed modules and themes via an user interface.
File
core/modules/update/update.module
Functions
| Name | Description |
|---|---|
| template_preprocess_update_last_check | Prepares variables for last time update data was checked templates. |
| update_clear_update_disk_cache | Clears the temporary files and directories based on file age from disk. |
| update_create_fetch_task | Adds a task to the queue for fetching release history data for a project. |
| update_cron | Implements hook_cron(). |
| update_delete_file_if_stale | Deletes stale files and directories from the update manager disk cache. |
| update_fetch_data | Attempts to fetch update data after loading the necessary include file. |
| update_fetch_data_finished | Batch callback: Performs actions when all fetch tasks have been completed. |
| update_form_system_modules_alter | Implements hook_form_FORM_ID_alter() for system_modules(). |
| update_get_available | Tries to get update information and refreshes it when necessary. |
| update_help | Implements hook_help(). |
| update_mail | Implements hook_mail(). |
| update_page_top | Implements hook_page_top(). |
| update_refresh | Refreshes the release data after loading the necessary include file. |
| update_storage_clear | Invalidates stored data relating to update status. |
| update_storage_clear_submit | Form submission handler for system_modules(). |
| update_theme | Implements hook_theme(). |
| update_themes_installed | Implements hook_themes_installed(). |
| update_themes_uninstalled | Implements hook_themes_uninstalled(). |
| update_verify_update_archive | Implements hook_verify_update_archive(). |
| _update_manager_access | Resolves if the current user can access updater menu items. |
| _update_manager_cache_directory | Returns the directory where update archive files should be cached. |
| _update_manager_extract_directory | Returns the directory where update archive files should be extracted. |
| _update_manager_unique_identifier | Returns a short unique identifier for this Drupal installation. |
| _update_message_text | Returns the appropriate message text when site is out of date or not secure. |
| _update_no_data | Returns a warning message when there is no data about available updates. |
| _update_project_status_sort | Orders projects based on their status. |
Constants
| Name | Description |
|---|---|
| UPDATE_CURRENT | Project is up to date. |
| UPDATE_FETCH_PENDING | We need to (re)fetch available update data for this project. |
| UPDATE_NOT_CHECKED | Project's status cannot be checked. |
| UPDATE_NOT_CURRENT | Project has a new release available, but it is not a security release. |
| UPDATE_NOT_FETCHED | There was a failure fetching available update data for this project. |
| UPDATE_NOT_SECURE | Project is missing security update(s). |
| UPDATE_NOT_SUPPORTED | Current release is no longer supported by the project maintainer. |
| UPDATE_REVOKED | Current release has been unpublished and is no longer available. |
| UPDATE_UNKNOWN | No available update data was found for project. |
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