- backdrop_requirements_url in includes/
install.inc - Returns a URL for proceeding to the next page after a requirements problem.
- ckeditor_requirements in modules/
ckeditor/ ckeditor.install - Implements hook_requirements().
- image_requirements in modules/
image/ image.install - Implements hook_requirements() to check the PHP GD Library.
- install_verify_requirements in includes/
install.core.inc - Verifies the requirements for installing Backdrop.
- system_requirements in modules/
system/ system.install - Implements hook_requirements().
- theme_status_report in modules/
system/ system.theme.inc - Returns HTML for the status report.
- unicode_requirements in includes/
unicode.inc - Returns Unicode library status and errors.
- update_check_requirements in ./
update.php - Checks update requirements and reports errors and (optionally) warnings.
- update_init in modules/
update/ update.module - Implements hook_init().
- _update_requirement_check in modules/
update/ update.install - Fills in the requirements array.
- UpdateScriptFunctionalTest::testRequirements in modules/
system/ tests/ system.test - Tests that requirements warnings and errors are correctly displayed.
- update_script_test_requirements in modules/
simpletest/ tests/ update_script_test.install - Implements hook_requirements().