FILE_EXISTS_REPLACE

drupal_build_css_cache in includes/common.inc

Aggregates and optimizes CSS files into a cache file in the files directory.

drupal_build_js_cache in includes/common.inc

Aggregates JavaScript files into a cache file in the files directory.

FileCopyTest::testExistingReplace in modules/simpletest/tests/file.test

Test replacement when copying over a file that already exists.

FileDirectoryTest::testFileDestination in modules/simpletest/tests/file.test

This will test the filepath for a destination based on passed flags and whether or not the file exists.

FileMoveTest::testExistingReplace in modules/simpletest/tests/file.test

Test replacement when moving onto a file that already exists.

... See full list