Plugin_Upgrader
Core class used for upgrading/installing plugins.
WordPress File wp-admin/includes/class-plugin-upgrader.php
Plugin_Upgrader::active_after()
Turns off maintenance mode after upgrading an active plugin.
Plugin_Upgrader::active_before()
Turns on maintenance mode before attempting to background update an active plugin.
Plugin_Upgrader::bulk_upgrade()
Bulk upgrade several plugins at once.
Plugin_Upgrader::check_package()
Checks that the source package contains a valid plugin.
Plugin_Upgrader::deactivate_plugin_before_upgrade()
Deactivates a plugin before it is upgraded.
Plugin_Upgrader::delete_old_plugin()
Deletes the old plugin during an upgrade.
Plugin_Upgrader::install()
Install a plugin package.
Plugin_Upgrader::install_strings()
Initialize the installation strings.
Plugin_Upgrader::plugin_info()
Retrieve the path to the file that contains the plugin info.