INIT INIT = 'init' : string The INIT event occurs after a Composer instance is done being initialized The event listener method receives a Composer\EventDispatcher\Event instance.
COMMAND COMMAND = 'command' : string The COMMAND event occurs as a command begins The event listener method receives a Composer\Plugin\CommandEvent instance.
PRE_FILE_DOWNLOAD PRE_FILE_DOWNLOAD = 'pre-file-download' : string The PRE_FILE_DOWNLOAD event occurs before downloading a file The event listener method receives a Composer\Plugin\PreFileDownloadEvent instance.
PRE_COMMAND_RUN PRE_COMMAND_RUN = 'pre-command-run' : string The PRE_COMMAND_RUN event occurs before a command is executed and lets you modify the input arguments/options The event listener method receives a Composer\Plugin\PreCommandRunEvent instance.