Dear Galaxy Developers,

Because of specific use case, our transfer tool need to keep the datasets in a different location instead of the default location, so we'd like to purge datasets according to its "external_filename" (we found this column in the dataset table in the database). Is there a way or some code to modify so that when we try to purge a dataset or a history in Galaxy, the file located at a dataset's external_filename can also be deleted?

Thanks in advance,

Mark Xiao

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