~aaron-whitehouse/duplicity/bug_884371

* Fixed bug 1466160 - pydrive backend is slow to remove old backup set - with
patch from Kuang-che Wu to implement _delete_list().

added added

removed removed

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drive_file = self.drive.CreateFile({'id': file_id})

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drive_file.auth.service.files().delete(fileId=drive_file['id']).execute()

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def _delete_list(self, filename_list):

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to_remove = set(filename_list)

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for item in self.FilesList():

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if item['title'] not in to_remove:

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continue

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file_id = item['id']

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drive_file = self.drive.CreateFile({'id': file_id})

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drive_file.auth.service.files().delete(fileId=drive_file['id']).execute()

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def _query(self, filename):

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try:

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size = int((item for item in self.FilesList() if item['title'] == filename).next()['fileSize'])