copier.py
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copier.py
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	# Copyright (C) 2015-2016 The Software Heritage developers
	# See the AUTHORS file at the top-level directory of this distribution
	# License: GNU General Public License version 3, or any later version
	# See top-level LICENSE file for more information


	class ArchiverCopier():
	""" This archiver copy some files into a remote objstorage
	in order to get a backup.
	"""
	def __init__(self, source, destination, content_ids):
	""" Create a Copier for the archiver

	Args:
	source (ObjStorage): source storage to get the contents.
	destination (ObjStorage): Storage where the contents will
	be copied.
	content_ids: list of content's id to archive.
	"""
	self.source = source
	self.destination = destination
	self.content_ids = content_ids

	def run(self):
	""" Do the copy on the backup storage.

	Run the archiver copier in order to copy the required content
	into the current destination.
	The content which corresponds to the sha1 in self.content_ids
	will be fetched from the master_storage and then copied into
	the backup object storage.

	Returns:
	A boolean that indicates if the whole content have been copied.
	"""
	try:
	for content_id in self.content_ids:
	content = self.source.get(content_id)
	self.destination.add(content, content_id)
	except:
	return False
	return True