release.py
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release.py
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	# Copyright (C) 2022 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

	from typing import Union

	from swh.graphql.backends import archive

	from .base_node import BaseSWHNode
	from .snapshot_branch import SnapshotBranchNode


	class BaseReleaseNode(BaseSWHNode):
	"""
	Base resolver for all the release nodes
	"""

	def _get_release_by_id(self, release_id):
	return (archive.Archive().get_releases([release_id]) or None)[0]

	@property
	def target_hash(self):
	return self._node.target

	@property
	def targetType(self): # To support the schema naming convention
	return self._node.target_type.value

	def is_type_of(self):
	# is_type_of is required only when resolving a UNION type
	# This is for ariadne to return the right type
	return "Release"


	class ReleaseNode(BaseReleaseNode):
	"""
	Node resolver for a release requested directly with its SWHID
	"""

	def _get_node_data(self):
	return self._get_release_by_id(self.kwargs.get("swhid").object_id)


	class TargetReleaseNode(BaseReleaseNode):
	"""
	Node resolver for a release requested as a target
	"""

	obj: Union[SnapshotBranchNode, BaseReleaseNode]

	def _get_node_data(self):
	# self.obj.target_hash is the requested release id
	return self._get_release_by_id(self.obj.target_hash)