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module Gitlab
module ImportExport
class ProjectTreeRestorer
attr_reader :project
def initialize(path:, user:)
@path = File.join(path, 'project.json')
@user = user
end
def restore
json = IO.read(@path)
@tree_hash = ActiveSupport::JSON.decode(json)
@project_members = @tree_hash.delete('project_members')
create_relations
end
private
def members_map
@members ||= Gitlab::ImportExport::MembersMapper.map(
exported_members: @project_members, user: @user, project_id: project.id)
end
def create_relations(relation_list = default_relation_list, tree_hash = @tree_hash)
saved = []
relation_list.each do |relation|
next if !relation.is_a?(Hash) && tree_hash[relation.to_s].blank?
if relation.is_a?(Hash)
create_sub_relations(relation, tree_hash)
end
relation_key = relation.is_a?(Hash) ? relation.keys.first : relation
relation_hash = create_relation(relation_key, tree_hash[relation_key.to_s])
saved << project.update_attribute(relation_key, relation_hash)
end
saved.all?
end
def default_relation_list
Gitlab::ImportExport::ImportExportReader.tree.reject { |model| model.is_a?(Hash) && model[:project_members] }
end
def project
@project ||= create_project
end
def create_project
project_params = @tree_hash.reject { |_key, value| value.is_a?(Array) }
project = Gitlab::ImportExport::ProjectFactory.create(
project_params: project_params, user: @user)
project.save
project.import_start
project
end
def create_sub_relations(relation, tree_hash)
tree_hash[relation.keys.first.to_s].each do |relation_item|
relation.values.flatten.each do |sub_relation|
relation_hash = relation_item[sub_relation.to_s]
next if relation_hash.blank?
process_sub_relation(relation_hash, relation_item, sub_relation)
end
end
end
def process_sub_relation(relation_hash, relation_item, sub_relation)
sub_relation_object = nil
if relation_hash.is_a?(Array)
sub_relation_object = create_relation(sub_relation, relation_hash)
else
sub_relation_object = relation_from_factory(sub_relation, relation_hash)
end
relation_item[sub_relation.to_s] = sub_relation_object
end
def create_relation(relation, relation_hash_list)
[relation_hash_list].flatten.map do |relation_hash|
relation_from_factory(relation, relation_hash)
end
end
def relation_from_factory(relation, relation_hash)
Gitlab::ImportExport::RelationFactory.create(
relation_sym: relation, relation_hash: relation_hash.merge('project_id' => project.id), members_map: members_map)
end
end
end
end
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