134 lines
5.0 KiB
Ruby
134 lines
5.0 KiB
Ruby
module Gitlab
|
|
module ImportExport
|
|
class ProjectTreeRestorer
|
|
def initialize(user:, shared:, project:)
|
|
@path = File.join(shared.export_path, 'project.json')
|
|
@user = user
|
|
@shared = shared
|
|
@project = project
|
|
end
|
|
|
|
def restore
|
|
begin
|
|
json = IO.read(@path)
|
|
@tree_hash = ActiveSupport::JSON.decode(json)
|
|
rescue => e
|
|
Rails.logger.error("Import/Export error: #{e.message}")
|
|
raise Gitlab::ImportExport::Error.new('Incorrect JSON format')
|
|
end
|
|
|
|
@project_members = @tree_hash.delete('project_members')
|
|
|
|
ActiveRecord::Base.no_touching do
|
|
create_relations
|
|
end
|
|
rescue => e
|
|
@shared.error(e)
|
|
false
|
|
end
|
|
|
|
def restored_project
|
|
@restored_project ||= restore_project
|
|
end
|
|
|
|
private
|
|
|
|
def members_mapper
|
|
@members_mapper ||= Gitlab::ImportExport::MembersMapper.new(exported_members: @project_members,
|
|
user: @user,
|
|
project: restored_project)
|
|
end
|
|
|
|
# Loops through the tree of models defined in import_export.yml and
|
|
# finds them in the imported JSON so they can be instantiated and saved
|
|
# in the DB. The structure and relationships between models are guessed from
|
|
# the configuration yaml file too.
|
|
# Finally, it updates each attribute in the newly imported project.
|
|
def create_relations
|
|
saved = []
|
|
default_relation_list.each do |relation|
|
|
next unless relation.is_a?(Hash) || @tree_hash[relation.to_s].present?
|
|
|
|
create_sub_relations(relation, @tree_hash) if relation.is_a?(Hash)
|
|
|
|
relation_key = relation.is_a?(Hash) ? relation.keys.first : relation
|
|
relation_hash = create_relation(relation_key, @tree_hash[relation_key.to_s])
|
|
saved << restored_project.append_or_update_attribute(relation_key, relation_hash)
|
|
end
|
|
saved.all?
|
|
end
|
|
|
|
def default_relation_list
|
|
Gitlab::ImportExport::Reader.new(shared: @shared).tree.reject do |model|
|
|
model.is_a?(Hash) && model[:project_members]
|
|
end
|
|
end
|
|
|
|
def restore_project
|
|
return @project unless @tree_hash
|
|
|
|
@project.update(project_params)
|
|
@project
|
|
end
|
|
|
|
def project_params
|
|
@tree_hash.reject do |key, value|
|
|
# return params that are not 1 to many or 1 to 1 relations
|
|
value.is_a?(Array) || key == key.singularize
|
|
end
|
|
end
|
|
|
|
# Given a relation hash containing one or more models and its relationships,
|
|
# loops through each model and each object from a model type and
|
|
# and assigns its correspondent attributes hash from +tree_hash+
|
|
# Example:
|
|
# +relation_key+ issues, loops through the list of *issues* and for each individual
|
|
# issue, finds any subrelations such as notes, creates them and assign them back to the hash
|
|
#
|
|
# Recursively calls this method if the sub-relation is a hash containing more sub-relations
|
|
def create_sub_relations(relation, tree_hash)
|
|
relation_key = relation.keys.first.to_s
|
|
return if tree_hash[relation_key].blank?
|
|
|
|
[tree_hash[relation_key]].flatten.each do |relation_item|
|
|
relation.values.flatten.each do |sub_relation|
|
|
# We just use author to get the user ID, do not attempt to create an instance.
|
|
next if sub_relation == :author
|
|
|
|
create_sub_relations(sub_relation, relation_item) if sub_relation.is_a?(Hash)
|
|
|
|
relation_hash, sub_relation = assign_relation_hash(relation_item, sub_relation)
|
|
relation_item[sub_relation.to_s] = create_relation(sub_relation, relation_hash) unless relation_hash.blank?
|
|
end
|
|
end
|
|
end
|
|
|
|
def assign_relation_hash(relation_item, sub_relation)
|
|
if sub_relation.is_a?(Hash)
|
|
relation_hash = relation_item[sub_relation.keys.first.to_s]
|
|
sub_relation = sub_relation.keys.first
|
|
else
|
|
relation_hash = relation_item[sub_relation.to_s]
|
|
end
|
|
[relation_hash, sub_relation]
|
|
end
|
|
|
|
def create_relation(relation, relation_hash_list)
|
|
relation_array = [relation_hash_list].flatten.map do |relation_hash|
|
|
Gitlab::ImportExport::RelationFactory.create(relation_sym: relation.to_sym,
|
|
relation_hash: parsed_relation_hash(relation_hash),
|
|
members_mapper: members_mapper,
|
|
user: @user,
|
|
project_id: restored_project.id)
|
|
end.compact
|
|
|
|
relation_hash_list.is_a?(Array) ? relation_array : relation_array.first
|
|
end
|
|
|
|
def parsed_relation_hash(relation_hash)
|
|
relation_hash.merge!('group_id' => restored_project.group.try(:id), 'project_id' => restored_project.id)
|
|
end
|
|
end
|
|
end
|
|
end
|