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# Projects::TransferService class
#
# Used for transfer project to another namespace
#
# Ex.
# # Move projects to namespace with ID 17 by user
# Projects::TransferService.new(project, user, namespace_id: 17).execute
#
module Projects
class TransferService < BaseService
include Gitlab::ShellAdapter
class TransferError < StandardError; end
def execute(new_namespace)
if allowed_transfer?(current_user, project, new_namespace)
transfer(project, new_namespace)
else
project.errors.add(:new_namespace, 'is invalid')
false
end
rescue Projects::TransferService::TransferError => ex
project.reload
project.errors.add(:new_namespace, ex.message)
false
end
def transfer(project, new_namespace)
Project.transaction do
old_path = project.path_with_namespace
old_namespace = project.namespace
old_group = project.group
new_path = File.join(new_namespace.try(:path) || '', project.path)
if Project.where(path: project.path, namespace_id: new_namespace.try(:id)).present?
raise TransferError.new("Project with same path in target namespace already exists")
end
if project.has_container_registry_tags?
# we currently doesn't support renaming repository if it contains tags in container registry
raise TransferError.new('Project cannot be transferred, because tags are present in its container registry')
end
project.expire_caches_before_rename(old_path)
# Apply new namespace id and visibility level
project.namespace = new_namespace
project.visibility_level = new_namespace.visibility_level unless project.visibility_level_allowed_by_group?
project.save!
# Notifications
project.send_move_instructions(old_path)
# Move main repository
unless gitlab_shell.mv_repository(project.repository_storage_path, old_path, new_path)
raise TransferError.new('Cannot move project')
end
# Move wiki repo also if present
gitlab_shell.mv_repository(project.repository_storage_path, "#{old_path}.wiki", "#{new_path}.wiki")
# Move missing group labels to project
Labels::TransferService.new(current_user, old_group, project).execute
# Move uploads
Gitlab::UploadsTransfer.new.move_project(project.path, old_namespace.path, new_namespace.path)
# Move pages
Gitlab::PagesTransfer.new.move_project(project.path, old_namespace.path, new_namespace.path)
project.old_path_with_namespace = old_path
SystemHooksService.new.execute_hooks_for(project, :transfer)
true
end
end
def allowed_transfer?(current_user, project, namespace)
namespace &&
can?(current_user, :change_namespace, project) &&
namespace.id != project.namespace_id &&
current_user.can?(:create_projects, namespace)
end
end
end
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