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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
TransferError = Class.new(StandardError)
def execute(new_namespace)
@new_namespace = new_namespace
if @new_namespace.blank?
raise TransferError, 'Please select a new namespace for your project.'
end
unless allowed_transfer?(current_user, project)
raise TransferError, 'Transfer failed, please contact an admin.'
end
transfer(project)
true
rescue Projects::TransferService::TransferError => ex
project.reload
project.errors.add(:new_namespace, ex.message)
false
end
private
def transfer(project)
@old_path = project.path_with_namespace
@old_group = project.group
@new_path = File.join(@new_namespace.try(:full_path) || '', project.path)
@old_namespace = project.namespace
if Project.where(path: project.path, namespace_id: @new_namespace.try(:id)).exists?
raise TransferError.new("Project with same path in target namespace already exists")
end
if project.has_container_registry_tags?
# We currently don'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
attempt_transfer_transaction
end
def attempt_transfer_transaction
Project.transaction do
project.expire_caches_before_rename(@old_path)
update_namespace_and_visibility(@new_namespace)
# Notifications
project.send_move_instructions(@old_path)
# Move main repository
unless move_repo_folder(@old_path, @new_path)
raise TransferError.new('Cannot move project')
end
# Move wiki repo also if present
move_repo_folder("#{@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.full_path, @new_namespace.full_path)
# Move pages
Gitlab::PagesTransfer.new.move_project(project.path, @old_namespace.full_path, @new_namespace.full_path)
project.old_path_with_namespace = @old_path
execute_system_hooks
end
rescue Exception # rubocop:disable Lint/RescueException
rollback_side_effects
raise
ensure
refresh_permissions
end
def allowed_transfer?(current_user, project)
@new_namespace &&
can?(current_user, :change_namespace, project) &&
@new_namespace.id != project.namespace_id &&
current_user.can?(:create_projects, @new_namespace)
end
def update_namespace_and_visibility(to_namespace)
# Apply new namespace id and visibility level
project.namespace = to_namespace
project.visibility_level = to_namespace.visibility_level unless project.visibility_level_allowed_by_group?
project.save!
end
def refresh_permissions
# This ensures we only schedule 1 job for every user that has access to
# the namespaces.
user_ids = @old_namespace.user_ids_for_project_authorizations |
@new_namespace.user_ids_for_project_authorizations
UserProjectAccessChangedService.new(user_ids).execute
end
def rollback_side_effects
rollback_folder_move
update_namespace_and_visibility(@old_namespace)
end
def rollback_folder_move
move_repo_folder(@new_path, @old_path)
move_repo_folder("#{@new_path}.wiki", "#{@old_path}.wiki")
end
def move_repo_folder(from_name, to_name)
gitlab_shell.mv_repository(project.repository_storage_path, from_name, to_name)
end
def execute_system_hooks
SystemHooksService.new.execute_hooks_for(project, :transfer)
end
end
end
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