71 lines
2.5 KiB
Ruby
71 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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require_relative '../../migration_helpers'
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module RuboCop
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module Cop
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module Migration
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class VersionedMigrationClass < RuboCop::Cop::Base
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include MigrationHelpers
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ENFORCED_SINCE = 2023_01_12_00_00_00
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DOC_LINK = "https://docs.gitlab.com/ee/development/migration_style_guide.html#migration-helpers-and-versioning"
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MSG_INHERIT = "Don't inherit from ActiveRecord::Migration or old versions of Gitlab::Database::Migration. " \
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"Use Gitlab::Database::Migration[2.1] instead. See #{DOC_LINK}."
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MSG_INCLUDE = "Don't include migration helper modules directly. " \
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"Inherit from Gitlab::Database::Migration[2.1] instead. See #{DOC_LINK}."
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GITLAB_MIGRATION_CLASS = 'Gitlab::Database::Migration'
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ACTIVERECORD_MIGRATION_CLASS = 'ActiveRecord::Migration'
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CURRENT_MIGRATION_VERSION = 2.1 # Should be the same value as Gitlab::Database::Migration.current_version
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def_node_search :includes_helpers?, <<~PATTERN
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(send nil? :include
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(const
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(const
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(const nil? :Gitlab) :Database) :MigrationHelpers))
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PATTERN
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def on_class(node)
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return unless relevant_migration?(node)
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return unless activerecord_migration_class?(node) || old_version_migration_class?(node)
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add_offense(node, message: MSG_INHERIT)
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end
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def on_send(node)
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return unless relevant_migration?(node)
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add_offense(node, message: MSG_INCLUDE) if includes_helpers?(node)
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end
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private
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def relevant_migration?(node)
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in_migration?(node) && version(node) >= ENFORCED_SINCE
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end
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def activerecord_migration_class?(node)
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superclass(node) == ACTIVERECORD_MIGRATION_CLASS
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end
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def superclass(class_node)
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_, *others = class_node.descendants
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others.find { |node| node.const_type? && node&.const_name != 'Types' }&.const_name
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end
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# Returns true for any parent class of format Gitlab::Database::Migration[version] if version < current_version
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def old_version_migration_class?(class_node)
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parent_class_node = class_node.parent_class
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return false unless parent_class_node.send_type? && parent_class_node.arguments.last.float_type?
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return false unless parent_class_node.children[0].const_name == GITLAB_MIGRATION_CLASS
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parent_class_node.arguments[0].value < CURRENT_MIGRATION_VERSION
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end
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end
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end
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end
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end
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