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# frozen_string_literal: true
module Gitlab
module Database
module MigrationHelpers
module RestrictGitlabSchema
extend ActiveSupport::Concern
MigrationSkippedError = Class.new(StandardError)
included do
class_attribute :allowed_gitlab_schemas
end
class_methods do
def restrict_gitlab_migration(gitlab_schema:)
unless Gitlab::Database::GitlabSchema.schema_names.include?(gitlab_schema)
raise "Unknown 'gitlab_schema: #{gitlab_schema}' specified. It needs to be one of: " \
"#{Gitlab::Database::GitlabSchema.schema_names.to_a}"
end
self.allowed_gitlab_schemas = [gitlab_schema]
end
end
def migrate(direction)
if unmatched_schemas.any?
# TODO: Today skipping migration would raise an exception.
# Ideally, skipped migration should be ignored (not loaded), or softly ignored.
# Read more in: https://gitlab.com/gitlab-org/gitlab/-/issues/355014
raise MigrationSkippedError, "Current migration is skipped since it modifies "\
"'#{self.class.allowed_gitlab_schemas}' which is outside of '#{allowed_schemas_for_connection}'"
end
Gitlab::Database::QueryAnalyzer.instance.within([validator_class]) do
validator_class.allowed_gitlab_schemas = self.allowed_gitlab_schemas
super
end
end
private
def validator_class
Gitlab::Database::QueryAnalyzers::RestrictAllowedSchemas
end
def unmatched_schemas
(self.allowed_gitlab_schemas || []) - allowed_schemas_for_connection
end
def allowed_schemas_for_connection
Gitlab::Database.gitlab_schemas_for_connection(connection)
end
end
end
end
end
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