41 lines
1.6 KiB
Ruby
41 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Graphql
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module CallsGitaly
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class Instrumentation
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# Check if any `calls_gitaly: true` declarations need to be added
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# Do nothing if a constant complexity was provided
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def instrument(_type, field)
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type_object = field.metadata[:type_class]
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return field unless type_object.respond_to?(:calls_gitaly?)
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return field if type_object.constant_complexity? || type_object.calls_gitaly?
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old_resolver_proc = field.resolve_proc
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gitaly_wrapped_resolve = -> (typed_object, args, ctx) do
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previous_gitaly_call_count = Gitlab::GitalyClient.get_request_count
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result = old_resolver_proc.call(typed_object, args, ctx)
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current_gitaly_call_count = Gitlab::GitalyClient.get_request_count
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calls_gitaly_check(type_object, current_gitaly_call_count - previous_gitaly_call_count)
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result
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end
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field.redefine do
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resolve(gitaly_wrapped_resolve)
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end
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end
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def calls_gitaly_check(type_object, calls)
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return if calls < 1
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# Will inform you if there needs to be `calls_gitaly: true` as a kwarg in the field declaration
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# if there is at least 1 Gitaly call involved with the field resolution.
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error = RuntimeError.new("Gitaly is called for field '#{type_object.name}' on #{type_object.owner.try(:name)} - please either specify a constant complexity or add `calls_gitaly: true` to the field declaration")
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Gitlab::ErrorTracking.track_and_raise_for_dev_exception(error)
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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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