Module: Rails::Hyperdrive::EagerFootprint

Defined in:
lib/rails/hyperdrive/eager_footprint.rb

Overview

Sizes the always-in-context set — the index-included guidelines — and returns the report as lines for a shell to print.

Defined Under Namespace

Classes: Line

Constant Summary collapse

TOTAL_WARN_TOKENS =

Soft cap on the assembled eager set — roughly six at-the-limit guidelines, or ~5% of a 200k context window.

10_000

Class Method Summary collapse

Class Method Details

.approx_tokens(body) ⇒ Object 



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# File 'lib/rails/hyperdrive/eager_footprint.rb', line 16

def approx_tokens(body)
  (body.to_s.length / 4.0).ceil
end

.lines(guidelines:) ⇒ Object 



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# File 'lib/rails/hyperdrive/eager_footprint.rb', line 20

def lines(guidelines:)
  return [] if guidelines.empty?

  tokens = guidelines.sum { |e| approx_tokens(e[:body]) }

  result = [Line.new(
    status: :eager,
    message: "#{guidelines.size} guideline(s), ~#{tokens} tokens always in context",
    color: :cyan
  )]
  result << over_budget_line(guidelines) if tokens > TOTAL_WARN_TOKENS
  result
end