45 lines
1.1 KiB
Ruby
45 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Middleware
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class MemoryReport
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def initialize(app)
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@app = app
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end
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def call(env)
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request = ActionDispatch::Request.new(env)
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return @app.call(env) unless rendering_memory_profiler?(request)
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begin
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require 'memory_profiler'
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report = MemoryProfiler.report do
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@app.call(env)
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end
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report = report_to_string(report)
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headers = { 'Content-Type' => 'text/plain' }
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[200, headers, [report]]
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rescue StandardError => e
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::Gitlab::ErrorTracking.track_exception(e)
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[500, { 'Content-Type' => 'text/plain' }, ["Could not generate memory report: #{e}"]]
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end
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end
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private
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def rendering_memory_profiler?(request)
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Rails.env.development? && request.params['performance_bar'] == 'memory'
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end
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def report_to_string(report)
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io = StringIO.new
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report.pretty_print(io, detailed_report: true, scale_bytes: true, normalize_paths: true)
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io.string
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end
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end
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end
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end
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