Class: TestProf::Autopilot::StackProf::Report

Inherits:
StackProf::Report
  • Object
show all
Extended by:
ReportBuilder
Defined in:
lib/test_prof/autopilot/stack_prof/report.rb

Constant Summary collapse

ARTIFACT_FILE = 
"stack_prof_report.dump"

Constants included from ReportBuilder

ReportBuilder::ARTIFACT_MISSING_HINT

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ReportBuilder

build

Constructor Details

#initialize(data) ⇒ Report

Returns a new instance of Report.



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 17

def initialize(data)
  @type = :stack_prof
  super
end

Instance Attribute Details

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 15

def type
  @type
end

Class Method Details

.build ⇒ Object 



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 22

def self.build
  new(Marshal.load(fetch_report))
end

Instance Method Details

#empty_frame_from(frame) ⇒ Object 



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 112

def empty_frame_from(frame)
  frame.slice(:name, :file, :line).merge(
    total_samples: 0,
    samples: 0
  )
end

#frames_to_fingerprints(frames) ⇒ Object 



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 104

def frames_to_fingerprints(frames)
  frames.each_with_object({}) do |(id, frame), hash|
    fingerprint = [frame[:name], frame[:file], frame[:line]].compact.map(&:to_s).join("/")
    hash[fingerprint] = frame.merge(id: id)
    hash
  end
end

#generate_ids_mapping(frames, other_frames) ⇒ Object 



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 93

def generate_ids_mapping(frames, other_frames)
  old_fingerprints = frames_to_fingerprints(frames)
  new_fingerprints = frames_to_fingerprints(other_frames)

  new_fingerprints.each_with_object({}) do |(fingerprint, frame), hash|
    next hash unless old_fingerprints[fingerprint]

    hash[frame[:id]] = old_fingerprints[fingerprint][:id]
  end
end

#merge(other) ⇒ Object 



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# File 'lib/test_prof/autopilot/stack_prof/report.rb', line 26

def merge(other)
  ids_mapping = generate_ids_mapping(data[:frames], other.data[:frames])

  frames = data[:frames].dup

  other.data[:frames].each do |id, new_frame|
    frame =
      if ids_mapping[id]
        frames[ids_mapping[id]]
      else
        frames[id] = empty_frame_from(new_frame)
      end

    frame[:total_samples] += new_frame[:total_samples]
    frame[:samples] += new_frame[:samples]

    if new_frame[:edges]
      edges = (frame[:edges] ||= {})

      new_frame[:edges].each do |edge, weight|
        old_edge = ids_mapping[edge]

        if edges[old_edge]
          edges[old_edge] += weight
        else
          edges[old_edge] = weight
        end
      end
    end

    if new_frame[:lines]
      lines = (frame[:lines] ||= {})

      new_frame[:lines].each do |line, weight|
        old_line = ids_mapping[line]

        lines[old_line] =
          if lines[old_line]
            add_lines(lines[old_line], weight)
          else
            weight
          end
      end
    end
  end

  converted_raw = other.data[:raw].map do |raw|
    ids_mapping[raw] || raw
  end

  d1, d2 = data, other.data
  data = {
    version: version,
    mode: d1[:mode],
    interval: d1[:interval],
    samples: d1[:samples] + d2[:samples],
    gc_samples: d1[:gc_samples] + d2[:gc_samples],
    missed_samples: d1[:missed_samples] + d2[:missed_samples],
    metadata: d1[:metadata].merge(d2[:metadata]),
    frames: frames,
    raw: d1[:raw] + converted_raw,
    raw_timestamp_deltas: d1[:raw_timestamp_deltas] + d2[:raw_timestamp_deltas]
  }

  self.class.new(data)
end