Module: Polyrun::Partition::TimingDiagnostics

Defined in:
lib/polyrun/partition/timing_diagnostics.rb

Overview

Stale / missing timing coverage before cost-based partition.

Constant Summary collapse

SUSPICIOUS_BASENAME = 
/system|feature|integration|playwright|capybara/i

Class Method Summary collapse

Class Method Details

.analyze(items:, costs:, timing_path:, root:, granularity: :file) ⇒ Hash

rubocop:disable Metrics/AbcSize -- timing coverage scan

Returns:

  • (Hash) —

    analysis result with :missing_files, :stale_entries, :coverage, etc.



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 13

def analyze(items:, costs:, timing_path:, root:, granularity: :file)
  root = File.expand_path(root || Dir.pwd)
  g = TimingKeys.normalize_granularity(granularity)
  item_keys = items.map { |p| lookup_key(p, root, g) }
  cost_keys = costs&.keys || []

  if g == :example
    item_keys_set = item_keys.to_set
    cost_keys_set = cost_keys.to_set
    cost_file_keys_set = cost_keys.map { |k| file_from_locator(k) }.uniq.to_set
    known = item_keys.count do |ik|
      cost_keys_set.include?(ik) || cost_file_keys_set.include?(file_from_locator(ik))
    end
    missing = item_keys.reject do |ik|
      cost_keys_set.include?(ik) || cost_file_keys_set.include?(file_from_locator(ik))
    end
    stale = cost_keys.reject { |k| item_keys_set.include?(k) }
  else
    known = item_keys.count { |k| costs&.key?(k) }
    missing = item_keys.reject { |k| costs&.key?(k) }
    stale = cost_keys.reject { |k| item_keys.include?(k) }
  end
  total = item_keys.size

  coverage = total.zero? ? 1.0 : known.to_f / total
  default_weight = default_weight_for(costs)
  suspicious = missing.select { |k| suspicious_path?(k) }

  {
    missing_files: missing,
    stale_entries: stale,
    coverage: coverage,
    known_files: known,
    total_files: total,
    timing_file_age: timing_file_age(timing_path),
    default_weight: default_weight,
    suspicious_missing: suspicious
  }
end

.default_weight_for(costs) ⇒ Object 



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 107

def default_weight_for(costs)
  vals = costs&.values || []
  return 1.0 if vals.empty?

  vals.sum / vals.size.to_f
end

.emit_warnings!(analysis) ⇒ Object

rubocop:disable Metrics/AbcSize -- stale/missing timing warnings



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 55

def emit_warnings!(analysis)
  cov = analysis[:coverage]
  if cov < 0.50
    Polyrun::Log.warn "polyrun: timing coverage #{format_percent(cov)} — binpack quality low; run full timing capture first"
  elsif cov < 0.80
    Polyrun::Log.warn "polyrun: timing coverage #{format_percent(cov)} (< 80%)"
  end

  dw = analysis[:default_weight]
  Polyrun::Log.warn "polyrun: default weight for missing files: #{format("%.4f", dw)}s (mean of known costs)"

  if analysis[:timing_file_age]
    Polyrun::Log.warn "polyrun: timing file age: #{analysis[:timing_file_age]}"
  end

  missing = analysis[:missing_files]
  unless missing.empty?
    Polyrun::Log.warn "polyrun: #{missing.size} file(s) without timing data"
    missing.first(10).each { |p| Polyrun::Log.warn "  missing: #{p}" }
    Polyrun::Log.warn "  ..." if missing.size > 10
  end

  stale = analysis[:stale_entries]
  unless stale.empty?
    Polyrun::Log.warn "polyrun: #{stale.size} timing entry(ies) for files not in suite"
    stale.first(5).each { |p| Polyrun::Log.warn "  stale: #{p}" }
    Polyrun::Log.warn "  ..." if stale.size > 5
  end

  suspicious = analysis[:suspicious_missing]
  return if suspicious.empty?

  Polyrun::Log.warn "polyrun: suspicious missing timing (#{suspicious.size} slow-path pattern(s)):"
  suspicious.first(5).each { |p| Polyrun::Log.warn "  suspicious: #{p}" }
end

.file_from_locator(key) ⇒ Object 



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 96

def file_from_locator(key)
  s = key.to_s
  m = s.match(/\A(.+):(\d+)\z/)
  m ? m[1] : s
end

.format_age(sec) ⇒ Object 



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 124

def format_age(sec)
  if sec < 3600
    format("%.0fm ago", sec / 60.0)
  elsif sec < 86_400
    format("%.1fh ago", sec / 3600.0)
  else
    format("%.1fd ago", sec / 86_400.0)
  end
end

.format_percent(ratio) ⇒ Object 



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 134

def format_percent(ratio)
  format("%.1f%%", ratio * 100.0)
end

.lookup_key(path, root, granularity) ⇒ Object

rubocop:enable Metrics/AbcSize



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 92

def lookup_key(path, root, granularity)
  TimingKeys.normalize_locator(path.to_s, root, granularity)
end

.suspicious_path?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 102

def suspicious_path?(key)
  base = File.basename(file_from_locator(key))
  base.match?(SUSPICIOUS_BASENAME)
end

.timing_file_age(timing_path) ⇒ Object 



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# File 'lib/polyrun/partition/timing_diagnostics.rb', line 114

def timing_file_age(timing_path)
  return nil unless timing_path

  abs = File.expand_path(timing_path.to_s, Dir.pwd)
  return nil unless File.file?(abs)

  age_sec = Time.now - File.mtime(abs)
  format_age(age_sec)
end