Class: RubyMaat::Analysis::Effort::MainDeveloperByRevisions

Inherits:
BaseAnalysis
  • Object
show all
Defined in:
lib/ruby_maat/analysis/effort.rb

Overview

Main developer by revisions - primary contributor per entity (by commit count)

Instance Method Summary collapse

Instance Method Details

#analyze(dataset, options = {}) ⇒ Object 



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# File 'lib/ruby_maat/analysis/effort.rb', line 59

def analyze(dataset, options = {})
  min_revs = options[:min_revs] || 5

  # Group by entity and author, count revisions
  entity_authors = {}

  dataset.to_df.each_row do |row|
    entity = row["entity"]
    author = row["author"]
    revision = row["revision"]

    entity_authors[entity] ||= {}
    entity_authors[entity][author] ||= Set.new
    entity_authors[entity][author] << revision
  end

  # Find main developer for each entity
  results = []

  entity_authors.each do |entity, authors|
    total_revisions = authors.values.sum(&:size)
    next if total_revisions < min_revs

    # Find author with most revisions
    main_author, revisions = authors.max_by { |_author, revs| revs.size }

    total_revisions = authors.values.sum(&:size)

    results << {
      entity: entity,
      "main-dev": main_author,
      added: revisions.size, # Number of revisions by main dev
      "total-added": total_revisions,
      ownership: total_revisions.positive? ? (revisions.size.to_f / total_revisions).round(2) : 0.0
    }
  end

  # Sort by number of revisions descending
  results.sort_by! { |r| -r[:added] }

  to_csv_data(results, %i[entity main-dev added total-added ownership])
end