Class: RubyMaat::Analysis::Churn::Absolute

Inherits:
BaseAnalysis show all
Defined in:
lib/ruby_maat/analysis/churn.rb

Overview

Absolute churn analysis - code churn trends over time

Instance Method Summary collapse

Instance Method Details

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



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# File 'lib/ruby_maat/analysis/churn.rb', line 8

def analyze(dataset, _options = {})
  # Group by date and sum churn metrics, count commits
  results = {}

  dataset.to_df.each_row do |row|
    date = row["date"]
    added = row["loc_added"] || 0
    deleted = row["loc_deleted"] || 0
    revision = row["revision"]

    results[date] ||= {date: date, added: 0, deleted: 0, revisions: Set.new}
    results[date][:added] += added
    results[date][:deleted] += deleted
    results[date][:revisions] << revision
  end

  # Convert to final format
  final_results = results.values.map do |result|
    {
      date: result[:date],
      added: result[:added],
      deleted: result[:deleted],
      commits: result[:revisions].size
    }
  end

  # Sort by date
  final_results.sort_by! { |r| r[:date] }

  to_csv_data(final_results, i[date added deleted commits])
end