A Ruby method to sanitize a changelog generated from commit messages

SanitizeChangelog.rb

#
  # Extracts ticket numbers (e.g. #ZLA-132) from a changelog generated from commit messages
  #
  def sanitize_changelog(changelog,hashtag,project_ID,delimiter)
    # Convert text to an array
    changelog_array = changelog.split(/\n+/)

    # Clear rows that start with #ZLA-000 aka. version bumps
    changelog_array.delete_if do |row|
      row.start_with?('#ZLA-000')
    end
    
    # Only include rows that start with the desired pattern
    search_pattern = hashtag + project_ID + delimiter
    manipulated_rows = changelog_array.select { |row| row.start_with?(search_pattern) }
    .uniq # Remove duplicates
    .map { |row| row.sub(search_pattern, '') }  # Remove the search_pattern
    .sort_by(&:to_i) # Sort by ID
  
    (["#{manipulated_rows.size} #{project_ID} issues:"] + manipulated_rows).join("\n")
  end