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#!/usr/bin/env ruby
# frozen_string_literal: true
require 'json'
require 'optparse'
class AverageReports
attr_reader :initial_report_file, :initial_report_data, :report_file_to_data_map
def initialize(initial_report_file:, new_report_files:)
@initial_report_file = initial_report_file
@initial_report_data = parse_json_from_report_file(initial_report_file)
@report_file_to_data_map = new_report_files.each_with_object({}) do |report_file, map|
next unless File.exist?(report_file)
map[report_file] ||= parse_json_from_report_file(report_file)
end
end
def execute
puts "Updating #{initial_report_file} with #{report_file_to_data_map.size} new reports..."
compound_reports = report_file_to_data_map.keys.each_with_object({}) do |report_file, result|
report = report_file_to_data_map[report_file]
report.each do |spec, duration|
result[spec] ||= [*initial_report_data[spec]]
result[spec] << duration
end
puts "Updated #{report.size} data points from #{report_file}"
end
averaged_reports = compound_reports.transform_values do |durations|
durations.sum.to_f / durations.size
end
File.write(initial_report_file, JSON.pretty_generate(averaged_reports))
puts "Saved #{initial_report_file}."
averaged_reports
end
private
def parse_json_from_report_file(report_file)
JSON.parse(File.read(report_file))
end
end
if $PROGRAM_NAME == __FILE__
options = {}
OptionParser.new do |opts|
opts.on("-i", "--initial-report initial_report_file", String, 'Initial report file name') do |value|
options[:initial_report_file] = value
end
opts.on("-n", "--new-reports new_report_files", Array, 'New report file names delimited by ","') do |values|
options[:new_report_files] = values
end
end.parse!
AverageReports.new(**options).execute
end
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