#!/usr/bin/env ruby

require_relative '../lib/gitlab/popen'

full_report_filename, metrics_filename = ARGV
abort 'usage: memory-static <full_report_filename> <metrics_filename>' unless full_report_filename && metrics_filename

full_report, status = Gitlab::Popen.popen(%w(bundle exec derailed bundle:mem))
abort 'failed to execute the benchmark' unless status.zero?

File.open(full_report_filename, 'w') do |f|
  f.write(full_report)
end

stats = /TOP: (?<total_mibs_str>.*) MiB/.match(full_report.lines.first)
abort 'failed to process the benchmark output' unless stats

File.open(metrics_filename, 'a') do |f|
  f.puts "memory_static_total_mb #{stats[:total_mibs_str].to_f.round(1)}"
end