Analyse Tarsnap Usage

analyze-tarsnap-usage.rb

require 'open3'
require 'pp'

def get_stats(archive_name)
  cmd = "sudo tarsnap --print-stats -f #{archive_name}"
  stats = run_cmd(cmd)[3,4]
end

def get_uniq_comp_size(stats)
  stats.last.split(/\s+/)[-1]
end

def get_archive_storj_size(archive_name)
  stats = get_stats(archive_name)
  size = get_uniq_comp_size(stats)
  size
end

def run_cmd(cmd)
  out = nil
  Open3.popen3(cmd) do |stdin, stdout, stderr, wait_thr|
    pid = wait_thr.pid

    out = stdout.readlines
    err = stderr.readlines

    exit_status = wait_thr.value
  end
  out
end

list = File.read('sorted').split("\n")

list.each do |archive_name|
  size = get_archive_storj_size(archive_name)
  puts "#{archive_name}: #{size}\n"
end