sort_by_time.rb

require 'json'
require 'time'

unless ARGV.length == 1
  $stderr.puts("Usage: ruby #{File.basename($PROGRAM_NAME)} JSON")
  abort
end

entries = []
begin
  entries = JSON.parse(File.read(ARGV[0], encoding: 'UTF-8'))
rescue => e
  $stderr.puts("#{filename} #{e}")
end

i = 0
entries.sort_by! do |entry|
  [entry['timestamp'], i += 1]
end

puts(JSON.generate(entries))

supplement_user_host.rb

require 'json'
require 'time'

unless ARGV.length == 1
  $stderr.puts("Usage: ruby #{File.basename($PROGRAM_NAME)} JSON")
  abort
end

entries = []
begin
  entries = JSON.parse(File.read(ARGV[0], encoding: 'UTF-8'))
rescue => e
  $stderr.puts("#{filename} #{e}")
end

# {'nick' => ['user', 'host']
irc_users = {}

entries.map! do |entry|
  if entry['user'].nil? && irc_users.has_key?(entry['nick'])
    entry['user'], entry['host'] = irc_users[entry['nick']]
  end

  case entry['type']
  when 'JOIN'
    irc_users[entry['nick']] = [entry['user'], entry['host']]
  when 'PART', 'QUIT'
    irc_users.delete(entry['nick'])
  when 'NICK'
    if irc_users.has_key?(entry['nick'])
      irc_users[entry['message']] = irc_users.delete(entry['nick'])
    end
  end

  entry
end

puts(JSON.pretty_generate(entries))