mktree.rb

#!/usr/bin/env bundle exec ruby -I lib:spec

# Simple benchmark utility to create a closure tree based on the topology of the current filesystem

#ENV['NONUKES'] = '1'
require 'spec_helper'
require 'findler'
require 'pathname'

# Returns the current path, split into an array.
# Pathname.new("/a/b/c").path_array = ["a", "b", "c"]
class Pathname
  def path_array
    a = []
    each_filename { |ea| a << ea }
    a
  end
end

cnt = 0
f = Findler.new '/'
iter = f.iterator
Tag.with_advisory_lock('closure_tree') do
  while (nxt = iter.next_file) && ((cnt += 1) < 1000)
    t = Tag.find_or_create_by_path(nxt.path_array)
    puts "created #{nxt.to_s}"
  end
end

puts "Tag.all.size: #{Tag.all.size}"
puts "TagHierarchy.all.size: #{TagHierarchy.all.size}"

puts 'Tag.roots performance:'
puts Benchmark.measure { Tag.roots.size }

puts 'Tag.leaves performance:'
puts Benchmark.measure { Tag.leaves.size }