gistfile1.txt

#!/usr/bin/env ruby

require "find"
require "pathname"

require "parallel"

RB_EXT_NAMES = %w[.rb .ru .gemspec .rake .cmd .gemfile .thor]
C_EXT_NAMES = %w[.c .h .cpp .hpp]

Parallel.map(Dir.glob("latest-gem/*").shuffle) do |dir|
  Find.find(dir) {|fn|
    st = File.lstat(fn)
    if st.file?
      if C_EXT_NAMES.any?{|ext| fn.end_with?(ext)}
        next
      elsif !(RB_EXT_NAMES.any?{|ext| fn.end_with?(ext)} || Pathname(fn).extname.empty?) ||
              fn =~ /vendor\/bundle/ || fn =~ /vendor\/ruby\// || fn =~ /bundle\/ruby/
        File.unlink fn
        puts "removed: #{fn}"
        next
      end
    end
  }
end