clean_images.rb

## This takes the directory repos/chef-web-docs/chef_master/source
## and the directory repos/chef-web-docs/images.
## Produces a list of unused images

# require set
require 'set'
require 'fileutils'

## Set the environment to your path
DIRECTORY = ENV.fetch('HABITAT',
                      '~/Users/kimberlygarmoe/repos/habitat/components/docs-chef-io')

# initialize set
# used = Set.new
# images = Set.new
search_text = %r{images}
# fileutils.
# create an array of images used in the docs
# clean up the elements
Dir.glob("#{DIRECTORY}  /content/habitat/*.md").each do |file|
  File.readlines(file).each do |line|
    if line =~ search_text then
      # A lot of work to clean up the file names.
      # line = line.sub("/images/", '')
      # line = line.gsub(/^\s\s\s\s/, '')
      # line = line.gsub(/^\s\s\s/, '')
      # line = line.gsub(/^\s\s/, '')
      # line = line.gsub(/^\s/, '')
      # line = line.gsub(/^* - /, '')
      # line = line.gsub(/\*/, '')
      # line = line.gsub(/(\/)..(\/)images(\/)/, '')
      # saves files to used
      # used << line.strip
      puts line
    end
  end
end

# Create a sorted array of images in the image folder

# Dir.glob("#{DIRECTORY}/images/*.*").each do |image|
#   image = image.sub("#{DIRECTORY}/images/", '')
#   images << image.strip
# end

# remove nil and '' values from Set (there could be 1 of each)
# images.reject!(&:nil?) && images.reject!(&:empty?)
# used.reject!(&:nil?) && used.reject!(&:empty?)

# Count of arrays & different
# puts "#\n# IMAGES\n#\n"
# puts images.to_a
# puts "number of images: #{images.length}\n\n"

# puts "#\n# USED\n#\n"
# puts used.to_a
# puts "number of used: #{used.length}\n\n"

# Used images that are used but do not exist
# unused = images - used
# puts "#\n# UNUSED\n#\n"
# puts unused.to_a.sort!
# puts "number of unused: #{unused.length}\n"
# puts "difference between images and used: #{images.length - used.length}\n\n"

# puts (images.count - used.count)

# Dir.mkdir('image_archive') unless File.exists?('image_archive')


# unused.each do |u|
#   FileUtils.mv("#{DIRECTORY}/images/#{u}", "image_archive/")
# end

# unused = unused.to_a.join(",");
# FileUtils.mv(unused, '/image_archive/')