😧 Mongo BSON dump restore script

gistfile1.rb

#!/usr/bin/env ruby
#
# Little ditty to untar a bunch of mongo bson dumps,
# and then restore them.
#
# Remembers if something was processed before and doesn't
# process it again. (Though mongo will basically due this
# for you 😬)
#
# I'm a bad person and I should feel bad for writing this
# abomination of a script. 😞
#
require "fileutils"
require "pathname"

session_dir = Pathname.new(ARGV[0])
data_dir = session_dir.join("data")
completed_dir = session_dir.join("completed")

[data_dir, completed_dir].select{ |dir| !(dir.exist? && dir.directory?) }
			                   .each do |dir|
                           FileUtils.mkdir dir
                         end

Pathname.glob(session_dir.join("*.tar.gz"))
        .each do |file|
          completed_file = completed_dir.join(file.basename)
          if completed_file.exist?
            if completed_file.size == file.size
              FileUtils.rm_f file
            else
              warn "WARNING: #{file} already imported but was a different size!"
              warn "WARNING: Manual intervention required!"
            end
          else
            puts `tar xzvf #{file.expand_path} -C #{data_dir}`
            if $? == 0
	            puts `mongorestore -d godzilla_ces #{data_dir.join(file.basename(".sessions.tar.gz"), "godzilla_production")}`
              if $? == 0
                FileUtils.mv file, completed_dir, force: true
              else
                warn "There was a problem restoring #{data_dir.join(file.basename(".sessions.tar.gz"))}"
              end
            else
              warn "There was a problem untaring #{file.expand_path}"
            end
          end
        end