Find missing script references in unity prefabs

check_references.rb

#!/bin/env ruby

guids = {}
dir = File.dirname(__FILE__) + "/../../unity/Assets/**/*.meta"
Dir.glob(dir, File::FNM_DOTMATCH).each do |script|
  if File.read(script) =~ /guid: ([\h]+$)/m
    guids[$1] = $1
  end
end

dir = File.dirname(__FILE__) + "/../../unity/Assets/**/*.prefab"
Dir.glob(dir, File::FNM_DOTMATCH).each do |prefab|
  if File.read(prefab) =~ /m_Script: {.*guid: ([\h]+),/
    puts "Possibly missing script in prefab #{prefab} guid #{$1}" unless guids[$1]
  end
end

dir = File.dirname(__FILE__) + "/../../unity/Assets/**/*.unity"
Dir.glob(dir, File::FNM_DOTMATCH).each do |prefab|
  if File.read(prefab) =~ /m_Script: {.*guid: ([\h]+),/
    puts "Possibly missing script in scene #{prefab} guid #{$1}" unless guids[$1]
  end
end