fileutils.gemspec in fileutils-1.3.0 vs fileutils.gemspec in fileutils-1.4.0

@@ -1,30 +1,31 @@
 # frozen_string_literal: true
 
-begin
-  require_relative "lib/fileutils/version"
-rescue LoadError
-  # for Ruby core repository
-  require_relative "version"
+source_version = ["", "lib/"].find do |dir|
+  begin
+    break File.open(File.join(__dir__, "#{dir}fileutils.rb")) {|f|
+      f.gets("\n  VERSION = ")
+      f.gets[/\s*"(.+)"/, 1]
+    }
+  rescue Errno::ENOENT
+  end
 end
 
 Gem::Specification.new do |s|
   s.name = "fileutils"
-  s.version = FileUtils::VERSION
+  s.version = source_version
   s.summary = "Several file utility methods for copying, moving, removing, etc."
   s.description = "Several file utility methods for copying, moving, removing, etc."
 
   s.require_path = %w{lib}
-  s.files = ["LICENSE.txt", "README.md", "Rakefile", "fileutils.gemspec", "lib/fileutils.rb", "lib/fileutils/version.rb"]
+  s.files = ["LICENSE.txt", "README.md", "Rakefile", "fileutils.gemspec", "lib/fileutils.rb"]
   s.required_ruby_version = ">= 2.3.0"
 
   s.authors = ["Minero Aoki"]
   s.email = [nil]
   s.homepage = "https://github.com/ruby/fileutils"
   s.license = "BSD-2-Clause"
 
-  if s.respond_to?(:metadata=)
-    s.metadata = {
-      "source_code_uri" => "https://github.com/ruby/fileutils"
-    }
-  end
+  s.metadata = {
+    "source_code_uri" => "https://github.com/ruby/fileutils"
+  }
 end