Export error module

Author: PedroAugustoRamalhoDuarte

rest-api-generator.gemspec

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative "lib/rest_api_generator/version"
+require_relative "lib/rest_api_generator"
 
 Gem::Specification.new do |spec|
   spec.name = "rest-api-generator"
@@ -20,13 +21,8 @@ Gem::Specification.new do |spec|
   spec.metadata["source_code_uri"] = "https://github.com/SwitchDreams/rest-api-generator"
   spec.metadata["changelog_uri"] = "https://github.com/SwitchDreams/rest-api-generator"
 
-  # Specify which files should be added to the gem when it is released.
-  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
-  spec.files = Dir.chdir(File.expand_path(__dir__)) do
-    `git ls-files -z`.split("\x0").reject do |f|
-      (f == __FILE__) || f.match(%r{\A(?:(?:test|spec|features)/|\.(?:git|travis|circleci)|appveyor)})
-    end
-  end
+  spec.files = Dir["{bin,sig,lib,public}/**/*", "MIT-LICENSE", "Rakefile", "README.md", "rest-api-generator.gemspec",
+                   "Gemfile", "Gemfile.lock"]
   spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]