Add option to configure gem

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    ez_attributes (0.2.2)
+    ez_attributes (0.3.0)
 
 GEM
   remote: https://rubygems.org/
@@ -93,4 +93,4 @@ DEPENDENCIES
   yard
 
 BUNDLED WITH
-   2.2.25
+   2.2.29

README.md

@@ -58,6 +58,23 @@ user.name
 # => "Matz"
 ```
 
+### Configuration
+You can disable getters
+```ruby
+class User
+  extend EzAttributes.configure(getters: false)
+
+  attributes :name, :age, email: 'guest@user.com'
+end
+
+u = User.new(name: 'Matz', age: 22)
+# => #<User:0x000055bac152f130 @name="Matz", @age=22, @email="guest@user.com">
+
+u.name
+# NoMethodError (undefined method `name' for #<User:0x000055bac152f130>)
+
+```
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

lib/ez_attributes.rb

@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+require_relative 'ez_attributes/config'
+
 # Easily define initializers with keyword args.
 # It supports required and optional args.
 #
@@ -14,8 +16,17 @@
 #   User.new(name: 'Matheus', age: 22)
 #   => #<User:0x000055bac152f130 @name="Matheus", @age=22, @email="guest@user.com">
 module EzAttributes
+  class << self
+    attr_accessor :config
+
+    # Defines config
+    def configure(**opts)
+      @config = Config.new(**opts)
+      self
+    end
+  end
   # Gem version
-  VERSION = "0.2.2"
+  VERSION = '0.3.0'
 
   # Attributes that won't have a getter to prevent conflicts with default methods
   EXCEPTIONS = [:class].freeze
@@ -24,19 +35,22 @@ module EzAttributes
   def attributes(*args, **args_with_default)
     required_args = args.map { |name| "#{name}:" }
     optional_args = args_with_default.map { |name, _| "#{name}: __args_with_default[:#{name}]" }
-    init_args = (required_args + optional_args).join(", ")
+    init_args = (required_args + optional_args).join(', ')
 
-    define_method("__args_with_default", -> { Marshal.load(Marshal.dump(args_with_default)) })
+    define_method('__args_with_default', -> { Marshal.load(Marshal.dump(args_with_default)) })
     private :__args_with_default
 
     all_args = args + args_with_default.keys
-    attr_reader(*(all_args - EXCEPTIONS))
+    config = EzAttributes.config
+    attr_reader(*(all_args - EXCEPTIONS)) if config&.getters || config.nil?
 
     class_eval <<~RUBY, __FILE__, __LINE__ + 1
       def initialize(#{init_args})
-        #{all_args.map { |name| "@#{name} = binding.local_variable_get(:#{name})" }.join("; ")}
+        #{all_args.map { |name| "@#{name} = binding.local_variable_get(:#{name})" }.join('; ')}
       end
     RUBY
+    # Reset config
+    EzAttributes.config = Config.new
   end
 
   # Defines a single keyword argument for a class initializer

lib/ez_attributes/config.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+module EzAttributes
+  # Config for EzAttributes
+  # @example
+  # class User
+  #   extend EzAttributes.configure(getters: false)
+  #
+  #   attributes :name, :age
+  # end
+  #
+  # user = User.new(name: 'Matz', age: 22)
+  # p user.name
+  #   => `<main>': undefined method `name' for #<User:0x000055a07f700f60 @name="Matz", @age=22> (NoMethodError)
+  class Config
+    attr_reader :getters
+
+    def initialize(getters: true)
+      @getters = getters
+    end
+  end
+end

spec/ez_attributes_spec.rb

@@ -30,9 +30,9 @@
 
     it "requires keyword args" do
       expect { single_arg_class.new(1) }.to raise_error(
-        ArgumentError,
-        /wrong number of arguments \(given 1, expected 0; required keyword: :?a\)/
-      )
+                                              ArgumentError,
+                                              /wrong number of arguments \(given 1, expected 0; required keyword: :?a\)/
+                                            )
     end
   end
 
@@ -64,9 +64,9 @@
 
     it "requires keyword args" do
       expect { multiple_arg_class.new(1, 2) }.to raise_error(
-        ArgumentError,
-        /wrong number of arguments \(given 2, expected 0; required keywords: a, b\)/
-      )
+                                                   ArgumentError,
+                                                   /wrong number of arguments \(given 2, expected 0; required keywords: a, b\)/
+                                                 )
     end
   end
 
@@ -137,4 +137,46 @@ def change_attr
       expect(obj2.a).to eq [1]
     end
   end
+
+  context "when config is not present" do
+    let(:test_class) do
+      Class.new do
+        extend EzAttributes
+
+        attributes :test
+      end
+    end
+
+    it "defines getters" do
+      expect { test_class.new(test: "test").test }.not_to raise_error
+    end
+  end
+
+  context "when config is present and has getters: true" do
+    let(:test_class) do
+      Class.new do
+        extend EzAttributes.configure(getters: true)
+
+        attributes :test
+      end
+    end
+
+    it "defines getters" do
+      expect { test_class.new(test: "test").test }.not_to raise_error
+    end
+  end
+
+  context "when config is present and has getters: false" do
+    let(:test_class) do
+      Class.new do
+        extend EzAttributes.configure(getters: false)
+
+        attributes :test
+      end
+    end
+
+    it "does not define getters" do
+      expect { test_class.new(test: "test").test }.to raise_error NoMethodError
+    end
+  end
 end