Honor Pry.config.should_load_local_rc = false in global RC file

lib/pry/pry_class.rb

@@ -75,19 +75,27 @@ def self.load_file_at_toplevel(file)
   # Load RC files if appropriate This method can also be used to reload the
   # files if they have changed.
   def self.load_rc_files
-    rc_files_to_load.each do |file|
-      critical_section do
-        load_file_at_toplevel(file)
-      end
+    rc_files_loaded.clear
+    load_rc_file(Pry.config.rc_file) if Pry.config.rc_file && Pry.config.should_load_rc
+    load_rc_file(LOCAL_RC_FILE) if Pry.config.should_load_local_rc
+  end
+
+  def self.load_rc_file(file)
+    file = real_path_to(file)
+    return if file.nil?
+    return if rc_files_loaded.include?(file)
+
+    critical_section do
+      load_file_at_toplevel(file)
     end
+
+    rc_files_loaded << file
   end
+  private_class_method :load_rc_file
 
-  # Load the local RC file (./.pryrc)
-  def self.rc_files_to_load
-    files = []
-    files << Pry.config.rc_file if Pry.config.rc_file && Pry.config.should_load_rc
-    files << LOCAL_RC_FILE if Pry.config.should_load_local_rc
-    files.map { |file| real_path_to(file) }.compact.uniq
+  # @return [Array<String>] the files that have been loaded by {.load_rc_files}
+  def self.rc_files_loaded
+    @rc_files_loaded ||= []
   end
 
   # Expand a file to its canonical name (following symlinks as appropriate)

spec/fixtures/globalrc

@@ -0,0 +1,2 @@
+LOADED_LOCAL_RC = false
+Pry.config.should_load_local_rc = false

spec/fixtures/localrc

@@ -0,0 +1 @@
+LOADED_LOCAL_RC = true

spec/pryrc_spec.rb

@@ -66,6 +66,16 @@
       expect(Object.const_defined?(:TEST_RC)).to eq false
     end
 
+    it "should not load the local rc if the global rc disables it" do
+      Pry.config.rc_file = 'spec/fixtures/globalrc'
+      stub_const('Pry::LOCAL_RC_FILE', 'spec/fixtures/localrc')
+      Pry.config.should_load_rc = true
+      Pry.config.should_load_local_rc = true
+      Pry.start(self, input: StringIO.new("exit-all\n"), output: StringIO.new)
+      expect(LOADED_LOCAL_RC).to be false
+      Object.remove_const(:LOADED_LOCAL_RC)
+    end
+
     describe "that raise exceptions" do
       before do
         Pry.config.rc_file = 'spec/fixtures/testrcbad'