cleanup with rubocop

.rubocop.yml

@@ -1,5 +1,7 @@
 AllCops:
   RunRailsCops: true
+  Exclude:
+    - "bin/**/*"
 
 # Commonly used screens these days easily fit more than 80 characters.
 Metrics/LineLength:

Gemfile

@@ -1,4 +1,4 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 # Declare your gem's dependencies in diaspora_federation.gemspec.
 # Bundler will treat runtime dependencies like base dependencies, and

Rakefile

@@ -1,37 +1,33 @@
 begin
-  require 'bundler/setup'
+  require "bundler/setup"
 rescue LoadError
-  puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
+  puts "You must `gem install bundler` and `bundle install` to run rake tasks"
 end
 
-require 'rdoc/task'
+require "rdoc/task"
 
 RDoc::Task.new(:rdoc) do |rdoc|
-  rdoc.rdoc_dir = 'rdoc'
-  rdoc.title    = 'DiasporaFederation'
-  rdoc.options << '--line-numbers'
-  rdoc.rdoc_files.include('README.rdoc')
-  rdoc.rdoc_files.include('lib/**/*.rb')
+  rdoc.rdoc_dir = "rdoc"
+  rdoc.title    = "DiasporaFederation"
+  rdoc.options << "--line-numbers"
+  rdoc.rdoc_files.include("README.rdoc")
+  rdoc.rdoc_files.include("lib/**/*.rb")
 end
 
 APP_RAKEFILE = File.expand_path("../test/dummy/Rakefile", __FILE__)
-load 'rails/tasks/engine.rake'
-
-
-load 'rails/tasks/statistics.rake'
-
+load "rails/tasks/engine.rake"
 
+load "rails/tasks/statistics.rake"
 
 Bundler::GemHelper.install_tasks
 
-require 'rake/testtask'
+require "rake/testtask"
 
 Rake::TestTask.new(:test) do |t|
-  t.libs << 'lib'
-  t.libs << 'test'
-  t.pattern = 'test/**/*_test.rb'
+  t.libs << "lib"
+  t.libs << "test"
+  t.pattern = "test/**/*_test.rb"
   t.verbose = false
 end
 
-
 task default: :test

diaspora_federation.gemspec

@@ -1,4 +1,4 @@
-$:.push File.expand_path("../lib", __FILE__)
+$LOAD_PATH.push File.expand_path("../lib", __FILE__)
 
 # Maintain your gem's version:
 require "diaspora_federation/version"

test/diaspora_federation_test.rb

@@ -1,4 +1,4 @@
-require 'test_helper'
+require "test_helper"
 
 class DiasporaFederationTest < ActiveSupport::TestCase
   test "truth" do

test/test_helper.rb

@@ -8,4 +8,4 @@ require "rails/test_help"
 Minitest.backtrace_filter = Minitest::BacktraceFilter.new
 
 # Load support files
-Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }
+Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each {|f| require f }