Update templates

This fixes several rubocop and linter warnings, such as prefer usage of
single-quoted strings when string interpolation is no needed, and lines
that are too long.

lib/bundler/templates/Executable

@@ -1,4 +1,4 @@
-#!/usr/bin/env <%= Bundler.settings[:shebang] || RbConfig::CONFIG["ruby_install_name"] %>
+#!/usr/bin/env <%= Bundler.settings[:shebang] || RbConfig::CONFIG['ruby_install_name'] %>
 # frozen_string_literal: true
 
 #
@@ -8,14 +8,14 @@
 # this file is here to facilitate running it.
 #
 
-bundle_binstub = File.expand_path("../bundle", __FILE__)
+bundle_binstub = File.expand_path('../bundle', __FILE__)
 load(bundle_binstub) if File.file?(bundle_binstub)
 
-require "pathname"
-ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../<%= relative_gemfile_path %>",
+require 'pathname'
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../<%= relative_gemfile_path %>',
   Pathname.new(__FILE__).realpath)
 
-require "rubygems"
-require "bundler/setup"
+require 'rubygems'
+require 'bundler/setup'
 
-load Gem.bin_path("<%= spec.name %>", "<%= executable %>")
+load Gem.bin_path('<%= spec.name %>', '<%= executable %>')

lib/bundler/templates/Executable.bundler

@@ -1,4 +1,4 @@
-#!/usr/bin/env <%= Bundler.settings[:shebang] || RbConfig::CONFIG["ruby_install_name"] %>
+#!/usr/bin/env <%= Bundler.settings[:shebang] || RbConfig::CONFIG['ruby_install_name'] %>
 # frozen_string_literal: true
 
 #
@@ -8,7 +8,7 @@
 # this file is here to facilitate running it.
 #
 
-require "rubygems"
+require 'rubygems'
 
 m = Module.new do
     module_function
@@ -18,36 +18,36 @@ m = Module.new do
   end
 
   def env_var_version
-    ENV["BUNDLER_VERSION"]
+    ENV['BUNDLER_VERSION']
   end
 
   def cli_arg_version
     return unless invoked_as_script? # don't want to hijack other binstubs
-    return unless "update".start_with?(ARGV.first || " ") # must be running `bundle update`
+    return unless 'update'.start_with?(ARGV.first || ' ') # must be running `bundle update`
     bundler_version = nil
     update_index = nil
     ARGV.each_with_index do |a, i|
       if update_index && update_index.succ == i && a =~ Gem::Version::ANCHORED_VERSION_PATTERN
         bundler_version = a
       end
       next unless a =~ /\A--bundler(?:[= ](#{Gem::Version::VERSION_PATTERN}))?\z/
-      bundler_version = $1 || ">= 0.a"
+      bundler_version = $1 || '>= 0.a'
       update_index = i
     end
     bundler_version
   end
 
   def gemfile
-    gemfile = ENV["BUNDLE_GEMFILE"]
+    gemfile = ENV['BUNDLE_GEMFILE']
     return gemfile if gemfile && !gemfile.empty?
 
-    File.expand_path("../<%= relative_gemfile_path %>", __FILE__)
+    File.expand_path('../<%= relative_gemfile_path %>', __FILE__)
   end
 
   def lockfile
     lockfile =
       case File.basename(gemfile)
-      when "gems.rb" then gemfile.sub(/\.rb$/, gemfile)
+      when 'gems.rb' then gemfile.sub(/\.rb$/, gemfile)
       else "#{gemfile}.lock"
       end
     File.expand_path(lockfile)
@@ -68,22 +68,22 @@ m = Module.new do
   end
 
   def load_bundler!
-    ENV["BUNDLE_GEMFILE"] ||= gemfile
+    ENV['BUNDLE_GEMFILE'] ||= gemfile
 
     # must dup string for RG < 1.8 compatibility
     activate_bundler(bundler_version.dup)
   end
 
   def activate_bundler(bundler_version)
-    if Gem::Version.correct?(bundler_version) && Gem::Version.new(bundler_version).release < Gem::Version.new("2.0")
-      bundler_version = "< 2"
+    if Gem::Version.correct?(bundler_version) && Gem::Version.new(bundler_version).release < Gem::Version.new('2.0')
+      bundler_version = '< 2'
     end
     gem_error = activation_error_handling do
-      gem "bundler", bundler_version
+      gem 'bundler', bundler_version
     end
     return if gem_error.nil?
     require_error = activation_error_handling do
-      require "bundler/version"
+      require 'bundler/version'
     end
     return if require_error.nil? && Gem::Requirement.new(bundler_version).satisfied_by?(Gem::Version.new(Bundler::VERSION))
     warn "Activating bundler (#{bundler_version}) failed:\n#{gem_error.message}\n\nTo install the version of bundler this project requires, run `gem install bundler -v '#{bundler_version}'`"
@@ -101,5 +101,5 @@ end
 m.load_bundler!
 
 if m.invoked_as_script?
-  load Gem.bin_path("<%= spec.name %>", "<%= executable %>")
+  load Gem.bin_path('<%= spec.name %>', '<%= executable %>')
 end

lib/bundler/templates/Executable.standalone

@@ -1,14 +1,14 @@
-#!/usr/bin/env <%= Bundler.settings[:shebang] || RbConfig::CONFIG["ruby_install_name"] %>
+#!/usr/bin/env <%= Bundler.settings[:shebang] || RbConfig::CONFIG['ruby_install_name'] %>
 #
 # This file was generated by Bundler.
 #
 # The application '<%= executable %>' is installed as part of a gem, and
 # this file is here to facilitate running it.
 #
 
-require "pathname"
+require 'pathname'
 path = Pathname.new(__FILE__)
-$:.unshift File.expand_path "../<%= standalone_path %>", path.realpath
+$:.unshift File.expand_path '../<%= standalone_path %>', path.realpath
 
-require "bundler/setup"
-load File.expand_path "../<%= executable_path %>", path.realpath
+require 'bundler/setup'
+load File.expand_path '../<%= executable_path %>', path.realpath

lib/bundler/templates/Gemfile

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
-# gem "rails"
+# gem 'rails'

lib/bundler/templates/gems.rb

@@ -1,8 +1,8 @@
 # frozen_string_literal: true
 
 # A sample gems.rb
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 
-# gem "rails"
+# gem 'rails'

lib/bundler/templates/newgem/CODE_OF_CONDUCT.md.tt

@@ -23,7 +23,7 @@ include:
 Examples of unacceptable behavior by participants include:
 
 * The use of sexualized language or imagery and unwelcome sexual attention or
-advances
+  advances
 * Trolling, insulting/derogatory comments, and personal or political attacks
 * Public or private harassment
 * Publishing others' private information, such as a physical or electronic
@@ -67,8 +67,8 @@ members of the project's leadership.
 
 ## Attribution
 
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at [http://contributor-covenant.org/version/1/4][version]
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
 
 [homepage]: http://contributor-covenant.org
 [version]: http://contributor-covenant.org/version/1/4/

lib/bundler/templates/newgem/Gemfile.tt

@@ -1,4 +1,4 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 

lib/bundler/templates/newgem/README.md.tt

@@ -1,6 +1,9 @@
 # <%= config[:constant_name] %>
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/<%= config[:namespaced_path] %>`. To experiment with that code, run `bin/console` for an interactive prompt.
+Welcome to your new gem! In this directory, you'll find the files you need to be
+able to package up your Ruby library into a gem. Put your Ruby code in the file
+`lib/<%= config[:namespaced_path] %>`.
+To experiment with that code, run `bin/console` for an interactive prompt.
 
 TODO: Delete this and the text above, and describe your gem
 
@@ -26,22 +29,37 @@ TODO: Write usage instructions here
 
 ## Development
 
-After checking out the repo, run `bin/setup` to install dependencies.<% if config[:test] %> Then, run `rake <%= config[:test].sub('mini', '').sub('rspec', 'spec') %>` to run the tests.<% end %> You can also run `bin/console` for an interactive prompt that will allow you to experiment.<% if config[:bin] %> Run `bundle exec <%= config[:name] %>` to use the gem in this directory, ignoring other installed copies of this gem.<% end %>
+After checking out the repo, run `bin/setup` to install dependencies.
+<% if config[:test] %>Then, run `rake <%= config[:test].sub('mini', '').sub('rspec', 'spec') %>` to run the tests.<% end %>
+You can also run `bin/console` for an interactive prompt that will allow you to
+experiment.
+<% if config[:bin] %>Run `bundle exec <%= config[:name] %>` to use the gem in this directory, ignoring other installed copies of this gem.<% end %>
 
-To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+To install this gem onto your local machine, run `bundle exec rake install`. To
+release a new version, update the version number in `version.rb`, and then run
+`bundle exec rake release`, which will create a Git tag for the version, push
+Git commits and tags, and push the `.gem` file to
+[rubygems.org](https://rubygems.org).
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/<%= config[:github_username] %>/<%= config[:name] %>.<% if config[:coc] %> This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.<% end %>
+Bug reports and pull requests are welcome on GitHub at
+https://github.com/<%= config[:github_username] %>/<%= config[:name] %>.<% if config[:coc] %>
+This project is intended to be a safe, welcoming space for collaboration, and
+contributors are expected to adhere to the
+[Contributor Covenant](http://contributor-covenant.org) code of conduct.<% end %>
 <% if config[:mit] -%>
 
 ## License
 
-The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
+The gem is available as open source under the terms of the
+[MIT License](https://opensource.org/licenses/MIT).
 <% end -%>
 <% if config[:coc] -%>
 
 ## Code of Conduct
 
-Everyone interacting in the <%= config[:constant_name] %> project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/<%= config[:github_username] %>/<%= config[:name] %>/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the <%= config[:constant_name] %> project’s
+codebases, issue trackers, chat rooms and mailing lists is expected to follow
+the [code of conduct](https://github.com/<%= config[:github_username] %>/<%= config[:name] %>/blob/master/CODE_OF_CONDUCT.md).
 <% end -%>

lib/bundler/templates/newgem/bin/console.tt

@@ -1,14 +1,14 @@
 #!/usr/bin/env ruby
 
-require "bundler/setup"
-require "<%= config[:namespaced_path] %>"
+require 'bundler/setup'
+require '<%= config[:namespaced_path] %>'
 
 # You can add fixtures and/or initialization code here to make experimenting
 # with your gem easier. You can also use a different console, if you like.
 
 # (If you use this, don't forget to add pry to your Gemfile!)
-# require "pry"
+# require 'pry'
 # Pry.start
 
-require "irb"
+require 'irb'
 IRB.start(__FILE__)

lib/bundler/templates/newgem/exe/newgem.tt

@@ -1,3 +1,3 @@
 #!/usr/bin/env ruby
 
-require "<%= config[:namespaced_path] %>"
+require '<%= config[:namespaced_path] %>'

lib/bundler/templates/newgem/ext/newgem/extconf.rb.tt

@@ -1,3 +1,3 @@
-require "mkmf"
+require 'mkmf'
 
 create_makefile(<%= config[:makefile_path].inspect %>)

lib/bundler/templates/newgem/lib/newgem.rb.tt

@@ -1,6 +1,6 @@
-require "<%= config[:namespaced_path] %>/version"
+require '<%= config[:namespaced_path] %>/version'
 <%- if config[:ext] -%>
-require "<%= config[:namespaced_path] %>/<%= config[:underscored_name] %>"
+require '<%= config[:namespaced_path] %>/<%= config[:underscored_name] %>'
 <%- end -%>
 
 <%- config[:constant_array].each_with_index do |c, i| -%>

lib/bundler/templates/newgem/newgem.gemspec.tt

@@ -2,9 +2,9 @@
 # coding: utf-8
 
 <%- end -%>
-lib = File.expand_path("../lib", __FILE__)
+lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require "<%= config[:namespaced_path] %>/version"
+require '<%= config[:namespaced_path] %>/version'
 
 Gem::Specification.new do |spec|
   spec.name          = <%= config[:name].inspect %>
@@ -14,36 +14,37 @@ Gem::Specification.new do |spec|
 
   spec.summary       = %q{TODO: Write a short summary, because RubyGems requires one.}
   spec.description   = %q{TODO: Write a longer description or delete this line.}
-  spec.homepage      = "TODO: Put your gem's website or public repo URL here."
+  spec.homepage      = 'TODO: Insert website or public repo URL of your gem.'
 <%- if config[:mit] -%>
-  spec.license       = "MIT"
+  spec.license       = 'MIT'
 <%- end -%>
 
-  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
-  # to allow pushing to a single host or delete this section to allow pushing to any host.
+  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the
+  # 'allowed_push_host' to allow pushing to a single host or delete this section
+  # to allow pushing to any host.
   if spec.respond_to?(:metadata)
     spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'"
   else
-    raise "RubyGems 2.0 or newer is required to protect against " \
-      "public gem pushes."
+    raise 'RubyGems 2.0 or newer is required to protect against ' \
+      'public gem pushes.'
   end
 
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   end
-  spec.bindir        = "exe"
+  spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
-  spec.require_paths = ["lib"]
+  spec.require_paths = ['lib']
 <%- if config[:ext] -%>
   spec.extensions    = ["ext/<%= config[:underscored_name] %>/extconf.rb"]
 <%- end -%>
 
-  spec.add_development_dependency "bundler", "~> <%= config[:bundler_version] %>"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency 'bundler', '~> <%= config[:bundler_version] %>'
+  spec.add_development_dependency 'rake', '~> 10.0'
 <%- if config[:ext] -%>
-  spec.add_development_dependency "rake-compiler"
+  spec.add_development_dependency 'rake-compiler'
 <%- end -%>
 <%- if config[:test] -%>
-  spec.add_development_dependency "<%= config[:test] %>", "~> <%= config[:test_framework_version] %>"
+  spec.add_development_dependency '<%= config[:test] %>', '~> <%= config[:test_framework_version] %>'
 <%- end -%>
 end

lib/bundler/templates/newgem/spec/newgem_spec.rb.tt

@@ -1,9 +1,9 @@
 RSpec.describe <%= config[:constant_name] %> do
-  it "has a version number" do
+  it 'has a version number' do
     expect(<%= config[:constant_name] %>::VERSION).not_to be nil
   end
 
-  it "does something useful" do
+  it 'does something useful' do
     expect(false).to eq(true)
   end
 end

lib/bundler/templates/newgem/spec/spec_helper.rb.tt

@@ -1,9 +1,9 @@
-require "bundler/setup"
-require "<%= config[:namespaced_path] %>"
+require 'bundler/setup'
+require '<%= config[:namespaced_path] %>'
 
 RSpec.configure do |config|
   # Enable flags like --only-failures and --next-failure
-  config.example_status_persistence_file_path = ".rspec_status"
+  config.example_status_persistence_file_path = '.rspec_status'
 
   # Disable RSpec exposing methods globally on `Module` and `main`
   config.disable_monkey_patching!

lib/bundler/templates/newgem/test/newgem_test.rb.tt

@@ -1,4 +1,4 @@
-require "test_helper"
+require 'test_helper'
 
 class <%= config[:constant_name] %>Test < Minitest::Test
   def test_that_it_has_a_version_number

lib/bundler/templates/newgem/test/test_helper.rb.tt

@@ -1,4 +1,4 @@
-$LOAD_PATH.unshift File.expand_path("../../lib", __FILE__)
-require "<%= config[:namespaced_path] %>"
+$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
+require '<%= config[:namespaced_path] %>'
 
-require "minitest/autorun"
+require 'minitest/autorun'