git_index.gemspec in git_ls-0.3.0 vs git_index.gemspec in git_ls-0.4.0

@@ -1,24 +1,24 @@
 # frozen_string_literal: true
 
 require_relative 'lib/git_ls/version'
 
 Gem::Specification.new do |spec|
-  spec.name          = 'git_ls'
-  spec.version       = GitLS::VERSION
-  spec.authors       = ['Dana Sherson']
-  spec.email         = ['[e-mail]']
+  spec.name = 'git_ls'
+  spec.version = GitLS::VERSION
+  spec.authors = ['Dana Sherson']
+  spec.email = ['[e-mail]']
 
-  spec.summary       = 'Read a .git/index file and list the files'
-  spec.homepage      = 'https://github.com/robotdana/git_ls'
-  spec.license       = 'MIT'
+  spec.summary = 'Read a .git/index file and list the files'
+  spec.homepage = 'https://github.com/robotdana/git_ls'
+  spec.license = 'MIT'
   spec.required_ruby_version = Gem::Requirement.new('>= 2.4.0')
 
   if spec.respond_to?(:metadata)
     spec.metadata['homepage_uri'] = spec.homepage
     spec.metadata['source_code_uri'] = spec.homepage
-    spec.metadata['changelog_uri'] = spec.homepage + '/blob/main/CHANGELOG.md'
+    spec.metadata['changelog_uri'] = "#{spec.homepage}/blob/main/CHANGELOG.md"
   end
 
   # 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
@@ -26,8 +26,14 @@
   end
 
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler', '>= 2'
+  spec.add_development_dependency 'leftovers'
   spec.add_development_dependency 'pry', '> 0'
+  spec.add_development_dependency 'rake', '>= 12.3.3'
+  spec.add_development_dependency 'rubocop'
+  spec.add_development_dependency 'rubocop-performance'
+  spec.add_development_dependency 'rubocop-rspec'
   spec.add_development_dependency 'simplecov', '~> 0.18.5'
+  spec.add_development_dependency 'spellr'
 end