Upgrade rugged to latest version

Changes:

   * Upgraded rugged, fixed API calls
   * Fixed deprecated call to File.exists?
   * Removed deprecated rspec config option

.ruby-version

@@ -1 +1 @@
-2.0.0-p247
+2.1.2

lib/thegarage/gitx/cli/base_command.rb

@@ -26,8 +26,7 @@ def initialize(*args)
         def repo
           @repo ||= begin
             path = Dir.pwd
-            root_path = Rugged::Repository.discover(path)
-            Rugged::Repository.new(root_path)
+            Rugged::Repository.discover(path)
           end
         end
 

lib/thegarage/gitx/cli/nuke_command.rb

@@ -34,7 +34,7 @@ def nuke(bad_branch)
         private
 
         def migrations_need_to_be_reverted?(bad_branch, last_known_good_tag)
-          return false unless File.exists?('db/migrate')
+          return false unless File.exist?('db/migrate')
           outdated_migrations = run_cmd("git diff #{last_known_good_tag}...#{bad_branch} --name-only db/migrate").split
           return false if outdated_migrations.empty?
 

lib/thegarage/gitx/cli/start_command.rb

@@ -29,7 +29,7 @@ def valid_new_branch_name?(branch)
         end
 
         def remote_branches
-          @remote_branches ||= Rugged::Branch.each_name(repo, :remote).to_a.map { |branch| branch.split('/').last }
+          @remote_branches ||= repo.branches.each_name(:remote).to_a.map { |branch| branch.split('/').last }
         end
       end
     end

spec/spec_helper.rb

@@ -8,7 +8,6 @@
 Dir[File.join(__dir__, "support/**/*.rb")].each { |f| require f }
 
 RSpec.configure do |config|
-  config.treat_symbols_as_metadata_keys_with_true_values = true
   config.run_all_when_everything_filtered = true
   config.filter_run :focus
 

thegarage-gitx.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency "rugged", '~> 0.19.0'
+  spec.add_runtime_dependency "rugged", '~> 0.21.0'
   spec.add_runtime_dependency "rest-client", ">= 1.4.0"
   spec.add_runtime_dependency "thor"