Switch to 2-0-stable branch of bundler/bundler repository from our fork repository.

https://github.com/bundler/bundler/tree/2-0-stable

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65770 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/bundler.gemspec

@@ -49,7 +49,16 @@ Gem::Specification.new do |s|
   s.add_development_dependency "ronn",       "~> 0.7.3"
   s.add_development_dependency "rspec",      "~> 3.6"
 
+  # s.files = `git ls-files -z`.split("\x0").select {|f| f.match(%r{^(lib|exe)/}) }
+  # we don't check in man pages, but we need to ship them because
+  # we use them to generate the long-form help for each command.
+  # s.files += Dir.glob("man/**/*")
+  # Include the CHANGELOG.md, LICENSE.md, README.md manually
+  # s.files += %w[CHANGELOG.md LICENSE.md README.md]
+  # include the gemspec itself because warbler breaks w/o it
   s.files += %w[bundler.gemspec]
 
+  # s.bindir        = "exe"
+  # s.executables   = %w[bundle bundler]
   s.require_paths = ["lib"]
 end

spec/bundler/bundler/ssl_certs/certificate_manager_spec.rb

@@ -12,7 +12,7 @@ RSpec.describe Bundler::SSLCerts::CertificateManager do
   # Pretend bundler root is rubygems root
   before do
     # Backing up rubygems ceriticates
-    FileUtils.mv(rubygems_certs_dir, rubygems_certs_dir + ".back") if ENV["BUNDLE_RUBY"] && ENV["BUNDLE_GEM"]
+    FileUtils.mv(rubygems_certs_dir, rubygems_certs_dir + ".back") if ruby_core?
 
     FileUtils.mkdir_p(rubygems_certs_dir)
     FileUtils.touch(stub_cert)
@@ -22,7 +22,7 @@ RSpec.describe Bundler::SSLCerts::CertificateManager do
     FileUtils.rm_rf(rubygems_certs_dir)
 
     # Restore rubygems certificates
-    FileUtils.mv(rubygems_certs_dir + ".back", rubygems_certs_dir) if ENV["BUNDLE_RUBY"] && ENV["BUNDLE_GEM"]
+    FileUtils.mv(rubygems_certs_dir + ".back", rubygems_certs_dir) if ruby_core?
   end
 
   describe "#update_from" do

spec/bundler/other/bundle_ruby_spec.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-RSpec.describe "bundle_ruby", :ruby_repo, :bundler => "< 3" do
+RSpec.describe "bundle_ruby", :bundler => "< 3" do
   context "without patchlevel" do
     it "returns the ruby version" do
       gemfile <<-G

spec/bundler/spec_helper.rb

@@ -28,7 +28,6 @@ require "bundler/vendored_fileutils"
 require "uri"
 require "digest"
 
-
 # Delete the default copy of Bundler that RVM installs for us when running in CI
 require "fileutils"
 if ENV.select {|k, _v| k =~ /TRAVIS/ }.any? && Gem::Version.new(Gem::VERSION) > Gem::Version.new("2.0")
@@ -123,11 +122,13 @@ RSpec.configure do |config|
     c.syntax = :expect
   end
 
-  config.before :suite do
+  config.around :each do |example|
     if ENV["BUNDLE_RUBY"]
-      @orig_ruby = Gem.ruby
+      orig_ruby = Gem.ruby
       Gem.ruby = ENV["BUNDLE_RUBY"]
     end
+    example.run
+    Gem.ruby = orig_ruby if ENV["BUNDLE_RUBY"]
   end
 
   config.before :all do
@@ -154,8 +155,4 @@ RSpec.configure do |config|
     Dir.chdir(original_wd)
     ENV.replace(original_env)
   end
-
-  config.after :suite do
-    Gem.ruby = @orig_ruby if ENV["BUNDLE_RUBY"]
-  end
 end