Merge Bundler 2.1.0.pre.1 as developed version from upstream.

  https://github.com/bundler/bundler/commit/a53709556b95a914e874b22ed2116a46b0528852

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67539 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

15 files changed, 140 insertions, 151 deletions

diff --git a/spec/bundler/support/artifice/compact_index.rb b/spec/bundler/support/artifice/compact_index.rb
index 01e8eb7837..4f01690ae4 100644
--- a/spec/bundler/support/artifice/compact_index.rb
+++ b/spec/bundler/support/artifice/compact_index.rb
@@ -21,7 +21,7 @@ class CompactIndexAPI < Endpoint
       headers "Surrogate-Control" => "max-age=2592000, stale-while-revalidate=60"
       content_type "text/plain"
       requested_range_for(response_body)
-    rescue => e
+    rescue StandardError => e
       puts e
       puts e.backtrace
       raise
@@ -57,11 +57,7 @@ class CompactIndexAPI < Endpoint
     end
 
     def slice_body(body, range)
-      if body.respond_to?(:byteslice)
-        body.byteslice(range)
-      else # pre-1.9.3
-        body.unpack("@#{range.first}a#{range.end + 1}").first
-      end
+      body.byteslice(range)
     end
 
     def gems(gem_repo = GEM_REPO)
@@ -82,8 +78,8 @@ class CompactIndexAPI < Endpoint
               CompactIndex::Dependency.new(d.name, reqs)
             end
             checksum = begin
-                         Digest::SHA256.file("#{GEM_REPO}/gems/#{spec.original_name}.gem").base64digest
-                       rescue
+                         Digest(:SHA256).file("#{GEM_REPO}/gems/#{spec.original_name}.gem").base64digest
+                       rescue StandardError
                          nil
                        end
             CompactIndex::GemVersion.new(spec.version.version, spec.platform.to_s, checksum, nil,
diff --git a/spec/bundler/support/artifice/compact_index_api_missing.rb b/spec/bundler/support/artifice/compact_index_api_missing.rb
index d4e68c38e8..94e6b73000 100644
--- a/spec/bundler/support/artifice/compact_index_api_missing.rb
+++ b/spec/bundler/support/artifice/compact_index_api_missing.rb
@@ -6,7 +6,7 @@ Artifice.deactivate
 
 class CompactIndexApiMissing < CompactIndexAPI
   get "/fetch/actual/gem/:id" do
-    $stderr.puts params[:id]
+    warn params[:id]
     if params[:id] == "rack-1.0.gemspec.rz"
       halt 404
     else
diff --git a/spec/bundler/support/artifice/compact_index_rate_limited.rb b/spec/bundler/support/artifice/compact_index_rate_limited.rb
new file mode 100644
index 0000000000..d8f4fc941c
--- /dev/null
+++ b/spec/bundler/support/artifice/compact_index_rate_limited.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require File.expand_path("../compact_index", __FILE__)
+
+Artifice.deactivate
+
+class CompactIndexRateLimited < CompactIndexAPI
+  class RequestCounter
+    def self.queue
+      @queue ||= Queue.new
+    end
+
+    def self.size
+      @queue.size
+    end
+
+    def self.enq(name)
+      @queue.enq(name)
+    end
+
+    def self.deq
+      @queue.deq
+    end
+  end
+
+  configure do
+    RequestCounter.queue
+  end
+
+  get "/info/:name" do
+    RequestCounter.enq(params[:name])
+
+    begin
+      if RequestCounter.size == 1
+        etag_response do
+          gem = gems.find {|g| g.name == params[:name] }
+          CompactIndex.info(gem ? gem.versions : [])
+        end
+      else
+        status 429
+      end
+    ensure
+      RequestCounter.deq
+    end
+  end
+end
+
+Artifice.activate_with(CompactIndexRateLimited)
diff --git a/spec/bundler/support/artifice/endpoint.rb b/spec/bundler/support/artifice/endpoint.rb
index 9a0cfae8a2..fcced6ea35 100644
--- a/spec/bundler/support/artifice/endpoint.rb
+++ b/spec/bundler/support/artifice/endpoint.rb
@@ -59,7 +59,7 @@ class Endpoint < Sinatra::Base
             :platform     => spec.platform.to_s,
             :dependencies => spec.dependencies.select {|dep| dep.type == :runtime }.map do |dep|
               [dep.name, dep.requirement.requirements.map {|a| a.join(" ") }.join(", ")]
-            end
+            end,
           }
         end.compact
       end
diff --git a/spec/bundler/support/artifice/endpoint_api_missing.rb b/spec/bundler/support/artifice/endpoint_api_missing.rb
index 95db8e2a7e..2ada0dc553 100644
--- a/spec/bundler/support/artifice/endpoint_api_missing.rb
+++ b/spec/bundler/support/artifice/endpoint_api_missing.rb
@@ -6,7 +6,7 @@ Artifice.deactivate
 
 class EndpointApiMissing < Endpoint
   get "/fetch/actual/gem/:id" do
-    $stderr.puts params[:id]
+    warn params[:id]
     if params[:id] == "rack-1.0.gemspec.rz"
       halt 404
     else
diff --git a/spec/bundler/support/artifice/vcr.rb b/spec/bundler/support/artifice/vcr.rb
index edd2f49a91..1e3809ff62 100644
--- a/spec/bundler/support/artifice/vcr.rb
+++ b/spec/bundler/support/artifice/vcr.rb
@@ -1,13 +1,6 @@
 # frozen_string_literal: true
 
 require "net/http"
-if RUBY_VERSION < "1.9"
-  begin
-    require "net/https"
-  rescue LoadError
-    nil # net/https or openssl
-  end
-end # but only for 1.8
 
 CASSETTE_PATH = File.expand_path("../vcr_cassettes", __FILE__)
 CASSETTE_NAME = ENV.fetch("BUNDLER_SPEC_VCR_CASSETTE_NAME") { "realworld" }
diff --git a/spec/bundler/support/builders.rb b/spec/bundler/support/builders.rb
index 97134a045a..33a81f6f65 100644
--- a/spec/bundler/support/builders.rb
+++ b/spec/bundler/support/builders.rb
@@ -40,7 +40,7 @@ module Spec
 
         build_gem "rails", "2.3.2" do |s|
           s.executables = "rails"
-          s.add_dependency "rake",           "10.0.2"
+          s.add_dependency "rake",           "12.3.2"
           s.add_dependency "actionpack",     "2.3.2"
           s.add_dependency "activerecord",   "2.3.2"
           s.add_dependency "actionmailer",   "2.3.2"
@@ -210,12 +210,7 @@ module Spec
         # The yard gem iterates over Gem.source_index looking for plugins
         build_gem "yard" do |s|
           s.write "lib/yard.rb", <<-Y
-            if Gem::Version.new(Gem::VERSION) >= Gem::Version.new("1.8.10")
-              specs = Gem::Specification
-            else
-              specs = Gem.source_index.find_name('')
-            end
-            specs.sort_by(&:name).each do |gem|
+            Gem::Specification.sort_by(&:name).each do |gem|
               puts gem.full_name
             end
           Y
@@ -653,7 +648,8 @@ module Spec
           `git add *`
           `git config user.email "lol@wut.com"`
           `git config user.name "lolwut"`
-          `git commit -m 'OMG INITIAL COMMIT'`
+          `git config commit.gpgsign false`
+          `git commit -m "OMG INITIAL COMMIT"`
         end
       end
     end
diff --git a/spec/bundler/support/helpers.rb b/spec/bundler/support/helpers.rb
index 89c67c45b7..09e7419a98 100644
--- a/spec/bundler/support/helpers.rb
+++ b/spec/bundler/support/helpers.rb
@@ -41,19 +41,25 @@ module Spec
     end
 
     def out
-      last_command.stdboth
+      last_command.stdout
     end
 
     def err
-      last_command.stderr
+      Bundler.feature_flag.error_on_stderr? ? last_command.stderr : last_command.stdout
     end
 
-    def exitstatus
-      last_command.exitstatus
+    MAJOR_DEPRECATION = /^\[DEPRECATED\]\s*/.freeze
+
+    def err_without_deprecations
+      last_command.stderr.gsub(/#{MAJOR_DEPRECATION}.+[\n]?/, "")
     end
 
-    def bundle_update_requires_all?
-      Bundler::VERSION.start_with?("2.") ? nil : true
+    def deprecations
+      err.split("\n").select {|l| l =~ MAJOR_DEPRECATION }.join("\n").split(MAJOR_DEPRECATION)
+    end
+
+    def exitstatus
+      last_command.exitstatus
     end
 
     def in_app_root(&blk)
@@ -71,7 +77,7 @@ module Spec
     def run(cmd, *args)
       opts = args.last.is_a?(Hash) ? args.pop : {}
       groups = args.map(&:inspect).join(", ")
-      setup = "require 'rubygems' ; require 'bundler' ; Bundler.setup(#{groups})\n"
+      setup = "require 'bundler' ; Bundler.setup(#{groups})\n"
       ruby(setup + cmd, opts)
     end
     bang :run
@@ -131,8 +137,6 @@ module Spec
       load_path << spec
       load_path_str = "-I#{load_path.join(File::PATH_SEPARATOR)}"
 
-      env = env.map {|k, v| "#{k}='#{v}'" }.join(" ")
-
       args = options.map do |k, v|
         case v
         when nil
@@ -146,13 +150,13 @@ module Spec
         end
       end.join
 
-      cmd = "#{env} #{sudo} #{Gem.ruby} #{load_path_str} #{requires_str} #{bundle_bin} #{cmd}#{args}"
-      sys_exec(cmd) {|i, o, thr| yield i, o, thr if block_given? }
+      cmd = "#{sudo} #{Gem.ruby} #{load_path_str} #{requires_str} #{bundle_bin} #{cmd}#{args}"
+      sys_exec(cmd, env) {|i, o, thr| yield i, o, thr if block_given? }
     end
     bang :bundle
 
     def forgotten_command_line_options(options)
-      remembered = Bundler.bundler_major_version < 3
+      remembered = Bundler::VERSION.split(".", 2).first == "2"
       options = options.map do |k, v|
         k = Array(k)[remembered ? 0 : -1]
         v = '""' if v && v.to_s.empty?
@@ -161,9 +165,9 @@ module Spec
       return Hash[options] if remembered
       options.each do |k, v|
         if v.nil?
-          bundle! "config --delete #{k}"
+          bundle! "config unset #{k}"
         else
-          bundle! "config --local #{k} #{v}"
+          bundle! "config set --local #{k} #{v}"
         end
       end
       {}
@@ -174,11 +178,6 @@ module Spec
       bundle(cmd, options)
     end
 
-    def bundle_ruby(options = {})
-      options["bundle_bin"] = bindir.join("bundle_ruby")
-      bundle("", options)
-    end
-
     def ruby(ruby, options = {})
       env = (options.delete(:env) || {}).map {|k, v| "#{k}='#{v}' " }.join
       ruby = ruby.gsub(/["`\$]/) {|m| "\\#{m}" }
@@ -221,16 +220,18 @@ module Spec
       "#{Gem.ruby} -S #{ENV["GEM_PATH"]}/bin/rake"
     end
 
-    def sys_exec(cmd)
+    def sys_exec(cmd, env = {})
       command_execution = CommandExecution.new(cmd.to_s, Dir.pwd)
 
-      Open3.popen3(cmd.to_s) do |stdin, stdout, stderr, wait_thr|
+      env = env.map {|k, v| [k.to_s, v.to_s] }.to_h # convert env keys and values to string
+
+      Open3.popen3(env, cmd.to_s) do |stdin, stdout, stderr, wait_thr|
         yield stdin, stdout, wait_thr if block_given?
         stdin.close
 
-        command_execution.exitstatus = wait_thr && wait_thr.value.exitstatus
         command_execution.stdout = Thread.new { stdout.read }.value.strip
         command_execution.stderr = Thread.new { stderr.read }.value.strip
+        command_execution.exitstatus = wait_thr && wait_thr.value.exitstatus
       end
 
       (@command_executions ||= []) << command_execution
@@ -263,18 +264,22 @@ module Spec
     end
 
     def gemfile(*args)
-      if args.empty?
+      contents = args.shift
+
+      if contents.nil?
         File.open("Gemfile", "r", &:read)
       else
-        create_file("Gemfile", *args)
+        create_file("Gemfile", contents, *args)
       end
     end
 
     def lockfile(*args)
-      if args.empty?
+      contents = args.shift
+
+      if contents.nil?
         File.open("Gemfile.lock", "r", &:read)
       else
-        create_file("Gemfile.lock", *args)
+        create_file("Gemfile.lock", normalize_uri_file(contents), *args)
       end
     end
 
@@ -323,7 +328,7 @@ module Spec
             Dir.chdir(root) { gem_command! :build, gemspec.to_s }
           end
           bundler_path = root + "bundler-#{Bundler::VERSION}.gem"
-        elsif g.to_s =~ %r{\A/.*\.gem\z}
+        elsif g.to_s =~ %r{\A(?:[A-Z]:)?/.*\.gem\z}
           g
         else
           "#{gem_repo}/gems/#{g}.gem"
@@ -331,11 +336,8 @@ module Spec
 
         raise "OMG `#{path}` does not exist!" unless File.exist?(path)
 
-        if Gem::VERSION < "2.0.0"
-          gem_command! :install, "--no-rdoc --no-ri --ignore-dependencies '#{path}'"
-        else
-          gem_command! :install, "--no-document --ignore-dependencies '#{path}'"
-        end
+        gem_command! :install, "--no-document --ignore-dependencies '#{path}'"
+
         bundler_path && bundler_path.rmtree
       end
     end
@@ -437,7 +439,7 @@ module Spec
       ENV["GEM_PATH"] = system_gem_path.to_s
 
       gems.each do |gem|
-        gem_command :install, "--no-rdoc --no-ri #{gem}"
+        gem_command! :install, "--no-document #{gem}"
       end
       return unless block_given?
       begin
@@ -577,7 +579,7 @@ module Spec
       tries = 0
       sleep 0.5
       TCPSocket.new(host, port)
-    rescue => e
+    rescue StandardError => e
       raise(e) if tries > (seconds * 2)
       tries += 1
       retry
@@ -587,7 +589,7 @@ module Spec
       port = 21_453
       begin
         port += 1 while TCPSocket.new("127.0.0.1", port)
-      rescue
+      rescue StandardError
         false
       end
       port
diff --git a/spec/bundler/support/indexes.rb b/spec/bundler/support/indexes.rb
index 69f8d9f679..b76f493d01 100644
--- a/spec/bundler/support/indexes.rb
+++ b/spec/bundler/support/indexes.rb
@@ -77,7 +77,7 @@ module Spec
         gem "rack-mount", %w[0.4 0.5 0.5.1 0.5.2 0.6]
 
         # --- Pre-release support
-        gem "rubygems\0", ["1.3.2"]
+        gem "RubyGems\0", ["1.3.2"]
 
         # --- Rails
         versions "1.2.3 2.2.3 2.3.5 3.0.0.beta 3.0.0.beta1" do |version|
@@ -414,7 +414,7 @@ module Spec
         gem("b", %w[0.9.0 1.5.0 2.0.0.pre])
 
         # --- Pre-release support
-        gem "rubygems\0", ["1.3.2"]
+        gem "RubyGems\0", ["1.3.2"]
       end
     end
   end
diff --git a/spec/bundler/support/less_than_proc.rb b/spec/bundler/support/less_than_proc.rb
deleted file mode 100644
index ddac5458b7..0000000000
--- a/spec/bundler/support/less_than_proc.rb
+++ /dev/null
@@ -1,20 +0,0 @@
-# frozen_string_literal: true
-
-class LessThanProc < Proc
-  attr_accessor :present
-
-  def self.with(present)
-    provided = Gem::Version.new(present.dup)
-    new do |required|
-      if required =~ /[=><~]/
-        !Gem::Requirement.new(required).satisfied_by?(provided)
-      else
-        provided < Gem::Version.new(required)
-      end
-    end.tap {|l| l.present = present }
-  end
-
-  def inspect
-    "\"=< #{present}\""
-  end
-end
diff --git a/spec/bundler/support/matchers.rb b/spec/bundler/support/matchers.rb
index 8e17be3a02..f9efe32a38 100644
--- a/spec/bundler/support/matchers.rb
+++ b/spec/bundler/support/matchers.rb
@@ -60,36 +60,6 @@ module Spec
       end
     end
 
-    MAJOR_DEPRECATION = /^\[DEPRECATED FOR 2\.0\]\s*/
-
-    RSpec::Matchers.define :lack_errors do
-      diffable
-      match do |actual|
-        actual.gsub(/#{MAJOR_DEPRECATION}.+[\n]?/, "") == ""
-      end
-    end
-
-    RSpec::Matchers.define :eq_err do |expected|
-      diffable
-      match do |actual|
-        actual.gsub(/#{MAJOR_DEPRECATION}.+[\n]?/, "") == expected
-      end
-    end
-
-    RSpec::Matchers.define :have_major_deprecation do |expected|
-      diffable
-      match do |actual|
-        deprecations = actual.split(MAJOR_DEPRECATION)
-
-        return !expected.nil? if deprecations.size <= 1
-        return true if expected.nil?
-
-        deprecations.any? do |d|
-          !d.empty? && values_match?(expected, d.strip)
-        end
-      end
-    end
-
     RSpec::Matchers.define :have_dep do |*args|
       dep = Bundler::Dependency.new(*args)
 
@@ -128,6 +98,14 @@ module Spec
       end
     end
 
+    RSpec::Matchers.define :be_well_formed do
+      match(&:empty?)
+
+      failure_message do |actual|
+        actual.join("\n")
+      end
+    end
+
     define_compound_matcher :read_as, [exist] do |file_contents|
       diffable
 
@@ -152,10 +130,9 @@ module Spec
           version_const = name == "bundler" ? "Bundler::VERSION" : Spec::Builders.constantize(name)
           begin
             run! "require '#{name}.rb'; puts #{version_const}", *groups
-          rescue => e
+          rescue StandardError => e
             next "#{name} is not installed:\n#{indent(e)}"
           end
-          last_command.stdout.gsub!(/#{MAJOR_DEPRECATION}.*$/, "")
           actual_version, actual_platform = last_command.stdout.strip.split(/\s+/, 2)
           unless Gem::Version.new(actual_version) == Gem::Version.new(version)
             next "#{name} was expected to be at version #{version} but was #{actual_version}"
@@ -167,10 +144,9 @@ module Spec
           begin
             source_const = "#{Spec::Builders.constantize(name)}_SOURCE"
             run! "require '#{name}/source'; puts #{source_const}", *groups
-          rescue
+          rescue StandardError
             next "#{name} does not have a source defined:\n#{indent(e)}"
           end
-          last_command.stdout.gsub!(/#{MAJOR_DEPRECATION}.*$/, "")
           unless last_command.stdout.strip == source
             next "Expected #{name} (#{version}) to be installed from `#{source}`, was actually from `#{out}`"
           end
@@ -193,7 +169,7 @@ module Spec
                 puts "WIN"
               end
             R
-          rescue => e
+          rescue StandardError => e
             next "checking for #{name} failed:\n#{e}"
           end
           next if last_command.stdout == "WIN"
@@ -218,7 +194,7 @@ module Spec
     RSpec::Matchers.alias_matcher :include_gem, :include_gems
 
     def have_lockfile(expected)
-      read_as(strip_whitespace(expected))
+      read_as(normalize_uri_file(strip_whitespace(expected)))
     end
 
     def plugin_should_be_installed(*names)
@@ -236,7 +212,7 @@ module Spec
     end
 
     def lockfile_should_be(expected)
-      expect(bundled_app("Gemfile.lock")).to read_as(normalize_uri_file(strip_whitespace(expected)))
+      expect(bundled_app("Gemfile.lock")).to have_lockfile(expected)
     end
 
     def gemfile_should_be(expected)
diff --git a/spec/bundler/support/path.rb b/spec/bundler/support/path.rb
index 69efcba051..dc4b3bb6eb 100644
--- a/spec/bundler/support/path.rb
+++ b/spec/bundler/support/path.rb
@@ -99,7 +99,7 @@ module Spec
     end
 
     def bundler_path
-      Pathname.new(File.expand_path(root.join("lib"), __FILE__))
+      root.join("lib")
     end
 
     def global_plugin_gem(*args)
diff --git a/spec/bundler/support/platforms.rb b/spec/bundler/support/platforms.rb
index 950311d20e..0a9e4a8cb6 100644
--- a/spec/bundler/support/platforms.rb
+++ b/spec/bundler/support/platforms.rb
@@ -100,9 +100,8 @@ module Spec
       9999
     end
 
-    def lockfile_platforms(*platforms)
-      platforms = local_platforms if platforms.empty?
-      platforms.map(&:to_s).sort.join("\n  ")
+    def lockfile_platforms
+      local_platforms.map(&:to_s).sort.join("\n  ")
     end
 
     def local_platforms
diff --git a/spec/bundler/support/requirement_checker.rb b/spec/bundler/support/requirement_checker.rb
new file mode 100644
index 0000000000..d8f5fd5e5f
--- /dev/null
+++ b/spec/bundler/support/requirement_checker.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class RequirementChecker < Proc
+  def self.against(present)
+    provided = Gem::Version.new(present)
+
+    new do |required|
+      !Gem::Requirement.new(required).satisfied_by?(provided)
+    end
+  end
+end
diff --git a/spec/bundler/support/rubygems_ext.rb b/spec/bundler/support/rubygems_ext.rb
index 42f887f268..2f3d252865 100644
--- a/spec/bundler/support/rubygems_ext.rb
+++ b/spec/bundler/support/rubygems_ext.rb
@@ -1,31 +1,25 @@
 # frozen_string_literal: true
 
 require "rubygems/user_interaction"
-require "support/path" unless defined?(Spec::Path)
+require "support/path"
+require "fileutils"
 
 module Spec
   module Rubygems
     DEPS = begin
-      deps = {
-        # rack 2.x requires Ruby version >= 2.2.2.
+      {
         # artifice doesn't support rack 2.x now.
-        # TODO: revert to `< 2` once https://github.com/rack/rack/issues/1168 is
-        # addressed
-        "rack" => "1.6.6",
-        # rack-test 0.7.0 dropped 1.8.7 support
-        # https://github.com/rack-test/rack-test/issues/193#issuecomment-314230318
-        "rack-test" => "< 0.7.0",
+        "rack" => "< 2.0",
+        "rack-test" => "~> 1.1",
         "artifice" => "~> 0.6.0",
         "compact_index" => "~> 0.11.0",
         "sinatra" => "~> 1.4.7",
         # Rake version has to be consistent for tests to pass
-        "rake" => "10.0.2",
-        # 3.0.0 breaks 1.9.2 specs
-        "builder" => "2.1.2",
+        "rake" => "12.3.2",
+        "builder" => "~> 3.2",
+        # ruby-graphviz is used by the viz tests
+        "ruby-graphviz" => nil,
       }
-      # ruby-graphviz is used by the viz tests
-      deps["ruby-graphviz"] = nil if RUBY_VERSION >= "1.9.3"
-      deps
     end
 
     def self.setup
@@ -33,17 +27,17 @@ module Spec
 
       ENV["BUNDLE_PATH"] = nil
       ENV["GEM_HOME"] = ENV["GEM_PATH"] = Path.base_system_gems.to_s
-      ENV["PATH"] = [Path.bindir, "#{Path.system_gem_path}/bin", ENV["PATH"]].join(File::PATH_SEPARATOR)
+      ENV["PATH"] = [Path.bindir, Path.system_gem_path.join("bin"), ENV["PATH"]].join(File::PATH_SEPARATOR)
 
       manifest = DEPS.to_a.sort_by(&:first).map {|k, v| "#{k} => #{v}\n" }
-      manifest_path = "#{Path.base_system_gems}/manifest.txt"
+      manifest_path = Path.base_system_gems.join("manifest.txt")
       # it's OK if there are extra gems
-      if !File.exist?(manifest_path) || !(manifest - File.readlines(manifest_path)).empty?
+      if !manifest_path.file? || !(manifest - manifest_path.readlines).empty?
         FileUtils.rm_rf(Path.base_system_gems)
         FileUtils.mkdir_p(Path.base_system_gems)
         puts "installing gems for the tests to use..."
         install_gems(DEPS)
-        File.open(manifest_path, "w") {|f| f << manifest.join }
+        manifest_path.open("w") {|f| f << manifest.join }
       end
 
       ENV["HOME"] = Path.home.to_s
@@ -54,17 +48,11 @@ module Spec
 
     def self.install_gems(gems)
       reqs, no_reqs = gems.partition {|_, req| !req.nil? && !req.split(" ").empty? }
-      # TODO: remove when we drop ruby 1.8.7-2.2.2 support
-      reqs = reqs.sort_by {|name, _| name == "rack" ? 0 : 1 }.sort_by {|name, _| name =~ /rack/ ? 0 : 1 }
       no_reqs.map!(&:first)
       reqs.map! {|name, req| "'#{name}:#{req}'" }
       deps = reqs.concat(no_reqs).join(" ")
-      gem = Spec::Path.ruby_core? ? ENV["BUNDLE_GEM"] : "gem"
-      cmd = if Gem::VERSION < "2.0.0"
-        "#{gem} install #{deps} --no-rdoc --no-ri --conservative"
-      else
-        "#{gem} install #{deps} --no-document --conservative"
-      end
+      gem = Spec::Path.ruby_core? ? ENV["BUNDLE_GEM"] : "#{Gem.ruby} -S gem"
+      cmd = "#{gem} install #{deps} --no-document --conservative"
       puts cmd
       system(cmd) || raise("Installing gems #{deps} for the tests to use failed!")
     end