Merge bundler to standard libraries.

  rubygems 2.7.x depends bundler-1.15.x. This is preparation for
  rubygems and bundler migration.

  * lib/bundler.rb, lib/bundler/*: files of bundler-1.15.4
  * spec/bundler/*: rspec examples of bundler-1.15.4. I applied patches.
    * https://github.com/bundler/bundler/pull/6007
    * Exclude not working examples on ruby repository.
    * Fake ruby interpriter instead of installed ruby.
  * Makefile.in: Added test task named `test-bundler`. This task is only
    working macOS/linux yet. I'm going to support Windows environment later.
  * tool/sync_default_gems.rb: Added sync task for bundler.

  [Feature #12733][ruby-core:77172]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59779 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 73 insertions, 0 deletions

diff --git a/spec/bundler/support/artifice/endpoint.rb b/spec/bundler/support/artifice/endpoint.rb
new file mode 100644
index 0000000000..771d431f22
--- /dev/null
+++ b/spec/bundler/support/artifice/endpoint.rb
@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+require File.expand_path("../../path.rb", __FILE__)
+require Spec::Path.root.join("lib/bundler/deprecate")
+include Spec::Path
+
+$LOAD_PATH.unshift(*Dir[Spec::Path.base_system_gems.join("gems/{artifice,rack,tilt,sinatra}-*/lib")].map(&:to_s))
+require "artifice"
+require "sinatra/base"
+
+class Endpoint < Sinatra::Base
+  GEM_REPO = Pathname.new(ENV["BUNDLER_SPEC_GEM_REPO"] || Spec::Path.gem_repo1)
+  set :raise_errors, true
+  set :show_exceptions, false
+
+  helpers do
+    def dependencies_for(gem_names, gem_repo = GEM_REPO)
+      return [] if gem_names.nil? || gem_names.empty?
+
+      require "rubygems"
+      require "bundler"
+      Bundler::Deprecate.skip_during do
+        all_specs = %w(specs.4.8 prerelease_specs.4.8).map do |filename|
+          Marshal.load(File.open(gem_repo.join(filename)).read)
+        end.inject(:+)
+
+        all_specs.map do |name, version, platform|
+          spec = load_spec(name, version, platform, gem_repo)
+          next unless gem_names.include?(spec.name)
+          {
+            :name         => spec.name,
+            :number       => spec.version.version,
+            :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.compact
+      end
+    end
+
+    def load_spec(name, version, platform, gem_repo)
+      full_name = "#{name}-#{version}"
+      full_name += "-#{platform}" if platform != "ruby"
+      Marshal.load(Gem.inflate(File.open(gem_repo.join("quick/Marshal.4.8/#{full_name}.gemspec.rz")).read))
+    end
+  end
+
+  get "/quick/Marshal.4.8/:id" do
+    redirect "/fetch/actual/gem/#{params[:id]}"
+  end
+
+  get "/fetch/actual/gem/:id" do
+    File.read("#{GEM_REPO}/quick/Marshal.4.8/#{params[:id]}")
+  end
+
+  get "/gems/:id" do
+    File.read("#{GEM_REPO}/gems/#{params[:id]}")
+  end
+
+  get "/api/v1/dependencies" do
+    Marshal.dump(dependencies_for(params[:gems]))
+  end
+
+  get "/specs.4.8.gz" do
+    File.read("#{GEM_REPO}/specs.4.8.gz")
+  end
+
+  get "/prerelease_specs.4.8.gz" do
+    File.read("#{GEM_REPO}/prerelease_specs.4.8.gz")
+  end
+end
+
+Artifice.activate_with(Endpoint)