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, 123 insertions, 0 deletions

diff --git a/spec/bundler/runtime/platform_spec.rb b/spec/bundler/runtime/platform_spec.rb
new file mode 100644
index 0000000000..4df934e71f
--- /dev/null
+++ b/spec/bundler/runtime/platform_spec.rb
@@ -0,0 +1,123 @@
+# frozen_string_literal: true
+require "spec_helper"
+
+RSpec.describe "Bundler.setup with multi platform stuff" do
+  it "raises a friendly error when gems are missing locally" do
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "rack"
+    G
+
+    lockfile <<-G
+      GEM
+        remote: file:#{gem_repo1}/
+        specs:
+          rack (1.0)
+
+      PLATFORMS
+        #{local_tag}
+
+      DEPENDENCIES
+        rack
+    G
+
+    ruby <<-R
+      begin
+        require 'bundler'
+        Bundler.setup
+      rescue Bundler::GemNotFound => e
+        puts "WIN"
+      end
+    R
+
+    expect(out).to eq("WIN")
+  end
+
+  it "will resolve correctly on the current platform when the lockfile was targetted for a different one" do
+    lockfile <<-G
+      GEM
+        remote: file:#{gem_repo1}/
+        specs:
+          nokogiri (1.4.2-java)
+            weakling (= 0.0.3)
+          weakling (0.0.3)
+
+      PLATFORMS
+        java
+
+      DEPENDENCIES
+        nokogiri
+    G
+
+    system_gems "nokogiri-1.4.2"
+
+    simulate_platform "x86-darwin-10"
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "nokogiri"
+    G
+
+    expect(the_bundle).to include_gems "nokogiri 1.4.2"
+  end
+
+  it "will add the resolve for the current platform" do
+    lockfile <<-G
+      GEM
+        remote: file:#{gem_repo1}/
+        specs:
+          nokogiri (1.4.2-java)
+            weakling (= 0.0.3)
+          weakling (0.0.3)
+
+      PLATFORMS
+        java
+
+      DEPENDENCIES
+        nokogiri
+    G
+
+    simulate_platform "x86-darwin-100"
+
+    system_gems "nokogiri-1.4.2", "platform_specific-1.0-x86-darwin-100"
+
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "nokogiri"
+      gem "platform_specific"
+    G
+
+    expect(the_bundle).to include_gems "nokogiri 1.4.2", "platform_specific 1.0 x86-darwin-100"
+  end
+
+  it "allows specifying only-ruby-platform" do
+    simulate_platform "java"
+
+    install_gemfile! <<-G
+      source "file://#{gem_repo1}"
+      gem "nokogiri"
+      gem "platform_specific"
+    G
+
+    bundle! "config force_ruby_platform true"
+
+    bundle! "install"
+
+    expect(the_bundle).to include_gems "nokogiri 1.4.2", "platform_specific 1.0 RUBY"
+  end
+
+  it "allows specifying only-ruby-platform on windows with dependency platforms" do
+    simulate_windows do
+      install_gemfile! <<-G
+        source "file://#{gem_repo1}"
+        gem "nokogiri", :platforms => [:mingw, :mswin, :x64_mingw, :jruby]
+        gem "platform_specific"
+      G
+
+      bundle! "config force_ruby_platform true"
+
+      bundle! "install"
+
+      expect(the_bundle).to include_gems "platform_specific 1.0 RUBY"
+    end
+  end
+end