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, 149 insertions, 0 deletions

diff --git a/spec/bundler/runtime/executable_spec.rb b/spec/bundler/runtime/executable_spec.rb
new file mode 100644
index 0000000000..ff27d0b415
--- /dev/null
+++ b/spec/bundler/runtime/executable_spec.rb
@@ -0,0 +1,149 @@
+# frozen_string_literal: true
+require "spec_helper"
+
+RSpec.describe "Running bin/* commands" do
+  before :each do
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "rack"
+    G
+  end
+
+  it "runs the bundled command when in the bundle" do
+    bundle "install --binstubs"
+
+    build_gem "rack", "2.0", :to_system => true do |s|
+      s.executables = "rackup"
+    end
+
+    gembin "rackup"
+    expect(out).to eq("1.0.0")
+  end
+
+  it "allows the location of the gem stubs to be specified" do
+    bundle "install --binstubs gbin"
+
+    expect(bundled_app("bin")).not_to exist
+    expect(bundled_app("gbin/rackup")).to exist
+
+    gembin bundled_app("gbin/rackup")
+    expect(out).to eq("1.0.0")
+  end
+
+  it "allows absolute paths as a specification of where to install bin stubs" do
+    bundle "install --binstubs #{tmp}/bin"
+
+    gembin tmp("bin/rackup")
+    expect(out).to eq("1.0.0")
+  end
+
+  it "uses the default ruby install name when shebang is not specified" do
+    bundle "install --binstubs"
+    expect(File.open("bin/rackup").gets).to eq("#!/usr/bin/env #{RbConfig::CONFIG["ruby_install_name"]}\n")
+  end
+
+  it "allows the name of the shebang executable to be specified" do
+    bundle "install --binstubs --shebang ruby-foo"
+    expect(File.open("bin/rackup").gets).to eq("#!/usr/bin/env ruby-foo\n")
+  end
+
+  it "runs the bundled command when out of the bundle" do
+    bundle "install --binstubs"
+
+    build_gem "rack", "2.0", :to_system => true do |s|
+      s.executables = "rackup"
+    end
+
+    Dir.chdir(tmp) do
+      gembin "rackup"
+      expect(out).to eq("1.0.0")
+    end
+  end
+
+  it "works with gems in path" do
+    build_lib "rack", :path => lib_path("rack") do |s|
+      s.executables = "rackup"
+    end
+
+    gemfile <<-G
+      gem "rack", :path => "#{lib_path("rack")}"
+    G
+
+    bundle "install --binstubs"
+
+    build_gem "rack", "2.0", :to_system => true do |s|
+      s.executables = "rackup"
+    end
+
+    gembin "rackup"
+    expect(out).to eq("1.0")
+  end
+
+  it "don't bundle da bundla" do
+    build_gem "bundler", Bundler::VERSION, :to_system => true do |s|
+      s.executables = "bundle"
+    end
+
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "bundler"
+    G
+
+    bundle "install --binstubs"
+
+    expect(bundled_app("bin/bundle")).not_to exist
+  end
+
+  it "does not generate bin stubs if the option was not specified" do
+    bundle "install"
+
+    expect(bundled_app("bin/rackup")).not_to exist
+  end
+
+  it "allows you to stop installing binstubs" do
+    bundle "install --binstubs bin/"
+    bundled_app("bin/rackup").rmtree
+    bundle "install --binstubs \"\""
+
+    expect(bundled_app("bin/rackup")).not_to exist
+
+    bundle "config bin"
+    expect(out).to include("You have not configured a value for `bin`")
+  end
+
+  it "remembers that the option was specified" do
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "activesupport"
+    G
+
+    bundle "install --binstubs"
+
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "activesupport"
+      gem "rack"
+    G
+
+    bundle "install"
+
+    expect(bundled_app("bin/rackup")).to exist
+  end
+
+  it "rewrites bins on --binstubs (to maintain backwards compatibility)" do
+    gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "rack"
+    G
+
+    bundle "install --binstubs bin/"
+
+    File.open(bundled_app("bin/rackup"), "wb") do |file|
+      file.print "OMG"
+    end
+
+    bundle "install"
+
+    expect(bundled_app("bin/rackup").read).to_not eq("OMG")
+  end
+end