class Bundler::RubygemsIntegration

# File lib/bundler/rubygems_integration.rb, line 23
def initialize
  @replaced_methods = {}
  backport_ext_builder_monitor
end

# File lib/bundler/rubygems_integration.rb, line 19
def self.provides?(req_str)
  Gem::Requirement.new(req_str).satisfied_by?(version)
end

# File lib/bundler/rubygems_integration.rb, line 15
def self.version
  @version ||= Gem::Version.new(Gem::VERSION)
end

# File lib/bundler/rubygems_integration.rb, line 48
def add_to_load_path(paths)
  return Gem.add_to_load_path(*paths) if Gem.respond_to?(:add_to_load_path)

  if insert_index = Gem.load_path_insert_index
    # Gem directories must come after -I and ENV['RUBYLIB']
    $LOAD_PATH.insert(insert_index, *paths)
  else
    # We are probably testing in core, -I and RUBYLIB don't apply
    $LOAD_PATH.unshift(*paths)
  end
end

# File lib/bundler/rubygems_integration.rb, line 596
def all_specs
  require_relative "remote_specification"
  Gem::Specification.stubs.map do |stub|
    StubSpecification.from_stub(stub)
  end
end

# File lib/bundler/rubygems_integration.rb, line 448
def backport_base_dir
  redefine_method(Gem::Specification, :base_dir) do
    return Gem.dir unless loaded_from
    File.dirname File.dirname loaded_from
  end
end

# File lib/bundler/rubygems_integration.rb, line 455
def backport_cache_file
  redefine_method(Gem::Specification, :cache_dir) do
    @cache_dir ||= File.join base_dir, "cache"
  end

  redefine_method(Gem::Specification, :cache_file) do
    @cache_file ||= File.join cache_dir, "#{full_name}.gem"
  end
end

# File lib/bundler/rubygems_integration.rb, line 603
    def backport_ext_builder_monitor
      # So we can avoid requiring "rubygems/ext" in its entirety
      Gem.module_eval <<-RB, __FILE__, __LINE__ + 1
        module Ext
        end
      RB

      require "rubygems/ext/builder"

      Gem::Ext::Builder.class_eval do
        unless const_defined?(:CHDIR_MONITOR)
          const_set(:CHDIR_MONITOR, EXT_LOCK)
        end

        remove_const(:CHDIR_MUTEX) if const_defined?(:CHDIR_MUTEX)
        const_set(:CHDIR_MUTEX, const_get(:CHDIR_MONITOR))
      end
    end

# File lib/bundler/rubygems_integration.rb, line 465
def backport_spec_file
  redefine_method(Gem::Specification, :spec_dir) do
    @spec_dir ||= File.join base_dir, "specifications"
  end

  redefine_method(Gem::Specification, :spec_file) do
    @spec_file ||= File.join spec_dir, "#{full_name}.gemspec"
  end
end

# File lib/bundler/rubygems_integration.rb, line 222
def bin_path(gem, bin, ver)
  Gem.bin_path(gem, bin, ver)
end

# File lib/bundler/rubygems_integration.rb, line 579
def build(spec, skip_validation = false)
  require "rubygems/package"
  Gem::Package.build(spec, skip_validation)
end

# File lib/bundler/rubygems_integration.rb, line 36
def build_args
  Gem::Command.build_args
end

# File lib/bundler/rubygems_integration.rb, line 40
def build_args=(args)
  Gem::Command.build_args = args
end

# File lib/bundler/rubygems_integration.rb, line 282
def build_gem(gem_dir, spec)
  build(spec)
end

# File lib/bundler/rubygems_integration.rb, line 218
def clear_paths
  Gem.clear_paths
end

# File lib/bundler/rubygems_integration.rb, line 123
def configuration
  require_relative "psyched_yaml"
  Gem.configuration
rescue Gem::SystemExitException, LoadError => e
  Bundler.ui.error "#{e.class}: #{e.message}"
  Bundler.ui.trace e
  raise
rescue YamlLibrarySyntaxError => e
  raise YamlSyntaxError.new(e, "Your RubyGems configuration, which is " \
    "usually located in ~/.gemrc, contains invalid YAML syntax.")
end

# File lib/bundler/rubygems_integration.rb, line 149
def correct_for_windows_path(path)
  require "rubygems/util"

  if Gem::Util.respond_to?(:correct_for_windows_path)
    Gem::Util.correct_for_windows_path(path)
  elsif path[0].chr == "/" && path[1].chr =~ /[a-z]/i && path[2].chr == ":"
    path[1..-1]
  else
    path
  end
end

# File lib/bundler/rubygems_integration.rb, line 627
def default_stubs
  Gem::Specification.default_stubs("*.gemspec")
end

# File lib/bundler/rubygems_integration.rb, line 556
def download_gem(spec, uri, path)
  uri = Bundler.settings.mirror_for(uri)
  fetcher = gem_remote_fetcher
  fetcher.headers = { "X-Gemfile-Source" => spec.remote.original_uri.to_s } if spec.remote.original_uri
  Bundler::Retry.new("download gem from #{uri}").attempts do
    fetcher.download(spec, uri, path)
  end
end

# File lib/bundler/rubygems_integration.rb, line 248
def ext_lock
  EXT_LOCK
end

# File lib/bundler/rubygems_integration.rb, line 549
def fetch_all_remote_specs(remote)
  specs = fetch_specs(remote, "specs")
  pres = fetch_specs(remote, "prerelease_specs") || []

  specs.concat(pres)
end

# File lib/bundler/rubygems_integration.rb, line 538
def fetch_specs(remote, name)
  path = remote.uri.to_s + "#{name}.#{Gem.marshal_version}.gz"
  fetcher = gem_remote_fetcher
  fetcher.headers = { "X-Gemfile-Source" => remote.original_uri.to_s } if remote.original_uri
  string = fetcher.fetch_path(path)
  Bundler.load_marshal(string)
rescue Gem::RemoteFetcher::FetchError => e
  # it's okay for prerelease to fail
  raise e unless name == "prerelease_specs"
end

# File lib/bundler/rubygems_integration.rb, line 622
def find_name(name)
  Gem::Specification.stubs_for(name).map(&:to_spec)
end

# File lib/bundler/rubygems_integration.rb, line 178
def gem_bindir
  Gem.bindir
end

# File lib/bundler/rubygems_integration.rb, line 202
def gem_cache
  gem_path.map {|p| File.expand_path("cache", p) }
end

# File lib/bundler/rubygems_integration.rb, line 174
def gem_dir
  Gem.dir
end

# File lib/bundler/rubygems_integration.rb, line 572
def gem_from_path(path, policy = nil)
  require "rubygems/package"
  p = Gem::Package.new(path)
  p.security_policy = policy if policy
  p
end

# File lib/bundler/rubygems_integration.rb, line 186
def gem_path
  Gem.path
end

# File lib/bundler/rubygems_integration.rb, line 565
def gem_remote_fetcher
  require "resolv"
  proxy = configuration[:http_proxy]
  dns = Resolv::DNS.new
  Gem::RemoteFetcher.new(proxy, dns)
end

# File lib/bundler/rubygems_integration.rb, line 143
def inflate(obj)
  require "rubygems/util"

  Gem::Util.inflate(obj)
end

# File lib/bundler/rubygems_integration.rb, line 588
def install_with_build_args(args)
  yield
end

# File lib/bundler/rubygems_integration.rb, line 240
def load_plugin_files(files)
  Gem.load_plugin_files(files) if Gem.respond_to?(:load_plugin_files)
end

# File lib/bundler/rubygems_integration.rb, line 236
def load_plugins
  Gem.load_plugins if Gem.respond_to?(:load_plugins)
end

# File lib/bundler/rubygems_integration.rb, line 231
def loaded_gem_paths
  loaded_gem_paths = Gem.loaded_specs.map {|_, s| s.full_require_paths }
  loaded_gem_paths.flatten
end

# File lib/bundler/rubygems_integration.rb, line 44
def loaded_specs(name)
  Gem.loaded_specs[name]
end

# File lib/bundler/rubygems_integration.rb, line 60
def mark_loaded(spec)
  if spec.respond_to?(:activated=)
    current = Gem.loaded_specs[spec.name]
    current.activated = false if current
    spec.activated = true
  end
  Gem.loaded_specs[spec.name] = spec
end

# File lib/bundler/rubygems_integration.rb, line 214
def marshal_spec_dir
  Gem::MARSHAL_SPEC_DIR
end

# File lib/bundler/rubygems_integration.rb, line 508
def method_visibility(klass, method)
  if klass.private_method_defined?(method)
    :private
  elsif klass.protected_method_defined?(method)
    :protected
  else
    :public
  end
end

# File lib/bundler/rubygems_integration.rb, line 114
def path(obj)
  obj.to_s
end

# File lib/bundler/rubygems_integration.rb, line 592
def path_separator
  Gem.path_separator
end

# File lib/bundler/rubygems_integration.rb, line 530
def plain_specs
  Gem::Specification._all
end

# File lib/bundler/rubygems_integration.rb, line 534
def plain_specs=(specs)
  Gem::Specification.all = specs
end

# File lib/bundler/rubygems_integration.rb, line 118
def platforms
  return [Gem::Platform::RUBY] if Bundler.settings[:force_ruby_platform]
  Gem.platforms
end

# File lib/bundler/rubygems_integration.rb, line 194
def post_reset_hooks
  Gem.post_reset_hooks
end

# File lib/bundler/rubygems_integration.rb, line 226
def preserve_paths
  # this is a no-op outside of RubyGems 1.8
  yield
end

# File lib/bundler/rubygems_integration.rb, line 32
def provides?(req_str)
  self.class.provides?(req_str)
end

# File lib/bundler/rubygems_integration.rb, line 139
def read_binary(path)
  Gem.read_binary(path)
end

# File lib/bundler/rubygems_integration.rb, line 487
def redefine_method(klass, method, unbound_method = nil, &block)
  visibility = method_visibility(klass, method)
  begin
    if (instance_method = klass.instance_method(method)) && method != :initialize
      # doing this to ensure we also get private methods
      klass.send(:remove_method, method)
    end
  rescue NameError
    # method isn't defined
    nil
  end
  @replaced_methods[[method, klass]] = instance_method
  if unbound_method
    klass.send(:define_method, method, unbound_method)
    klass.send(visibility, method)
  elsif block
    klass.send(:define_method, method, &block)
    klass.send(visibility, method)
  end
end

# File lib/bundler/rubygems_integration.rb, line 357
def replace_bin_path(specs_by_name)
  gem_class = (class << Gem; self; end)

  redefine_method(gem_class, :find_spec_for_exe) do |gem_name, *args|
    exec_name = args.first
    raise ArgumentError, "you must supply exec_name" unless exec_name

    spec_with_name = specs_by_name[gem_name]
    matching_specs_by_exec_name = specs_by_name.values.select {|s| s.executables.include?(exec_name) }
    spec = matching_specs_by_exec_name.delete(spec_with_name)

    unless spec || !matching_specs_by_exec_name.empty?
      message = "can't find executable #{exec_name} for gem #{gem_name}"
      if spec_with_name.nil?
        message += ". #{gem_name} is not currently included in the bundle, " \
                   "perhaps you meant to add it to your #{Bundler.default_gemfile.basename}?"
      end
      raise Gem::Exception, message
    end

    unless spec
      spec = matching_specs_by_exec_name.shift
      warn \
        "Bundler is using a binstub that was created for a different gem (#{spec.name}).\n" \
        "You should run `bundle binstub #{gem_name}` " \
        "to work around a system/bundle conflict."
    end

    unless matching_specs_by_exec_name.empty?
      conflicting_names = matching_specs_by_exec_name.map(&:name).join(", ")
      warn \
        "The `#{exec_name}` executable in the `#{spec.name}` gem is being loaded, but it's also present in other gems (#{conflicting_names}).\n" \
        "If you meant to run the executable for another gem, make sure you use a project specific binstub (`bundle binstub <gem_name>`).\n" \
        "If you plan to use multiple conflicting executables, generate binstubs for them and disambiguate their names."
    end

    spec
  end

  redefine_method(gem_class, :activate_bin_path) do |name, *args|
    exec_name = args.first
    return ENV["BUNDLE_BIN_PATH"] if exec_name == "bundle"

    # Copy of Rubygems activate_bin_path impl
    requirement = args.last
    spec = find_spec_for_exe name, exec_name, [requirement]

    gem_bin = File.join(spec.full_gem_path, spec.bindir, exec_name)
    gem_from_path_bin = File.join(File.dirname(spec.loaded_from), spec.bindir, exec_name)
    File.exist?(gem_bin) ? gem_bin : gem_from_path_bin
  end

  redefine_method(gem_class, :bin_path) do |name, *args|
    exec_name = args.first
    return ENV["BUNDLE_BIN_PATH"] if exec_name == "bundle"

    spec = find_spec_for_exe(name, *args)
    exec_name ||= spec.default_executable

    gem_bin = File.join(spec.full_gem_path, spec.bindir, exec_name)
    gem_from_path_bin = File.join(File.dirname(spec.loaded_from), spec.bindir, exec_name)
    File.exist?(gem_bin) ? gem_bin : gem_from_path_bin
  end
end

# File lib/bundler/rubygems_integration.rb, line 424
def replace_entrypoints(specs)
  specs_by_name = specs.reduce({}) do |h, s|
    h[s.name] = s
    h
  end

  Bundler.rubygems.default_stubs.each do |stub|
    default_spec = stub.to_spec
    default_spec_name = default_spec.name
    next if specs_by_name.key?(default_spec_name)

    specs << default_spec
    specs_by_name[default_spec_name] = default_spec
  end

  replace_gem(specs, specs_by_name)
  stub_rubygems(specs)
  replace_bin_path(specs_by_name)

  Gem.clear_paths
end

# File lib/bundler/rubygems_integration.rb, line 309
def replace_gem(specs, specs_by_name)
  reverse_rubygems_kernel_mixin

  executables = nil

  kernel = (class << ::Kernel; self; end)
  [kernel, ::Kernel].each do |kernel_class|
    redefine_method(kernel_class, :gem) do |dep, *reqs|
      if executables && executables.include?(File.basename(caller.first.split(":").first))
        break
      end

      reqs.pop if reqs.last.is_a?(Hash)

      unless dep.respond_to?(:name) && dep.respond_to?(:requirement)
        dep = Gem::Dependency.new(dep, reqs)
      end

      if spec = specs_by_name[dep.name]
        return true if dep.matches_spec?(spec)
      end

      message = if spec.nil?
        "#{dep.name} is not part of the bundle." \
        " Add it to your #{Bundler.default_gemfile.basename}."
      else
        "can't activate #{dep}, already activated #{spec.full_name}. " \
        "Make sure all dependencies are added to Gemfile."
      end

      e = Gem::LoadError.new(message)
      e.name = dep.name
      if e.respond_to?(:requirement=)
        e.requirement = dep.requirement
      elsif e.respond_to?(:version_requirement=)
        e.version_requirement = dep.requirement
      end
      raise e
    end

    # backwards compatibility shim, see https://github.com/bundler/bundler/issues/5102
    kernel_class.send(:public, :gem) if Bundler.feature_flag.setup_makes_kernel_gem_public?
  end
end

# File lib/bundler/rubygems_integration.rb, line 584
def repository_subdirectories
  Gem::REPOSITORY_SUBDIRECTORIES
end

# File lib/bundler/rubygems_integration.rb, line 190
def reset
  Gem::Specification.reset
end

# File lib/bundler/rubygems_integration.rb, line 299
def reverse_rubygems_kernel_mixin
  # Disable rubygems' gem activation system
  kernel = (class << ::Kernel; self; end)
  [kernel, ::Kernel].each do |k|
    if k.private_method_defined?(:gem_original_require)
      redefine_method(k, :require, k.instance_method(:gem_original_require))
    end
  end
end

# File lib/bundler/rubygems_integration.rb, line 135
def ruby_engine
  Gem.ruby_engine
end

# File lib/bundler/rubygems_integration.rb, line 290
def security_policies
  @security_policies ||= begin
    require "rubygems/security"
    Gem::Security::Policies
  rescue LoadError, NameError
    {}
  end
end

# File lib/bundler/rubygems_integration.rb, line 286
def security_policy_keys
  %w[High Medium Low AlmostNo No].map {|level| "#{level}Security" }
end

# File lib/bundler/rubygems_integration.rb, line 79
def set_installed_by_version(spec, installed_by_version = Gem::VERSION)
  return unless spec.respond_to?(:installed_by_version=)
  spec.installed_by_version = Gem::Version.create(installed_by_version)
end

# File lib/bundler/rubygems_integration.rb, line 170
def sources
  Gem.sources
end

# File lib/bundler/rubygems_integration.rb, line 161
def sources=(val)
  # Gem.configuration creates a new Gem::ConfigFile, which by default will read ~/.gemrc
  # If that file exists, its settings (including sources) will overwrite the values we
  # are about to set here. In order to avoid that, we force memoizing the config file now.
  configuration

  Gem.sources = val
end

# File lib/bundler/rubygems_integration.rb, line 206
def spec_cache_dirs
  @spec_cache_dirs ||= begin
    dirs = gem_path.map {|dir| File.join(dir, "specifications") }
    dirs << Gem.spec_cache_dir if Gem.respond_to?(:spec_cache_dir) # Not in RubyGems 2.0.3 or earlier
    dirs.uniq.select {|dir| File.directory? dir }
  end
end

# File lib/bundler/rubygems_integration.rb, line 93
def spec_default_gem?(spec)
  spec.respond_to?(:default_gem?) && spec.default_gem?
end

# File lib/bundler/rubygems_integration.rb, line 105
def spec_extension_dir(spec)
  return unless spec.respond_to?(:extension_dir)
  spec.extension_dir
end

# File lib/bundler/rubygems_integration.rb, line 264
def spec_from_gem(path, policy = nil)
  require "rubygems/security"
  require_relative "psyched_yaml"
  gem_from_path(path, security_policies[policy]).spec
rescue Gem::Package::FormatError
  raise GemspecError, "Could not read gem at #{path}. It may be corrupted."
rescue Exception, Gem::Exception, Gem::Security::Exception => e # rubocop:disable Lint/RescueException
  if e.is_a?(Gem::Security::Exception) ||
      e.message =~ /unknown trust policy|unsigned gem/i ||
      e.message =~ /couldn't verify (meta)?data signature/i
    raise SecurityError,
      "The gem #{File.basename(path, ".gem")} can't be installed because " \
      "the security policy didn't allow it, with the message: #{e.message}"
  else
    raise e
  end
end

# File lib/bundler/rubygems_integration.rb, line 97
def spec_matches_for_glob(spec, glob)
  return spec.matches_for_glob(glob) if spec.respond_to?(:matches_for_glob)

  spec.load_paths.map do |lp|
    Dir["#{lp}/#{glob}#{suffix_pattern}"]
  end.flatten(1)
end

# File lib/bundler/rubygems_integration.rb, line 84
def spec_missing_extensions?(spec, default = true)
  return spec.missing_extensions? if spec.respond_to?(:missing_extensions?)

  return false if spec_default_gem?(spec)
  return false if spec.extensions.empty?

  default
end

# File lib/bundler/rubygems_integration.rb, line 518
def stub_rubygems(specs)
  Gem::Specification.all = specs

  Gem.post_reset do
    Gem::Specification.all = specs
  end

  redefine_method((class << Gem; self; end), :finish_resolve) do |*|
    []
  end
end

# File lib/bundler/rubygems_integration.rb, line 110
def stub_set_spec(stub, spec)
  stub.instance_variable_set(:@spec, spec)
end

# File lib/bundler/rubygems_integration.rb, line 198
def suffix_pattern
  Gem.suffix_pattern
end

# File lib/bundler/rubygems_integration.rb, line 244
def ui=(obj)
  Gem::DefaultUserInteraction.ui = obj
end

# File lib/bundler/rubygems_integration.rb, line 475
def undo_replacements
  @replaced_methods.each do |(sym, klass), method|
    redefine_method(klass, sym, method)
  end
  if Binding.public_method_defined?(:source_location)
    post_reset_hooks.reject! {|proc| proc.binding.source_location[0] == __FILE__ }
  else
    post_reset_hooks.reject! {|proc| proc.binding.eval("__FILE__") == __FILE__ }
  end
  @replaced_methods.clear
end

# File lib/bundler/rubygems_integration.rb, line 636
def use_gemdeps(gemfile)
  ENV["BUNDLE_GEMFILE"] ||= File.expand_path(gemfile)
  require_relative "gemdeps"
  runtime = Bundler.setup
  activated_spec_names = runtime.requested_specs.map(&:to_spec).sort_by(&:name)
  [Gemdeps.new(runtime), activated_spec_names]
end

# File lib/bundler/rubygems_integration.rb, line 182
def user_home
  Gem.user_home
end

# File lib/bundler/rubygems_integration.rb, line 69
def validate(spec)
  Bundler.ui.silence { spec.validate(false) }
rescue Gem::InvalidSpecificationException => e
  error_message = "The gemspec at #{spec.loaded_from} is not valid. Please fix this gemspec.\n" \
    "The validation error was '#{e.message}'\n"
  raise Gem::InvalidSpecificationException.new(error_message)
rescue Errno::ENOENT
  nil
end

# File lib/bundler/rubygems_integration.rb, line 28
def version
  self.class.version
end

# File lib/bundler/rubygems_integration.rb, line 252
def with_build_args(args)
  ext_lock.synchronize do
    old_args = build_args
    begin
      self.build_args = args
      yield
    ensure
      self.build_args = old_args
    end
  end
end