# File lib/bundler.rb, line 341
def app_cache(custom_path = nil)
  path = custom_path || root
  Pathname.new(path).join(Bundler.settings.app_cache_path)
end

# File lib/bundler.rb, line 327
def app_config_path
  if app_config = ENV["BUNDLE_APP_CONFIG"]
    app_config_pathname = Pathname.new(app_config)

    if app_config_pathname.absolute?
      app_config_pathname
    else
      app_config_pathname.expand_path(root)
    end
  else
    root.join(".bundle")
  end
end

# File lib/bundler.rb, line 181
def auto_install
  return unless Bundler.settings[:auto_install]

  begin
    definition.specs
  rescue GemNotFound, GitError
    ui.info "Automatically installing missing gems."
    reset!
    CLI::Install.new({}).run
    reset!
  end
end

# File lib/bundler.rb, line 171
def auto_switch
  self_manager.restart_with_locked_bundler_if_needed
end

# File lib/bundler.rb, line 119
def bin_path
  @bin_path ||= begin
    path = Bundler.settings[:bin] || "bin"
    path = Pathname.new(path).expand_path(root).expand_path
    mkdir_p(path)
    path
  end
end

# File lib/bundler.rb, line 101
def bundle_path
  @bundle_path ||= Pathname.new(configured_bundle_path.path).expand_path(root)
end

# File lib/bundler.rb, line 366
def clean_env
  removed_message =
    "`Bundler.clean_env` has been removed in favor of `Bundler.unbundled_env`. " \
    "If you instead want the environment before bundler was originally loaded, use `Bundler.original_env`"
  Bundler::SharedHelpers.feature_removed!(removed_message)
end

# File lib/bundler.rb, line 422
def clean_exec(*args)
  removed_message =
    "`Bundler.clean_exec` has been removed in favor of `Bundler.unbundled_exec`. " \
    "If you instead want to exec to a command in the environment before bundler was originally loaded, use `Bundler.original_exec`"
  Bundler::SharedHelpers.feature_removed!(removed_message)
end

# File lib/bundler.rb, line 405
def clean_system(*args)
  removed_message =
    "`Bundler.clean_system` has been removed in favor of `Bundler.unbundled_system`. " \
    "If you instead want to run the command in the environment before bundler was originally loaded, use `Bundler.original_system`"
  Bundler::SharedHelpers.feature_removed!(removed_message)
end

# File lib/bundler.rb, line 538
def clear_gemspec_cache
  @gemspec_cache = {}
end

# File lib/bundler.rb, line 87
def configure
  @configure ||= configure_gem_home_and_path
end

# File lib/bundler.rb, line 583
def configure_gem_home_and_path(path = bundle_path)
  configure_gem_path
  configure_gem_home(path)
  Bundler.rubygems.clear_paths
end

# File lib/bundler.rb, line 114
def configured_bundle_path
  @configured_bundle_path ||= Bundler.settings.path.tap(&:validate!)
end

# File lib/bundler.rb, line 105
def create_bundle_path
  mkdir_p(bundle_path) unless bundle_path.exist?

  @bundle_path = bundle_path.realpath
rescue Errno::EEXIST
  raise PathError, "Could not install to path `#{bundle_path}` " \
    "because a file already exists at that path. Either remove or rename the file so the directory can be created."
end

# File lib/bundler.rb, line 451
def default_bundle_dir
  SharedHelpers.default_bundle_dir
end

# File lib/bundler.rb, line 443
def default_gemfile
  SharedHelpers.default_gemfile
end

# File lib/bundler.rb, line 447
def default_lockfile
  SharedHelpers.default_lockfile
end

# File lib/bundler.rb, line 230
def definition(unlock = nil, lockfile = default_lockfile)
  @definition = nil if unlock
  @definition ||= begin
    configure
    Definition.build(default_gemfile, lockfile, unlock)
  end
end

# File lib/bundler.rb, line 220
def environment
  SharedHelpers.feature_removed! "Bundler.environment has been removed in favor of Bundler.load"
end

# File lib/bundler.rb, line 547
def feature_flag
  @feature_flag ||= FeatureFlag.new(Bundler.settings[:simulate_version] || VERSION)
end

# File lib/bundler.rb, line 492
def find_executable(path)
  extensions = RbConfig::CONFIG["EXECUTABLE_EXTS"]&.split
  extensions = [RbConfig::CONFIG["EXEEXT"]] unless extensions&.any?
  candidates = extensions.map {|ext| "#{path}#{ext}" }

  candidates.find {|candidate| File.file?(candidate) && File.executable?(candidate) }
end

# File lib/bundler.rb, line 238
def frozen_bundle?
  frozen = Bundler.settings[:frozen]
  return frozen unless frozen.nil?

  Bundler.settings[:deployment]
end

# File lib/bundler.rb, line 439
def generic_local_platform
  Gem::Platform.generic(local_platform)
end

# File lib/bundler.rb, line 542
def git_present?
  return @git_present if defined?(@git_present)
  @git_present = Bundler.which("git")
end

# File lib/bundler.rb, line 305
def home
  bundle_path.join("bundler")
end

# File lib/bundler.rb, line 309
def install_path
  home.join("gems")
end

# File lib/bundler.rb, line 216
def load
  @load ||= Runtime.new(root, definition)
end

# File lib/bundler.rb, line 519
def load_gemspec(file, validate = false)
  @gemspec_cache ||= {}
  key = File.expand_path(file)
  @gemspec_cache[key] ||= load_gemspec_uncached(file, validate)
  # Protect against caching side-effected gemspecs by returning a
  # new instance each time.
  @gemspec_cache[key]&.dup
end

# File lib/bundler.rb, line 528
def load_gemspec_uncached(file, validate = false)
  path = Pathname.new(file)
  contents = read_file(file)
  spec = eval_gemspec(path, contents)
  return unless spec
  spec.loaded_from = path.expand_path.to_s
  Bundler.rubygems.validate(spec) if validate
  spec
end

# File lib/bundler.rb, line 434
def local_platform
  return Gem::Platform::RUBY if Bundler.settings[:force_ruby_platform]
  Gem::Platform.local
end

# File lib/bundler.rb, line 245
def locked_gems
  @locked_gems ||=
    if defined?(@definition) && @definition
      definition.locked_gems
    elsif Bundler.default_lockfile.file?
      lock = Bundler.read_file(Bundler.default_lockfile)
      LockfileParser.new(lock)
    end
end

# File lib/bundler.rb, line 472
def mkdir_p(path)
  SharedHelpers.filesystem_access(path, :create) do |p|
    FileUtils.mkdir_p(p)
  end
end

# File lib/bundler.rb, line 362
def original_env
  ORIGINAL_ENV.clone
end

# File lib/bundler.rb, line 418
def original_exec(*args)
  with_original_env { Kernel.exec(*args) }
end

# File lib/bundler.rb, line 401
def original_system(*args)
  with_original_env { Kernel.system(*args) }
end

# File lib/bundler.rb, line 464
def preferred_gemfile_name
  Bundler.settings[:init_gems_rb] ? "gems.rb" : "Gemfile"
end

# File lib/bundler.rb, line 500
def read_file(file)
  SharedHelpers.filesystem_access(file, :read) do
    File.open(file, "r:UTF-8", &:read)
  end
end

# File lib/bundler.rb, line 212
def require(*groups)
  setup(*groups).require(*groups)
end

# File lib/bundler.rb, line 551
def reset!
  reset_paths!
  Plugin.reset!
  reset_rubygems!
end

# File lib/bundler.rb, line 562
def reset_paths!
  @bin_path = nil
  @bundle_path = nil
  @configure = nil
  @configured_bundle_path = nil
  @definition = nil
  @load = nil
  @locked_gems = nil
  @root = nil
  @settings = nil
  @setup = nil
  @user_home = nil
end

# File lib/bundler.rb, line 576
def reset_rubygems!
  return unless defined?(@rubygems) && @rubygems
  rubygems.undo_replacements
  rubygems.reset
  @rubygems = nil
end

# File lib/bundler.rb, line 557
def reset_settings_and_root!
  @settings = nil
  @root = nil
end

# File lib/bundler.rb, line 351
def rm_rf(path)
  FileUtils.remove_entry_secure(path) if path && File.exist?(path)
end

# File lib/bundler.rb, line 317
def root
  @root ||= begin
              SharedHelpers.root
            rescue GemfileNotFound
              bundle_dir = default_bundle_dir
              raise GemfileNotFound, "Could not locate Gemfile or .bundle/ directory" unless bundle_dir
              Pathname.new(File.expand_path("..", bundle_dir))
            end
end

# File lib/bundler.rb, line 255
def ruby_scope
  "#{Bundler.rubygems.ruby_engine}/#{RbConfig::CONFIG["ruby_version"]}"
end

# File lib/bundler.rb, line 506
def safe_load_marshal(data)
  if Gem.respond_to?(:load_safe_marshal)
    Gem.load_safe_marshal
    begin
      Gem::SafeMarshal.safe_load(data)
    rescue Gem::SafeMarshal::Reader::Error, Gem::SafeMarshal::Visitors::ToRuby::Error => e
      raise MarshalError, "#{e.class}: #{e.message}"
    end
  else
    load_marshal(data, marshal_proc: SafeMarshal.proc)
  end
end

# File lib/bundler.rb, line 589
def self_manager
  @self_manager ||= begin
                      require_relative "bundler/self_manager"
                      Bundler::SelfManager.new
                    end
end

# File lib/bundler.rb, line 355
def settings
  @settings ||= Settings.new(app_config_path)
rescue GemfileNotFound
  @settings = Settings.new
end

# File lib/bundler.rb, line 155
def setup(*groups)
  # Return if all groups are already loaded
  return @setup if defined?(@setup) && @setup

  definition.validate_runtime!

  SharedHelpers.print_major_deprecations!

  if groups.empty?
    # Load all groups, but only once
    @setup = load.setup
  else
    load.setup(*groups)
  end
end

# File lib/bundler.rb, line 313
def specs_path
  bundle_path.join("specifications")
end

# File lib/bundler.rb, line 455
def system_bindir
  # Gem.bindir doesn't always return the location that RubyGems will install
  # system binaries. If you put '-n foo' in your .gemrc, RubyGems will
  # install binstubs there instead. Unfortunately, RubyGems doesn't expose
  # that directory at all, so rather than parse .gemrc ourselves, we allow
  # the directory to be set as well, via `bundle config set --local bindir foo`.
  Bundler.settings[:system_bindir] || Bundler.rubygems.gem_bindir
end

# File lib/bundler.rb, line 346
def tmp(name = Process.pid.to_s)
  Kernel.send(:require, "tmpdir")
  Pathname.new(Dir.mktmpdir(["bundler", name]))
end

# File lib/bundler.rb, line 91
def ui
  (defined?(@ui) && @ui) || (self.ui = UI::Shell.new)
end

# File lib/bundler.rb, line 95
def ui=(ui)
  Bundler.rubygems.ui = UI::RGProxy.new(ui)
  @ui = ui
end

# File lib/bundler.rb, line 379
def unbundle_env!
  ENV.replace(unbundle_env(ENV))
end

# File lib/bundler.rb, line 374
def unbundled_env
  unbundle_env(original_env)
end

# File lib/bundler.rb, line 430
def unbundled_exec(*args)
  with_env(unbundled_env) { Kernel.exec(*args) }
end

# File lib/bundler.rb, line 413
def unbundled_system(*args)
  with_unbundled_env { Kernel.system(*args) }
end

# File lib/bundler.rb, line 468
def use_system_gems?
  configured_bundle_path.use_system_gems?
end

# File lib/bundler.rb, line 283
def user_bundle_path(dir = "home")
  env_var, fallback = case dir
                      when "home"
                        ["BUNDLE_USER_HOME", proc { Pathname.new(user_home).join(".bundle") }]
                      when "cache"
                        ["BUNDLE_USER_CACHE", proc { user_bundle_path.join("cache") }]
                      when "config"
                        ["BUNDLE_USER_CONFIG", proc { user_bundle_path.join("config") }]
                      when "plugin"
                        ["BUNDLE_USER_PLUGIN", proc { user_bundle_path.join("plugin") }]
                      else
                        raise BundlerError, "Unknown user path requested: #{dir}"
  end
  # `fallback` will already be a Pathname, but Pathname.new() is
  # idempotent so it's OK
  Pathname.new(ENV.fetch(env_var, &fallback))
end

# File lib/bundler.rb, line 301
def user_cache
  user_bundle_path("cache")
end

# File lib/bundler.rb, line 259
def user_home
  @user_home ||= begin
    home = Bundler.rubygems.user_home
    bundle_home = home ? File.join(home, ".bundle") : nil

    warning = if home.nil?
      "Your home directory is not set."
    elsif !File.directory?(home)
      "`#{home}` is not a directory."
    elsif !File.writable?(home) && (!File.directory?(bundle_home) || !File.writable?(bundle_home))
      "`#{home}` is not writable."
    end

    if warning
      Bundler.ui.warn "#{warning}\n"
      user_home = tmp_home_path
      Bundler.ui.warn "Bundler will use `#{user_home}' as your home directory temporarily.\n"
      user_home
    else
      Pathname.new(home)
    end
  end
end

# File lib/bundler.rb, line 478
def which(executable)
  executable_path = find_executable(executable)
  return executable_path if executable_path

  if (paths = ENV["PATH"])
    quote = '"'
    paths.split(File::PATH_SEPARATOR).find do |path|
      path = path[1..-2] if path.start_with?(quote) && path.end_with?(quote)
      executable_path = find_executable(File.expand_path(executable, path))
      return executable_path if executable_path
    end
  end
end

# File lib/bundler.rb, line 388
def with_clean_env
  removed_message =
    "`Bundler.with_clean_env` has been removed in favor of `Bundler.with_unbundled_env`. " \
    "If you instead want the environment before bundler was originally loaded, use `Bundler.with_original_env`"
  Bundler::SharedHelpers.feature_removed!(removed_message)
end

# File lib/bundler.rb, line 384
def with_original_env
  with_env(original_env) { yield }
end

# File lib/bundler.rb, line 396
def with_unbundled_env
  with_env(unbundled_env) { yield }
end

# File lib/bundler.rb, line 659
def configure_gem_home(path)
  Bundler::SharedHelpers.set_env "GEM_HOME", path.to_s
end

# File lib/bundler.rb, line 650
def configure_gem_path
  unless use_system_gems?
    # this needs to be empty string to cause
    # PathSupport.split_gem_path to only load up the
    # Bundler --path setting as the GEM_PATH.
    Bundler::SharedHelpers.set_env "GEM_PATH", ""
  end
end

# File lib/bundler.rb, line 634
def eval_gemspec(path, contents)
  if contents.start_with?("---") # YAML header
    eval_yaml_gemspec(path, contents)
  else
    # Eval the gemspec from its parent directory, because some gemspecs
    # depend on "./" relative paths.
    SharedHelpers.chdir(path.dirname.to_s) do
      eval(contents, TOPLEVEL_BINDING.dup, path.expand_path.to_s)
    end
  end
rescue ScriptError, StandardError => e
  msg = "There was an error while loading `#{path.basename}`: #{e.message}"

  raise GemspecError, Dsl::DSLError.new(msg, path.to_s, e.backtrace, contents)
end

# File lib/bundler.rb, line 628
def eval_yaml_gemspec(path, contents)
  Kernel.require "psych"

  Gem::Specification.from_yaml(contents)
end

# File lib/bundler.rb, line 622
def load_marshal(data, marshal_proc: nil)
  Marshal.load(data, marshal_proc)
rescue TypeError => e
  raise MarshalError, "#{e.class}: #{e.message}"
end

# File lib/bundler.rb, line 663
def tmp_home_path
  Kernel.send(:require, "tmpdir")
  SharedHelpers.filesystem_access(Dir.tmpdir) do
    path = Bundler.tmp
    at_exit { Bundler.rm_rf(path) }
    path
  end
end

# File lib/bundler.rb, line 598
def unbundle_env(env)
  if env.key?("BUNDLER_ORIG_MANPATH")
    env["MANPATH"] = env["BUNDLER_ORIG_MANPATH"]
  end

  env.delete_if {|k, _| k[0, 7] == "BUNDLE_" }
  env.delete("BUNDLER_SETUP")

  if env.key?("RUBYOPT")
    rubyopt = env["RUBYOPT"].split(" ")
    rubyopt.delete("-r#{File.expand_path("bundler/setup", __dir__)}")
    rubyopt.delete("-rbundler/setup")
    env["RUBYOPT"] = rubyopt.join(" ")
  end

  if env.key?("RUBYLIB")
    rubylib = env["RUBYLIB"].split(File::PATH_SEPARATOR)
    rubylib.delete(__dir__)
    env["RUBYLIB"] = rubylib.join(File::PATH_SEPARATOR)
  end

  env
end

# File lib/bundler.rb, line 673
def with_env(env)
  backup = ENV.to_hash
  ENV.replace(env)
  yield
ensure
  ENV.replace(backup)
end