Added bundler as default gems. Revisit [Feature #12733]

* bin/*, lib/bundler/*, lib/bundler.rb, spec/bundler, man/*:
    Merge from latest stable branch of bundler/bundler repository and
    added workaround patches. I will backport them into upstream.
  * common.mk, defs/gmake.mk: Added `test-bundler` task for test suite
    of bundler.
  * tool/sync_default_gems.rb: Added sync task for bundler.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/bundler/settings.rb

@@ -0,0 +1,463 @@
+# frozen_string_literal: true
+
+require "uri"
+
+module Bundler
+  class Settings
+    autoload :Mirror,  "bundler/mirror"
+    autoload :Mirrors, "bundler/mirror"
+    autoload :Validator, "bundler/settings/validator"
+
+    BOOL_KEYS = %w[
+      allow_bundler_dependency_conflicts
+      allow_deployment_source_credential_changes
+      allow_offline_install
+      auto_clean_without_path
+      auto_install
+      auto_config_jobs
+      cache_all
+      cache_all_platforms
+      cache_command_is_package
+      console_command
+      default_install_uses_path
+      deployment
+      deployment_means_frozen
+      disable_checksum_validation
+      disable_exec_load
+      disable_local_branch_check
+      disable_multisource
+      disable_platform_warnings
+      disable_shared_gems
+      disable_version_check
+      error_on_stderr
+      force_ruby_platform
+      forget_cli_options
+      frozen
+      gem.coc
+      gem.mit
+      global_path_appends_ruby_scope
+      global_gem_cache
+      ignore_messages
+      init_gems_rb
+      list_command
+      lockfile_uses_separate_rubygems_sources
+      major_deprecations
+      no_install
+      no_prune
+      only_update_to_newer_versions
+      path_relative_to_cwd
+      path.system
+      plugins
+      prefer_gems_rb
+      print_only_version_number
+      setup_makes_kernel_gem_public
+      silence_root_warning
+      skip_default_git_sources
+      specific_platform
+      suppress_install_using_messages
+      unlock_source_unlocks_spec
+      update_requires_all_flag
+      use_gem_version_promoter_for_major_updates
+      viz_command
+    ].freeze
+
+    NUMBER_KEYS = %w[
+      jobs
+      redirect
+      retry
+      ssl_verify_mode
+      timeout
+    ].freeze
+
+    ARRAY_KEYS = %w[
+      with
+      without
+    ].freeze
+
+    DEFAULT_CONFIG = {
+      :disable_version_check => true,
+      :redirect => 5,
+      :retry => 3,
+      :timeout => 10,
+    }.freeze
+
+    def initialize(root = nil)
+      @root            = root
+      @local_config    = load_config(local_config_file)
+      @global_config   = load_config(global_config_file)
+      @temporary       = {}
+    end
+
+    def [](name)
+      key = key_for(name)
+      value = @temporary.fetch(key) do
+              @local_config.fetch(key) do
+              ENV.fetch(key) do
+              @global_config.fetch(key) do
+              DEFAULT_CONFIG.fetch(name) do
+                nil
+              end end end end end
+
+      converted_value(value, name)
+    end
+
+    def set_command_option(key, value)
+      if Bundler.feature_flag.forget_cli_options?
+        temporary(key => value)
+        value
+      else
+        command = if value.nil?
+          "bundle config --delete #{key}"
+        else
+          "bundle config #{key} #{Array(value).join(":")}"
+        end
+
+        Bundler::SharedHelpers.major_deprecation 2,\
+          "flags passed to commands " \
+          "will no longer be automatically remembered. Instead please set flags " \
+          "you want remembered between commands using `bundle config " \
+          "<setting name> <setting value>`, i.e. `#{command}`"
+
+        set_local(key, value)
+      end
+    end
+
+    def set_command_option_if_given(key, value)
+      return if value.nil?
+      set_command_option(key, value)
+    end
+
+    def set_local(key, value)
+      local_config_file || raise(GemfileNotFound, "Could not locate Gemfile")
+
+      set_key(key, value, @local_config, local_config_file)
+    end
+
+    def temporary(update)
+      existing = Hash[update.map {|k, _| [k, @temporary[key_for(k)]] }]
+      update.each do |k, v|
+        set_key(k, v, @temporary, nil)
+      end
+      return unless block_given?
+      begin
+        yield
+      ensure
+        existing.each {|k, v| set_key(k, v, @temporary, nil) }
+      end
+    end
+
+    def set_global(key, value)
+      set_key(key, value, @global_config, global_config_file)
+    end
+
+    def all
+      env_keys = ENV.keys.grep(/\ABUNDLE_.+/)
+
+      keys = @temporary.keys | @global_config.keys | @local_config.keys | env_keys
+
+      keys.map do |key|
+        key.sub(/^BUNDLE_/, "").gsub(/__/, ".").downcase
+      end
+    end
+
+    def local_overrides
+      repos = {}
+      all.each do |k|
+        repos[$'] = self[k] if k =~ /^local\./
+      end
+      repos
+    end
+
+    def mirror_for(uri)
+      uri = URI(uri.to_s) unless uri.is_a?(URI)
+      gem_mirrors.for(uri.to_s).uri
+    end
+
+    def credentials_for(uri)
+      self[uri.to_s] || self[uri.host]
+    end
+
+    def gem_mirrors
+      all.inject(Mirrors.new) do |mirrors, k|
+        mirrors.parse(k, self[k]) if k.start_with?("mirror.")
+        mirrors
+      end
+    end
+
+    def locations(key)
+      key = key_for(key)
+      locations = {}
+      locations[:temporary] = @temporary[key] if @temporary.key?(key)
+      locations[:local]  = @local_config[key] if @local_config.key?(key)
+      locations[:env]    = ENV[key] if ENV[key]
+      locations[:global] = @global_config[key] if @global_config.key?(key)
+      locations[:default] = DEFAULT_CONFIG[key] if DEFAULT_CONFIG.key?(key)
+      locations
+    end
+
+    def pretty_values_for(exposed_key)
+      key = key_for(exposed_key)
+
+      locations = []
+
+      if @temporary.key?(key)
+        locations << "Set for the current command: #{converted_value(@temporary[key], exposed_key).inspect}"
+      end
+
+      if @local_config.key?(key)
+        locations << "Set for your local app (#{local_config_file}): #{converted_value(@local_config[key], exposed_key).inspect}"
+      end
+
+      if value = ENV[key]
+        locations << "Set via #{key}: #{converted_value(value, exposed_key).inspect}"
+      end
+
+      if @global_config.key?(key)
+        locations << "Set for the current user (#{global_config_file}): #{converted_value(@global_config[key], exposed_key).inspect}"
+      end
+
+      return ["You have not configured a value for `#{exposed_key}`"] if locations.empty?
+      locations
+    end
+
+    # for legacy reasons, in Bundler 1, the ruby scope isnt appended when the setting comes from ENV or the global config,
+    # nor do we respect :disable_shared_gems
+    def path
+      key  = key_for(:path)
+      path = ENV[key] || @global_config[key]
+      if path && !@temporary.key?(key) && !@local_config.key?(key)
+        return Path.new(path, Bundler.feature_flag.global_path_appends_ruby_scope?, false, false)
+      end
+
+      system_path = self["path.system"] || (self[:disable_shared_gems] == false)
+      Path.new(self[:path], true, system_path, Bundler.feature_flag.default_install_uses_path?)
+    end
+
+    Path = Struct.new(:explicit_path, :append_ruby_scope, :system_path, :default_install_uses_path) do
+      def path
+        path = base_path
+        path = File.join(path, Bundler.ruby_scope) if append_ruby_scope && !use_system_gems?
+        path
+      end
+
+      def use_system_gems?
+        return true if system_path
+        return false if explicit_path
+        !default_install_uses_path
+      end
+
+      def base_path
+        path = explicit_path
+        path ||= ".bundle" unless use_system_gems?
+        path ||= Bundler.rubygems.gem_dir
+        path
+      end
+
+      def base_path_relative_to_pwd
+        base_path = Pathname.new(self.base_path)
+        expanded_base_path = base_path.expand_path(Bundler.root)
+        relative_path = expanded_base_path.relative_path_from(Pathname.pwd)
+        if relative_path.to_s.start_with?("..")
+          relative_path = base_path if base_path.absolute?
+        else
+          relative_path = Pathname.new(File.join(".", relative_path))
+        end
+        relative_path
+      rescue ArgumentError
+        expanded_base_path
+      end
+
+      def validate!
+        return unless explicit_path && system_path
+        path = Bundler.settings.pretty_values_for(:path)
+        path.unshift(nil, "path:") unless path.empty?
+        system_path = Bundler.settings.pretty_values_for("path.system")
+        system_path.unshift(nil, "path.system:") unless system_path.empty?
+        disable_shared_gems = Bundler.settings.pretty_values_for(:disable_shared_gems)
+        disable_shared_gems.unshift(nil, "disable_shared_gems:") unless disable_shared_gems.empty?
+        raise InvalidOption,
+          "Using a custom path while using system gems is unsupported.\n#{path.join("\n")}\n#{system_path.join("\n")}\n#{disable_shared_gems.join("\n")}"
+      end
+    end
+
+    def allow_sudo?
+      key = key_for(:path)
+      path_configured = @temporary.key?(key) || @local_config.key?(key)
+      !path_configured
+    end
+
+    def ignore_config?
+      ENV["BUNDLE_IGNORE_CONFIG"]
+    end
+
+    def app_cache_path
+      @app_cache_path ||= self[:cache_path] || "vendor/cache"
+    end
+
+    def validate!
+      all.each do |raw_key|
+        [@local_config, ENV, @global_config].each do |settings|
+          value = converted_value(settings[key_for(raw_key)], raw_key)
+          Validator.validate!(raw_key, value, settings.to_hash.dup)
+        end
+      end
+    end
+
+    def key_for(key)
+      key = Settings.normalize_uri(key).to_s if key.is_a?(String) && /https?:/ =~ key
+      key = key.to_s.gsub(".", "__").upcase
+      "BUNDLE_#{key}"
+    end
+
+  private
+
+    def parent_setting_for(name)
+      split_specific_setting_for(name)[0]
+    end
+
+    def specific_gem_for(name)
+      split_specific_setting_for(name)[1]
+    end
+
+    def split_specific_setting_for(name)
+      name.split(".")
+    end
+
+    def is_bool(name)
+      BOOL_KEYS.include?(name.to_s) || BOOL_KEYS.include?(parent_setting_for(name.to_s))
+    end
+
+    def to_bool(value)
+      case value
+      when nil, /\A(false|f|no|n|0|)\z/i, false
+        false
+      else
+        true
+      end
+    end
+
+    def is_num(key)
+      NUMBER_KEYS.include?(key.to_s)
+    end
+
+    def is_array(key)
+      ARRAY_KEYS.include?(key.to_s)
+    end
+
+    def to_array(value)
+      return [] unless value
+      value.split(":").map(&:to_sym)
+    end
+
+    def array_to_s(array)
+      array = Array(array)
+      return nil if array.empty?
+      array.join(":").tr(" ", ":")
+    end
+
+    def set_key(raw_key, value, hash, file)
+      raw_key = raw_key.to_s
+      value = array_to_s(value) if is_array(raw_key)
+
+      key = key_for(raw_key)
+
+      return if hash[key] == value
+
+      hash[key] = value
+      hash.delete(key) if value.nil?
+
+      Validator.validate!(raw_key, converted_value(value, raw_key), hash)
+
+      return unless file
+      SharedHelpers.filesystem_access(file) do |p|
+        FileUtils.mkdir_p(p.dirname)
+        require "bundler/yaml_serializer"
+        p.open("w") {|f| f.write(YAMLSerializer.dump(hash)) }
+      end
+    end
+
+    def converted_value(value, key)
+      if is_array(key)
+        to_array(value)
+      elsif value.nil?
+        nil
+      elsif is_bool(key) || value == "false"
+        to_bool(value)
+      elsif is_num(key)
+        value.to_i
+      else
+        value.to_s
+      end
+    end
+
+    def global_config_file
+      if ENV["BUNDLE_CONFIG"] && !ENV["BUNDLE_CONFIG"].empty?
+        Pathname.new(ENV["BUNDLE_CONFIG"])
+      else
+        begin
+          Bundler.user_bundle_path("config")
+        rescue PermissionError, GenericSystemCallError
+          nil
+        end
+      end
+    end
+
+    def local_config_file
+      Pathname.new(@root).join("config") if @root
+    end
+
+    CONFIG_REGEX = %r{ # rubocop:disable Style/RegexpLiteral
+      ^
+      (BUNDLE_.+):\s # the key
+      (?: !\s)? # optional exclamation mark found with ruby 1.9.3
+      (['"]?) # optional opening quote
+      (.* # contents of the value
+        (?: # optionally, up until the next key
+          (\n(?!BUNDLE).+)*
+        )
+      )
+      \2 # matching closing quote
+      $
+    }xo
+
+    def load_config(config_file)
+      return {} if !config_file || ignore_config?
+      SharedHelpers.filesystem_access(config_file, :read) do |file|
+        valid_file = file.exist? && !file.size.zero?
+        return {} unless valid_file
+        require "bundler/yaml_serializer"
+        YAMLSerializer.load file.read
+      end
+    end
+
+    PER_URI_OPTIONS = %w[
+      fallback_timeout
+    ].freeze
+
+    NORMALIZE_URI_OPTIONS_PATTERN =
+      /
+        \A
+        (\w+\.)? # optional prefix key
+        (https?.*?) # URI
+        (\.#{Regexp.union(PER_URI_OPTIONS)})? # optional suffix key
+        \z
+      /ix
+
+    # TODO: duplicates Rubygems#normalize_uri
+    # TODO: is this the correct place to validate mirror URIs?
+    def self.normalize_uri(uri)
+      uri = uri.to_s
+      if uri =~ NORMALIZE_URI_OPTIONS_PATTERN
+        prefix = $1
+        uri = $2
+        suffix = $3
+      end
+      uri = "#{uri}/" unless uri.end_with?("/")
+      uri = URI(uri)
+      unless uri.absolute?
+        raise ArgumentError, format("Gem sources must be absolute. You provided '%s'.", uri)
+      end
+      "#{prefix}#{uri}#{suffix}"
+    end
+  end
+end