модуль Bundler::Plugin

# File lib/bundler/plugin.rb, line 109
def add_command(command, cls)
  @commands[command] = cls
end

# File lib/bundler/plugin.rb, line 158
def add_hook(event, &block)
  unless Events.defined_event?(event)
    raise ArgumentError, "Event '#{event}' not defined in Bundler::Plugin::Events"
  end
  @hooks_by_event[event.to_s] << block
end

# File lib/bundler/plugin.rb, line 129
def add_source(source, cls)
  @sources[source] = cls
end

# File lib/bundler/plugin.rb, line 279
def add_to_load_path(load_paths)
  if insert_index = Bundler.rubygems.load_path_insert_index
    $LOAD_PATH.insert(insert_index, *load_paths)
  else
    $LOAD_PATH.unshift(*load_paths)
  end
end

# File lib/bundler/plugin.rb, line 104
def cache
  @cache ||= root.join("cache")
end

# File lib/bundler/plugin.rb, line 114
def command?(command)
  !index.command_plugin(command).nil?
end

# File lib/bundler/plugin.rb, line 120
def exec_command(command, args)
  raise UndefinedCommandError, "Command `#{command}` not found" unless command? command

  load_plugin index.command_plugin(command) unless @commands.key? command

  @commands[command].new.exec(command, args)
end

# File lib/bundler/plugin.rb, line 55
def gemfile_install(gemfile = nil, &inline)
  builder = DSL.new
  if block_given?
    builder.instance_eval(&inline)
  else
    builder.eval_gemfile(gemfile)
  end
  definition = builder.to_definition(nil, true)

  return if definition.dependencies.empty?

  plugins = definition.dependencies.map(&:name).reject {|p| index.installed? p }
  installed_specs = Installer.new.install_definition(definition)

  save_plugins plugins, installed_specs, builder.inferred_plugins
rescue RuntimeError => e
  unless e.is_a?(GemfileError)
    Bundler.ui.error "Failed to install plugin: #{e.message}\n  #{e.backtrace[0]}"
  end
  raise
end

# File lib/bundler/plugin.rb, line 99
def global_root
  Bundler.user_bundle_path("plugin")
end

# File lib/bundler/plugin.rb, line 171
def hook(event, *args, &arg_blk)
  return unless Bundler.feature_flag.plugins?
  unless Events.defined_event?(event)
    raise ArgumentError, "Event '#{event}' not defined in Bundler::Plugin::Events"
  end

  plugins = index.hook_plugins(event)
  return unless plugins.any?

  (plugins - @loaded_plugin_names).each {|name| load_plugin(name) }

  @hooks_by_event[event].each {|blk| blk.call(*args, &arg_blk) }
end

# File lib/bundler/plugin.rb, line 78
def index
  @index ||= Index.new
end

# File lib/bundler/plugin.rb, line 37
def install(names, options)
  specs = Installer.new.install(names, options)

  save_plugins names, specs
rescue PluginError => e
  if specs
    specs_to_delete = Hash[specs.select {|k, _v| names.include?(k) && !index.commands.values.include?(k) }]
    specs_to_delete.values.each {|spec| Bundler.rm_rf(spec.full_gem_path) }
  end

  Bundler.ui.error "Failed to install plugin #{name}: #{e.message}\n  #{e.backtrace.join("\n ")}"
end

# File lib/bundler/plugin.rb, line 188
def installed?(plugin)
  Index.new.installed?(plugin)
end

# File lib/bundler/plugin.rb, line 263
def load_plugin(name)
  # Need to ensure before this that plugin root where the rest of gems
  # are installed to be on load path to support plugin deps. Currently not
  # done to avoid conflicts
  path = index.plugin_path(name)

  add_to_load_path(index.load_paths(name))

  load path.join(PLUGIN_FILE_NAME)

  @loaded_plugin_names << name
rescue RuntimeError => e
  Bundler.ui.error "Failed loading plugin #{name}: #{e.message}"
  raise
end

# File lib/bundler/plugin.rb, line 94
def local_root
  Bundler.app_config_path.join("plugin")
end

# File lib/bundler/plugin.rb, line 227
def register_plugin(name, spec, optional_plugin = false)
  commands = @commands
  sources = @sources
  hooks = @hooks_by_event

  @commands = {}
  @sources = {}
  @hooks_by_event = Hash.new {|h, k| h[k] = [] }

  load_paths = spec.load_paths
  add_to_load_path(load_paths)
  path = Pathname.new spec.full_gem_path

  begin
    load path.join(PLUGIN_FILE_NAME), true
  rescue StandardError => e
    raise MalformattedPlugin, "#{e.class}: #{e.message}"
  end

  if optional_plugin && @sources.keys.any? {|s| source? s }
    Bundler.rm_rf(path)
    false
  else
    index.register_plugin(name, path.to_s, load_paths, @commands.keys,
      @sources.keys, @hooks_by_event.keys)
    true
  end
ensure
  @commands = commands
  @sources = sources
  @hooks_by_event = hooks
end

# File lib/bundler/plugin.rb, line 21
def reset!
  instance_variables.each {|i| remove_instance_variable(i) }

  @sources = {}
  @commands = {}
  @hooks_by_event = Hash.new {|h, k| h[k] = [] }
  @loaded_plugin_names = []
end

# File lib/bundler/plugin.rb, line 86
def root
  @root ||= if SharedHelpers.in_bundle?
    local_root
  else
    global_root
  end
end

# File lib/bundler/plugin.rb, line 198
def save_plugins(plugins, specs, optional_plugins = [])
  plugins.each do |name|
    spec = specs[name]
    validate_plugin! Pathname.new(spec.full_gem_path)
    installed = register_plugin(name, spec, optional_plugins.include?(name))
    Bundler.ui.info "Installed plugin #{name}" if installed
  end
end

# File lib/bundler/plugin.rb, line 139
def source(name)
  raise UnknownSourceError, "Source #{name} not found" unless source? name

  load_plugin(index.source_plugin(name)) unless @sources.key? name

  @sources[name]
end

# File lib/bundler/plugin.rb, line 134
def source?(name)
  !index.source_plugin(name.to_s).nil?
end

# File lib/bundler/plugin.rb, line 150
def source_from_lock(locked_opts)
  src = source(locked_opts["type"])

  src.new(locked_opts.merge("uri" => locked_opts["remote"]))
end

# File lib/bundler/plugin.rb, line 213
def validate_plugin!(plugin_path)
  plugin_file = plugin_path.join(PLUGIN_FILE_NAME)
  raise MalformattedPlugin, "#{PLUGIN_FILE_NAME} was not found in the plugin." unless plugin_file.file?
end