class Bundler::Plugin::Index

Attributes

commands[R]

Public Class Methods

new() click to toggle source

# File bundler/plugin/index.rb, line 25
def initialize
  @plugin_paths = {}
  @commands = {}
  @sources = {}
  @hooks = {}
  @load_paths = {}

  begin
    load_index(global_index_file, true)
  rescue GenericSystemCallError
    # no need to fail when on a read-only FS, for example
    nil
  end
  load_index(local_index_file) if SharedHelpers.in_bundle?
end

Public Instance Methods

command_plugin(command) click to toggle source

Fetch the name of plugin handling the command

# File bundler/plugin/index.rb, line 110
def command_plugin(command)
  @commands[command]
end

global_index_file() click to toggle source

Path where the global index file is stored

# File bundler/plugin/index.rb, line 92
def global_index_file
  Plugin.global_root.join("index")
end

hook_plugins(event) click to toggle source

Returns the list of plugin names handling the passed event

# File bundler/plugin/index.rb, line 135
def hook_plugins(event)
  @hooks[event] || []
end

index_file() click to toggle source

Path of default index file

# File bundler/plugin/index.rb, line 87
def index_file
  Plugin.root.join("index")
end

installed?(name) click to toggle source

# File bundler/plugin/index.rb, line 114
def installed?(name)
  @plugin_paths[name]
end

installed_plugins() click to toggle source

# File bundler/plugin/index.rb, line 118
def installed_plugins
  @plugin_paths.keys
end

load_paths(name) click to toggle source

# File bundler/plugin/index.rb, line 105
def load_paths(name)
  @load_paths[name]
end

local_index_file() click to toggle source

Path where the local index file is stored

# File bundler/plugin/index.rb, line 97
def local_index_file
  Plugin.local_root.join("index")
end

plugin_commands(plugin) click to toggle source

# File bundler/plugin/index.rb, line 122
def plugin_commands(plugin)
  @commands.find_all {|_, n| n == plugin }.map(&:first)
end

plugin_path(name) click to toggle source

# File bundler/plugin/index.rb, line 101
def plugin_path(name)
  Pathname.new @plugin_paths[name]
end

register_plugin(name, path, load_paths, commands, sources, hooks) click to toggle source

This function is to be called when a new plugin is installed. This function shall add the functions of the plugin to existing maps and also the name to source location.

@param [String] name of the plugin to be registered @param [String] path where the plugin is installed @param [Array<String>] load_paths for the plugin @param [Array<String>] commands that are handled by the plugin @param [Array<String>] sources that are handled by the plugin

# File bundler/plugin/index.rb, line 50
def register_plugin(name, path, load_paths, commands, sources, hooks)
  old_commands = @commands.dup

  common = commands & @commands.keys
  raise CommandConflict.new(name, common) unless common.empty?
  commands.each {|c| @commands[c] = name }

  common = sources & @sources.keys
  raise SourceConflict.new(name, common) unless common.empty?
  sources.each {|k| @sources[k] = name }

  hooks.each do |event|
    event_hooks = (@hooks[event] ||= []) << name
    event_hooks.uniq!
  end

  @plugin_paths[name] = path
  @load_paths[name] = load_paths
  save_index
rescue StandardError
  @commands = old_commands
  raise
end

source?(source) click to toggle source

# File bundler/plugin/index.rb, line 126
def source?(source)
  @sources.key? source
end

source_plugin(name) click to toggle source

# File bundler/plugin/index.rb, line 130
def source_plugin(name)
  @sources[name]
end

unregister_plugin(name) click to toggle source

# File bundler/plugin/index.rb, line 74
def unregister_plugin(name)
  @commands.delete_if {|_, v| v == name }
  @sources.delete_if {|_, v| v == name }
  @hooks.each do |hook, names|
    names.delete(name)
    @hooks.delete(hook) if names.empty?
  end
  @plugin_paths.delete(name)
  @load_paths.delete(name)
  save_index
end

Private Instance Methods

load_index(index_file, global = false) click to toggle source

Reads the index file from the directory and initializes the instance variables.

It skips the sources if the second param is true @param [Pathname] index file path @param [Boolean] is the index file global index

# File bundler/plugin/index.rb, line 147
def load_index(index_file, global = false)
  SharedHelpers.filesystem_access(index_file, :read) do |index_f|
    valid_file = index_f && index_f.exist? && !index_f.size.zero?
    break unless valid_file

    data = index_f.read

    require_relative "../yaml_serializer"
    index = YAMLSerializer.load(data)

    @commands.merge!(index["commands"])
    @hooks.merge!(index["hooks"])
    @load_paths.merge!(index["load_paths"])
    @plugin_paths.merge!(index["plugin_paths"])
    @sources.merge!(index["sources"]) unless global
  end
end

save_index() click to toggle source

Should be called when any of the instance variables change. Stores the instance variables in YAML format. (The instance variables are supposed to be only String key value pairs)

# File bundler/plugin/index.rb, line 168
def save_index
  index = {
    "commands"     => @commands,
    "hooks"        => @hooks,
    "load_paths"   => @load_paths,
    "plugin_paths" => @plugin_paths,
    "sources"      => @sources,
  }

  require_relative "../yaml_serializer"
  SharedHelpers.filesystem_access(index_file) do |index_f|
    FileUtils.mkdir_p(index_f.dirname)
    File.open(index_f, "w") {|f| f.puts YAMLSerializer.dump(index) }
  end
end