class Bundler::Plugin::Index

Attributes

commands[R]

Public Class Methods

new() click to toggle source
# File lib/bundler/plugin/index.rb, line 24
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 lib/bundler/plugin/index.rb, line 109
def command_plugin(command)
  @commands[command]
end
global_index_file() click to toggle source

Path where the global index file is stored

# File lib/bundler/plugin/index.rb, line 91
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 lib/bundler/plugin/index.rb, line 134
def hook_plugins(event)
  @hooks[event] || []
end
index_file() click to toggle source

Path of default index file

# File lib/bundler/plugin/index.rb, line 86
def index_file
  Plugin.root.join("index")
end
installed?(name) click to toggle source
# File lib/bundler/plugin/index.rb, line 113
def installed?(name)
  @plugin_paths[name]
end
installed_plugins() click to toggle source
# File lib/bundler/plugin/index.rb, line 117
def installed_plugins
  @plugin_paths.keys
end
load_paths(name) click to toggle source
# File lib/bundler/plugin/index.rb, line 104
def load_paths(name)
  @load_paths[name]
end
local_index_file() click to toggle source

Path where the local index file is stored

# File lib/bundler/plugin/index.rb, line 96
def local_index_file
  Plugin.local_root.join("index")
end
plugin_commands(plugin) click to toggle source
# File lib/bundler/plugin/index.rb, line 121
def plugin_commands(plugin)
  @commands.find_all {|_, n| n == plugin }.map(&:first)
end
plugin_path(name) click to toggle source
# File lib/bundler/plugin/index.rb, line 100
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 lib/bundler/plugin/index.rb, line 49
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 lib/bundler/plugin/index.rb, line 125
def source?(source)
  @sources.key? source
end
source_plugin(name) click to toggle source
# File lib/bundler/plugin/index.rb, line 129
def source_plugin(name)
  @sources[name]
end
unregister_plugin(name) click to toggle source
# File lib/bundler/plugin/index.rb, line 73
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 lib/bundler/plugin/index.rb, line 146
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 lib/bundler/plugin/index.rb, line 167
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