by Lin Jen-Shin (godfat)
Ruby-Interactive-ruBy – Yet another interactive Ruby shell
Rib is based on the design of ripl and the work of ripl-rc, some of the features are also inspired by pry. The aim of Rib is to be fully featured and yet very easy to opt-out or opt-in other features. It shall be simple, lightweight and modular so that everyone could customize Rib.
- Tested with MRI 1.8.7, 1.9.2 and Rubinius 1.2, JRuby 1.6
- All gem dependencies are optional, but it’s highly recommended to use Rib with bond for tab completion.
gem install rib
As an interactive shell
As IRB (reads
As Rails console
As Ramaze console
As a console for whichever the app in the current path it should be (for now, it’s either Rails or Ramaze)
As a fully featured interactive Ruby shell (as ripl-rc)
As a fully featured app console (yes, some commands could be used together)
rib all auto # or `rib auto all`, the order doesn't really matter
You can customize Rib’s behaviour by setting
~/.config/rib/config.rb (by default). Since it’s merely a Ruby script which would be loaded into memory before launching Rib shell session, You can put any customization or monkey patch there. Personally, I use all plugins provided by Rib.
As you can see, putting
require 'rib/all' into config file is exactly the same as running
rib all without a config file. What
rib all would do is merely require the file, and that file is also merely requiring all plugins. Suppose you only want to use the core plugins and color plugin, you’ll put this into your config file:
require 'rib/core' require 'rib/more/color'
You can also write your plugins there. Here’s another example:
require 'rib/core' require 'pp' Rib.config[:prompt] = '$ ' module RibPP Rib::Shell.send(:include, self) def format_result result result_prompt + result.pretty_inspect end end
So that we override the original format_result to pretty_inspect the result. You can also build your own gem and then simply require it in your config file. To see a list of overridable API, please read api.rb
Rib.config[:config] | The path where config should be located Rib.config[:name] | The name of this shell Rib.config[:result_prompt] | Default is "=>" Rib.config[:prompt] | Default is ">>" Rib.config[:binding] | Context, default: TOPLEVEL_BINDING Rib.config[:exit] | Commands to exit, default [nil, 'exit', 'quit']
Plugin specific configuration
Rib.config[:completion] | Completion: Bond config Rib.config[:history_file] | Default is "~/.rib/config/history.rb" Rib.config[:history_size] | Default is 500 Rib.config[:color] | A hash of Class => :color mapping
As a debugging/interacting tool
Rib could be used as a kind of debugging tool which you can set break point in the source program.
require 'rib/config' # This would load your ~/.config/rib/config.rb require 'rib/anchor' # If you enabled this in config, then needed not. Rib.anchor binding # This would give you an interactive shell # when your program has been executed here. Rib.anchor 123 # You can also anchor on an object.
But this might be called in a loop, you might only want to enter the shell under certain circumstance, then you’ll do:
require 'rib/debug' Rib.enable_anchor do # Only `Rib.anchor` called in the block would launch a shell end Rib.anchor binding # No effect (no-op) outside the block
Anchor could also be nested. The level would be shown on the prompt, starting from 1.
In place editing
Whenever you called:
Rib would open an editor according to $EDITOR (
ENV['EDITOR']) for you. After save and leave the editor, Rib would evaluate what you had input. This also works inside an anchor. To use it, require either rib/more/edit or rib/more or rib/all.
As a shell framework
The essence is:
All others are optional. The core plugins are lying in
rib/core/*.rb, and more plugins are lying in
rib/more/*.rb. You can read
bin/rib-ramaze as a Rib App reference implementation, because it’s very simple, simpler than rib-rails.
Apache License 2.0
Copyright (c) 2010-2011, Lin Jen-Shin (godfat)
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.