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 (official CRuby), Rubinius and JRuby.
- 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
You could also run in production and pass arguments normally as you'd do in
rails console or
rib rails production --sandbox --debugger
Note: You might need to add ruby-debug or ruby-debug19 to your Gemfile if you're passing --debugger and using bundler together.
For Rails Spring support, put this line
As Ramaze console
As Rack console
As a console for whichever the app in the current path it should be (for now, it's either Rails, Ramaze or Rack)
If you're trying to use
rib auto for a Rails app, you could also pass
arguments as if you were using
rib auto is merely passing
rib auto production --sandbox --debugger
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 a config file located at
$RIB_HOME environment variable. Since it's merely a Ruby script
which would be loaded into memory before launching Rib shell session, You can
put any customization or monkey patch there. Personally, I use all plugins
provided by Rib.
My Personal ~/.config/rib/config
As you can see, putting
require 'rib/all' into config file is exactly the
same as running
rib all without a config file. What
rib all would do is
merely require the file, and that file is also merely requiring all plugins,
but without extra plugins, which you should enable them one by one. This
is because most extra plugins are depending on other gems, or hard to work
with other plugins, or having strong personal tastes, so you won't want to
enable them all. Suppose you only want to use the core plugins and color
plugin, you'll put this into your config file:
require 'rib/core' require 'rib/more/color'
You can also write your plugins there. Here's another example:
require 'rib/core' require 'pp' Rib.config[:prompt] = '$ ' 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
|ENV['RIB_HOME']||Specify where Rib should store config and history|
|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] # control+d|
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|
|Rib.config[:autoindent_spaces]||How to indent? Default is two spaces: ' '|
List of core plugins
require 'rib/core' # You get all of the followings:
Completion from bond.
Remember history in a history file.
Strip backtrace before Rib.
You can interpret multiple lines.
Remove duplicated input from history.
Save the last result in
_and the last exception in
List of more plugins
require 'rib/more' # You get all of the followings:
Not only readline could have multiline history, but also the history file.
Show backtrace bottom-up instead of the regular top-down.
Class based colorizing.
Make readline aware of multiline history.
See As a debugging/interacting tool.
See In place editing.
List of extra plugins
require 'rib/extra' for extra plugins because they might not
be doing what you would expect or want, or having an external dependency,
or having conflicted semantics.
require 'rib/extra/autoindent'This plugin is depending on:
- readline plugin
- multiline plugin
Which would autoindent your input.
require 'rib/extra/hirb'This plugin is depending on:
Which would print the result with hirb.
require 'rib/extra/debugger'This plugin is depending on:
Rib.debug, which would do similar things as
Rib.anchorbut only more powerful. However, this is not well tested and might not work well. Please let me know if you have any issue using it, thanks!
require 'rib/extra/paging'This plugin is depending on
Which would pass the result to
$PAGERif set) if the result string is longer than the screen.
require 'rib/extra/spring'in your
~/.spring.rbfor Rails Spring support.
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 Rib config require 'rib/more/anchor' # If you enabled anchor 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:
require 'rib/more/edit' Rib.edit
Rib would open an editor according to
ENV['EDITOR']) for you.
By default it would pick vim if no
$EDITOR was set. 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
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.
Other plugins and apps
rib rest-coreRun as interactive rest-core client
rib herokuRun console on Heroku Cedar with your config
- Andrew Liu (@eggegg)
- ayaya (@ayamomiji)
- Lin Jen-Shin (@godfat)
- Mr. Big Cat (@miaout17)
Apache License 2.0
Copyright (c) 2011-2016, 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.