Open Source

Quickly open the source file of a Class, Module, or Method in your favourite editor, from Ruby.

Usage

First make sure your EDITOR environment variable is set (How do I find and set my $EDITOR environment variable?).

Then use as you wish

# probably in a console, though doesn't have to be
require 'open_source' # not needed if it's in your Gemfile, and this environment is loaded by bundler

open_source "User" # opens file where User class is defined
oso User           # same as above; use the aliases for ease of use!
oso Authenticable  # opens file where Authenticable module is defined
oso :log           # opens file where "log" method is defined
oso "log"          # same
oso method :log    # you get the idea
oso Rails.method(:application)
oso User.instance_method(:name)

Line numbers are supported too, currently for Vi and VsCode.

Configuration

Using a specific editor for this gem

It's possible to use the OPEN_SOURCE_GEM_EDITOR env variable to set a specific editor for use with this gem, if you don't want to use your standard EDITOR.

For example:

# .bashrc or wherever
EDITOR=vim                  # standard terminal based editor
OPEN_SOURCE_GEM_EDITOR=gvim # a GUI version; opens in a different window. Takes priority over EDITOR

This is optional, and if you normally use a GUI editor anyway it probably won't be needed.

Installation

Add this line to your application's Gemfile:

gem 'open_source_location', require: "open_source"

And then execute:

$ bundle install

Or install it yourself as:

$ gem install open_source_location

Just make sure you then require 'open_source' where you need it.

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/johansenja/open_source.

License

The gem is available as open source under the terms of the MIT License.