childprocess

https://github.com/enkessler/childprocess

Ruby

Cross-platform Ruby library for managing child processes.

Observable#notify_observers

Notify observers of a change in state *if* this object's changed state is
+true+.

This will invoke the method named in #add_observer, passing <tt>*arg</tt>.
The changed state is then set to +false+.

<tt>*arg</tt>:: Any arguments to pass to the observers.

Source | Google | Stack overflow

Edit

git clone [email protected]:enkessler/childprocess.git
cd childprocess
open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Observable-notify_observers-for-pr

# Commit to git

git add git commit -m "better docs for Observable#notify_observers"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Observable-notify_observers-for-pr

hub pull-request

# Celebrate!