ProcessTail 
https://github.com/hibariya/process_tail
Description
ProcessTail traces other process' write(2) system call and copy its buffer. So you can get other process outputs.
Problems
- Mac OSX and Windows are not supported at the moment
- SEGV occures occasionally
- Multithreaded process support
Installation
Add this line to your application's Gemfile:
gem 'process_tail'
And then execute:
$ bundle
Or install it yourself as:
$ gem install process_tail
Usage
ProcessTail.open pid, :stdout do |io|
puts "Recent stdout of #{pid}: #{io.gets}"
end
Contributing
- Fork it ( https://github.com/hibariya/process_tail/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request