bethesque / rack-tail

Rack::Tail

Like Rack::File, but it serves the last lines of a file.

Installation

Add this line to your application's Gemfile:

gem 'rack-tail'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rack-tail

Usage

Rack::Tail serves files below the +root+ directory given, according to the path info of the Rack request. e.g. when Rack::Tail.new("/etc") is used, you can access the last n lines of the 'passwd' file as http://localhost:9292/passwd?n=3

Great idea...

Be careful how you use this.

Here's a legitimate example.

require 'rack/tail'

app = map "/logging" do
  run Rack::Tail.new("logs")
end

run app

# Now open http://localhost:9292/logging/app.log?n=2

Note that you cannot hack the URL to access any files that are outside the root directory specified in the constructor.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request