Ernie

By Tom Preston-Werner (tom@mojombo.com)

WARNING: This software is alpha and should not be used in production without extensive testing. You should not consider this project production ready until it is released as 1.0.

Description

Ernie is a BERT-RPC server implementation that uses an Erlang server to accept incoming connections, and then delegates the request to a Ruby handler via Erlectricity.

Installation

You must have Erlang installed before installing Ernie.

gem install mojombo-ernie -s https://gems.github.com

Running

Usage: ernie [options] <handler>
    -n, --name NAME                  Node name
    -p, --port PORT                  Port
    -d, --detached                   Run as a daemon
    -P, --pidfile PIDFILE            Location to write pid file.

Example Handler

require 'ernie'
mod(:calc) do
  fun(:add) do |a, b|
    a + b
  end
end

Example BERT-RPC call for above example

-> {call, calc, add, [1, 2]}
<- {reply, 3}

Using the BERTRPC gem to make calls to Ernie

You can make BERT-RPC calls from Ruby with the BERTRPC gem:

require 'bertrpc'
svc = BERTRPC::Service.new('localhost', 8000)
svc.calc.add.call(1, 2)
# => 3

Contribute

If you'd like to hack on Ernie, start by forking my repo on GitHub:

https://github.com/mojombo/ernie

To get all of the dependencies, install the gem first. The best way to get your changes merged back into core is as follows:

1. Clone down your fork
2. Create a topic branch to contain your change
3. Hack away
4. Add tests and make sure everything still passes by running rake
5. If you are adding new functionality, document it in the README.md
6. Do not change the version number, I will do that on my end
7. If necessary, rebase your commits into logical chunks, without errors
8. Push the branch up to GitHub
9. Send me (mojombo) a pull request for your branch

Copyright

Copyright (c) 2009 Tom Preston-Werner. See LICENSE for details.