Overload-able functions

[gerhard]

If I need to tweak the setup function from the nodejs strategy, I shouldn't need to create a custom strategy. Overloading specific strategy functions in the config file would make the entire experience a lot neater.

[gerhard]

This only needs documenting, the new modular approach makes it a cinch.

[gerhard]

Take the following .deliver/config taken from a production node.js app (uses deliver v0.6.0-pre):

#!/usr/bin/env bash

SERVER="nodejs-1"
APP="analytics_api"
PORT="5010"
STRATEGY="nodejs"
AUTHORIZED_REMOTE_HOSTS+=("bitbucket.org")

npm_install() {
  status "Setting up nvm & npm modules"
  __remote "
    cd $DELIVER_TO
    bin/setup
  "
}

I've replaced the default npm_install() function by adding nvm logic and a few extra steps, all encapsulated in that app's bin/setup. It's that simple!