Deploy DocPad to Gandi.net Simple Hosting - node.js

Question

I'm trying to deploy my first DocPad website to the Gandi.net hosting provider, with this service :
https://www.gandi.net/hebergement/simple?language=nodejs&grid=A
My code is here :
https://github.com/nylnook/nylnook-website
It's running fine locally on my computer.
Technically it seem to be a 'vhost', and I'm supposed to write a "server.js" file to deploy DocPad in production to the gandi server, after I used :
git push gandi master
('gandi' being my git remote repo at their server)
and also used a custom command (XXX instead of my login) :
ssh XXXXX#git.XXX.gpaas.net 'deploy default.git'
They have a guide for their Node.js instance :
http://wiki.gandi.net/en/simple/instance/nodejs?s[]=node
and a guide for git usage on their servers :
http://wiki.gandi.net/en/simple/git
that suggest to use this code :
https://github.com/visionmedia/express/blob/master/examples/vhost/index.js
but I a newbie to node.js, learning with DocPad, so I can't figure how to do that !
Last link, the DocPad guide for deployment I followed so far :
http://docpad.org/docs/deploy
Thanks for you help !
Edit : another lead maybe :http://docpad.org/docs/api#using-with-express

Answer 1

Answering myself for documentation :
you need to modify 3 files
in server.js (thanks plflannery : https://github.com/bevry/docpad/issues/819) :
var spawn = require('child_process').spawn
var args = ['server'];
spawn('node_modules/.bin/docpad', args, {stdio:'inherit'}).on('close', function(err) {
if (err)
console.log("docpad failed");
else
console.log("docpad running");
});
in docpad.coffee, put :
port: 8080
in docpadConfig fonction, to change default port (9778) to
8080, as required by Gandi, explanations here :
https://github.com/bobobo1618/docpad-docum...
and in package.json put
"main": "server.js"
instead of
"main": "node_modules/docpad/bin/docpad-server"
So to launch docpad and install dependencies when deployment via Git.
Example of a working code :
https://github.com/nylnook/nylnook-website
Good luck in your projects !