Brunch config compiler proposal

config.coffee

# When compiled with `NODE_ENV=production PUSHER_APP_KEY=123abc API_ENDPOINT_HOST=api.app.com brunch build`
# the following is produced and included into build.

config = {api: {}}

config.env = "production"
config.pusher_app_key = "123abc"
config.api.endpoint = "api.app.com"

module.exports = config

config.coffee.eco

# ECO is template processed by node.js first, then is put as app/config.coffee and included into built app.

config = {api: {}}

config.env = "<%= process.env.NODE_ENV or 'development' %>"
config.pusher_app_key = "<%= process.env.PUSHER_APP_KEY %>"
config.api.endpoint = "<%= process.env.API_ENDPOINT_HOST or 'api.app.dev' %>"

module.exports = config