Added coffeescript support to couchapp

[josephg]

If you don't have coffeescript installed, it works like normal. If you have coffeescript installed + visible to require, you can:

$ couchapp push app.coffee http://localhost:5984/ctest

[shimaore]

Couple notes on 'coffeescript in node.couchapp'. The first one pertains to this pull request, the second item is more generic.

• The simplest approach is a coffeescript app.coffee; the _design document's language is still javascript.

  This can be achieved from within a coffeescript installer (which mimics bin.js):

  #!/usr/bin/env coffee
  couchapp = require 'couchapp'
  push_script = (uri, script,cb) ->
    couchapp.createApp require("./#{script}"), uri, (app)-> app.push(cb)
  push_script 'http://127.0.0.1:5984/dbname', 'app'

  My understanding is that this pull request does this for the command line couchapp.

  In both cases I believe loadFiles still needs to be told when to expect coffeescript files with a proper options.operators. There should be some sort of helper for that: ddoc.templates = loadFiles(dir, couchapp.coffeescript_helper).

• There is now native coffeescript support in CouchDB (since 1.2.0). In this case the _design document's language is coffeescript. I'm not sure how to do this for a main app.coffee except:

  • by enclosing the coffescript code in ''' (to make sure it does not get compiled); should work but prevents to use e.g. ''' in coffeescript code;
  • by using things like ddoc.views = loadFiles('views'). This defeats the goal of node.couchapp to have things gathered in a single file.

  It looks like this would be a target for a coffeescript-specific tool.

[elistevens]

Any movement on this? I'd love to have coffee support.

[clehner]

:+1: yes please :icecream: