meka/lib/process.js

Marionette Scaffolding

var fs      = require('fs')
var debug   = require('debug')('meka:process')
var plate   = require('../lib/plate.js')
var cats    = require('concat-stream')
var thru    = require('through')
var async   = require('async')

module.exports = function(opts, done) {
  var hash = opts.hash
  var tags = opts.tags
  var dest = opts.dest
  var tdir = opts.template_dir

  async.each(tags, process, function(err) {
    if(err) debug('error processing ', tags, hash, dest, err)
    else debug('processing complete', err)
    done(err)
  })

  function process(tag, cb) {
    var rs = fs.createReadStream(tdir + tag, { encoding: 'utf8' })
    var ws = fs.createWriteStream(fmt_dest(tag), { encoding: 'utf8' })

    var cs = cats(function(data) {
      var painted = plate(opts.hash, data)
      debug('painted', opts.tag)

      ws.on('end', function() {
        cb(null)
      })

      ws.on('error', function(err) {
        cb(err)
      })

      ws.write(painted)
    })

    rs.on('error', function(err) {
      cb(err)
    })

    rs.pipe(cs)
  }

  function fmt_dest(tag) {
    var file = ('index.js' == tag) ? tag : hash.name + '-' + tag
    return dest + '/' + file
  }

}