@lyra/export/src/filterSystemDocuments.js

Export Lyra documents and assets

const miss = require('mississippi')
const debug = require('./debug')

const isSystemDocument = doc => doc && doc._id && doc._id.indexOf('_.') === 0

module.exports = miss.through.obj((doc, enc, callback) => {
  if (isSystemDocument(doc)) {
    debug('%s is a system document, skipping', doc && doc._id)
    return callback()
  }

  return callback(null, doc)
})