Simple test for node-docker-delta

test.coffee

Promise = require 'bluebird'
request = require 'request'
progress = require 'request-progress'
DELTA_REQUEST_TIMEOUT = 15 * 60 * 1000
config = { deltaHost: 'https://delta.resinstaging.io'  }
imgSrc = 'resin/armhf-alpine:3.4-20161018'
imgDest = 'registry.resinstaging.io/testaufsdiff/75be750cca0c92d7286a48377af1ae24a589efb3:latest'
dockerDelta = require 'docker-delta'

new Promise (resolve, reject) ->
	progress request.get("#{config.deltaHost}/api/v2/delta?src=#{imgSrc}&dest=#{imgDest}", timeout: DELTA_REQUEST_TIMEOUT)
	.on 'progress', (progress) ->
		console.log("Progress #{progress.percentage}%")
	.on 'end', ->
		console.log("Downloaded")
	.on 'response', (res) ->
		if res.statusCode isnt 200
			reject(new Error("Got #{res.statusCode} when requesting image from delta server."))
		else
			res.pipe(dockerDelta.applyDelta(imgSrc, imgDest))
			.on('id', resolve)
			.on('error', reject)
	.on 'error', reject
.then ->
	console.log('Delta applied')
.catch (err) ->
	console.log('Error: ', err, err.stack)