Get rid of cache module

lib/actions/os.coffee

@@ -7,7 +7,6 @@ resin = require('resin-sdk')
 log = require('../log/log')
 permissions = require('../permissions/permissions')
 errors = require('../errors/errors')
-cache = require('../cache/cache')
 
 exports.download = (params, options) ->
 
@@ -20,10 +19,7 @@ exports.download = (params, options) ->
 		wifiKey: options.key
 		appId: params.id
 
-	# TODO: Change cache.generateCacheName to accept a ConnectionParams instance
-	# to avoid the complication of having to omit it from the object and pass
-	# as another parameter
-	fileName = cache.generateCacheName(params.id, _.omit(connectionParams, 'appId'))
+	fileName = resin.models.os.generateCacheName(connectionParams)
 
 	outputFile = options.output or path.join(resin.settings.get('directories.os'), fileName)
 
@@ -36,6 +32,7 @@ exports.download = (params, options) ->
 				return callback(error)
 
 		(callback) ->
+			log.info("Destination file: #{outputFile}")
 
 			bar = null
 			received = 0

lib/cache/cache.coffee

@@ -1,7 +0,0 @@
-exports.generateCacheName = (id, connectionParams) ->
-	result = "#{id}-#{connectionParams.network}"
-
-	if connectionParams.wifiSsid?
-		result += "-#{connectionParams.wifiSsid}"
-
-	return "#{result}-#{Date.now()}"

lib/cache/cache.spec.coffee

@@ -1,32 +0,0 @@
-_ = require('lodash')
-sinon = require('sinon')
-chai = require('chai')
-chai.use(require('chai-string'))
-expect = chai.expect
-cache = require('./cache')
-
-describe 'Cache:', ->
-
-	describe '#generateCacheName()', ->
-
-		describe 'given network is ethernet', ->
-
-			it 'should construct a correct name', ->
-				application =
-					id: 91
-					params:
-						network: 'ethernet'
-
-				result = cache.generateCacheName(application.id, application.params)
-				expect(result).to.match(new RegExp("#{application.id}-ethernet-\\d\+\$"))
-
-		describe 'given network is wifi', ->
-			it 'should construct a correct name', ->
-				application =
-					id: 91
-					params:
-						network: 'wifi'
-						wifiSsid: 'MYSSID'
-
-				result = cache.generateCacheName(application.id, application.params)
-				expect(result).to.match(new RegExp("#{application.id}-wifi-#{application.params.wifiSsid}-\\d\+\$"))