Save initialPackages in DB instead of memory

lib/units/device/plugins/cleanup.js

@@ -3,12 +3,16 @@ var Promise = require('bluebird')
 var _ = require('lodash')
 
 var logger = require('../../../util/logger')
+var wire = require('../../../wire')
+var wireutil = require('../../../wire/util')
 
 module.exports = syrup.serial()
   .dependency(require('../support/adb'))
   .dependency(require('../resources/service'))
   .dependency(require('./group'))
-  .define(function(options, adb, service, group) {
+  .dependency(require('../support/router'))
+  .dependency(require('../support/push'))
+  .define(function(options, adb, service, group, router, push) {
     var log = logger.createLogger('device:plugins:cleanup')
     var plugin = Object.create(null)
 
@@ -25,17 +29,34 @@ module.exports = syrup.serial()
         })
     }
 
+    router.on(wire.InitialPackagesReceivedMessage, function(channel, message) {
+      listPackages()
+        .then(function(currentPackages) {
+          var remove = _.difference(currentPackages, message.packageNames)
+          return Promise.map(remove, uninstallPackage)
+        })
+    })
+
+    plugin.removePackages = function() {
+      push.send([
+        wireutil.global
+      , wireutil.envelope(new wire.InitialPackagesGetMessage(
+          options.serial
+        ))
+      ])
+    }
+
     return listPackages()
       .then(function(initialPackages) {
         initialPackages.push(service.pkg)
 
-        plugin.removePackages = function() {
-          return listPackages()
-            .then(function(currentPackages) {
-              var remove = _.difference(currentPackages, initialPackages)
-              return Promise.map(remove, uninstallPackage)
-            })
-        }
+        push.send([
+          wireutil.global
+        , wireutil.envelope(new wire.InitialPackagesSaveMessage(
+            options.serial
+          , initialPackages
+          ))
+        ])
 
         group.on('leave', function() {
           plugin.removePackages()