Rename "roles" to "units". Put units in their own folders.

lib/units/device/plugins/connect.js

@@ -0,0 +1,111 @@
+var util = require('util')
+
+var syrup = require('syrup')
+var Promise = require('bluebird')
+
+var logger = require('../../../util/logger')
+var wire = require('../../../wire')
+var wireutil = require('../../../wire/util')
+var lifecycle = require('../../../util/lifecycle')
+
+module.exports = syrup.serial()
+  .dependency(require('../support/adb'))
+  .dependency(require('../support/router'))
+  .dependency(require('../support/push'))
+  .dependency(require('./group'))
+  .define(function(options, adb, router, push, group) {
+    var log = logger.createLogger('device:plugins:connect')
+      , plugin = Object.create(null)
+      , activeServer = null
+
+    plugin.port = options.ports.pop()
+    plugin.url = util.format('%s:%s', options.publicIp, plugin.port)
+
+    plugin.start = function() {
+      return new Promise(function(resolve, reject) {
+        if (plugin.isRunning()) {
+          return resolve(plugin.url)
+        }
+
+        var server = adb.createTcpUsbBridge(options.serial)
+
+        server.on('listening', function() {
+          resolve(plugin.url)
+        })
+
+        server.on('connection', function(conn) {
+          log.info('New remote ADB connection from %s', conn.remoteAddress)
+          conn.on('userActivity', function() {
+            group.keepalive()
+          })
+        })
+
+        server.on('error', reject)
+
+        log.info(util.format('Listening on port %d', plugin.port))
+        server.listen(plugin.port)
+
+        activeServer = server
+        lifecycle.share('Remote ADB', activeServer)
+      })
+    }
+
+    plugin.stop = Promise.method(function() {
+      if (plugin.isRunning()) {
+        activeServer.close()
+        activeServer.end()
+      }
+    })
+
+    plugin.end = Promise.method(function() {
+      if (plugin.isRunning()) {
+        activeServer.end()
+      }
+    })
+
+    plugin.isRunning = function() {
+      return !!activeServer
+    }
+
+    lifecycle.observe(plugin.stop)
+    group.on('leave', plugin.end)
+
+    router
+      .on(wire.ConnectStartMessage, function(channel) {
+        var reply = wireutil.reply(options.serial)
+        plugin.start()
+          .then(function(url) {
+            push.send([
+              channel
+            , reply.okay(url)
+            ])
+          })
+          .catch(function(err) {
+            log.error('Unable to start remote connect service', err.stack)
+            push.send([
+              channel
+            , reply.fail(err.message)
+            ])
+          })
+      })
+      .on(wire.ConnectStopMessage, function(channel) {
+        var reply = wireutil.reply(options.serial)
+        plugin.end()
+          .then(function() {
+            push.send([
+              channel
+            , reply.okay()
+            ])
+          })
+          .catch(function(err) {
+            log.error('Failed to stop connect service', err.stack)
+            push.send([
+              channel
+            , reply.fail(err.message)
+            ])
+          })
+      })
+
+    return plugin.start()
+      .return(plugin)
+  })