Uninstall app first if installation fails due to inconsistent certificates.

lib/roles/device/plugins/install.js

@@ -19,7 +19,9 @@ module.exports = syrup.serial()
     var log = logger.createLogger('device:plugins:install')
 
     router.on(wire.InstallMessage, function(channel, message) {
-      log.info('Installing "%s"', message.href)
+      var pkg = message.manifest.package
+
+      log.info('Installing package "%s" from "%s"', pkg, message.href)
 
       var reply = wireutil.reply(options.serial)
 
@@ -94,6 +96,21 @@ module.exports = syrup.serial()
           sendProgress('installing_app', guesstimate)
           return promiseutil.periodicNotify(
               adb.installRemote(options.serial, apk)
+                .catch(function(err) {
+                  switch (err.code) {
+                  case 'INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES':
+                    log.info(
+                      'Uninstalling "%s" first due to inconsistent certificates'
+                    , pkg
+                    )
+                    return adb.uninstall(options.serial, pkg)
+                      .then(function() {
+                        return adb.installRemote(options.serial, apk)
+                      })
+                  default:
+                    throw err
+                  }
+                })
             , 250
             )
             .progressed(function() {
@@ -103,7 +120,7 @@ module.exports = syrup.serial()
               )
               sendProgress('installing_app', guesstimate)
             })
-            .timeout(30000)
+            .timeout(35000)
         })
         .then(function() {
           if (message.launch) {
@@ -113,7 +130,7 @@ module.exports = syrup.serial()
                 action: 'android.intent.action.MAIN'
               , component: util.format(
                   '%s/%s'
-                , manifest.package
+                , pkg
                 , manifest.application.launcherActivities[0].name
                 )
               , category: ['android.intent.category.LAUNCHER']
@@ -139,7 +156,7 @@ module.exports = syrup.serial()
           ])
         })
         .catch(function(err) {
-          log.error('Installation failed', err.stack)
+          log.error('Installation of package "%s" failed', pkg, err.stack)
           push.send([
             channel
           , reply.fail('fail')