try hup, test webpacker first

Author: rmosolgo

.travis.yml

@@ -10,14 +10,16 @@ rvm:
   - jruby-9.0.1.0
 
 gemfile:
+  # These have webpacker:
+  - gemfiles/rails_4.2_sprockets_4.gemfile
+  - gemfiles/rails_5_no_sprockets_webpacker.gemfile
+  # These don't have webpacker:
   - gemfiles/rails_3.2.gemfile
   - gemfiles/rails_4.0.5.gemfile
   - gemfiles/rails_4.0_with_therubyracer.gemfile
   - gemfiles/rails_4.1.gemfile
   - gemfiles/rails_4.2_sprockets_2.gemfile
   - gemfiles/rails_4.2_sprockets_3.gemfile
-  - gemfiles/rails_4.2_sprockets_4.gemfile
-  - gemfiles/rails_5_no_sprockets_webpacker.gemfile
   - gemfiles/rails_5_no_sprockets.gemfile
   - gemfiles/rails_5_sprockets_4.gemfile
 

test/support/webpacker_helpers.rb

@@ -89,8 +89,11 @@ def with_dev_server
   ensure
     # Kill the server process
     puts "Killing webpack dev server"
-    puts Process.kill("KILL", webpack_dev_server)
+    puts Process.kill("HUP", webpack_dev_server)
     Process.wait
+    check_cmd = "lsof -i :8080 -S"
+    puts check_cmd
+    puts `#{check_cmd}`
     # Remove the dev-server packs:
     WebpackerHelpers.clear_webpacker_packs
     puts "Killed."