NEW: Test webpack build as part of NPM test run.

FIX: Ensure that “npm run build” failures report an error code.

.travis.yml

@@ -63,6 +63,7 @@ script:
  - "if [ \"$BEHAT_TEST\" = \"1\" ] && [ \"$CMS_TEST\" = \"1\" ]; then vendor/bin/behat @cms --config cms/tests/behat/behat.yml; fi"
  - "if [ \"$NPM_TEST\" = \"1\" ]; then npm run test; fi"
  - "if [ \"$NPM_TEST\" = \"1\" ]; then npm run lint; fi"
+ - "if [ \"$NPM_TEST\" = \"1\" ]; then npm run build; fi"
  - "if [ \"$PHPUNIT_COVERAGE_TEST\" = \"1\" ] && [ \"$CMS_TEST\" = \"\" ]; then phpdbg -qrr ./vendor/bin/phpunit --coverage-clover=coverage.xml; fi"
  - "if [ \"$PHPUNIT_COVERAGE_TEST\" = \"1\" ] && [ \"$CMS_TEST\" = \"\" ]; then bash <(curl -s https://codecov.io/bash) -f coverage.xml; fi"
 

package.json

@@ -10,7 +10,7 @@
     "node": "^4.2.0"
   },
   "scripts": {
-    "build": "webpack",
+    "build": "webpack --bail",
     "watch": "webpack --config ./webpack-dev.config.js --watch",
     "css": "WEBPACK_CHILD=css webpack",
     "lock": "npm-shrinkwrap --dev",