feat(travis): start testing against Node.js 8 and other CI improvements (#1785)

* Test against Node.js 8

Configure Travis CI test against Node.js 8 and allow failures.

Node.js 8 release notes: https://nodejs.org/en/blog/release/v8.0.0/

* Updates to TravisCI

* Refactor picking debug argument for different Node.js versions

.travis.yml

@@ -4,9 +4,11 @@ sudo: false
 node_js:
   - '6.10'
   - '7'
-#matrix:
-#  allow_failures:
-#    - node_js: 7
+  - '8'
+matrix:
+  fast_finish: true
+  allow_failures:
+    - node_js: '8'
 os:
   - linux
   - centos
@@ -27,11 +29,11 @@ addons:
     - gcc-4.8
     - clang
 before_install:
-  - npm i nsp -g
-  - npm i snyk -g
+  - npm install nsp -g
+  - npm install snyk -g
   - npm install protractor
-  - "export DISPLAY=:99.0"
-  - "sh -e /etc/init.d/xvfb start"
+  - 'export DISPLAY=:99.0'
+  - 'sh -e /etc/init.d/xvfb start'
   - 'node_modules/protractor/bin/webdriver-manager update --standalone --firefox'
   - 'node_modules/protractor/bin/webdriver-manager start 2>&1 &'
   - sleep 3

gulpfile.js

@@ -25,7 +25,8 @@ var _ = require('lodash'),
   webdriver_update = require('gulp-protractor').webdriver_update,
   webdriver_standalone = require('gulp-protractor').webdriver_standalone,
   del = require('del'),
-  KarmaServer = require('karma').Server;
+  KarmaServer = require('karma').Server,
+  semver = require('semver');
 
 // Local settings
 var changedTestFiles = [];
@@ -48,18 +49,8 @@ gulp.task('env:prod', function () {
 // Nodemon task
 gulp.task('nodemon', function () {
 
-  var nodeVersions = process.versions;
-  var debugArgument = '--debug';
-  switch (nodeVersions.node.substr(0, 1)) {
-    case '4':
-    case '5':
-    case '6':
-      debugArgument = '--debug';
-      break;
-    case '7':
-      debugArgument = '--inspect';
-      break;
-  }
+  // Node.js v7 and newer use different debug argument
+  var debugArgument = semver.satisfies(process.versions.node, '>=7.0.0') ? '--inspect' : '--debug';
 
   return plugins.nodemon({
     script: 'server.js',

package.json

@@ -15,13 +15,14 @@
     "npm": ">=3.10.8"
   },
   "scripts": {
-    "update": "npm update && npm prune && bower install --allow-root && bower prune --allow-root",
+    "update": "npm update && npm prune && npm run bower",
     "clean": "rm -rf node_modules/ public/lib/",
     "reinstall": "npm cache clean && npm run clean && npm install",
     "start": "gulp",
     "start:prod": "gulp prod",
     "start:debug": "node-debug --web-host 0.0.0.0 server.js & gulp debug",
     "gulp": "gulp",
+    "bower": "bower install --allow-root && bower prune --allow-root",
     "lint": "gulp lint",
     "test": "gulp test",
     "test:server": "gulp test:server",
@@ -29,7 +30,7 @@
     "test:client": "gulp test:client",
     "test:e2e": "gulp test:e2e",
     "test:coverage": "gulp test:coverage",
-    "postinstall": "bower install --allow-root && bower prune --allow-root",
+    "postinstall": "npm run bower",
     "generate-ssl-certs": "scripts/generate-ssl-certs.sh"
   },
   "dependencies": {