Work on #218, automagic website updates

.travis.yml

@@ -3,12 +3,18 @@ language: java
 jdk:
   - oraclejdk8
 
+env:
+  global:
+  - GH_REF: github.com/iluwatar/java-design-patterns.git
+  - secure: "LxTDuNS/rBWIvKkaEqr79ImZAe48mCdoYCF41coxNXgNoippo4GIBArknqtv+XvdkiuRZ1yGyj6pn8GU33c/yn+krddTUkVCwTbVatbalW5jhQjDbHYym/JcxaK9ZS/3JTeGcWrBgiPqHEEDhCf26vPZsXoMSeVCEORVKTp1BSg="
+
 before_install:
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"
   
 after_success:
   - mvn clean test jacoco:report coveralls:report
+  - bash update-ghpages.sh
 
 # Migration to container-based infrastructure  
 sudo: false

update-ghpages.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Setup Git
+git config user.name "Travis-CI"
+git config user.email "travis@no.reply"
+
+# Clone gh-pages
+git clone -b gh-pages "https://${GH_REF}" ghpagesclone
+cd ghpagesclone
+
+# Init and update submodule to latest
+git submodule update --init --recursive
+git submodule update --remote
+
+# If there is a new version of the master branch
+if git status | grep patterns > /dev/null 2>&1
+then
+  # it should be committed
+  git add .
+  git commit -m ":sparkles: :up: Automagic Update via Travis-CI"
+  git push --quiet "https://${GH_TOKEN}@${GH_REF}" master:gh-pages > /dev/null 2>&1
+fi