Add .travis.yml

Author: yrodiere

.travis.yml

@@ -0,0 +1,36 @@
+sudo: required
+dist: trusty
+language: java
+jdk:
+  - oraclejdk8
+addons:
+  apt:
+    packages:
+      - oracle-java8-installer
+env:
+  global:
+    - PROJECTS=$( find . -name pom.xml -print -or -path '*/target/*' -prune | sort | xargs -n 1 dirname )
+cache:
+  directories:
+    - $HOME/.m2
+install:
+  # The Maven install provided by Travis is outdated, use Maven wrapper to get the latest version
+  - mvn -N io.takari:maven:wrapper
+  - ./mvnw -v
+  # first run to download all the Maven dependencies without logging
+  - MVNW=$( readlink -f ./mvnw ) ;
+    for project in $PROJECTS ;
+    do
+        pushd "$project" ;
+        $MVNW -B -q clean dependency:resolve || exit $? ;
+        popd ;
+    done
+script:
+  # Tests are skipped, because for most demos they require a specific environment
+  - MVNW=$( readlink -f ./mvnw ) ;
+    for project in $PROJECTS ;
+    do
+        pushd "$project" ;
+        $MVNW clean package -DskipTests || exit $? ;
+        popd ;
+    done