Enable sonarcloud integration in Travis CI config

Author: jimmysoda

.travis.yml

@@ -1,8 +1,17 @@
 sudo: required
 
-language: minimal
+# Required by SonarCloud - see https://docs.travis-ci.com/user/sonarcloud/
+language: java
+dist: trusty
+
 services: docker
 
+addons:
+  sonarcloud:
+    organization: "simverge"
+    token:
+      secure: $SONAR_TOKEN
+
 env:
   - DISTRO=alpine BUILD_TYPE=Release
   - DISTRO=alpine BUILD_TYPE=Debug
@@ -14,4 +23,5 @@ before_install:
 
 script:
   - chmod u+x $TRAVIS_BUILD_DIR/tests/travis/script.sh
-  - docker run -e TRAVIS_BRANCH -e BUILD_TYPE -e DISTRO -v $TRAVIS_BUILD_DIR:/pdalc -t simverge/pdalc-build-deps:$DISTRO /pdalc/tests/travis/script.sh
+  - docker run -e TRAVIS_BRANCH -e BUILD_TYPE -e DISTRO -v $TRAVIS_BUILD_DIR:/pdalc -t simverge/pdalc-build-deps:$DISTRO /pdalc/tests/travis/script.sh
+  - sonar-scanner

sonar-project.properties

@@ -0,0 +1,14 @@
+# SonarQube/SonarCloud properties for pdal-c
+
+# must be unique in a given SonarQube instance
+sonar.projectKey=Simverge_pdal-c
+# this is the name and version displayed in the SonarQube UI. Was mandatory prior to SonarQube 6.1.
+sonar.projectName=pdal-c
+sonar.projectVersion=1.8
+ 
+# Path is relative to the sonar-project.properties file. Replace "\" by "/" on Windows.
+# This property is optional if sonar.modules is set. 
+sonar.sources=source
+ 
+# Encoding of the source code. Default is default system encoding
+#sonar.sourceEncoding=UTF-8