Restrict sonarqube analysis to master branch

.travis.yml

@@ -3,17 +3,15 @@ jdk:
   - oraclejdk8
   - oraclejdk7
   - openjdk7
-before_script:
-  - sudo keytool -import -alias sonar -keystore $JAVA_HOME/jre/lib/security/cacerts -file sonar_cert.pem -storepass changeit -noprompt
 script:
-  - ./gradlew check sonarqube
+  - ./gradlew check
 deploy:
   provider: releases
   api_key:
     secure: DpTp3xxZrKP21I13G8dYY5EBra5tcf9TsF1y9oLRdOSoVvUe0XaOQ+9WPG2RgnuH1DPVj1n2Rr6emAZ84lSzz4H7T8gPYP4pLjmJBGyriGC7N3MTG2FCBn5l6DgTKNLxtfpek/b7nClif6vVTEse/T8/9an/Yszp9bbIZNNwStE=
   file:
-    - build/distributions/ical4j-$RELEASE_VERSION.zip
-    - build/distributions/ical4j-$RELEASE_VERSION.tgz
+    - build/distributions/ical4j-$TRAVIS_TAG.zip
+    - build/distributions/ical4j-$TRAVIS_TAG.tgz
   skip_cleanup: true
   on:
     tags: true
@@ -22,3 +20,7 @@ before_deploy: "./gradlew assembleMainDist"
 sudo: true
 addons:
   hostname: travis-ci
+after_script:
+  - sudo keytool -import -alias sonar -keystore $JAVA_HOME/jre/lib/security/cacerts -file sonar_cert.pem -storepass changeit -noprompt
+  # Check if commit is not a pull request, if git repo is official, and if branch is master. If checks pass, run Sonar reports
+  - "[[ $TRAVIS_PULL_REQUEST == false ]] && [[ $TRAVIS_REPO_SLUG == ical4j/ical4j ]] && [[ $TRAVIS_BRANCH == master ]] && ./gradlew sonarqube"