Add SonarCloud integration, update gradle wrapper

.gitignore

@@ -1,7 +1,11 @@
 /.gradle/
+/.idea/
+/.nb-gradle/
 /build/
 /dist/
 /store/
 /optimizations/
 /nbproject/private/
 /src/main/generatedJava/
+OwnLang.iml
+.nb-gradle-properties

.travis.yml

@@ -1,23 +1,23 @@
 language: java
+sudo: false
+install: true
 
 jdk:
   - oraclejdk8
 
+addons:
+  sonarcloud:
+    organization: "annimon-github"
+
 cache:
   directories:
     - $HOME/.m2
     - $HOME/.gradle
-
+    - $HOME/.sonar/cache
-sudo: false
 
 before_install:
  - chmod +x gradlew
  
 after_success:
- - ./gradlew proguard
+ - ./gradlew proguard sonarqube
  - test $TRAVIS_PULL_REQUEST == "false" && test $TRAVIS_BRANCH == "latest" && curl -F "file=@store/OwnLang.jar" http://projects.annimon.com/samples/php/travis/upload.php?mode=ownlang
-
-addons:
-  apt:
-    packages:
-      - oracle-java8-installer

build.gradle

@@ -10,6 +10,7 @@ buildscript {
 plugins {
     id "java"
     id "com.github.johnrengelman.shadow" version "2.0.2"
+    id "org.sonarqube" version "2.6.2"
 }
 
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
@@ -123,3 +124,11 @@ dependencies {
     testImplementation 'org.openjdk.jmh:jmh-core:1.13'
     testImplementation 'org.openjdk.jmh:jmh-generator-annprocess:1.13'
 }
+
+sonarqube {
+    properties {
+        property "sonar.projectName", "Own-Programming-Language-Tutorial"
+        property "sonar.projectKey", "aNNiMON_Own-Programming-Language-Tutorial"
+        property "sonar.host.url", "https://sonarcloud.io"
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 #Fri Mar 09 10:54:07 EET 2018
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists

proguard.properties

@@ -8,6 +8,7 @@
 -dontwarn okio.**
 -dontwarn okhttp3.**
 -dontwarn org.fusesource.jansi.internal.**
+-dontwarn javafx.**
 
 -keepclasseswithmembers public class * {
     public static void main(java.lang.String[]);