enable SonarQube checker

fixes #2090

Author: Vladimir Kotal

.travis.yml

@@ -1,7 +1,8 @@
 language: java
 cache:
   directories:
-  - $HOME/.m2
+  - '$HOME/.m2'
+  - '$HOME/.sonar/cache'
 matrix:
   include:
     - os: linux
@@ -27,6 +28,10 @@ addons:
       branch_pattern: "coverity_scan"
       #    build_command_prepend: "mvn clean"
       build_command: "mvn -DskipTests=true -Dmaven.javadoc.skip=false -B -V compile"
+  sonarcloud:
+    organization: "opengrok"
+    token:
+      secure: "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"
 deploy:
   # Pre-release
   - provider: releases

README.md

@@ -3,9 +3,10 @@ Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
 
 
 # OpenGrok - a wicked fast source browser
-[![Travis Status](https://travis-ci.org/oracle/opengrok.svg?branch=master)](https://travis-ci.org/oracle/opengrok)
+[![Travis status](https://travis-ci.org/oracle/opengrok.svg?branch=master)](https://travis-ci.org/oracle/opengrok)
 [![wercker status](https://app.wercker.com/status/e2a879f4677e679c0bbf8fa82bcc0dba/s/master "wercker status")](https://app.wercker.com/project/byKey/e2a879f4677e679c0bbf8fa82bcc0dba)
-[![Coverage Status](https://coveralls.io/repos/oracle/opengrok/badge.svg?branch=master)](https://coveralls.io/r/oracle/opengrok?branch=master)
+[![Coverage status](https://coveralls.io/repos/oracle/opengrok/badge.svg?branch=master)](https://coveralls.io/r/oracle/opengrok?branch=master)
+[![SonarQube status](https://sonarcloud.io/api/project_badges/measure?project=org.opengrok%3Aopengrok-top&metric=alert_status)](https://sonarcloud.io/api/project_badges/measure?project=org.opengrok%3Aopengrok-top&metric=alert_status)
 
 1. [Introduction](#1-introduction)
 2. [OpenGrok setup](#2-opengrok-install-and-setup)

dev/main

@@ -1,13 +1,14 @@
 #!/bin/bash
 
 #
-# Do not run coverage for forks as most people do not have Coveralls enabled
+# Do not run coverage for forks as most people do not have extra tools enabled
 # for their fork.
 #
 extra_args=""
 if [ "x$TRAVIS_REPO_SLUG" == "xoracle/opengrok" ]; then
 	echo "Enabling Jacoco/Coveralls"
 	extra_args="jacoco:report org.eluder.coveralls:coveralls-maven-plugin:report"
+	extra_args="$extra_args sonar:sonar"
 fi
 
 mvn -B -V verify $extra_args

sonar-project.properties

@@ -1,31 +1,7 @@
-# Required metadata
-sonar.projectKey=OpenGrok
+sonar.projectKey=opengrok
 sonar.projectName=OpenGrok analyzed with the SonarQube Runner
 sonar.projectVersion=1.1
 
-# Comma-separated paths to directories with sources (required)
-sonar.sources=src,test
-#,generatedsrc
-sonar.java.binaries=build,dist
-
-sonar.java.libraries=dist/*.jar,dist/lib/*.jar
-
-sonar.scm.provider=git
-
-# Language
-sonar.language=java
-
-# PMD
+sonar.sources=.
 sonar.java.source=1.8
-
-# findbugs
-sonar.findbugs.excludesFilters=tools/findbugs_filter.xml
-
-# code coverage
-sonar.junit.reportsPath=build/test/results/
-sonar.jacoco.reportPath=jacoco.exec
-sonar.java.coveragePlugin=jacoco
-sonar.jacoco.reportMissing.force.zero=true
-
-# Encoding of the source files
 sonar.sourceEncoding=UTF-8