Adds SonarCloud (static analysis tool)

.github/workflows/sonarcloud.yml

@@ -0,0 +1,42 @@
+name: SonarCloud
+
+on:
+  push:
+    branches: [ master, development ]
+  pull_request:
+    types: [ opened, synchronize, reopened ]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      # Setup Java
+      - uses: actions/setup-java@v2
+        with:
+          java-version: 16
+          distribution: adopt
+
+      # Checkout project files
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+
+      # Caches
+      - name: 'Cache: Maven'
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-maven-
+      - name: 'Cache: SonarCloud'
+        uses: actions/cache@v2
+        with:
+          path: ~/.sonar/cache
+          key: ${{ runner.os }}-sonar
+
+      - name: Analyze project
+        run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar -Dsonar.projectKey=songoda_SongodaCore
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}

pom.xml

@@ -17,6 +17,9 @@
         <java.release>8</java.release>
 
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+
+        <sonar.organization>songoda</sonar.organization>
+        <sonar.host.url>https://sonarcloud.io</sonar.host.url>
     </properties>
 
     <modules>