Add sonar coverage reporting to master build

Author: jimschubert

.github/workflows/maven.yml

@@ -12,6 +12,7 @@ on:
 env:
   OSS_USERNAME: ${{ secrets.OSS_USERNAME }}
   OSS_PASSWORD: ${{ secrets.OSS_PASSWORD }}
+  SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
 
 jobs:
   build:
@@ -40,7 +41,11 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-maven-
     - name: Run tests
-      run: ./mvnw -V -B -ntp -ff verify
+      run: ./mvnw -V -B -ntp -ff verify jacoco:report
+    - name: Static Analysis (Sonar)
+      # Sonar will require at least Java 11 soon.
+      if: matrix.java_version == '11'
+      run: ./mvnw -B -ntp -ff jacoco:report-aggregate org.sonarsource.scanner.maven:sonar-maven-plugin:sonar -Dsonar.projectKey=OpenAPITools_openapi-diff -Dsonar.organization=openapitools -Dsonar.host.url=https://sonarcloud.io -Dsonar.branch.name=${GITHUB_REF##*/}
     - name: Release Snapshot
       if: matrix.java_version == '11'
       run: ./mvnw -V -B -ntp -ff deploy

pom.xml

@@ -306,6 +306,11 @@
                     <version>1.6.8</version>
                     <extensions>true</extensions>
                 </plugin>
+                <plugin>
+                    <groupId>org.jacoco</groupId>
+                    <artifactId>jacoco-maven-plugin</artifactId>
+                    <version>0.8.6</version>
+                </plugin>
             </plugins>
         </pluginManagement>
         <plugins>
@@ -347,6 +352,51 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>jacoco-initialize</id>
+                        <goals>
+                            <goal>prepare-agent</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>jacoco-site</id>
+                        <phase>test</phase>
+                        <goals>
+                            <goal>report</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>default-check</id>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <rule>
+                                    <element>PACKAGE</element>
+                                    <limits>
+                                        <limit>
+                                            <counter>LINE</counter>
+                                            <value>COVEREDRATIO</value>
+                                            <minimum>0</minimum>
+                                        </limit>
+                                    </limits>
+                                </rule>
+                            </rules>
+                        </configuration>
+                    </execution>
+                </executions>
+                <configuration>
+                    <excludes>
+                        <!-- Example: -->
+                        <!-- <exclude>**/gradle-wrapper.jar</exclude> -->
+                    </excludes>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>