Add code coverage reports to Codacy

.travis.yml

@@ -14,3 +14,9 @@ install:
 
 before_install:
     grep -v '^#' assets/src/main/resources/META-INF/services/bisq.asset.Asset | sort --check --dictionary-order --ignore-case
+
+script:
+    - ./gradlew clean check codeCoverageReport
+
+after_success:
+    - bash <(curl -Ls https://coverage.codacy.com/get.sh) report -r build/reports/jacoco/codeCoverageReport/jacoco.xml 

build.gradle

@@ -11,7 +11,16 @@ buildscript {
     }
 }
 
+plugins {
+    id 'jacoco'
+}
+
+repositories {
+    mavenCentral()
+}
+
 configure(rootProject) {
+
     // remove the 'bisq-*' scripts and 'lib' dir generated by the 'installDist' task
     task clean {
         doLast {
@@ -23,6 +32,7 @@ configure(rootProject) {
 configure(subprojects) {
     apply plugin: 'java'
     apply plugin: 'com.google.osdetector'
+    apply plugin: 'jacoco'
 
     sourceCompatibility = 1.10
 
@@ -658,3 +668,19 @@ configure(project(':apitest')) {
     }
 }
 
+task codeCoverageReport(type: JacocoReport) {
+    // Gather execution data from all subprojects
+    getExecutionData().setFrom(fileTree(project.rootDir.absolutePath).include("**/build/jacoco/*.exec"))
+
+    // Add all relevant sourcesets from the subprojects
+    subprojects.each {
+        if (!it.path.contains(":proto")) // but skip proto, as it will never receive any test
+            sourceSets it.sourceSets.main
+    }
+
+    reports {
+        xml.enabled true
+        html.enabled false
+        csv.enabled false
+    }
+}