Add jacoco coverage report.

.travis.yml

@@ -9,3 +9,4 @@ script: 'travis_retry ./gradlew build --parallel'
 
 after_success:
 - scripts/travis-sonatype-publish.sh
+- ./gradlew jacocoTestReport coveralls

build.gradle

@@ -10,6 +10,7 @@ buildscript {
     dependencies {
         classpath "org.robolectric:robolectric-gradle-plugin:${ROBOLECTRIC_GRADLE_VERSION}"
         classpath "com.android.tools.build:gradle:${ANDROID_GRADLE_VERSION}"
+        classpath "org.kt3k.gradle.plugin:coveralls-gradle-plugin:${COVERALLS_GRADLE_VERSION}"
     }
 }
 

gradle.properties

@@ -21,6 +21,7 @@ OK_HTTP_VERSION=2.0.0
 ANDROID_GRADLE_VERSION=0.13.3
 
 ROBOLECTRIC_GRADLE_VERSION=0.12.0
+COVERALLS_GRADLE_VERSION=2.0.1
 JUNIT_VERSION=4.11
 MOCKITO_VERSION=1.9.5
 ROBOLECTRIC_VERSION=2.4-SNAPSHOT

library/build.gradle

@@ -3,10 +3,18 @@ apply plugin: 'robolectric'
 apply plugin: 'maven'
 apply plugin: 'findbugs'
 apply plugin: 'pmd'
+apply plugin: 'jacoco'
+apply plugin: 'com.github.kt3k.coveralls'
 
 findbugs {
     toolVersion = "2.0.3"
 }
+jacoco {
+    toolVersion = "0.7.1.201405082137"
+}
+coveralls {
+    jacocoReportPath = 'build/reports/jacoco/jacocoTestReport/jacocoTestReport.xml'
+}
 
 dependencies {
     compile project(':third_party:gif_decoder')
@@ -36,6 +44,12 @@ android {
         versionCode = VERSION_CODE
         versionName = VERSION_NAME
     }
+
+    buildTypes {
+        debug {
+            testCoverageEnabled = true
+        }
+    }
 }
 
 afterEvaluate {
@@ -86,4 +100,29 @@ afterEvaluate {
     }
 
     check.dependsOn('pmd')
+
+    task jacocoTestReport(type:JacocoReport, dependsOn: testDebug) {
+        def coverageSourceDirs = ['src/main/java']
+        group = "Reporting"
+
+        description = "Generate Jacoco coverage reports"
+
+        classDirectories = fileTree(
+                dir: 'build/intermediates/classes/debug',
+                excludes: ['**/R.class',
+                           '**/R$*.class',
+                           '**/*$ViewInjector*.*',
+                           '**/BuildConfig.*',
+                           '**/Manifest*.*']
+        )
+
+        additionalSourceDirs = files(coverageSourceDirs)
+        sourceDirectories = files(coverageSourceDirs)
+        executionData = files('build/jacoco/testDebug.exec')
+
+        reports {
+            xml.enabled = true
+            html.enabled = true
+        }
+    }
 }