How to redevelop or extend jacoco in android project to get increment code coverage

morphin3 · September 27, 2018, 1:09pm

I want to modify some parts of Jacoco, it seems that Jacoco plugin was embedded in gradle
What should I do to use my own Jacoco rather than the nested one in android.

Is there any way to get increment code coverage (which meas only get the code coverage about diff code)

Android Gradle Plugin has a nested Jacoco，you can see it below:

https://android.googlesource.com/platform/tools/base/+/studio-master-dev/build-system/gradle-core/src/main/java/com/android/build/gradle

https://android.googlesource.com/platform/tools/base/+/studio-master-dev/build-system/gradle-core/src/main/java/com/android/build/gradle/internal/coverage/JacocoReportTask.java

https://android.googlesource.com/platform/tools/base/+/studio-master-dev/build-system/gradle-core/src/main/java/com/android/build/gradle/internal/TaskManager.java

My English is poor ,sorry~

tranpeter · September 27, 2018, 10:19pm

What’s the version of Jacoco? Maybe you can use your specific version. The customizing dependency resolution link may help.

morphin3 · September 28, 2018, 5:57am

I mean there is hard code in gradle plugin declare Jacoco dependency.
So should I modify gradle plugin to use my own version of Jacoco?

For example:

github.com

gradle/gradle/blob/92b8373769fbfb1d55f19fd969d6bd81bfb9b7d1/subprojects/jacoco/src/main/java/org/gradle/testing/jacoco/plugins/JacocoPlugin.java

/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.testing.jacoco.plugins;

import org.apache.commons.lang.StringUtils;
import org.gradle.api.Action;
import org.gradle.api.Incubating;

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How to redevelop or extend jacoco in android project to get increment code coverage

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