Gradle Goodness

This is my final installment, and it's a biggie! This post includes:
* automatically opening test reports on test failure
* grouping tasks for the gradle task list
* renaming all your build.gradle files to match the names of the subprojects
* plugin extensions as the replacement for plugin conventions
* changing the project's artifactId (useful for non-uploadArchive tasks consuming the pom)
* dependency specifications for easy reuse of customizations such as exclusions in multi-project builds

Automatically opening test reports on test failure. As an added bonus, your headless CI server will return false for Desktop.isDesktopSupported(). Note that this requires JDK 1.6:

test {
    successful = true

    afterTest { desc, result ->
        if (result.toString() == 'FAILURE') {
         successful = false
        }
    }
}

import java.awt.Desktop

gradle.taskGraph.afterTask { task, taskState ->
    if (task instanceof Test && !task.successful) {
        if (Desktop.isDesktopSupported()) {
            Desktop.desktop.browse( new File(task.testReportDir, 'index.html').toURI() )
        }
    }
}

Grouping tasks for the gradle task list. Make use of the Task.group property:

task build(dependsOn: [test, assemble]) {
    group = 'build'
}

Renaming all your build.gradle files to match the names of the subprojects. Place this in your settings.gradle:

rootProject.children.each { project ->
    String fileBaseName = project.name.replaceAll("\\p{Upper}") { "-${it.toLowerCase()}" }
    project.buildFileName = "${fileBaseName}.gradle"
}

Plugin extensions as the replacement for plugin conventions:

project.extensions.myextension = [name: "default"]

myextension.name = "some other value"

myextension {
    name = "a different value"
}

Changing the project's artifactId (useful for non-uploadArchive tasks consuming the pom):

project.archivesBaseName = "my-preferred-artifactId"

Dependency specifications for easy reuse of customizations such as exclusions in multi-project builds. Use: dependencies.create(notation, closure).

Enjoy!