Gradle plugin embedded in build.gradle

build.gradle

apply plugin: EmbeddedPlugin

embeddedPluginConfig {
    name = "Someone"
}

class EmbeddedPlugin implements Plugin<Project> {
    void apply(Project project) {
        project.extensions.create('embeddedPluginConfig', EmbeddedPluginExtension)
        project.afterEvaluate {
            project.task("printName") {
                println "Hello, " + project.embeddedPluginConfig.name + "!"
            }
        }
    }
}

class EmbeddedPluginExtension {
    String name
}

$ gradle printName

> Configure project :
Hello, Someone!


BUILD SUCCESSFUL in 0s