Gradle：如何用扩展属性初始化SourceTask的属性'source'？

Question

我的插件注册了一个扩展和一些从org.gradle.api.tasks.sourcetask继承的自定义任务。

class MyPlugin implements Plugin<Project> {
    private final Instantiator instantiator
    private final FileResolver fileResolver
    @Inject
    MyPlugin (Instantiator instantiator, FileResolver fileResolver) {
        this.instantiator = instantiator
        this.fileResolver = fileResolver
    }
    void apply(Project project) {
        MyPluginExtension extension = project.extensions.create("myPlugin", MyPluginExtension, project, instantiator, fileResolver)
        project.tasks.create('doSomething', MyCustomTask) {}
    }
}

class MyPluginExtension {
    final MySourceSetContainer source
    MyPluginExtension(Project project, Instantiator instantiator, FileResolver fileResolver) {
        source = instantiator.newInstance(ImplMySourceSetContainer, project, instantiator, fileResolver)
    }
    void source(Closure closure) {
        ConfigureUtil.configure(closure, source)
    }
}

class MyCustomTask extends SourceTask {
    @TaskAction
    void act() {
        // something
    }
}

myPlugin {
    source{
        main {
            something {
                srcDirs "src/main/resources"
            }
        }
    }
}
doSomething {
    source = myPlugin.source.main.something.asFileTree
}

Answer 1

我不确定我是否完全理解您在做什么，但您可能会使用闭包来延迟评估。请参阅Project.Files（Object...）

例如：

doSomething {
    def myClosure = {
        extension.source.findAll().inject(project.files().asFileTree, { result, item -> result + item.html.asFileTree })
    }
    source = files(myClosure)
}