使用扩展属性配置执行任务时遇到问题。

问题

Exec-Task的配置依赖于扩展中定义的String-Property。不幸的是，在配置Exec-Task时，尚未设置该属性。这导致TaskCreationException：

Could not create task ':myTask'.
org.gradle.api.internal.tasks.DefaultTaskContainer$TaskCreationException: Could not create task ':myTask'.
    ...
Caused by: org.gradle.api.internal.provider.MissingValueException: Cannot query the value of extension 'myConfig' property 'command' because it has no value available.
    at org.gradle.api.internal.provider.AbstractMinimalProvider.get(AbstractMinimalProvider.java:86)

示例

abstract class ConfigExtension() {
    abstract val command: Property<String>
}

class MyGradlePlugin : Plugin<Project> {
    override fun apply(project: Project) {
        val myConfig = project.extensions.create(
            "myConfig",
            ConfigExtension::class.java
        )

        val myTask = project.tasks.register(
            "myTask",
            Exec::class.java
        ) {
            it.commandLine(myConfig.command.get())
        }
    }
}

问题似乎是myConfig.command.get()，它规避了懒惰的评估。

测试

@Test fun `plugin registers task`() {
    // Create a test project and apply the plugin
    val project = ProjectBuilder.builder().build()
    project.plugins.apply("com.example.plugin")

    // Verify the result
    assertNotNull(project.tasks.findByName("myTask"))
}

提问

是否有一种方法可以像配置gradle任务一样以懒惰的方式配置commandLine-Value？1(https://docs.gradle.org/current/userguide/lazy_configuration.html) 2(https://docs.gradle.org/current/userguide/task_configuration_avoidance.html)