如何在插件应用中使用gradle插件配置?
我正在编写一个定制的Gradle插件,它需要在子项目中添加一个特定的依赖项。这个依赖项需要用户提供版本信息,所以我决定创建一个。然而,由于我的属性是在我的插件的如何在插件应用中使用gradle插件配置?,gradle,gradle-plugin,Gradle,Gradle Plugin,我正在编写一个定制的Gradle插件,它需要在子项目中添加一个特定的依赖项。这个依赖项需要用户提供版本信息,所以我决定创建一个。然而,由于我的属性是在我的插件的apply方法中引用的,所以在它们被引用之前,我实际上不能对它们进行变异。我的插件看起来像这样: class MyPluginExtension { abstract String scalaLibraryVersion abstract String macroParadiseVersion } class MyPlugin
apply
方法中引用的,所以在它们被引用之前,我实际上不能对它们进行变异。我的插件看起来像这样:
class MyPluginExtension {
abstract String scalaLibraryVersion
abstract String macroParadiseVersion
}
class MyPlugin implements Plugin<Project> {
void apply(Project project) {
project.extensions.create("myConfig", PluginExtension)
project.configure(project) {
apply plugin: 'scala'
}
String pluginConfiguration = 'myPluginConfiguration'
project.configurations.create(pluginConfiguration)
String scalaLib = project.myConfig.scalaLibraryVersion
String paradise = project.myConfig.macroParadiseVersion
String paradiseDependency = "org.scalamacros:paradise_${scalaLib}:${paradise}"
project.dependencies.add(pluginConfiguration, paradiseDependency)
project.tasks.withType(ScalaCompile) {
scalaCompileOptions.additionalParameters += [
"-Xplugin:" + project.configurations.getByName(pluginConfiguration).asPath,
"-Xplugin-require:macroparadise"
]
}
}
}
project("incorrect-subproject-1") {
apply plugin: "carter.my-plugin"
myConfig.scalaLibraryVersion = "2.11.12" // This is too late. The library version is already set to null
}
project("incorrect-subproject-2") {
myConfig.scalaLibraryVersion = "2.11.12" // This is too early. myConfig references nothing
apply plugin: "carter.my-plugin"
}
有更好的方法吗?这个插件将被其他开发人员使用,所以我非常希望API尽可能好。理想情况下,我想要的是:
project("incorrect-module-1") {
apply plugin: "carter.my-plugin" {
scalaLibraryVersion = "2.11.12"
macroParadiseVersion = "2.1.1"
}
// rest of this subproject's configuration
}
我已尝试在一次生命周期回调期间添加依赖项,如中所述。但是,我发现
beforesolve
回调发生得太早,没有使用我的扩展配置,afterEvaluate
回调发生得太迟,我得到:
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring project ':incorrect-subproject-1'.
> Cannot change dependencies of configuration ':incorrect-subproject-1:myPluginConfiguration' after it has been resolved.
当然,如果在解决之前还不够晚,那么这种事情是不可能的?有没有办法将依赖项解析延迟到项目“评估”之后
顺便说一下,我正在使用Gradle 5.1版,您应该能够通过在project.beforevaluate中引用这些设置来实现这一点。举个例子:
void apply(Project project) {
super.apply(project)
project.extensions.create("myConfig", Configuration)
project.beforeEvaluate {
String scalaLib = project.myConfig.scalaLibraryVersion
String paradise = project.myConfig.macroParadiseVersion
String paradiseDependency = "org.scalamacros:paradise_${scalaLib}:${paradise}"
project.dependencies.add(pluginConfiguration, paradiseDependency)
project.tasks.withType(ScalaCompile) {
scalaCompileOptions.additionalParameters += [
"-Xplugin:" + project.configurations.getByName(pluginConfiguration).asPath,
"-Xplugin-require:macroparadise"
]
}
}
}