英文:
How can I use sbt commands like clean and compile in my custom sbtplugin
问题
以下是翻译好的部分：
我有以下的最小自定义sbt插件，我想要在其中实现（覆盖）标准的`clean`命令以执行与`myTask`相同的操作。当我在客户项目中启用此插件时，`myTask`命令按预期工作。我还希望`clean`调用相同的任务，但没有输出：我无法找到正确的语法来调用它，所以感谢任何指点。
英文:
I have the following, minimal, custom sbt plugin, where I'd like to implement (override) the standard clean command to do the same action as myTask.
package nigeleke.sbtimport sbt.*import Keys.*import scala.sys.process.*object MyPlugin extends AutoPlugin {object autoImport {val myTask = taskKey[Unit]("Do something.")}import autoImport._override def requires = emptyoverride def trigger = noTriggeroverride lazy val projectSettings = Seq(myTask := {println(s"project: ${thisProject.value.id} plugins: ${thisProject.value.plugins}")},clean := clean.dependsOn(myTask).value)}
When I enable this plugin a client project, the myTask command works as expected. I would also like clean to invoke the same task, but no output is forthcoming:
> sbt[info] welcome to sbt 1.8.2 (Eclipse Adoptium Java 17.0.6)[info] loading global plugins from ... \.sbt.0\plugins[info] loading settings for project sbt-example-client-build from plugins.sbt ...[info] loading project definition from ... \sbt-example-client\project[info] loading settings for project root from build.sbt,version.sbt ...[info] set current project to sbt-example-client (in build file:/ ... /sbt-example-client/)[info] sbt server started at local:sbt-server-c377c6b81cca5b432adb[info] started sbt serversbt:sbt-example-client> myTaskproject: client plugins: nigeleke.sbt.MyPlugin[success] Total time: 0 s, completed 13 Apr 2023, 5:05:18 pmsbt:sbt-example-client> clean[success] Total time: 0 s, completed 13 Apr 2023, 5:05:21 pmsbt:sbt-example-client>
I'm failing to find the correct syntax to invoke it, so any pointers are appreciated.
答案1
得分: 1
The thing is that clean is defined in a default built-in sbt plugin JvmPlugin.
你要翻译的代码部分已经翻译完成，如有需要，请提供更多内容。
英文:
The thing is that clean is defined in a default built-in sbt plugin JvmPlugin
https://github.com/sbt/sbt/blob/v1.8.2/main/src/main/scala/sbt/plugins/JvmPlugin.scala#L44-L46
object JvmPlugin extends AutoPlugin {...override lazy val projectSettings: Seq[Setting[_]] =... ++Defaults.baseTasks ++ // (1)Defaults.compileBase ++ // (2)Defaults.defaultConfigs // (3)}
https://github.com/sbt/sbt/blob/v1.8.2/main/src/main/scala/sbt/Defaults.scala
object Defaults extends BuildCommon {lazy val baseTasks: Seq[Setting[_]] = projectTasks ++ ...lazy val projectTasks: Seq[Setting[_]] = Seq(...clean := // (1)Def.taskDyn(Clean.task(resolvedScoped.value.scope, full = true)).value,...)def compileBase = ... ++ Seq(...clean := clean.dependsOn(cleanIvy).value, // (2)...)lazy val defaultConfigs: Seq[Setting[_]] =inConfig(Compile)(compileSettings) ++inConfig(Test)(testSettings) ++ ...lazy val compileSettings: Seq[Setting[_]] = configSettings + ...lazy val testSettings: Seq[Setting[_]] = configSettings ++ ...lazy val configSettings: Seq[Setting[_]] = ... ++ configTasks ++ ...lazy val configTasks: Seq[Setting[_]] = ... ++ Seq(...clean := (compileOutputs / clean).value, // (3)...)}
You can't disable JvmPlugin because in such case sbt can't build a project.
So in order to override clean you should make your plugin depend on JvmPlugin (otherwise JvmPlugin definition of clean overrides yours)
object MyPlugin extends AutoPlugin {...override def requires = JvmPlugin
Then any of the following options works:
clean := clean.dependsOn(myTask).value
clean := {myTask.valueclean.value}
clean := Def.sequential(myTask, clean).value
https://stackoverflow.com/questions/25247662/how-can-a-default-task-be-overridden-from-an-autoplugin
https://www.scala-sbt.org/1.x/docs/Custom-Settings.html#Implementing+a+task
https://stackoverflow.com/questions/41183255/sbt-task-dependson
https://stackoverflow.com/questions/44657163/sbt-dependson-usage-migration-from-0-12-to-0-13
https://stackoverflow.com/questions/54393160/per-project-tasks-in-sbt
https://stackoverflow.com/questions/57806115/sbt-run-command-for-multiple-projects
https://stackoverflow.com/questions/34841410/sequencing-and-overriding-tasks-in-sbt
https://stackoverflow.com/questions/24020437/how-to-exclude-files-in-a-custom-clean-task
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