哪里都设置[T]存储在sbt 0.11？

问题描述：

如何访问所有sbt的地图设置[T]或其所有设置依赖项所包含的任何容器？哪里都设置[T]存储在sbt 0.11？

我想打印出来，所有的人，并与他们的依赖，以及。输出应如下所示：

setting(ScopedKey(Scope(Select(ThisBuild),Global,Global,Global),managed-directory)) 
    ScopedKey(Scope(Select(ThisBuild),Global,Global,Global),base-directory) 
     ScopedKey(Scope(Select(ThisBuild),Global,Global,Global),this-project) 
...

下面是SBT构建定义我使用的做到这一点。

的this-project关键不是在所有设置中找到。它存储在哪里？

import sbt._ 
import sbt.Logger 
import Keys._ 
import PlayProject._ 

object TheBuild extends Build { 

    lazy val howItWorksProject = Project(
    id = "howItWorks", 
    base = file("./modules/howItWorks") 
) 

    val projDef: ProjectDefinition[_] = howItWorksProject 
    var count = 0 

    def printSettingsDependencies(setting: Setting[_], settings: Seq[Setting[_]], indent: String): Unit = { 
    println("debug printSettingsDependencies start" + (count+=1)) 
    println(setting) 
    println("debug setting =" + setting) 
    println("debug setting.dependencies = " + setting.dependencies) 

    setting.dependencies.foreach { 
     n => 
     println("debug it = " + n) 
     println("debug finding ...") 
     val settingOption = settings.find { 
      it => 
      println("\t"+it.key.key.label + "?=" + n.key.label) 
      it.key.key.label == n.key.label 
     } 
     println("debug found = "+settingOption) 
     println(indent + settingOption) 
     printSettingsDependencies(settingOption.get, settings, indent + indent) 
    } 
    } 
}

的inspect this-project输出：

> inspect this-project 
[info] Setting: sbt.ResolvedProject = Project(id: howItWorks, base: C:\Users\pawel\workspace\kody\ria-template\modules\howItWorks, aggregate: List(), dependencies: List(), delegates: List(), configurations: List(compile, runtime, test, provided, optional)) 
[info] Description: 
[info] Provides the current project for the referencing scope. 
[info] Provided by: 
[info] {file:/C:/Users/pawel/workspace/kody/ria-template/}howItWorks/*:this-project 
[info] Reverse dependencies: 
[info] *:ivy-configurations 
[info] *:base-directory 
[info] *:name 
[info] Delegates: 
[info] *:this-project 
[info] {.}/*:this-project 
[info] */*:this-project

的inspect base-directory输出：

> inspect base-directory 
[info] Setting: java.io.File = C:\Users\pawel\workspace\kody\ria-template\modules\howItWorks 
[info] Description: 
[info] The base directory. Depending on the scope, this is the base directory for the build, project, configuration, or task. 
[info] Provided by: 
[info] {file:/C:/Users/pawel/workspace/kody/ria-template/}howItWorks/*:base-directory 
[info] Dependencies: 
[info] *:this-project 
[info] Reverse dependencies: 
[info] *:ivy-paths 
[info] *:target 
[info] *:unmanaged-base 
[info] *:runner 
[info] *:source-directory 
[info] Delegates: 
[info] *:base-directory 
[info] {.}/*:base-directory 
[info] */*:base-directory 
[info] Related: 
[info] {.}/*:base-directory

show sbt-version

> show sbt-version 
[info] 0.11.3

答

我觉得这是你所需要的：

import sbt._ 
import Keys._ 

object TheBuild extends Build { 

    lazy val allSettings = TaskKey[Seq[sbt.Project.Setting[_]]]("all-settings", "") 

    lazy val printIt = TaskKey[Unit]("print-it", "") 

    lazy val testSettings = Defaults.defaultSettings ++ Seq(
     allSettings <<= (state) map { s => 
      val extracted = Project.extract(s) 
      import extracted._ 
      structure.settings 
     }, 

     printIt <<= (allSettings) map { all => 
      // there are more than one base-directories with different scopes, not all of them have the dependencies 
      val baseDirectories = all.filter(s => s.key.key.label == "base-directory" && !s.dependencies.isEmpty) 
      // pick the first one to demonstrate this works 
      printSettingsDependencies(baseDirectories(0), all, "\t") 
     }) 

    def printSettingsDependencies(setting: Setting[_], settings: Seq[Setting[_]], indent: String): Unit = { 
     println(indent + setting) 

     setting.dependencies.foreach { n => 
      val settingOption = settings.find { _.key.key.label == n.key.label } 
      if (settingOption.isDefined) { 
       printSettingsDependencies(settingOption.get, settings, indent + indent) 
      } 
     } 
    } 

    lazy val howItWorksProject: Project = Project("howItWorks", file(".")) settings (testSettings: _*) 
}

输出：

> print-it 
    setting(ScopedKey(Scope(Select(ProjectRef(file:/Users/balagez/Sites/test/,howItWorks)),Global,Global,Global),base-directory)) at NoPosition 
     setting(ScopedKey(Scope(Select(ProjectRef(file:/Users/balagez/Sites/test/,howItWorks)),Global,Global,Global),this-project)) at NoPosition 
[success] Total time: 0 s, completed Oct 12, 2012 7:50:29 PM

哪里都设置[T]存储在sbt 0.11？

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