Question

我的配置非常简单：

  //lazy val bananaRdfProject = RootProject( uri("git://github.com:stample/banana-rdf.git#"+bananaGitBranch) )
  // lazy val bananaRdfProject = RootProject( uri("https://github.com/stample/banana-rdf.git#"+bananaGitBranch) )
  // lazy val bananaRdfProject = ProjectRef( uri("https://github.com/stample/banana-rdf.git#"+bananaGitBranch) ,"banana-rdf")
  lazy val bananaRdfProject = RootProject( file("../banana-rdf") )


  lazy val main = play.Project(appName, appVersion, appDependencies).settings(...)
                     .dependsOn( bananaRdfProject )

我尝试使用上面4个不同的项目声明来表示bananaRdfProject。

由于我可以在本地编辑这个banana-rdf，我希望每次构建我的play项目时都重新编译它，这样我就不必发布banana-rdf ......

但是当我尝试编译我的主要播放项目时，它使用banana-rdf，它不编译banana-rdf，但尝试编译主项目：编译失败，因为类路径中缺少banana-rdf类

sebastien@clemence-XPS-L412Z:rww-play (master *%)$ ./play.old/play
[info] Loading project definition from /home/sebastien/Bureau/rww-play/project
[warn] there were 1 deprecation warning(s); re-run with -deprecation for details
[warn] one warning found
[info] Loading project definition from /home/sebastien/Bureau/banana-rdf/project
[info] Updating {file:/home/sebastien/Bureau/banana-rdf/project/}banana-rdf-build...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Compiling 2 Scala sources to /home/sebastien/Bureau/banana-rdf/project/target/scala-2.10/sbt-0.13/classes...
[warn] there were 11 deprecation warning(s); re-run with -deprecation for details
[warn] there were 2 feature warning(s); re-run with -feature for details
[warn] two warnings found
[info] Set current project to RWWeb (in build file:/home/sebastien/Bureau/rww-play/)
       _
 _ __ | | __ _ _  _
| '_ \| |/ _' | || |
|  __/|_|\____|\__ /
|_|            |__/

play 2.2-TLS built with Scala 2.10.3-RC3 (running Java 1.7.0_45), http://www.playframework.com

> Type "help play" or "license" for more information.
> Type "exit" or use Ctrl+D to leave this console.

[RWWeb] $ compile
[info] Updating {file:/home/sebastien/Bureau/banana-rdf/}banana...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Updating {file:/home/sebastien/Bureau/rww-play/}RWWeb...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Compiling 53 Scala sources and 1 Java source to /home/sebastien/Bureau/rww-play/target/scala-2.10/classes...
[error] /home/sebastien/Bureau/rww-play/app/controllers/CORSProxy.scala:4: object banana is not a member of package org.w3
[error] import org.w3.banana.plantain.Plantain
[error]               ^
[error] /home/sebastien/Bureau/rww-play/app/controllers/CORSProxy.scala:7: not found: type Plantain
[error] object CORSProxy extends org.www.readwriteweb.play.CORSProxy[Plantain](webClient) 
.................

在尝试编译我的主项目之前是不是应该编译banana-rdf？如果没有，取决于外部RootProject有什么意义？

Answer 1

RootProject(file("../banana-rdf"))项目引用仅引用根项目，您真正需要的是对banana-rdf子项目的引用（在rdf子目录中）。

可用的子项目在https://github.com/w3c/banana-rdf/blob/master/project/build.scala中定义。有几个：

[main]> projects
[info] In file:/Users/jacek/sandbox/stackoverflow/19832655/
[info]   * main
[info] In https://github.com/w3c/banana-rdf.git
[info]     banana
[info]     banana-jena
[info]     banana-rdf
[info]     banana-rdf-test-suite
[info]     banana-sesame
[info]     examples
[info]     experimental
[info]     ldp
[info]     patch

要引用banana-rdf，您应该使用以下ProjectRef指向构建配置中的右侧模块（子项目）。注意ProjectRef以及子项目的名称 - banana-rdf。

lazy val bananaRdfProject =
  ProjectRef(uri("https://github.com/w3c/banana-rdf.git"), "banana-rdf")

使用ProjectRef，您应该能够解析banana-rdf子项目中定义的任何类型。

Answer 2

汇总项目和dependsOn之间存在差异。我认为你需要聚合以使所有项目一起构建，dependsOn只确保该项目中的类在类路径上，但如果你最近没有构建它，它当然可能是一个旧的工件。查看sbt文档了解更多信息：http://www.scala-sbt.org/0.12.3/docs/Getting-Started/Multi-Project.html

SBT dependsOn RootProject：不编译依赖项

2 个答案: