SBT 0.13.1 离线

Question

我正在尝试了解 SBT 0.13.1 的离线使用。我的目标是将任何必要的东西带到 U 盘上的离线环境中。我认为如果复制了 ivy 缓存，那么 SBT 可以从中提取所需的一切，但似乎并非如此。

例如...

为了确定，我将首先删除 .ivy2 文件夹。现在，在线时我使用以下build.sbt 和project/plugins.sbt 文件来创建我的eclipse 项目。从 SBT 0.13.1

build.sbt：

name := "TestProject"

version := "0.0.1"

scalaVersion := "2.10.3"

libraryDependencies ++= Seq(
    "org.apache.commons" % "commons-math3" % "3.2",
    "ch.qos.logback" % "logback-classic" % "1.1.1"
)

project/plugins.sbt：

addSbtPlugin("com.typesafe.sbteclipse" % "sbteclipse-plugin" % "2.4.0")

Sill 在我离线的同一台计算机上，现在sbt clean eclipse 给出了许多未解决的依赖错误。例如

[warn] Host repo1.maven.org not found. url=http://repo1.maven.org/maven2/org/scala-lang/scala-library/2.10.3/scala-library-2.10.3.pom
[info] You probably access the destination server through a proxy server that is not well configured.
[warn]  module not found: org.scala-lang#scala-library;2.10.3
[warn] ==== local: tried
[warn]   /home/user/.ivy2/local/org.scala-lang/scala-library/2.10.3/ivys/ivy.xml
[warn] ==== public: tried
[warn]   http://repo1.maven.org/maven2/org/scala-lang/scala-library/2.10.3/scala-library-2.10.3.pom
[info] Resolving ch.qos.logback#logback-classic;1.1.1 ...
[warn] Host repo1.maven.org not found. url=http://repo1.maven.org/maven2/ch/qos/logback/logback-classic/1.1.1/logback-classic-1.1.1.pom
[info] You probably access the destination server through a proxy server that is not well configured.
[warn]  module not found: ch.qos.logback#logback-classic;1.1.1
[warn] ==== local: tried
[warn]   /home/user/.ivy2/local/ch.qos.logback/logback-classic/1.1.1/ivys/ivy.xml
[warn] ==== public: tried
[warn]   http://repo1.maven.org/maven2/ch/qos/logback/logback-classic/1.1.1/logback-classic-1.1.1.pom
[info] Resolving org.scala-lang#scala-reflect;2.10.3 ...
[warn] Host repo1.maven.org not found. url=http://repo1.maven.org/maven2/org/scala-lang/scala-reflect/2.10.3/scala-reflect-2.10.3.pom
[info] You probably access the destination server through a proxy server that is not well configured.
[warn]  module not found: org.scala-lang#scala-reflect;2.10.3
[warn] ==== local: tried
[warn]   /home/user/.ivy2/local/org.scala-lang/scala-reflect/2.10.3/ivys/ivy.xml
[warn] ==== public: tried
[warn]   http://repo1.maven.org/maven2/org/scala-lang/scala-reflect/2.10.3/scala-reflect-2.10.3.pom
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.scala-lang#scala-library;2.10.3: not found
[warn]  :: ch.qos.logback#logback-classic;1.1.1: not found
[warn]  :: org.scala-lang#scala-reflect;2.10.3: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::

离线工作真的无法清理吗？

我注意到 SBT 正在查找 .ivy2/local，但没有这样的文件夹。只有 '.ivy2/cache'。

更新：

添加 .ivy2/local 的建议无效。它给出了许多 MalformedURLException

[warn]  :: org.scala-lang#scala-library;2.10.3: ivy2 cache: unable to get resource for org/scala-lang#scala-library;2.10.3: res=/home/user/.ivy2/cache/org/scala-lang/scala-library/2.10.3/scala-library-2.10.3.pom: java.net.MalformedURLException: no protocol: /home/user/.ivy2/cache/org/scala-lang/scala-library/2.10.3/scala-library-2.10.3.pom

它正在寻找目录 org/scala-lang 等，但缓存中的目录格式为 org.scala-lang

更新 2

问题似乎是与 logback 的一些交互引起的。我已经为我的问题 here 创建了一个更清晰的版本，并且我接受了表明这“应该”开箱即用的答案。

Answer 1

如果您在线构建项目，那么您可以在之后离线。 基本上，您只需要将 ~/.ivy2 文件夹（可能还有 ~/.sbt 文件夹 - 不确定）从之前完成构建和依赖解析的位置复制到您的环境中。

在项目中删除target/，然后下线，我可以看到这确实会导致资源被解析。

[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Compiling 4 Scala sources to [...]

Answer 2

我不确定这是否可行，但我想您需要在您的 Build.scala（或 build.sbt）中添加另一个 resolver，如下所示：

resolvers += "ivy2 cache" at "/home/user/.ivy2/cache"

让我知道这是否有效，我也很好奇。

编辑：

我试过了，sbt 确实在你的 ivy2 缓存中查找，进入你的 build.sbt 并添加这一行：

resolvers += Resolver.file("ivy2 cache", file("/path/to/your/ivy2/cache/"))(Resolver.ivyStylePatterns)

现在SBT 也应该在该目录中查找。