我想弄清楚如何build.sbt为我自己的基于Scalding的项目创建一个文件。
烫伤源结构没有build.sbt文件。相反，它具有project/Build.scala构建定义。
将我自己的 sbt 项目与 Scalding 集成的正确方法是什么，所以我也可以稍后在 Eclipse 中使用sbt-eclipse插件导入它？
更新：
对于以下代码：
import cascading.tuple.Fields
import com.twitter.scalding._
class Scan(args: Args) extends Job(args) {
val output = TextLine("tmp/out.txt")
val wordsList = List(
("john"),
("liza"),
("nina"),
("x"))
val orderedPipe =
IterableSource[(String)](wordsList, ('word))
.debug
.write(output)
}
有了这个build.sbt：
name := "Scan"
version := "1.0"
libraryDependencies := Seq("com.twitter" %% "scalding" % "0.11.1")
我收到错误：
$ sbt
[info] Loading global plugins from /home/test/.sbt/0.13/plugins
[info] Set current project to Scan (in build file:/home/test/Cascading/Scala/Scan/)
> compile
[info] Updating {file:/home/test/Cascading/Scala/Scan/}scan...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] downloading http://repo1.maven.org/maven2/com/twitter/scalding_2.10/0.11.1/scalding_2.10-0.11.1.jar ...
[info] [SUCCESSFUL ] com.twitter#scalding_2.10;0.11.1!scalding_2.10.jar (641ms)
[info] Done updating.
[info] Compiling 1 Scala source to /home/test/Cascading/Scala/Scan/target/scala-2.10/classes...
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:1: not found: object cascading
[error] import cascading.tuple.Fields
[error] ^
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:2: object twitter is not a member of package com
[error] import com.twitter.scalding._
[error] ^
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:5: not found: type Job
[error] class Scan(args: Args) extends Job(args) {
[error] ^
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:5: not found: type Args
[error] class Scan(args: Args) extends Job(args) {
[error] ^
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:5: too many arguments for constructor Object: ()Object
[error] class Scan(args: Args) extends Job(args) {
[error] ^
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:6: not found: value TextLine
[error] val output = TextLine("tmp/out.txt")
[error] ^
[error] /home/test/Cascading/Scala/Scan/src/main/scala/Scan.scala:15: not found: value IterableSource
[error] IterableSource[(String)](wordsList, ('word))
[error] ^
[error] 7 errors found
[error] (compile:compile) Compilation failed
更新 2
完成后git clone git@github.com:twitter/scalding.git their repository，sbt publishLocal我仍然有相同的编译错误。
但是添加您建议的两行build.sbt允许我编译我的代码。所以以下build.sbt真的有效，谢谢！
name := "BlockScan"
version := "1.0"
libraryDependencies := Seq("com.twitter" %% "scalding" % "0.11.1")
lazy val scaldingCore = ProjectRef(uri("https://github.com/twitter/scalding.git"), "scalding-core")
lazy val myProject = project in file(".") dependsOn scaldingCore
'sbt eclipse' 创建 Eclipse 项目，它不能在 Eclipse 下编译并报告以下错误：
Project 'Scan' is missing required Java project: 'scalding-core'
More than one scala library found in the build path (/home/test/usr/eclipse-scala-3.0.3/configuration/org.eclipse.osgi/bundles/290/1/.cp/lib/scala-library.jar, /home/test/wks/Cascading/Scala/scalding/target/scala-2.9.3/scalding-assembly-0.10.0.jar).At least one has an incompatible version. Please update the project build path so it contains only compatible scala libraries.
scalacheck_2.9.3-1.10.0.jar is cross-compiled with an incompatible version of Scala (2.9.3).
specs_2.9.3-1.6.9.jar is cross-compiled with an incompatible version of Scala (2.9.3).