scala 编译工具 sbt 安装包。
Little or no configuration required for simple projects
Scala-based build definition that can use the full flexibility of Scala code
Accurate incremental recompilation using information extracted from the compiler
Continuous compilation and testing with triggered execution
Packages and publishes jars
Generates documentation with scaladoc
Supports mixed Scala/Java projects
Supports testing with ScalaCheck, specs, and ScalaTest. JUnit is supported by a plugin.
Starts the Scala REPL with project classes and dependencies on the classpath
Modularization supported with sub-projects
External project support (list a git repository as a dependency!)
Parallel task execution, including parallel test execution
Library management support: inline declarations, external Ivy or Maven configuration files, or manual management
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