CODEWITHSUNDEEP
sbt
Polymerase
Polymerase

Reputation: 6791

sbt console how to update to latest Scala version?

I have installed sbt using the instructions in Installing sbt on Linux.

$ sbt --version
sbt launcher version **0.13.8**

$ sbt console
[info] Starting scala interpreter...
[info] 
Welcome to Scala version 2.10.4 (OpenJDK 64-Bit Server VM, Java 1.7.0_79).

How to configure (or update) sbt so that sbt console uses the latest Scala version 2.11.6?

Upvotes: 12

Views: 11726

Answers (3)

Sam Malayek
Sam Malayek

Reputation: 3755

sbt ++ 2.11.11 console

Change 2.11.11 to the Scala version of your choice.

From sbt help ++:

++ <scala-version> [<command>]
    Changes the Scala version and runs a command.

    Sets the `scalaVersion` of all projects to <scala-version> and 
    reloads the build.
    If <command> is provided, it is then executed.

++ [<scala-version>=]<scala-home> [<command>]
    Uses the Scala installation at <scala-home> by configuring the 
    scalaHome setting for
    all projects.

    If <scala-version> is specified, it is used as the value of the 
    scalaVersion setting.
    This is important when using managed dependencies.  This version 
    will determine the
    cross-version used as well as transitive dependencies.

    If <command> is provided, it is then executed.

    See also `help +`

Upvotes: 3

waku
waku

Reputation: 111

Run sbt console in the same directory with your build.sbt and it will load the version you specified.

You can also place the build.sbt file in the .sbt/0.13/ directory:

cat <<END > ~/.sbt/0.13/build.sbt
scalaVersion := "2.11.8"
END

Then, executing sbt console from anywhere else will give you your favourite version of scala. (If there is a local build.sbt file in the directory you execute sbt from, the locally specified version will override the global).

Upvotes: 6

Brian
Brian

Reputation: 20285

Create a build.sbt file and enter the scalaVersion:

scalaVersion := "2.11.5"

Run sbt console in the same directory with your build.sbt and it will load the version you specified.

...:sbttest/ $ sbt console                                                                                                                                                                                                    [10:55:53]
[info] Loading global plugins from /home/.../.sbt/0.13/plugins
[info] Set current project to sbttest (in build file:/tmp/sbttest/)
[info] Starting scala interpreter...
[info] 
Welcome to Scala version 2.11.5 (OpenJDK 64-Bit Server VM, Java 1.7.0_79).
Type in expressions to have them evaluated.
Type :help for more information.

scala>

Upvotes: 15

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