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scalamacports

How to set properly SCALA_HOME in a macport installed scala

I have installed multiple versions of Scala (2.9 and 2.10) on my mac (OS X 10.7.5) using macports. I like this way because can switch easily between these two versions by the simple "port select" command. But, the SCALA_HOME environment variable does not get set automatically with this command.

Is there a proper nice macport command to set correctly the SCALA_HOME variable? If no, what directory should the SCALA_HOME point to in a macport installed scala?

Thanks

EDIT: Until now the best way I found is with a shell script that looks what is the current scala command and adjust the SCALA_HOME variable accordingly. I run it always after switching the Scala version.

Here is the important command in the script. I'm not an expert shell programmer, therefore I'll be thankful for any suggestion:

export SCALA_HOME=$(ls -l `which scala` | gawk 'match($0, "(/opt/local/share/.*)/bin/scala", a) {print a[1]}')

Solution

  • OK, until now the best solution I found is to run following command after changing scala version:

    export SCALA_HOME=$(ls -l `which scala` | gawk 'match($0, "(/opt/local/share/.*)/bin/scala", a) {print a[1]}')

    I have included that command also in my .bash_profile so my SCALA_HOME always points to the scala version I am using currently.

    This command uses gawk 4.1.1 installed from MacPorts.