main/programming/language/java/java-openjdk/comar/jre_package.py

#!/usr/bin/env python

import os

from pisi.util import join_path

executables = (
    'jaotc', 'java', 'jfr', 'jjs', 'jrunscript', 'keytool', 'pack200', 'rmid', 'rmiregistry', 'unpack200'
)
bin_dir = '/usr/bin'
jvm_dir = '/usr/lib/jvm/java-openjdk'


def postInstall(fromVersion, fromRelease, toVersion, toRelease):
    for executable in executables:
        try:
            os.system('update-alternatives --install %s %s %s 2' % (
                join_path(bin_dir, executable), executable, join_path(jvm_dir, 'bin', executable)
            ))
            os.system('update-alternatives --auto %s' % executable)
        except:
            pass


def postRemove():
    for executable in executables:
        try:
            os.system('update-alternatives --remove %s %s' % (executable, join_path(jvm_dir, 'bin', executable)))
            os.system('update-alternatives --auto %s' % executable)
        except:
            pass