druid/examples/bin/verify-java

34 lines
1.1 KiB
Perl
Executable File

#!/usr/bin/env perl
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
use strict;
use warnings;
my $java_version = qx[java -version 2>&1];
if ($?) {
die "Please install Java 8 or better!\n";
}
# If we know it won't work, die. Otherwise hope for the best.
if ($java_version =~ /java version \"((\d+)\.(\d+).*?)\"/ && ($2 < 1 || $3 < 8)) {
die "Please upgrade to Java 8 or better! Your current version is: $1\n";
}
exit 0;