mirror of https://github.com/apache/druid.git
71 lines
2.0 KiB
Perl
Executable File
71 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/env perl
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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use strict;
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use warnings;
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use File::Basename;
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sub fail_check {
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my ($current_version) = @_;
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my $current_version_text = $current_version
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? "Your current version is: $current_version."
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: "Make sure that \"java\" is installed and on your PATH.";
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print STDERR <<"EOT";
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Druid requires Java 8. $current_version_text
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If you believe this check is in error, you can skip it using an
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environment variable:
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export DRUID_SKIP_JAVA_CHECK=1
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Otherwise, install Java 8 and try again.
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This script searches for Java 8 in 3 locations in the following
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order
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* DRUID_JAVA_HOME
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* JAVA_HOME
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* java (installed on PATH)
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EOT
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exit 1;
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}
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my $skip_var = $ENV{'DRUID_SKIP_JAVA_CHECK'};
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if ($skip_var && $skip_var ne "0" && $skip_var ne "false" && $skip_var ne "f") {
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exit 0;
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}
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my $cwd = dirname(__FILE__);
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my $java_bin_dir = `. $cwd/java-util && get_java_bin_dir 2>&1`;
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# If we could not find java
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if ($java_bin_dir eq "") {
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fail_check()
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}
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my $java_exec = "${java_bin_dir}/java";
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my $java_version = qx[$java_exec -version 2>&1];
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if ($?) {
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fail_check();
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}
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# If we know it won't work, die. Otherwise hope for the best.
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if ($java_version =~ /version \"((\d+)\.(\d+).*?)\"/ && ($2 != 1 || $3 != 8)) {
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fail_check($1);
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}
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