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#!/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;
use Cwd qw/realpath/;
use Fcntl;
use File::Basename;
use FindBin;
use Getopt::Long qw/:config require_order gnu_compat/;
sub usage
{
die "usage: $0 (--restart <service> | --tail <service> | --down) [-d <var dir>]\n";
}
# Parse arguments
my %opt = (
'vardir' => realpath("$FindBin::Bin/../var"),
);
usage() unless GetOptions(\%opt, 'command=s', 'restart=s', 'down', 'tail=s', 'vardir|d=s');
my $svdir = "$opt{vardir}/sv";
my $command;
if ($opt{command}) {
usage() if $command;
$command = $opt{command};
}
if ($opt{down}) {
usage() if $command;
$command = 'd';
}
if ($opt{restart}) {
usage() if $command;
$command = "k $opt{restart}";
}
if ($opt{tail}) {
usage() if $command;
exec "tail", "-f", "$svdir/$opt{tail}.log"
or die "exec failed: $!\n";
}
usage() unless $command;
my $fifofile = "$svdir/.ctrl";
sysopen my $fifofh, $fifofile, O_WRONLY or die "Can't open control fifo, perhaps supervise is not running: $!\n";
print $fifofh "$command\n";
close $fifofh;
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