#!/usr/bin/perl
#============================================================= -*-perl-*-
#
# BackupPC_archiveStart: start an archive request from the
# command line.
#
# DESCRIPTION
#
#   Usage: BackupPC_archiveStart archiveHost userName hosts...
#
#   Initiates an archive request on archive host archiveHost
#   for the listed hosts.  The latest backup for each host is
#   archived.  The userName is name of the requesting user,
#   which appears in the log files.
#
# AUTHOR
#   Craig Barratt  <cbarratt@users.sourceforge.net>
#
# COPYRIGHT
#   Copyright (C) 2007-2020  Craig Barratt
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#========================================================================
#
# Version 4.4.0, released 20 Jun 2020.
#
# See http://backuppc.sourceforge.net.
#
#========================================================================

use strict;
no utf8;
use lib "/usr/share/backuppc/lib";
use Getopt::Std;
use BackupPC::Lib;

die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );

my %opts;

# no options currently
if ( !getopts("", \%opts) || @ARGV < 3 ) {
    print STDERR <<EOF;
usage: $0 archiveHost userName hosts...
EOF
    exit(1);
}

my $Hosts       = $bpc->HostInfoRead();
my $ArchiveHost = $ARGV[0];
my $UserName    = $ARGV[1];
my $TopDir      = $bpc->{Conf}{TopDir};

if ( !defined($Hosts->{$ArchiveHost}) ) {
    print(STDERR "$0: archive host $ArchiveHost doesn't exist... quitting\n");
    exit(1);
}
$bpc->ConfigRead($ArchiveHost);

my(@HostList, @BackupList);
for ( my $i = 2 ; $i < @ARGV ; $i++ ) {
    my $host = $ARGV[$i];
    if ( !defined($Hosts->{$host}) ) {
        print(STDERR "$0: host $host doesn't exist... quitting\n");
        exit(1);
    }
    my @backups = $bpc->BackupInfoRead($host);
    if ( !@backups ) {
        print(STDERR "$0: host $host doesn't have any backups... quitting\n");
        exit(1);
    }
    push(@HostList,   $host);
    push(@BackupList, $backups[$#backups]{num});
}

my $ReqFileName;
for ( my $i = 0 ; ; $i++ ) {
    $ReqFileName = "archiveReq.$$.$i";
    last if ( !-f "$TopDir/pc/$ArchiveHost/$ReqFileName" );
}
my %ArchiveReq = (
    archiveloc  => $bpc->{Conf}{ArchiveDest},
    archtype    => 0,
    compression => $bpc->{Conf}{ArchiveComp} eq 'none' ? $bpc->{Conf}{CatPath}
    : ($bpc->{Conf}{ArchiveComp} eq 'gzip' ? $bpc->{Conf}{GzipPath} : $bpc->{Conf}{Bzip2Path}),
    compext => $bpc->{Conf}{ArchiveComp} eq 'none' ? ''
    : ($bpc->{Conf}{ArchiveComp} eq 'gzip' ? '.gz' : '.bz2'),
    parfile    => $bpc->{Conf}{ArchivePar},
    splitsize  => '0000000',
    host       => $ArchiveHost,
    HostList   => \@HostList,
    BackupList => \@BackupList,
    user       => $UserName,
    reqTime    => time,
);
my $archive = Data::Dumper->new([\%ArchiveReq], [qw(*ArchiveReq)]);
$archive->Indent(1);
if ( !open(REQ, ">", "$TopDir/pc/$ArchiveHost/$ReqFileName") ) {
    print(STDERR "$0: can't open/write request file $TopDir/pc/$ArchiveHost/$ReqFileName... quitting\n");
    exit(1);
}
binmode(REQ);
print REQ $archive->Dump;
close(REQ);
$bpc->ServerConnect($bpc->{Conf}{ServerHost}, $bpc->{Conf}{ServerPort});
my $reply = $bpc->ServerMesg("archive $UserName $ArchiveHost $ReqFileName");
$bpc->ServerDisconnect();
print("Sent archive request, reply: $reply\n");
exit(0);
