Annotation of /bin/PrepareSnapshot

#!/usr/bin/perl -w
# PrepareSnapshot
# Vadim Mikheev, (c) 2000, PostgreSQL Inc.

eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
    & eval 'exec perl -S $0 $argv:q'
    if 0;

BEGIN {
        my $basedir = $0; $basedir =~ s#/[^/]+$##;
        unshift(@INC, "$basedir/../share");
}

use strict;
use IO::File;
use Getopt::Long;
use RServ;

$| = 1;

my ($debug,$verbose) = (0,0);
my ($help,$masterhost,$masterport,$masteruser,$masterpassword,
        $slavehost,$slaveport,$slaveuser,$slavepassword);
my $snapshot;

my $result = GetOptions(
        "debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help,
        "masterhost=s" => \$masterhost, "masterport=i" => \$masterport,
        "masteruser=s" => \$masteruser, "masterpassword=s" => \$masterpassword,
        "snapshot=s" => \$snapshot,
        );

if (defined($help) || (scalar(@ARGV) < 2)) {
    print "Usage: $0 [options] masterdb slavedb
Options:
        --masterhost=hostname --masterport=port
        --masteruser=username --masterpassword=string
        --snapshot=snapshot
";
    exit ((scalar(@ARGV) < 2)? 1:0);
}

$RServ::quiet = !$verbose;
if ($debug) {
        $RServ::quiet = 0;
        no warnings 'vars';
        $RServ::debug = $debug;
}

my $master = $ARGV[0] || "master";
my $slave = $ARGV[1] || "slave";

my $minfo = MkInfo($master,$masterhost,$masterport,$masteruser,$masterpassword);
my $sinfo = MkInfo($slave,$slavehost,$slaveport,$slaveuser,$slavepassword);

my $mconn = Pg::connectdb($minfo);
if ($mconn->status != Pg::PGRES_CONNECTION_OK) {
    print STDERR "Failed opening $minfo\n";
    exit 1;
}
my $sconn = Pg::connectdb($sinfo);
if ($sconn->status != Pg::PGRES_CONNECTION_OK) {
    print STDERR "Failed opening $minfo\n";
    exit 1;
}

my $outf;
if (defined($snapshot)) {
    $outf = new IO::File;    
    $outf->open("> $snapshot");
} else {
    $outf = *STDOUT;
}

$slavehost = 'localhost' if (! $slavehost);
my $slaveId  = GetServerId($mconn, $slave, $slavehost);
if (! defined($slaveId)) {
        print STDERR "Can't find SlaveId for db '$slave' on host $slavehost. Is this database slave?\n";
        exit 1;
}
die "Unknown SlaveId $slaveId for host $slavehost" if ($slaveId < 0);

$masterhost = 'localhost' if (! $masterhost);
my $masterId  = GetServerId($mconn, $master, $masterhost);
if (! defined($masterId)) {
        print STDERR "Can't find masterId for db '$master' on host $masterhost. Is this database master?\n";
        exit 1;
}
die "Unknown masterId $masterId for host $masterhost" if ($masterId < 0);
my $res = PrepareSnapshot ($mconn, $sconn, $outf, $masterId, $slaveId);

if ($res == 0)
{
    printf STDERR "Sync-ed\n";
    exit(0);
}
if ($res > 0)
{
    printf STDERR "Snapshot dumped.\n";
    exit(0);
}

printf STDERR "ERROR\n";
exit(1);
1	dpavlin	1.4	#!/usr/bin/perl -w
2	dpavlin	1.1	# PrepareSnapshot
3			# Vadim Mikheev, (c) 2000, PostgreSQL Inc.
4
5			eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
6			& eval 'exec perl -S $0 $argv:q'
7			if 0;
8
9	dpavlin	1.4	BEGIN {
10			my $basedir = $0; $basedir =~ s#/[^/]+$##;
11			unshift(@INC, "$basedir/../share");
12			}
13	dpavlin	1.1
14	dpavlin	1.4	use strict;
15	dpavlin	1.1	use IO::File;
16			use Getopt::Long;
17			use RServ;
18
19			$\| = 1;
20
21	dpavlin	1.4	my ($debug,$verbose) = (0,0);
22			my ($help,$masterhost,$masterport,$masteruser,$masterpassword,
23			$slavehost,$slaveport,$slaveuser,$slavepassword);
24	dpavlin	1.6	my $snapshot;
25	dpavlin	1.4
26			my $result = GetOptions(
27			"debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help,
28			"masterhost=s" => \$masterhost, "masterport=i" => \$masterport,
29			"masteruser=s" => \$masteruser, "masterpassword=s" => \$masterpassword,
30			"snapshot=s" => \$snapshot,
31			);
32
33			if (defined($help) \|\| (scalar(@ARGV) < 2)) {
34			print "Usage: $0 [options] masterdb slavedb
35			Options:
36			--masterhost=hostname --masterport=port
37			--masteruser=username --masterpassword=string
38			--snapshot=snapshot
39			";
40			exit ((scalar(@ARGV) < 2)? 1:0);
41	dpavlin	1.1	}
42
43	dpavlin	1.5	$RServ::quiet = !$verbose;
44			if ($debug) {
45			$RServ::quiet = 0;
46			no warnings 'vars';
47			$RServ::debug = $debug;
48			}
49
50	dpavlin	1.1	my $master = $ARGV[0] \|\| "master";
51	dpavlin	1.3	my $slave = $ARGV[1] \|\| "slave";
52	dpavlin	1.1
53	dpavlin	1.11	my $minfo = MkInfo($master,$masterhost,$masterport,$masteruser,$masterpassword);
54			my $sinfo = MkInfo($slave,$slavehost,$slaveport,$slaveuser,$slavepassword);
55	dpavlin	1.3
56			my $mconn = Pg::connectdb($minfo);
57	dpavlin	1.4	if ($mconn->status != Pg::PGRES_CONNECTION_OK) {
58	dpavlin	1.3	print STDERR "Failed opening $minfo\n";
59			exit 1;
60			}
61			my $sconn = Pg::connectdb($sinfo);
62	dpavlin	1.4	if ($sconn->status != Pg::PGRES_CONNECTION_OK) {
63	dpavlin	1.3	print STDERR "Failed opening $minfo\n";
64			exit 1;
65			}
66	dpavlin	1.1
67	dpavlin	1.3	my $outf;
68	dpavlin	1.4	if (defined($snapshot)) {
69	dpavlin	1.3	$outf = new IO::File;
70	dpavlin	1.4	$outf->open("> $snapshot");
71	dpavlin	1.3	} else {
72	dpavlin	1.4	$outf = *STDOUT;
73	dpavlin	1.3	}
74	dpavlin	1.1
75	dpavlin	1.9	$slavehost = 'localhost' if (! $slavehost);
76			my $slaveId = GetServerId($mconn, $slave, $slavehost);
77	dpavlin	1.10	if (! defined($slaveId)) {
78	dpavlin	1.9	print STDERR "Can't find SlaveId for db '$slave' on host $slavehost. Is this database slave?\n";
79	dpavlin	1.4	exit 1;
80			}
81	dpavlin	1.9	die "Unknown SlaveId $slaveId for host $slavehost" if ($slaveId < 0);
82	dpavlin	1.2
83	dpavlin	1.10	$masterhost = 'localhost' if (! $masterhost);
84			my $masterId = GetServerId($mconn, $master, $masterhost);
85			if (! defined($masterId)) {
86			print STDERR "Can't find masterId for db '$master' on host $masterhost. Is this database master?\n";
87			exit 1;
88			}
89			die "Unknown masterId $masterId for host $masterhost" if ($masterId < 0);
90			my $res = PrepareSnapshot ($mconn, $sconn, $outf, $masterId, $slaveId);
91	dpavlin	1.1
92			if ($res == 0)
93			{
94	dpavlin	1.3	printf STDERR "Sync-ed\n";
95			exit(0);
96	dpavlin	1.1	}
97			if ($res > 0)
98			{
99	dpavlin	1.3	printf STDERR "Snapshot dumped.\n";
100			exit(0);
101	dpavlin	1.1	}
102
103			printf STDERR "ERROR\n";
104			exit(1);