/[rserv]/bin/PrepareSnapshot
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 1.3 by dpavlin, Tue Aug 5 09:52:36 2003 UTC revision 1.4 by dpavlin, Tue Aug 5 21:10:28 2003 UTC
# Line 1  Line 1 
1  #!/usr/bin/perl  #!/usr/bin/perl -w
2  # PrepareSnapshot  # PrepareSnapshot
3  # Vadim Mikheev, (c) 2000, PostgreSQL Inc.  # Vadim Mikheev, (c) 2000, PostgreSQL Inc.
4    
# Line 6  eval '(exit $?0)' && eval 'exec perl -S Line 6  eval '(exit $?0)' && eval 'exec perl -S
6      & eval 'exec perl -S $0 $argv:q'      & eval 'exec perl -S $0 $argv:q'
7      if 0;      if 0;
8    
9  use lib "/usr/share/postgresql/contrib";  BEGIN {
10            my $basedir = $0; $basedir =~ s#/[^/]+$##;
11            unshift(@INC, "$basedir/../share");
12    }
13    
14    use strict;
15  use IO::File;  use IO::File;
16  use Getopt::Long;  use Getopt::Long;
17  use RServ;  use RServ;
# Line 15  use Sys::Hostname; Line 19  use Sys::Hostname;
19    
20  $| = 1;  $| = 1;
21    
22  $result = GetOptions("debug!", "verbose!", "help", "snapshot=s",  my ($debug,$verbose) = (0,0);
23                       "masterhost=s", "masteruser=s", "masterpassword=s",  my ($help,$masterhost,$masterport,$masteruser,$masterpassword,
24                       "slavehost=s", "slaveuser=s", "slavepassword=s");          $slavehost,$slaveport,$slaveuser,$slavepassword);
25    my $snapshot = "__Snapshot";
26  my $debug = $opt_debug || 0;  
27  my $verbose = $opt_verbose || 0;  my $result = GetOptions(
28  my $snapshot = $opt_snapshot || "__Snapshot";          "debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help,
29            "masterhost=s" => \$masterhost, "masterport=i" => \$masterport,
30  if (defined($opt_help) || (scalar(@ARGV) < 2)) {          "masteruser=s" => \$masteruser, "masterpassword=s" => \$masterpassword,
31      print "Usage: $0 --snapshot=file --masterhost=name --masteruser=name --masterpassword=string --slavehost=name --slaveuser=name --slavepassword=string masterdb slavedb\n";          "snapshot=s" => \$snapshot,
32      exit ((scalar(@ARGV) < 1)? 1:0);          );
33    
34    if (defined($help) || (scalar(@ARGV) < 2)) {
35        print "Usage: $0 [options] masterdb slavedb
36    Options:
37            --masterhost=hostname --masterport=port
38            --masteruser=username --masterpassword=string
39            --snapshot=snapshot
40    ";
41        exit ((scalar(@ARGV) < 2)? 1:0);
42  }  }
43    
44  my $master = $ARGV[0] || "master";  my $master = $ARGV[0] || "master";
45  my $slave = $ARGV[1] || "slave";  my $slave = $ARGV[1] || "slave";
46    
47  my $minfo = "dbname=$master";  my $minfo = "dbname=$master";
48  $minfo = "$minfo host=$opt_masterhost" if (defined($opt_masterhost));  $minfo = "$minfo host=$masterhost" if (defined($masterhost));
49  $minfo = "$minfo user=$opt_masteruser" if (defined($opt_masteruser));  $minfo = "$minfo port=$masterport" if (defined($masterport));
50  $minfo = "$minfo password=$opt_masterpassword" if (defined($opt_masterpassword));  $minfo = "$minfo user=$masteruser" if (defined($masteruser));
51    $minfo = "$minfo password=$masterpassword" if (defined($masterpassword));
52    
53  my $sinfo = "dbname=$slave";  my $sinfo = "dbname=$slave";
54  $sinfo = "$sinfo host=$opt_slavehost" if (defined($opt_slavehost));  $sinfo = "$sinfo host=$slavehost" if (defined($slavehost));
55  $sinfo = "$sinfo user=$opt_slaveuser" if (defined($opt_slaveuser));  $sinfo = "$sinfo port=$slaveport" if (defined($slaveport));
56  $sinfo = "$sinfo password=$opt_slavepassword" if (defined($opt_slavepassword));  $sinfo = "$sinfo user=$slaveuser" if (defined($slaveuser));
57    $sinfo = "$sinfo password=$slavepassword" if (defined($slavepassword));
58    
59  my $mconn = Pg::connectdb($minfo);  my $mconn = Pg::connectdb($minfo);
60  if ($mconn->status != PGRES_CONNECTION_OK) {  if ($mconn->status != Pg::PGRES_CONNECTION_OK) {
61      print STDERR "Failed opening $minfo\n";      print STDERR "Failed opening $minfo\n";
62      exit 1;      exit 1;
63  }  }
64  my $sconn = Pg::connectdb($sinfo);  my $sconn = Pg::connectdb($sinfo);
65  if ($sconn->status != PGRES_CONNECTION_OK) {  if ($sconn->status != Pg::PGRES_CONNECTION_OK) {
66      print STDERR "Failed opening $minfo\n";      print STDERR "Failed opening $minfo\n";
67      exit 1;      exit 1;
68  }  }
69    
70  my $outf;  my $outf;
71  if (defined($opt_snapshot)) {  if (defined($snapshot)) {
72      $outf = new IO::File;          $outf = new IO::File;    
73      $outf->open("> $opt_snapshot");      $outf->open("> $snapshot");
74  } else {  } else {
75      $outf = STDOUT;      $outf = *STDOUT;
76  }  }
77    
78  $hostname = defined($opt_slavehost) ? $opt_slavehost : hostname;  my $hostname = defined($slavehost) ? $slavehost : hostname;
79  $slaveId  = GetSlaveId($mconn, $slave, $hostname);  my $slaveId  = GetSlaveId($mconn, $slave, $hostname);
80    if (! $slaveId) {
81            print STDERR "Can't find SlaveId for db '$slave' on host $hostname. Is this database slave?\n";
82            exit 1;
83    }
84  die "Unknown SlaveId $slaveId for host $hostname" if ($slaveId < 0);  die "Unknown SlaveId $slaveId for host $hostname" if ($slaveId < 0);
85    
86  $res = PrepareSnapshot ($mconn, $sconn, $outf, $slaveId);  my $res = PrepareSnapshot ($mconn, $sconn, $outf, $slaveId);
87    
88  if ($res == 0)  if ($res == 0)
89  {  {
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