/[BackupPC]/trunk/bin/BackupPC_incPartsUpdate
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Contents of /trunk/bin/BackupPC_incPartsUpdate

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Revision 196 - (show annotations)
Thu Oct 13 18:32:59 2005 UTC (18 years, 7 months ago) by dpavlin
File size: 3894 byte(s)
 r8506@llin:  dpavlin | 2005-10-13 19:26:50 +0200
 added parts to backups, make split calculate suffix length, added ability
 to join parts of increments if media size changes

1 #!/usr/local/bin/perl -w
2
3 use strict;
4 use lib "__INSTALLDIR__/lib";
5
6 use DBI;
7 use BackupPC::Lib;
8 use BackupPC::View;
9 use Data::Dumper;
10 use Time::HiRes qw/time/;
11 use POSIX qw/strftime/;
12 use BackupPC::SearchLib;
13 use Cwd qw/abs_path/;
14
15 my $path = abs_path($0);
16 $path =~ s#/[^/]+$#/#;
17 my $tarIncCreate = $path .= 'BackupPC_tarIncCreate';
18
19 die "can't find $tarIncCreate: $!\n" unless (-x $tarIncCreate);
20
21 my $debug = 0;
22 $|=1;
23
24 my $start_t = time();
25
26 my $t_fmt = '%Y-%m-%d %H:%M:%S';
27
28 my $hosts;
29 my $bpc = BackupPC::Lib->new || die;
30 my %Conf = $bpc->Conf();
31 my $TopDir = $bpc->TopDir();
32 my $beenThere = {};
33
34 my $dsn = $Conf{SearchDSN} || die "Need SearchDSN in config.pl\n";
35 my $user = $Conf{SearchUser} || '';
36
37 my $dbh = DBI->connect($dsn, $user, "", { RaiseError => 1, AutoCommit => 0 });
38
39 my $tar_dir = $Conf{InstallDir}.'/'.$Conf{GzipTempDir};
40
41 die "problem with $tar_dir, check GzipTempDir in configuration\n" unless (-d $tar_dir && -w $tar_dir);
42
43 #---- subs ----
44
45 sub fmt_time {
46 my $t = shift || return;
47 my $out = "";
48 my ($ss,$mm,$hh) = gmtime($t);
49 $out .= "${hh}h" if ($hh);
50 $out .= sprintf("%02d:%02d", $mm,$ss);
51 return $out;
52 }
53
54 sub curr_time {
55 return strftime($t_fmt,localtime());
56 }
57
58 #----- main
59
60 my $sth = $dbh->prepare( qq{
61
62 select
63 backups.id as backup_id,
64 hosts.name as host,
65 shares.name as share,
66 backups.num as num,
67 inc_size,
68 parts
69 from backups
70 join shares on backups.hostid = shares.hostid
71 and shares.id = backups.shareid
72 join hosts on shares.hostid = hosts.id
73 where not inc_deleted
74 order by backups.date
75
76 } );
77
78 $sth->execute();
79
80 my $sth_inc_size = $dbh->prepare(qq{ update backups set inc_size = ?, parts = ? where id = ? });
81 my $sth_inc_deleted = $dbh->prepare(qq{ update backups set inc_deleted = ? where id = ? });
82
83 %BackupPC::SearchLib::Conf = %Conf;
84
85 while (my $row = $sth->fetchrow_hashref) {
86 my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});
87
88 # this will return -1 if file doesn't exist
89 my $size = BackupPC::SearchLib::get_tgz_size_by_name($tar_file);
90
91 print curr_time, " ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file";
92
93 my $t = time();
94
95 # re-create archive?
96 if ($row->{'inc_size'} == -1 || $size == -1 || $row->{'inc_size'} != $size) {
97 my $cmd = qq{rm -Rf $tar_dir/$tar_file && $tarIncCreate -h "$row->{'host'}" -s "$row->{'share'}" -n $row->{'num'} | gzip -9 > $tar_dir/$tar_file};
98 print STDERR "## $cmd\n" if ($debug);
99
100 system($cmd) == 0 or die "failed: $?";
101
102 $size = (stat( "$tar_dir/$tar_file" ))[7];
103 }
104
105 if ($size > 45) {
106
107 my $max_size = $Conf{'MaxArchiveSize'} || die "problem with MaxArchieSize parametar";
108 $max_size *= 1024; # convert to bytes
109
110 my $parts = int( ($size + $max_size - 1) / $max_size );
111
112 if (-d "$tar_dir/$tar_file" && $parts != $row->{'parts'}) {
113 print " join";
114
115 my $in = my $out = "$tar_dir/$tar_file";
116 $out .= '.tmp';
117
118 # FIXME I should really order parts manually!
119 system("cat $in/part* > $out && rm -Rf $in && mv $out $in") == 0 or die "can't join $in: $?";
120 }
121
122 if ($size > $max_size && ! -d "$tar_dir/$tar_file") {
123 print " split/$parts";
124 my $in = my $out = "$tar_dir/$tar_file";
125 $out .= '.tmp';
126 rename $in, $out || die "can't rename $in: $!";
127 mkdir $in || die "can't mkdir $in: $!";
128
129 my $suffix_len = length("$parts");
130 system("split -d -b $max_size -a $suffix_len $out $in/part") == 0 or die "can't split $out: $?";
131 unlink $out || die "can't unlink $out: $!";
132 }
133
134 $sth_inc_size->execute($size, $parts, $row->{'backup_id'});
135 $sth_inc_deleted->execute(0, $row->{'backup_id'});
136
137 printf(" %1.2f MB", ($size / 1024 / 1024));
138
139 } else {
140 $sth_inc_deleted->execute(1, $row->{'backup_id'});
141 unlink "$tar_dir/$tar_file" || die "can't delete $tar_dir/$tar_file: $!\n";
142 print " EMPTY";
143 }
144 print ", dur: ",fmt_time(time() - $t), "\n";
145
146 $dbh->commit;
147
148 }
149
150 undef $sth;
151 $dbh->disconnect;

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