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

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Revision 254 - (show annotations)
Mon Dec 12 16:07:27 2005 UTC (18 years, 5 months ago) by dpavlin
File size: 5337 byte(s)
 r11640@llin:  dpavlin | 2005-12-12 18:07:17 +0100
 tar_check works again and creates missing md5 sum files (if needed)

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 BackupPC::Attrib qw/:all/;
10 use Data::Dumper;
11 use Time::HiRes qw/time/;
12 use POSIX qw/strftime/;
13 use Cwd qw/abs_path/;
14 use File::Which;
15 use Archive::Tar::Streamed;
16 use Algorithm::Diff;
17 use Getopt::Std;
18
19 my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib";
20 my %Conf = $bpc->Conf();
21
22 use BackupPC::SearchLib;
23 %BackupPC::SearchLib::Conf = %Conf;
24
25 # cludge: minimum .tar.gz size
26 my $MIN_TAR_SIZE = 80;
27
28 my $path = abs_path($0);
29 $path =~ s#/[^/]+$#/#;
30 my $tarIncCreate = $path .= 'BackupPC_tarIncCreate';
31
32 die "can't find $tarIncCreate: $!\n" unless (-x $tarIncCreate);
33
34 my $bin;
35 foreach my $c (qw/gzip md5sum/) {
36 $bin->{$c} = which($c) || die "$0 needs $c, install it\n";
37 }
38
39 my %opt;
40 getopts("cd", \%opt );
41
42 my $debug = $opt{d};
43 my $check = $opt{c} && print STDERR "NOTICE: tar archive check forced\n";
44
45 $|=1;
46
47 my $start_t = time();
48
49 my $t_fmt = '%Y-%m-%d %H:%M:%S';
50
51 my $dsn = $Conf{SearchDSN} || die "Need SearchDSN in config.pl\n";
52 my $user = $Conf{SearchUser} || '';
53
54 my $dbh = DBI->connect($dsn, $user, "", { RaiseError => 1, AutoCommit => 0 });
55
56 my $tar_dir = $Conf{InstallDir}.'/'.$Conf{GzipTempDir};
57
58 die "problem with $tar_dir, check GzipTempDir in configuration\n" unless (-d $tar_dir && -w $tar_dir);
59
60 #---- subs ----
61
62 sub fmt_time {
63 my $t = shift || return;
64 my $out = "";
65 my ($ss,$mm,$hh) = gmtime($t);
66 $out .= "${hh}h" if ($hh);
67 $out .= sprintf("%02d:%02d", $mm,$ss);
68 return $out;
69 }
70
71 sub curr_time {
72 return strftime($t_fmt,localtime());
73 }
74
75 sub tar_check($$$$) {
76 my ($host,$share,$num,$filename) = @_;
77
78 if ($debug) {
79 print STDERR " {{ CHECK: ${host}:${share}#${num} and $filename";
80 } else {
81 print " check";
82 }
83
84 my @tar_parts;
85
86 if (-d "$tar_dir/$filename") {
87 print STDERR " multi-part" if ($opt{d});
88 opendir(my $dir, "$tar_dir/$filename") || die "can't readdir $tar_dir/$filename: $!";
89 @tar_parts = map { my $p = $_; $p =~ s#^#${filename}/#; $p } grep { !/^\./ && !/md5/ && -f "$tar_dir/$filename/$_" } readdir($dir);
90 closedir($dir);
91 } else {
92 push @tar_parts, "${filename}.tar.gz";
93 }
94
95 my @tar_files;
96
97 print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d});
98
99 print " reading";
100
101 foreach my $tarfilename (@tar_parts) {
102
103 print STDERR " $tarfilename" if ($debug);
104
105 my $path = "$tar_dir/$tarfilename";
106 my $md5 = $path;
107 $md5 =~ s/\.tar\.gz$/.md5/ || die "can't create md5 filename from $md5";
108 if (! -e $md5) {
109 print ", creating md5";
110 system( $bin->{md5sum} . " $path > $md5") == 0 or die "can't create md5 $path: $!";
111 }
112
113 open(my $fh, "gzip -cd $tar_dir/$tarfilename |") or die "can't open $tar_dir/$tarfilename: $!";
114 binmode($fh);
115 my $tar = Archive::Tar::Streamed->new($fh);
116
117 while(my $entry = $tar->next) {
118 push @tar_files, $entry->name;
119 }
120 }
121
122 @tar_files = sort @tar_files;
123 print STDERR " ",($#tar_files + 1), " files" if ($debug);
124
125 print STDERR ", database" if ($debug);
126
127 my $sth = $dbh->prepare(qq{
128 SELECT path,type
129 FROM files
130 JOIN shares on shares.id = shareid
131 JOIN hosts on hosts.id = shares.hostid
132 WHERE hosts.name = ? and shares.name = ? and backupnum = ?
133 });
134 $sth->execute($host, $share, $num);
135 my @db_files;
136 while( my $row = $sth->fetchrow_hashref ) {
137
138 my $path = $row->{'path'} || die "no path?";
139 $path =~ s#^/#./#;
140 $path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR);
141 push @db_files, $path;
142 }
143
144 print STDERR " ",($#db_files + 1), " files, diff" if ($debug);
145
146 @db_files = sort @db_files;
147
148 my $same = 1;
149 if ($#tar_files != $#db_files) {
150 $same = 0;
151 print STDERR " NUMBER" if ($debug);
152 } else {
153 my $diff = Algorithm::Diff->new(\@tar_files, \@db_files);
154 while ( $diff->Next() ) {
155 next if $diff->Same();
156 $same = 0;
157 print "< $_\n" for $diff->Items(1);
158 print "> $_\n" for $diff->Items(2);
159 }
160 }
161
162 print " ",($same ? 'ok' : 'DIFFERENT');
163 print STDERR " }} " if ($debug);
164
165 return $same;
166 }
167
168
169 #----- main
170
171 my $sth = $dbh->prepare( qq{
172
173 select
174 backups.id as backup_id,
175 hosts.name as host,
176 shares.name as share,
177 backups.num as num,
178 inc_size,
179 parts
180 from backups
181 join shares on backups.hostid = shares.hostid
182 and shares.id = backups.shareid
183 join hosts on shares.hostid = hosts.id
184 where not inc_deleted
185 order by backups.date
186
187 } );
188
189 $sth->execute();
190 my $num_backups = $sth->rows;
191 my $curr_backup = 1;
192
193 while (my $row = $sth->fetchrow_hashref) {
194 my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});
195
196 # this will return -1 if file doesn't exist
197 my $size = BackupPC::SearchLib::get_tgz_size_by_name($tar_file);
198
199 print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d});
200
201 if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} == $size && ( $check && tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) || 1) ) {
202 next;
203 }
204
205 print curr_time, " $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file";
206 $curr_backup++;
207
208 my $t = time();
209
210 # re-create archive?
211 my $cmd = qq{ $tarIncCreate -h "$row->{'host'}" -s "$row->{'share'}" -n $row->{'num'} -f };
212 print STDERR "## $cmd\n" if ($debug);
213
214 if (system($cmd) != 0) {
215 print STDERR " FAILED";
216 }
217
218 print ", dur: ",fmt_time(time() - $t), "\n";
219
220 $dbh->commit;
221
222 }
223
224 undef $sth;
225 $dbh->disconnect;

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