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

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Revision 264 - (show annotations)
Tue Dec 13 00:10:47 2005 UTC (18 years, 4 months ago) by dpavlin
File size: 7717 byte(s)
 r11657@llin:  dpavlin | 2005-12-13 02:00:02 +0100
 re-create backup_parts 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 use File::Slurp;
19
20 my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib";
21 my %Conf = $bpc->Conf();
22
23 use BackupPC::SearchLib;
24 %BackupPC::SearchLib::Conf = %Conf;
25
26 my $path = abs_path($0);
27 $path =~ s#/[^/]+$#/#;
28 my $tarIncCreate = $path .= 'BackupPC_tarIncCreate';
29
30 die "can't find $tarIncCreate: $!\n" unless (-x $tarIncCreate);
31
32 my $bin;
33 foreach my $c (qw/gzip md5sum/) {
34 $bin->{$c} = which($c) || die "$0 needs $c, install it\n";
35 }
36
37 my %opt;
38 getopts("cd", \%opt );
39
40 my $debug = $opt{d};
41 my $check = $opt{c} && print STDERR "NOTICE: tar archive check forced\n";
42
43 $|=1;
44
45 my $start_t = time();
46
47 my $t_fmt = '%Y-%m-%d %H:%M:%S';
48
49 my $dsn = $Conf{SearchDSN} || die "Need SearchDSN in config.pl\n";
50 my $user = $Conf{SearchUser} || '';
51
52 my $dbh = DBI->connect($dsn, $user, "", { RaiseError => 1, AutoCommit => 0 });
53
54 my $tar_dir = $Conf{InstallDir}.'/'.$Conf{GzipTempDir};
55
56 die "problem with $tar_dir, check GzipTempDir in configuration\n" unless (-d $tar_dir && -w $tar_dir);
57
58 #---- subs ----
59
60 sub fmt_time {
61 my $t = shift || return;
62 my $out = "";
63 my ($ss,$mm,$hh) = gmtime($t);
64 $out .= "${hh}h" if ($hh);
65 $out .= sprintf("%02d:%02d", $mm,$ss);
66 return $out;
67 }
68
69 sub curr_time {
70 return strftime($t_fmt,localtime());
71 }
72
73 my $hsn_cache;
74
75 sub get_backup_id($$$) {
76 my ($host, $share, $num) = @_;
77
78 my $key = "$host $share $num";
79 return $hsn_cache->{$key} if ($hsn_cache->{$key});
80
81 my $sth = $dbh->prepare(qq{
82 SELECT
83 backups.id
84 FROM backups
85 INNER JOIN shares ON backups.shareID=shares.ID
86 INNER JOIN hosts ON backups.hostID = hosts.ID
87 where hosts.name = ? and shares.name = ? and backups.num = ?
88 });
89 $sth->execute($host, $share, $num);
90 my ($id) = $sth->fetchrow_array;
91
92 $hsn_cache->{"$host $share $num"} = $id;
93
94 print STDERR "# $host $share $num == $id\n" if ($opt{d});
95
96 return $id;
97 }
98
99
100 sub tar_check($$$$) {
101 my ($host,$share,$num,$filename) = @_;
102
103 sub check_part {
104 my ($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items) = @_;
105 my $backup_id = get_backup_id($host, $share, $num);
106 my $sth_md5 = $dbh->prepare(qq{
107 select
108 id, tar_size, size, md5, items
109 from backup_parts
110 where backup_id = ? and part_nr = ?
111 });
112
113 $sth_md5->execute($backup_id, $part_nr);
114
115 if (my $row = $sth_md5->fetchrow_hashref) {
116 return if (
117 $row->{tar_size} == $tar_size &&
118 $row->{size} == $size &&
119 $row->{md5} eq $md5 &&
120 $row->{items} == $items
121 );
122 print STDERR "# deleting invalid row $row->{id}\n" if ($opt{d});
123 $dbh->do(qq{ delete from backup_parts where id = $row->{id} });
124 }
125 print STDERR "# inserting new backup_part row\n";
126 my $sth_insert = $dbh->prepare(qq{
127 insert into backup_parts (
128 backup_id,
129 part_nr,
130 tar_size,
131 size,
132 md5,
133 items
134 ) values (?,?,?,?,?,?)
135 });
136
137 $sth_insert->execute($backup_id, $part_nr, $tar_size, $size, $md5, $items);
138 $dbh->commit;
139 }
140
141 if ($debug) {
142 print STDERR " {{ CHECK: ${host}:${share}#${num} and $filename";
143 } else {
144 print " check";
145 }
146
147 my @tar_parts;
148
149 if (-d "$tar_dir/$filename") {
150 print STDERR " multi-part" if ($opt{d});
151 opendir(my $dir, "$tar_dir/$filename") || die "can't readdir $tar_dir/$filename: $!";
152 @tar_parts = map { my $p = $_; $p =~ s#^#${filename}/#; $p } grep { !/^\./ && !/md5/ && -f "$tar_dir/$filename/$_" } readdir($dir);
153 closedir($dir);
154 } else {
155 push @tar_parts, "${filename}.tar.gz";
156 }
157
158 print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d});
159
160 my $same = 1;
161 my @tar_files;
162
163 my $backup_part;
164
165 print " reading";
166
167 foreach my $tarfilename (@tar_parts) {
168
169 print STDERR " $tarfilename" if ($debug);
170
171 my $path = "$tar_dir/$tarfilename";
172 my $md5_path = $path;
173 $md5_path =~ s/\.tar\.gz$/.md5/ || die "can't create md5 filename from $md5_path";
174 if (! -e $md5_path) {
175 print ", creating md5";
176 system( $bin->{md5sum} . " $path > $md5_path") == 0 or die "can't create md5 $path: $!";
177 }
178
179 my $md5 = read_file( $md5_path ) || die "can't read md5sum file $md5_path: $!";
180
181 my $part_nr = 1;
182 $part_nr = $1 if ($tarfilename =~ m#/(\d+)\.tar\.gz#);
183
184 my $size = (stat( "$tar_dir/$tarfilename" ))[7] || die "can't stat $tar_dir/$tarfilename";
185
186 open(my $fh, "gzip -cd $tar_dir/$tarfilename |") or die "can't open $tar_dir/$tarfilename: $!";
187 binmode($fh);
188 my $tar = Archive::Tar::Streamed->new($fh);
189
190 my $tar_size = 0;
191 my $items = 0;
192
193 while(my $entry = $tar->next) {
194 push @tar_files, $entry->name;
195 $items++;
196 $tar_size += $entry->size;
197 }
198
199 if ($tar_size > $Conf{MaxArchiveFileSize}) {
200 print STDERR " part too big $tar_size > $Conf{MaxArchiveFileSize} }}" if ($debug);
201 $same = 0;
202 last;
203 } elsif ($size > $Conf{MaxArchiveSize}) {
204 print STDERR " part bigger than media $size > $Conf{MaxArchiveSize} }}" if ($debug);
205 $same = 0;
206 last;
207 }
208
209 check_part($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items);
210 }
211
212 # short-cut and exit;
213 return $same unless($same);
214
215 @tar_files = sort @tar_files;
216 print STDERR " ",($#tar_files + 1), " files" if ($debug);
217
218 print STDERR ", database" if ($debug);
219
220 my $sth = $dbh->prepare(qq{
221 SELECT path,type
222 FROM files
223 JOIN shares on shares.id = shareid
224 JOIN hosts on hosts.id = shares.hostid
225 WHERE hosts.name = ? and shares.name = ? and backupnum = ?
226 });
227 $sth->execute($host, $share, $num);
228 my @db_files;
229 while( my $row = $sth->fetchrow_hashref ) {
230
231 my $path = $row->{'path'} || die "no path?";
232 $path =~ s#^/#./#;
233 $path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR);
234 push @db_files, $path;
235 }
236
237 print STDERR " ",($#db_files + 1), " files, diff" if ($debug);
238
239 @db_files = sort @db_files;
240
241 if ($#tar_files != $#db_files) {
242 $same = 0;
243 print STDERR " NUMBER" if ($debug);
244 } else {
245 my $diff = Algorithm::Diff->new(\@tar_files, \@db_files);
246 while ( $diff->Next() ) {
247 next if $diff->Same();
248 $same = 0;
249 print "< $_\n" for $diff->Items(1);
250 print "> $_\n" for $diff->Items(2);
251 }
252 }
253
254 print " ",($same ? 'ok' : 'DIFFERENT');
255 print STDERR " }} " if ($debug);
256
257 return $same;
258 }
259
260
261 #----- main
262
263 my $sth = $dbh->prepare( qq{
264
265 select
266 backups.id as backup_id,
267 hosts.name as host,
268 shares.name as share,
269 backups.num as num,
270 inc_size,
271 parts
272 from backups
273 join shares on backups.hostid = shares.hostid
274 and shares.id = backups.shareid
275 join hosts on shares.hostid = hosts.id
276 where not inc_deleted
277 order by backups.date
278
279 } );
280
281 $sth->execute();
282 my $num_backups = $sth->rows;
283 my $curr_backup = 1;
284
285 while (my $row = $sth->fetchrow_hashref) {
286 my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});
287
288 # this will return -1 if file doesn't exist
289 my $size = BackupPC::SearchLib::get_tgz_size_by_name($tar_file);
290
291 print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d});
292
293 if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} == $size) {
294 if ($check) {
295 tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next;
296 } else {
297 next;
298 }
299 }
300
301 print curr_time, " $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file";
302 $curr_backup++;
303
304 my $t = time();
305
306 # re-create archive?
307 my $cmd = qq{ $tarIncCreate -h "$row->{'host'}" -s "$row->{'share'}" -n $row->{'num'} -f };
308 print STDERR "## $cmd\n" if ($debug);
309
310 if (system($cmd) != 0) {
311 print STDERR " FAILED";
312 }
313
314 print ", dur: ",fmt_time(time() - $t), "\n";
315
316 $dbh->commit;
317
318 }
319
320 undef $sth;
321 $dbh->disconnect;

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