Annotation of /trunk/bin/BackupPC_incPartsUpdate

#!/usr/local/bin/perl -w

use strict;
use lib "__INSTALLDIR__/lib";

use DBI;
use BackupPC::Lib;
use BackupPC::View;
use BackupPC::Attrib qw/:all/;
use Data::Dumper;
use Time::HiRes qw/time/;
use POSIX qw/strftime/;
use Cwd qw/abs_path/;
use File::Which;
use Archive::Tar::Streamed;
use Algorithm::Diff;
use Getopt::Std;
use File::Slurp;

my $bpc = BackupPC::Lib->new || die "can't create BackupPC::Lib";
my %Conf = $bpc->Conf();

use BackupPC::SearchLib;
%BackupPC::SearchLib::Conf = %Conf;

my $path = abs_path($0);
$path =~ s#/[^/]+$#/#;
my $tarIncCreate = $path .= 'BackupPC_tarIncCreate';

die "can't find $tarIncCreate: $!\n" unless (-x $tarIncCreate);

my $bin;
foreach my $c (qw/gzip md5sum/) {
        $bin->{$c} = which($c) || die "$0 needs $c, install it\n";
}

my %opt;
getopts("cd", \%opt );

my $debug = $opt{d};
my $check = $opt{c} && print STDERR "NOTICE: tar archive check forced\n";

$|=1;

my $start_t = time();

my $t_fmt = '%Y-%m-%d %H:%M:%S';

my $dsn = $Conf{SearchDSN} || die "Need SearchDSN in config.pl\n";
my $user = $Conf{SearchUser} || '';

my $dbh = DBI->connect($dsn, $user, "", { RaiseError => 1, AutoCommit => 0 });

my $tar_dir = $Conf{InstallDir}.'/'.$Conf{GzipTempDir};

die "problem with $tar_dir, check GzipTempDir in configuration\n" unless (-d $tar_dir && -w $tar_dir);

#---- subs ----

sub fmt_time {
        my $t = shift || return;
        my $out = "";
        my ($ss,$mm,$hh) = gmtime($t);
        $out .= "${hh}h" if ($hh);
        $out .= sprintf("%02d:%02d", $mm,$ss);
        return $out;
}

sub curr_time {
        return strftime($t_fmt,localtime());
}

my $hsn_cache;

sub get_backup_id($$$) {
        my ($host, $share, $num) = @_;

        my $key = "$host $share $num";
        return $hsn_cache->{$key} if ($hsn_cache->{$key});

        my $sth = $dbh->prepare(qq{
                SELECT 
                        backups.id
                FROM backups 
                INNER JOIN shares       ON backups.shareID=shares.ID
                INNER JOIN hosts        ON backups.hostID = hosts.ID
                where hosts.name = ? and shares.name = ? and backups.num = ?
        });
        $sth->execute($host, $share, $num);
        my ($id) = $sth->fetchrow_array;

        $hsn_cache->{"$host $share $num"} = $id;

        print STDERR "# $host $share $num == $id\n" if ($opt{d});

        return $id;
}


sub tar_check($$$$) {
        my ($host,$share,$num,$filename) = @_;

        my $t = time();
        print curr_time, " check $host:$share#$num -> $filename";

        sub check_part {
                my ($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items) = @_;
                my $backup_id = get_backup_id($host, $share, $num);
                my $sth_md5 = $dbh->prepare(qq{
                        select
                                id, tar_size, size, md5, items
                        from backup_parts
                        where backup_id = ? and part_nr = ?
                });

                $sth_md5->execute($backup_id, $part_nr);

                if (my $row = $sth_md5->fetchrow_hashref) {
                        return if (
                                $row->{tar_size} >= $tar_size &&
                                $row->{size} == $size &&
                                $row->{md5} eq $md5 &&
                                $row->{items} == $items
                        );
                        print ", deleting invalid backup_parts $row->{id}";
                        $dbh->do(qq{ delete from backup_parts where id = $row->{id} });
                }
                print ", inserting new";
                my $sth_insert = $dbh->prepare(qq{
                        insert into backup_parts (
                                backup_id,
                                part_nr,
                                tar_size,
                                size,
                                md5,
                                items
                        ) values (?,?,?,?,?,?)
                });

                $sth_insert->execute($backup_id, $part_nr, $tar_size, $size, $md5, $items);
                $dbh->commit;
        }

        my @tar_parts;

        if (-d "$tar_dir/$filename") {
                print ", multi-part";
                opendir(my $dir, "$tar_dir/$filename") || die "can't readdir $tar_dir/$filename: $!";
                @tar_parts = map { my $p = $_; $p =~ s#^#${filename}/#; $p } grep { !/^\./ && !/md5/ && -f "$tar_dir/$filename/$_" } readdir($dir);
                closedir($dir);
        } else {
                push @tar_parts, "${filename}.tar.gz";
        }

        print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d});

        my $same = 1;
        my @tar_files;

        my $backup_part;

        print " reading" if ($opt{d});

        foreach my $tarfilename (@tar_parts) {

                print "\n\t- $tarfilename";

                my $size = (stat( "$tar_dir/$tarfilename" ))[7] || die "can't stat $tar_dir/$tarfilename";

                if ($size > $Conf{MaxArchiveSize}) {
                        print ", part bigger than media $size > $Conf{MaxArchiveSize}\n";
                        return 0;
                }

                print ", $size bytes";

                my $path = "$tar_dir/$tarfilename";

                open(my $fh, "gzip -cd $tar_dir/$tarfilename |") or die "can't open $tar_dir/$tarfilename: $!";
                binmode($fh);
                my $tar = Archive::Tar::Streamed->new($fh);

                my $tar_size = 0;
                my $items = 0;

                while(my $entry = $tar->next) {
                        push @tar_files, $entry->name;
                        $items++;
                        $tar_size += $entry->size;

                        if ($tar_size > $Conf{MaxArchiveFileSize}) {
                                print ", part $tarfilename is too big $tar_size > $Conf{MaxArchiveFileSize}\n";
                                return 0;
                        }

                }

                print ", $items items";

                #
                # check if md5 exists, and if not, create one
                #

                my $md5_path = $path;
                $md5_path =~ s/\.tar\.gz$/.md5/ || die "can't create md5 filename from $md5_path";
                if (! -e $md5_path || -z $md5_path) {
                        print ", creating md5";
                        system( $bin->{md5sum} . " $path > $md5_path") == 0 or die "can't create md5 $path: $!";
                } else {
                        ## FIXME check if existing md5 is valid
                }

                my $md5 = read_file( $md5_path ) || die "can't read md5sum file $md5_path: $!";
                $md5 =~ s#\s.*$##;

                # extract part number from filename
                my $part_nr = 1;
                $part_nr = $1 if ($tarfilename =~ m#/(\d+)\.tar\.gz#);

                #
                # finally, check if backup_parts table in database is valid
                #

                check_part($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items);
        }

        # short-cut and exit;
        return $same unless($same);

        @tar_files = sort @tar_files;
        print "\n\t",($#tar_files + 1), " tar files";

        my $sth = $dbh->prepare(qq{
                SELECT path,type
                FROM files
                JOIN shares on shares.id = shareid
                JOIN hosts on hosts.id = shares.hostid
                WHERE hosts.name = ? and shares.name = ? and backupnum = ?
        });
        $sth->execute($host, $share, $num);
        my @db_files;
        while( my $row = $sth->fetchrow_hashref ) {

                my $path = $row->{'path'} || die "no path?";
                $path =~ s#^/#./#;
                $path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR);
                push @db_files, $path;
        }

        print " ",($#db_files + 1), " database files, diff";

        @db_files = sort @db_files;

        if ($#tar_files != $#db_files) {
                $same = 0;
                print " NUMBER";
        } else {
                my $diff = Algorithm::Diff->new(\@tar_files, \@db_files);
                while ( $diff->Next() ) {
                        next if $diff->Same();
                        $same = 0;
                        print "< $_\n" for $diff->Items(1);
                        print "> $_\n" for $diff->Items(2);
                }
        }

        print " ",($same ? 'ok' : 'DIFFERENT'),
                ", dur: ",fmt_time(time() - $t), "\n";

        return $same;
}


#----- main

my $sth = $dbh->prepare( qq{
        
select
        backups.id as backup_id,
        hosts.name as host,
        shares.name as share,
        backups.num as num,
        inc_size,
        parts
from backups
        join shares on backups.hostid = shares.hostid
                and shares.id = backups.shareid
        join hosts on shares.hostid = hosts.id
where not inc_deleted
order by backups.date

} );

$sth->execute();
my $num_backups = $sth->rows;
my $curr_backup = 1;

while (my $row = $sth->fetchrow_hashref) {

        $curr_backup++;

        my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});

        # this will return -1 if file doesn't exist
        my $size = BackupPC::SearchLib::get_tgz_size_by_name($tar_file);

        print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d});

        if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} >= $size) {
                if ($check) {
                        tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next;
                } else {
                        next;
                }
        }

        print curr_time, " creating $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file";

        my $t = time();

        # re-create archive?
        my $cmd = qq{ $tarIncCreate -h "$row->{'host'}" -s "$row->{'share'}" -n $row->{'num'} -f };
        print STDERR "## $cmd\n" if ($debug);

        if (system($cmd) != 0) {
                print STDERR " FAILED";
        }

        print ", dur: ",fmt_time(time() - $t), "\n";

        $dbh->commit;

}

undef $sth;
$dbh->disconnect;
1	dpavlin	157	#!/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	dpavlin	214	use BackupPC::Attrib qw/:all/;
10	dpavlin	157	use Data::Dumper;
11			use Time::HiRes qw/time/;
12			use POSIX qw/strftime/;
13			use Cwd qw/abs_path/;
14	dpavlin	201	use File::Which;
15	dpavlin	215	use Archive::Tar::Streamed;
16	dpavlin	214	use Algorithm::Diff;
17			use Getopt::Std;
18	dpavlin	264	use File::Slurp;
19	dpavlin	157
20	dpavlin	230	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	dpavlin	157	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	dpavlin	201	my $bin;
33	dpavlin	254	foreach my $c (qw/gzip md5sum/) {
34	dpavlin	201	$bin->{$c} = which($c) \|\| die "$0 needs $c, install it\n";
35			}
36
37	dpavlin	214	my %opt;
38			getopts("cd", \%opt );
39	dpavlin	201
40	dpavlin	214	my $debug = $opt{d};
41			my $check = $opt{c} && print STDERR "NOTICE: tar archive check forced\n";
42
43	dpavlin	157	$\|=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	dpavlin	264	my $hsn_cache;
74
75			sub get_backup_id($$$) {
76			my ($host, $share, $num) = @_;
77
78			my $key = "$host $share $num";
79			return $hsn_cache->{$key} if ($hsn_cache->{$key});
80
81			my $sth = $dbh->prepare(qq{
82			SELECT
83			backups.id
84			FROM backups
85			INNER JOIN shares ON backups.shareID=shares.ID
86			INNER JOIN hosts ON backups.hostID = hosts.ID
87			where hosts.name = ? and shares.name = ? and backups.num = ?
88			});
89			$sth->execute($host, $share, $num);
90			my ($id) = $sth->fetchrow_array;
91
92			$hsn_cache->{"$host $share $num"} = $id;
93
94			print STDERR "# $host $share $num == $id\n" if ($opt{d});
95
96			return $id;
97			}
98
99
100	dpavlin	214	sub tar_check($$$$) {
101			my ($host,$share,$num,$filename) = @_;
102
103	dpavlin	270	my $t = time();
104			print curr_time, " check $host:$share#$num -> $filename";
105
106	dpavlin	264	sub check_part {
107			my ($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items) = @_;
108			my $backup_id = get_backup_id($host, $share, $num);
109			my $sth_md5 = $dbh->prepare(qq{
110			select
111			id, tar_size, size, md5, items
112			from backup_parts
113			where backup_id = ? and part_nr = ?
114			});
115
116			$sth_md5->execute($backup_id, $part_nr);
117
118			if (my $row = $sth_md5->fetchrow_hashref) {
119			return if (
120	dpavlin	265	$row->{tar_size} >= $tar_size &&
121	dpavlin	264	$row->{size} == $size &&
122			$row->{md5} eq $md5 &&
123			$row->{items} == $items
124			);
125	dpavlin	270	print ", deleting invalid backup_parts $row->{id}";
126	dpavlin	264	$dbh->do(qq{ delete from backup_parts where id = $row->{id} });
127			}
128	dpavlin	270	print ", inserting new";
129	dpavlin	264	my $sth_insert = $dbh->prepare(qq{
130			insert into backup_parts (
131			backup_id,
132			part_nr,
133			tar_size,
134			size,
135			md5,
136			items
137			) values (?,?,?,?,?,?)
138			});
139
140			$sth_insert->execute($backup_id, $part_nr, $tar_size, $size, $md5, $items);
141			$dbh->commit;
142			}
143
144	dpavlin	254	my @tar_parts;
145
146			if (-d "$tar_dir/$filename") {
147	dpavlin	270	print ", multi-part";
148	dpavlin	254	opendir(my $dir, "$tar_dir/$filename") \|\| die "can't readdir $tar_dir/$filename: $!";
149			@tar_parts = map { my $p = $_; $p =~ s#^#${filename}/#; $p } grep { !/^\./ && !/md5/ && -f "$tar_dir/$filename/$_" } readdir($dir);
150			closedir($dir);
151			} else {
152			push @tar_parts, "${filename}.tar.gz";
153	dpavlin	214	}
154
155	dpavlin	256	print " [parts: ",join(", ", @tar_parts),"]" if ($opt{d});
156
157			my $same = 1;
158	dpavlin	254	my @tar_files;
159	dpavlin	214
160	dpavlin	264	my $backup_part;
161
162	dpavlin	268	print " reading" if ($opt{d});
163	dpavlin	254
164			foreach my $tarfilename (@tar_parts) {
165
166	dpavlin	270	print "\n\t- $tarfilename";
167	dpavlin	254
168	dpavlin	269	my $size = (stat( "$tar_dir/$tarfilename" ))[7] \|\| die "can't stat $tar_dir/$tarfilename";
169
170			if ($size > $Conf{MaxArchiveSize}) {
171	dpavlin	274	print ", part bigger than media $size > $Conf{MaxArchiveSize}\n";
172			return 0;
173	dpavlin	254	}
174
175	dpavlin	270	print ", $size bytes";
176
177	dpavlin	269	my $path = "$tar_dir/$tarfilename";
178	dpavlin	264
179	dpavlin	254	open(my $fh, "gzip -cd $tar_dir/$tarfilename \|") or die "can't open $tar_dir/$tarfilename: $!";
180			binmode($fh);
181			my $tar = Archive::Tar::Streamed->new($fh);
182
183	dpavlin	264	my $tar_size = 0;
184			my $items = 0;
185	dpavlin	256
186	dpavlin	254	while(my $entry = $tar->next) {
187			push @tar_files, $entry->name;
188	dpavlin	264	$items++;
189			$tar_size += $entry->size;
190	dpavlin	269
191			if ($tar_size > $Conf{MaxArchiveFileSize}) {
192	dpavlin	270	print ", part $tarfilename is too big $tar_size > $Conf{MaxArchiveFileSize}\n";
193	dpavlin	274	return 0;
194	dpavlin	269	}
195
196	dpavlin	254	}
197	dpavlin	256
198	dpavlin	270	print ", $items items";
199
200	dpavlin	269	#
201			# check if md5 exists, and if not, create one
202			#
203
204			my $md5_path = $path;
205			$md5_path =~ s/\.tar\.gz$/.md5/ \|\| die "can't create md5 filename from $md5_path";
206			if (! -e $md5_path \|\| -z $md5_path) {
207			print ", creating md5";
208			system( $bin->{md5sum} . " $path > $md5_path") == 0 or die "can't create md5 $path: $!";
209	dpavlin	270	} else {
210			## FIXME check if existing md5 is valid
211	dpavlin	256	}
212	dpavlin	264
213	dpavlin	269	my $md5 = read_file( $md5_path ) \|\| die "can't read md5sum file $md5_path: $!";
214			$md5 =~ s#\s.*$##;
215
216			# extract part number from filename
217			my $part_nr = 1;
218			$part_nr = $1 if ($tarfilename =~ m#/(\d+)\.tar\.gz#);
219
220			#
221			# finally, check if backup_parts table in database is valid
222			#
223
224	dpavlin	264	check_part($host, $share, $num, $part_nr, $tar_size, $size, $md5, $items);
225	dpavlin	215	}
226	dpavlin	254
227	dpavlin	256	# short-cut and exit;
228			return $same unless($same);
229
230	dpavlin	215	@tar_files = sort @tar_files;
231	dpavlin	270	print "\n\t",($#tar_files + 1), " tar files";
232	dpavlin	214
233			my $sth = $dbh->prepare(qq{
234			SELECT path,type
235			FROM files
236			JOIN shares on shares.id = shareid
237			JOIN hosts on hosts.id = shares.hostid
238			WHERE hosts.name = ? and shares.name = ? and backupnum = ?
239			});
240			$sth->execute($host, $share, $num);
241			my @db_files;
242			while( my $row = $sth->fetchrow_hashref ) {
243
244			my $path = $row->{'path'} \|\| die "no path?";
245			$path =~ s#^/#./#;
246			$path .= '/' if ($row->{'type'} == BPC_FTYPE_DIR);
247			push @db_files, $path;
248			}
249
250	dpavlin	270	print " ",($#db_files + 1), " database files, diff";
251	dpavlin	214
252			@db_files = sort @db_files;
253
254			if ($#tar_files != $#db_files) {
255			$same = 0;
256	dpavlin	270	print " NUMBER";
257	dpavlin	214	} else {
258			my $diff = Algorithm::Diff->new(\@tar_files, \@db_files);
259			while ( $diff->Next() ) {
260			next if $diff->Same();
261			$same = 0;
262			print "< $_\n" for $diff->Items(1);
263			print "> $_\n" for $diff->Items(2);
264			}
265			}
266
267	dpavlin	270	print " ",($same ? 'ok' : 'DIFFERENT'),
268			", dur: ",fmt_time(time() - $t), "\n";
269	dpavlin	214
270			return $same;
271			}
272
273
274	dpavlin	157	#----- main
275
276			my $sth = $dbh->prepare( qq{
277
278			select
279	dpavlin	158	backups.id as backup_id,
280	dpavlin	157	hosts.name as host,
281			shares.name as share,
282	dpavlin	192	backups.num as num,
283	dpavlin	196	inc_size,
284			parts
285	dpavlin	157	from backups
286			join shares on backups.hostid = shares.hostid
287			and shares.id = backups.shareid
288			join hosts on shares.hostid = hosts.id
289	dpavlin	192	where not inc_deleted
290	dpavlin	157	order by backups.date
291
292			} );
293
294	dpavlin	213	$sth->execute();
295			my $num_backups = $sth->rows;
296			my $curr_backup = 1;
297
298	dpavlin	157	while (my $row = $sth->fetchrow_hashref) {
299	dpavlin	271
300			$curr_backup++;
301
302	dpavlin	157	my $tar_file = BackupPC::SearchLib::getGzipName($row->{'host'}, $row->{'share'}, $row->{'num'});
303	dpavlin	192
304	dpavlin	194	# this will return -1 if file doesn't exist
305			my $size = BackupPC::SearchLib::get_tgz_size_by_name($tar_file);
306	dpavlin	192
307	dpavlin	253	print "# size: $size backup.size: ", $row->{inc_size},"\n" if ($opt{d});
308
309	dpavlin	266	if ( $row->{'inc_size'} != -1 && $size != -1 && $row->{'inc_size'} >= $size) {
310	dpavlin	256	if ($check) {
311			tar_check($row->{'host'}, $row->{'share'}, $row->{'num'}, $tar_file) && next;
312			} else {
313			next;
314			}
315	dpavlin	253	}
316
317	dpavlin	271	print curr_time, " creating $curr_backup/$num_backups ", $row->{'host'}, ":", $row->{'share'}, " #", $row->{'num'}, " -> $tar_file";
318	dpavlin	157
319			my $t = time();
320
321	dpavlin	194	# re-create archive?
322	dpavlin	254	my $cmd = qq{ $tarIncCreate -h "$row->{'host'}" -s "$row->{'share'}" -n $row->{'num'} -f };
323	dpavlin	253	print STDERR "## $cmd\n" if ($debug);
324	dpavlin	157
325	dpavlin	253	if (system($cmd) != 0) {
326			print STDERR " FAILED";
327	dpavlin	194	}
328	dpavlin	157
329	dpavlin	194	print ", dur: ",fmt_time(time() - $t), "\n";
330	dpavlin	158
331			$dbh->commit;
332
333	dpavlin	157	}
334
335			undef $sth;
336			$dbh->disconnect;