mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-01 18:25:59 +00:00
71 lines
2.3 KiB
Perl
71 lines
2.3 KiB
Perl
# This program is copyright 2009-2011 Percona Ireland Ltd.
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# Feedback and improvements are welcome.
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#
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# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
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# systems, you can issue `man perlgpl' or `man perlartistic' to read these
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# licenses.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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# Place, Suite 330, Boston, MA 02111-1307 USA.
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# ###########################################################################
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# Outfile package
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# ###########################################################################
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{
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# Package: Outfile
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# Outfile writes rows to a file in SELECT INTO OUTFILE format.
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package Outfile;
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use strict;
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use warnings FATAL => 'all';
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use English qw(-no_match_vars);
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use constant PTDEBUG => $ENV{PTDEBUG} || 0;
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sub new {
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my ( $class, %args ) = @_;
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my $self = {};
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return bless $self, $class;
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}
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# Print out in SELECT INTO OUTFILE format.
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# $rows is an arrayref from DBI::selectall_arrayref().
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sub write {
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my ( $self, $fh, $rows ) = @_;
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foreach my $row ( @$rows ) {
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print $fh escape($row), "\n"
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or die "Cannot write to outfile: $OS_ERROR\n";
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}
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return;
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}
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# Formats a row the same way SELECT INTO OUTFILE does by default. This is
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# described in the LOAD DATA INFILE section of the MySQL manual,
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# http://dev.mysql.com/doc/refman/5.0/en/load-data.html
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sub escape {
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my ( $row ) = @_;
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return join("\t", map {
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s/([\t\n\\])/\\$1/g if defined $_; # Escape tabs etc
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defined $_ ? $_ : '\N'; # NULL = \N
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} @$row);
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}
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sub _d {
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my ($package, undef, $line) = caller 0;
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@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
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map { defined $_ ? $_ : 'undef' }
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@_;
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print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
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}
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1;
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}
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# ###########################################################################
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# End Outfile package
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# ###########################################################################
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