#!/usr/bin/perl
#
# Copyright (c) 2002 Steve Slaven, All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
# A database exporter/importer for using the DB_File and tie()
use DB_File;
use Getopt::Std;
getopts( 'ieh', \%o );
die( qq{
dbexim v2.0
DB file export/import
Author: Steve Slave - http://hoopajoo.net
Usage: $0 [-hie] DBFILE
-i import STDIN into DBFILE
-e export DBFILE to STDOUT
Generates a plain text output of dbfile so that it can be imported
on another platform. Doesn't use Data::Dumper because that requires
reading the whole file in to memory which is bad for large db files.
} ) if $o{ h };
die( 'Must use -i or -e' ) unless( $o{ i } || $o{ e } );
my $dbfile = shift( @ARGV );
tie %db, 'DB_File', $dbfile || die( "Couldn't tie '$dbfile': $!" );
if( $o{ i } ) {
# Import
print STDERR "Importing $txfile into $dbfile...\n";
while( $line = ) {
chomp( $line );
( $k, $v ) = split( /:/, $line );
$k = decode( $k );
$v = decode( $v );
print "$k => $v\n";
$db{ $k } = $v;
}
}elsif( $o{ e } ) {
# Export
$ref = \%db;
print STDERR "Exporting $dbfile to $txfile...\n";
while( ( $k, $v ) = each( %db ) ) {
print encode( $k ), ":", encode( $v ), "\n";
}
}
sub encode {
return( join( ",", map { ord( $_ ) } split( //, shift() ) ) );
}
sub decode {
return( join( "", map { chr( $_ ) } split( /,/, shift() ) ) );
}