LIJINFENG / MYDan-0.1.62 / dan / node / bin / purge 

            

              
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#!/usr/bin/env perl
use strict;
use warnings;
use YAML::XS;
use FindBin qw( $Bin );
use MYDan::Node;
use MYDan::Node::DBI::Root;
use MYDan::Util::OptConf;
$| ++;
$MYDan::Util::OptConf::THIS = 'node';
=head1 SYNOPSIS
Delete node databases entries
 $0 --cluster clusters [--table table] [--key nodes] [--value values]
=cut
my $option = MYDan::Util::OptConf->load( base => $Bin );
my %o = $option->get( qw( cluster=s table=s key=s value=s ) )->dump();
$option->assert( 'cluster' );
my %range = $option->dump( 'range' );
my $range = MYDan::Node->new( %range );
my ( $drop, %query ) = 1;
for my $index ( qw( key value ) )
{
    next unless defined $o{$index};
    $drop = 0;
    next unless my @list = $range->load( $o{$index} )->list();
    $query{$index} = [ 1 => @list ];
}
for my $cluster ( $range->load( $o{cluster} || [] )->list() )
{
    unless( $o{table} )
    {
        unlink File::Spec->join( $o{root}, $cluster );
        next;
    }
    my $db = MYDan::Node::DBI::Root->new( File::Spec->join( $o{root}, $cluster ) );
    for my $table ( $range->load( $o{table} || [] )->list() )
    {
        if ( %query ) { $db->delete( $table, %query ) }
        elsif ( $drop ) { $db->drop( $table ) }
    }
}
exit 0;