Return to excise_from_db.pl CVS log

Up to [LON-CAPA] / loncom / debugging_tools

Annotation of loncom/debugging_tools/excise_from_db.pl, revision 1.3

1.1       matthew     1: #!/usr/bin/perl -w
                      2: #
                      3: # The LearningOnline Network
                      4: #
                      5: # excise_from_db.pl - Remove a key from a db file.
                      6: #
1.3     ! albertel    7: # $Id: excise_from_db.pl,v 1.2 2005/03/19 00:39:54 matthew Exp $
1.1       matthew     8: #
                      9: # Copyright Michigan State University Board of Trustees
                     10: #
                     11: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                     12: #
                     13: # LON-CAPA is free software; you can redistribute it and/or modify
                     14: # it under the terms of the GNU General Public License as published by
                     15: # the Free Software Foundation; either version 2 of the License, or
                     16: # (at your option) any later version.
                     17: #
                     18: # LON-CAPA is distributed in the hope that it will be useful,
                     19: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     20: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     21: # GNU General Public License for more details.
                     22: #
                     23: # You should have received a copy of the GNU General Public License
                     24: # along with LON-CAPA; if not, write to the Free Software
                     25: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     26: #
                     27: # /home/httpd/html/adm/gpl.txt
                     28: #
                     29: # http://www.lon-capa.org/
                     30: #
                     31: #################################################
                     32: use strict;
                     33: use GDBM_File;
1.3     ! albertel   34: use lib '/home/httpd/lib/perl/';
        !            35: use LONCAPA;
1.1       matthew    36: 
                     37: #
                     38: # Options
                     39: my $fname = shift;
                     40: my $key = shift;
                     41: 
1.2       matthew    42: if (! defined($fname) || ! defined($key)) {
                     43:     print "Specify db file and key on command line.".$/.
                     44:         'excise_from_db.pl roles.db "a very long key"'.$/;
                     45:     exit;
                     46: }
                     47: 
1.3     ! albertel   48: my $dbref =&LONCAPA::locking_hash_tie($fname,&GDBM_WRCREAT());
        !            49: if (! $dbref) {
1.1       matthew    50:     warn "Unable to tie to $fname";
                     51:     next;
                     52: }
1.3     ! albertel   53: delete($dbref->{$key});
        !            54: delete($dbref->{&escape($key)});
1.1       matthew    55: 
1.3     ! albertel   56: &LONCAPA::locking_hash_untie($dbref);
1.1       matthew    57: 
                     58: exit;
                     59: