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File:  [LON-CAPA] / loncom / debugging_tools / clean_db.pl
Revision 1.5: download - view: text, annotated - select for diffs
Sat Aug 16 14:36:09 2008 UTC (15 years, 8 months ago) by raeburn
Branches: MAIN
CVS tags: version_2_9_X, version_2_9_99_0, version_2_9_1, version_2_9_0, version_2_8_X, version_2_8_99_1, version_2_8_99_0, version_2_8_2, version_2_8_1, version_2_8_0, version_2_7_X, version_2_7_99_1, version_2_7_99_0, version_2_7_1, version_2_7_0, version_2_12_X, version_2_11_X, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, version_2_11_3_uiuc, version_2_11_3_msu, version_2_11_3, version_2_11_2_uiuc, version_2_11_2_msu, version_2_11_2_educog, version_2_11_2, version_2_11_1, version_2_11_0_RC3, version_2_11_0_RC2, version_2_11_0_RC1, version_2_11_0, version_2_10_X, version_2_10_1, version_2_10_0_RC2, version_2_10_0_RC1, version_2_10_0, loncapaMITrelate_1, language_hyphenation_merge, language_hyphenation, bz6209-base, bz6209, bz5969, bz2851, PRINT_INCOMPLETE_base, PRINT_INCOMPLETE, HEAD, GCI_3, GCI_2, GCI_1, BZ5971-printing-apage, BZ5434-fox, BZ4492-merge, BZ4492-feature_horizontal_radioresponse, BZ4492-feature_Support_horizontal_radioresponse, BZ4492-Support_horizontal_radioresponse
Fix syntax errors introduced by rev 1.4 "speed up".

    1: #!/usr/bin/perl -w
    2: #
    3: # The LearningOnline Network
    4: #
    5: # dump_db.pl - dump a GDBM database to standard output, unescaping if asked to.
    6: #
    7: # $Id: clean_db.pl,v 1.5 2008/08/16 14:36:09 raeburn Exp $
    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 Getopt::Long;
   34: use GDBM_File;
   35: use lib '/home/httpd/lib/perl/';
   36: use LONCAPA;
   37: 
   38: #
   39: # Options
   40: my ($unesc,$help,$localize_times) = (0,0,0);
   41: GetOptions(     "help"     => \$help);
   42: 
   43: #
   44: # Help them out if they ask for it
   45: if ($help) {
   46:     print <<END;
   47: clean_db.pl - clean a db of a certain key
   48: Specify the database filename on the command line.
   49: And the Key to remove.
   50: Options:
   51:    --help     Display this help.
   52:    -t        Localize times when possible (human readable times)
   53: Example: 
   54:     dump_db.pl mydata.db "error:"
   55: END
   56:     exit;
   57: }
   58: 
   59: my $fname = shift;
   60: my $key_to_remove = shift;
   61: 
   62: my $dbref =&LONCAPA::locking_hash_tie($fname,&GDBM_WRCREAT());
   63: 
   64: if (! $dbref) {
   65:     warn("Unable to tie to $fname");
   66:     exit;
   67: }
   68: if (exists($dbref->{$key_to_remove})) {
   69:     delete($dbref->{$key_to_remove});
   70:     if ($fname =~ m|/nohist_[^/]*.db|) { exit; }
   71:     my $hist=$fname;
   72:     $hist=~s/\.db$/.hist/;
   73:     open(HIST,">>$hist");
   74:     print HIST ("D:".time.":$key_to_remove\n");
   75:     close(HIST);
   76: }
   77: exit;
   78:
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