File:
[LON-CAPA] /
loncom /
debugging_tools /
clean_db.pl
Revision
1.4:
download - view:
text,
annotated -
select for diffs
Tue Apr 3 00:59:45 2007 UTC (17 years, 5 months ago) by
albertel
Branches:
MAIN
CVS tags:
version_2_6_X,
version_2_6_99_1,
version_2_6_99_0,
version_2_6_3,
version_2_6_2,
version_2_6_1,
version_2_6_0,
version_2_5_X,
version_2_5_99_1,
version_2_5_99_0,
version_2_5_2,
version_2_5_1,
version_2_5_0,
version_2_4_X,
version_2_4_99_0,
version_2_4_2,
version_2_4_1,
version_2_4_0,
version_2_3_99_0,
HEAD
- 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 1.4 2007/04/03 00:59:45 albertel 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->{$key});
70: if ($fname =~ m|/nohist_[^/]*.db|) { exit; }
71: my $hist=$fname;
72: $hist=~s/\.db$/.hist/;
73: open(HIST,">>$hist");
74: print HIST ("D:".time.":$key\n");
75: close(HIST);
76: }
77: exit;
78:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>