File:
[LON-CAPA] /
loncom /
debugging_tools /
dump_db.pl
Revision
1.5:
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Fri Mar 18 21:36:49 2005 UTC (19 years, 4 months ago) by
albertel
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CVS tags:
version_2_1_X,
version_2_1_3,
version_2_1_2,
version_2_1_1,
version_2_1_0,
version_2_0_X,
version_2_0_99_1,
version_2_0_2,
version_2_0_1,
version_2_0_0,
version_1_99_3,
version_1_99_2,
version_1_99_1_tmcc,
version_1_99_1,
version_1_99_0_tmcc,
version_1_99_0,
HEAD
- don't wann pas arugments to these functions
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: dump_db.pl,v 1.5 2005/03/18 21:36:49 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 Data::Dumper;
36: use Storable qw(thaw);
37:
38: #
39: # Options
40: my ($unesc,$help,$localize_times) = (0,0,0);
41: GetOptions("unescape" => \$unesc,
42: "u" => \$unesc,
43: "t" => \$localize_times,
44: "help" => \$help);
45:
46: #
47: # Help them out if they ask for it
48: if ($help) {
49: print <<END;
50: dump_db.pl - dump GDBM_File databases to stdout.
51: Specify the database filenames on the command line.
52: Specify --unescape to have all the keys and values unescaped from every
53: database.
54: Options:
55: --help Display this help.
56: --unescape Unescape the keys and values before printing them out.
57: -u Same as --unescape
58: -t Localize times when possible (human readable times)
59: Examples:
60: dump_db.pl mydata.db
61: dump_db.pl mydata.db yourdata.db ourdata.db theirdata.db
62: dump_db.pl --unescape \*db
63: END
64: exit;
65: }
66:
67: #
68: # Loop through ARGV getting files.
69: while (my $fname = shift) {
70: my %db;
71: if (! tie(%db,'GDBM_File',$fname,&GDBM_READER(),0640)) {
72: warn "Unable to tie to $fname";
73: next;
74: }
75: while (my ($key,$value) = each(%db)) {
76: if ($value =~ s/^__FROZEN__//) {
77: $value = thaw(&unescape($value));
78: }
79: if ($unesc) {
80: $key = &unescape($key);
81: $value = &unescape($value) if (! ref($value));
82: }
83: if ($localize_times && ! ref($value)) {
84: $value =~ s/([0-9]{10,10})/localtime($1)/ge;
85: }
86: print "$key = ".(ref($value)?Dumper($value):$value)."\n";
87: }
88: untie %db;
89: }
90: exit;
91:
92: ######################################
93: sub unescape {
94: my $str=shift;
95: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
96: return $str;
97: }
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