File:
[LON-CAPA] /
loncom /
metadata_database /
searchcat.pl
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Wed Jul 25 23:17:43 2007 UTC (17 years ago) by
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searchcat.pl
- Additional MySQL table to build: allusers
- &descend_tree() arguments changed. $dom added as first arg, and reference to %allusers hash added as last arg.
- %allusers keys are usernames for all users in the domain which are not courses.
- user information put into allusers MySQL table.
LONCAPA/lonmetadata.pm
- description of allusers table
- &update_metadata(), &lookup_metadata() and &delete_metadata() modified to allow more flexibility in the WHERE condition in the SQL query (no longer forced to be url = ).
- &process_allusers_data() added to add/modify the contents of the allusers table.
1: #!/usr/bin/perl
2: # The LearningOnline Network
3: # searchcat.pl "Search Catalog" batch script
4: #
5: # $Id: searchcat.pl,v 1.77 2007/07/25 23:17:43 raeburn Exp $
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29: ###
30:
31: =pod
32:
33: =head1 NAME
34:
35: B<searchcat.pl> - put authoritative filesystem data into sql database.
36:
37: =head1 SYNOPSIS
38:
39: Ordinarily this script is to be called from a loncapa cron job
40: (CVS source location: F<loncapa/loncom/cron/loncapa>; typical
41: filesystem installation location: F</etc/cron.d/loncapa>).
42:
43: Here is the cron job entry.
44:
45: C<# Repopulate and refresh the metadata database used for the search catalog.>
46: C<10 1 * * 7 www /home/httpd/perl/searchcat.pl>
47:
48: This script only allows itself to be run as the user C<www>.
49:
50: =head1 DESCRIPTION
51:
52: This script goes through a loncapa resource directory and gathers metadata.
53: The metadata is entered into a SQL database.
54:
55: This script also does general database maintenance such as reformatting
56: the C<loncapa:metadata> table if it is deprecated.
57:
58: This script evaluates dynamic metadata from the authors'
59: F<nohist_resevaldata.db> database file in order to store it in MySQL.
60:
61: This script is playing an increasingly important role for a loncapa
62: library server. The proper operation of this script is critical for a smooth
63: and correct user experience.
64:
65: =cut
66:
67: use strict;
68: use DBI;
69: use lib '/home/httpd/lib/perl/';
70: use LONCAPA::lonmetadata;
71: use LONCAPA;
72: use Getopt::Long;
73: use IO::File;
74: use HTML::TokeParser;
75: use GDBM_File;
76: use POSIX qw(strftime mktime);
77:
78: use Apache::lonnet();
79:
80: use File::Find;
81:
82: #
83: # Set up configuration options
84: my ($simulate,$oneuser,$help,$verbose,$logfile,$debug);
85: GetOptions (
86: 'help' => \$help,
87: 'simulate' => \$simulate,
88: 'only=s' => \$oneuser,
89: 'verbose=s' => \$verbose,
90: 'debug' => \$debug,
91: );
92:
93: if ($help) {
94: print <<"ENDHELP";
95: $0
96: Rebuild and update the LON-CAPA metadata database.
97: Options:
98: -help Print this help
99: -simulate Do not modify the database.
100: -only=user Only compute for the given user. Implies -simulate
101: -verbose=val Sets logging level, val must be a number
102: -debug Turns on debugging output
103: ENDHELP
104: exit 0;
105: }
106:
107: if (! defined($debug)) {
108: $debug = 0;
109: }
110:
111: if (! defined($verbose)) {
112: $verbose = 0;
113: }
114:
115: if (defined($oneuser)) {
116: $simulate=1;
117: }
118:
119: ##
120: ## Use variables for table names so we can test this routine a little easier
121: my %oldnames = (
122: 'metadata' => 'metadata',
123: 'portfolio' => 'portfolio_metadata',
124: 'access' => 'portfolio_access',
125: 'addedfields' => 'portfolio_addedfields',
126: 'allusers' => 'allusers',
127: );
128:
129: my %newnames;
130: # new table names - append pid to have unique temporary tables
131: foreach my $key (keys(%oldnames)) {
132: $newnames{$key} = 'new'.$oldnames{$key}.$$;
133: }
134:
135: #
136: # Only run if machine is a library server
137: exit if ($Apache::lonnet::perlvar{'lonRole'} ne 'library');
138: #
139: # Make sure this process is running from user=www
140: my $wwwid=getpwnam('www');
141: if ($wwwid!=$<) {
142: my $emailto="$Apache::lonnet::perlvar{'lonAdmEMail'},$Apache::lonnet::perlvar{'lonSysEMail'}";
143: my $subj="LON: $Apache::lonnet::perlvar{'lonHostID'} User ID mismatch";
144: system("echo 'User ID mismatch. searchcat.pl must be run as user www.' |\
145: mail -s '$subj' $emailto > /dev/null");
146: exit 1;
147: }
148: #
149: # Let people know we are running
150: open(LOG,'>>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/logs/searchcat.log');
151: &log(0,'==== Searchcat Run '.localtime()."====");
152:
153:
154: if ($debug) {
155: &log(0,'simulating') if ($simulate);
156: &log(0,'only processing user '.$oneuser) if ($oneuser);
157: &log(0,'verbosity level = '.$verbose);
158: }
159: #
160: # Connect to database
161: my $dbh;
162: if (! ($dbh = DBI->connect("DBI:mysql:loncapa","www",$Apache::lonnet::perlvar{'lonSqlAccess'},
163: { RaiseError =>0,PrintError=>0}))) {
164: &log(0,"Cannot connect to database!");
165: die "MySQL Error: Cannot connect to database!\n";
166: }
167: # This can return an error and still be okay, so we do not bother checking.
168: # (perhaps it should be more robust and check for specific errors)
169: foreach my $key (keys(%newnames)) {
170: if ($newnames{$key} ne '') {
171: $dbh->do('DROP TABLE IF EXISTS '.$newnames{$key});
172: }
173: }
174:
175: #
176: # Create the new metadata, portfolio and allusers tables
177: foreach my $key (keys(%newnames)) {
178: if ($newnames{$key} ne '') {
179: my $request =
180: &LONCAPA::lonmetadata::create_metadata_storage($newnames{$key},$oldnames{$key});
181: $dbh->do($request);
182: if ($dbh->err) {
183: $dbh->disconnect();
184: &log(0,"MySQL Error Create: ".$dbh->errstr);
185: die $dbh->errstr;
186: }
187: }
188: }
189:
190: #
191: # find out which users we need to examine
192: my @domains = sort(&Apache::lonnet::current_machine_domains());
193: &log(9,'domains ="'.join('","',@domains).'"');
194:
195: foreach my $dom (@domains) {
196: &log(9,'domain = '.$dom);
197: opendir(RESOURCES,"$Apache::lonnet::perlvar{'lonDocRoot'}/res/$dom");
198: my @homeusers =
199: grep {
200: &ishome("$Apache::lonnet::perlvar{'lonDocRoot'}/res/$dom/$_");
201: } grep {
202: !/^\.\.?$/;
203: } readdir(RESOURCES);
204: closedir RESOURCES;
205: &log(5,'users = '.$dom.':'.join(',',@homeusers));
206: #
207: if ($oneuser) {
208: @homeusers=($oneuser);
209: }
210: #
211: # Loop through the users
212: foreach my $user (@homeusers) {
213: &log(0,"=== User: ".$user);
214: &process_dynamic_metadata($user,$dom);
215: #
216: # Use File::Find to get the files we need to read/modify
217: find(
218: {preprocess => \&only_meta_files,
219: #wanted => \&print_filename,
220: #wanted => \&log_metadata,
221: wanted => \&process_meta_file,
222: no_chdir => 1,
223: }, join('/',($Apache::lonnet::perlvar{'lonDocRoot'},'res',$dom,$user)) );
224: }
225: # Search for all users and public portfolio files
226: my (%allusers,%portusers);
227: if ($oneuser) {
228: %portusers = (
229: $oneuser => '',
230: );
231: %allusers = (
232: $oneuser => '',
233: );
234: } else {
235: my $dir = $Apache::lonnet::perlvar{lonUsersDir}.'/'.$dom;
236: &descend_tree($dom,$dir,0,\%portusers,\%allusers);
237: }
238: foreach my $uname (keys(%portusers)) {
239: my $urlstart = '/uploaded/'.$dom.'/'.$uname;
240: my $pathstart = &propath($dom,$uname).'/userfiles';
241: my $is_course = &Apache::lonnet::is_course($dom,$uname);
242: my $curr_perm = &Apache::lonnet::get_portfile_permissions($dom,$uname);
243: my %access = &Apache::lonnet::get_access_controls($curr_perm);
244: foreach my $file (keys(%access)) {
245: my ($group,$url,$fullpath);
246: if ($is_course) {
247: ($group, my ($path)) = ($file =~ /^(\w+)(\/.+)$/);
248: $fullpath = $pathstart.'/groups/'.$group.'/portfolio'.$path;
249: $url = $urlstart.'/groups/'.$group.'/portfolio'.$path;
250: } else {
251: $fullpath = $pathstart.'/portfolio'.$file;
252: $url = $urlstart.'/portfolio'.$file;
253: }
254: if (ref($access{$file}) eq 'HASH') {
255: my %portaccesslog =
256: &LONCAPA::lonmetadata::process_portfolio_access_data($dbh,
257: $simulate,\%newnames,$url,$fullpath,$access{$file});
258: &portfolio_logging(%portaccesslog);
259: }
260: my %portmetalog = &LONCAPA::lonmetadata::process_portfolio_metadata($dbh,$simulate,\%newnames,$url,$fullpath,$is_course,$dom,$uname,$group);
261: &portfolio_logging(%portmetalog);
262: }
263: }
264: # Update allusers
265: foreach my $uname (keys(%allusers)) {
266: my %userdata =
267: &Apache::lonnet::get('environment',['firstname','lastname',
268: 'middlename','generation','id','permanentemail'],$dom,$uname);
269: $userdata{'username'} = $uname;
270: $userdata{'domain'} = $dom;
271: my %alluserslog =
272: &LONCAPA::lonmetadata::process_allusers_data($dbh,$simulate,
273: \%newnames,$uname,$dom,\%userdata);
274: foreach my $item (keys(%alluserslog)) {
275: &log(0,$alluserslog{$item});
276: }
277: }
278: }
279:
280: #
281: # Rename the tables
282: if (! $simulate) {
283: foreach my $key (keys(%oldnames)) {
284: if (($oldnames{$key} ne '') && ($newnames{$key} ne '')) {
285: $dbh->do('DROP TABLE IF EXISTS '.$oldnames{$key});
286: if (! $dbh->do('RENAME TABLE '.$newnames{$key}.' TO '.$oldnames{$key})) {
287: &log(0,"MySQL Error Rename: ".$dbh->errstr);
288: die $dbh->errstr;
289: } else {
290: &log(1,"MySQL table rename successful for $key.");
291: }
292: }
293: }
294: }
295: if (! $dbh->disconnect) {
296: &log(0,"MySQL Error Disconnect: ".$dbh->errstr);
297: die $dbh->errstr;
298: }
299: ##
300: ## Finished!
301: &log(0,"==== Searchcat completed ".localtime()." ====");
302: close(LOG);
303:
304: &write_type_count();
305: &write_copyright_count();
306:
307: exit 0;
308:
309: ##
310: ## Status logging routine. Inputs: $level, $message
311: ##
312: ## $level 0 should be used for normal output and error messages
313: ##
314: ## $message does not need to end with \n. In the case of errors
315: ## the message should contain as much information as possible to
316: ## help in diagnosing the problem.
317: ##
318: sub log {
319: my ($level,$message)=@_;
320: $level = 0 if (! defined($level));
321: if ($verbose >= $level) {
322: print LOG $message.$/;
323: }
324: }
325:
326: sub portfolio_logging {
327: my (%portlog) = @_;
328: foreach my $key (keys(%portlog)) {
329: if (ref($portlog{$key}) eq 'HASH') {
330: foreach my $item (keys(%{$portlog{$key}})) {
331: &log(0,$portlog{$key}{$item});
332: }
333: }
334: }
335: }
336:
337: sub descend_tree {
338: my ($dom,$dir,$depth,$allportusers,$alldomusers) = @_;
339: if (-d $dir) {
340: opendir(DIR,$dir);
341: my @contents = grep(!/^\./,readdir(DIR));
342: closedir(DIR);
343: $depth ++;
344: foreach my $item (@contents) {
345: if ($depth < 4) {
346: &descend_tree($dom,$dir.'/'.$item,$depth,$allportusers,$alldomusers);
347: } else {
348: if (-e $dir.'/'.$item.'/file_permissions.db') {
349: $$allportusers{$item} = '';
350: }
351: if (!&Apache::lonnet::is_course($dom,$item)) {
352: $$alldomusers{$item} = '';
353: }
354: }
355: }
356: }
357: }
358:
359: ########################################################
360: ########################################################
361: ### ###
362: ### File::Find support routines ###
363: ### ###
364: ########################################################
365: ########################################################
366: ##
367: ## &only_meta_files
368: ##
369: ## Called by File::Find.
370: ## Takes a list of files/directories in and returns a list of files/directories
371: ## to search.
372: sub only_meta_files {
373: my @PossibleFiles = @_;
374: my @ChosenFiles;
375: foreach my $file (@PossibleFiles) {
376: if ( ($file =~ /\.meta$/ && # Ends in meta
377: $file !~ /\.\d+\.[^\.]+\.meta$/ # is not for a prior version
378: ) || (-d $File::Find::dir."/".$file )) { # directories are okay
379: # but we do not want /. or /..
380: push(@ChosenFiles,$file);
381: }
382: }
383: return @ChosenFiles;
384: }
385:
386: ##
387: ##
388: ## Debugging routines, use these for 'wanted' in the File::Find call
389: ##
390: sub print_filename {
391: my ($file) = $_;
392: my $fullfilename = $File::Find::name;
393: if ($debug) {
394: if (-d $file) {
395: &log(5," Got directory ".$fullfilename);
396: } else {
397: &log(5," Got file ".$fullfilename);
398: }
399: }
400: $_=$file;
401: }
402:
403: sub log_metadata {
404: my ($file) = $_;
405: my $fullfilename = $File::Find::name;
406: return if (-d $fullfilename); # No need to do anything here for directories
407: if ($debug) {
408: &log(6,$fullfilename);
409: my $ref = &metadata($fullfilename);
410: if (! defined($ref)) {
411: &log(6," No data");
412: return;
413: }
414: while (my($key,$value) = each(%$ref)) {
415: &log(6," ".$key." => ".$value);
416: }
417: &count_copyright($ref->{'copyright'});
418: }
419: $_=$file;
420: }
421:
422: ##
423: ## process_meta_file
424: ## Called by File::Find.
425: ## Only input is the filename in $_.
426: sub process_meta_file {
427: my ($file) = $_;
428: my $filename = $File::Find::name; # full filename
429: return if (-d $filename); # No need to do anything here for directories
430: #
431: &log(3,$filename) if ($debug);
432: #
433: my $ref = &metadata($filename);
434: #
435: # $url is the original file url, not the metadata file
436: my $target = $filename;
437: $target =~ s/\.meta$//;
438: my $url='/res/'.&declutter($target);
439: &log(3," ".$url) if ($debug);
440: #
441: # Ignore some files based on their metadata
442: if ($ref->{'obsolete'}) {
443: &log(3,"obsolete") if ($debug);
444: return;
445: }
446: &count_copyright($ref->{'copyright'});
447: if ($ref->{'copyright'} eq 'private') {
448: &log(3,"private") if ($debug);
449: return;
450: }
451: #
452: # Find the dynamic metadata
453: my %dyn;
454: if ($url=~ m:/default$:) {
455: $url=~ s:/default$:/:;
456: &log(3,"Skipping dynamic data") if ($debug);
457: } else {
458: &log(3,"Retrieving dynamic data") if ($debug);
459: %dyn=&get_dynamic_metadata($url);
460: &count_type($url);
461: }
462: &LONCAPA::lonmetadata::getfiledates($ref,$target);
463: #
464: my %Data = (
465: %$ref,
466: %dyn,
467: 'url'=>$url,
468: 'version'=>'current');
469: if (! $simulate) {
470: my ($count,$err) =
471: &LONCAPA::lonmetadata::store_metadata($dbh,$newnames{'metadata'},
472: 'metadata',\%Data);
473: if ($err) {
474: &log(0,"MySQL Error Insert: ".$err);
475: }
476: if ($count < 1) {
477: &log(0,"Unable to insert record into MySQL database for $url");
478: }
479: }
480: #
481: # Reset $_ before leaving
482: $_ = $file;
483: }
484:
485: ########################################################
486: ########################################################
487: ### ###
488: ### &metadata($uri) ###
489: ### Retrieve metadata for the given file ###
490: ### ###
491: ########################################################
492: ########################################################
493: sub metadata {
494: my ($uri) = @_;
495: my %metacache=();
496: $uri=&declutter($uri);
497: my $filename=$uri;
498: $uri=~s/\.meta$//;
499: $uri='';
500: if ($filename !~ /\.meta$/) {
501: $filename.='.meta';
502: }
503: my $metastring =
504: &LONCAPA::lonmetadata::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$filename);
505: return undef if (! defined($metastring));
506: my $parser=HTML::TokeParser->new(\$metastring);
507: my $token;
508: while ($token=$parser->get_token) {
509: if ($token->[0] eq 'S') {
510: my $entry=$token->[1];
511: my $unikey=$entry;
512: if (defined($token->[2]->{'part'})) {
513: $unikey.='_'.$token->[2]->{'part'};
514: }
515: if (defined($token->[2]->{'name'})) {
516: $unikey.='_'.$token->[2]->{'name'};
517: }
518: if ($metacache{$uri.'keys'}) {
519: $metacache{$uri.'keys'}.=','.$unikey;
520: } else {
521: $metacache{$uri.'keys'}=$unikey;
522: }
523: foreach ( @{$token->[3]}) {
524: $metacache{$uri.''.$unikey.'.'.$_}=$token->[2]->{$_};
525: }
526: if (! ($metacache{$uri.''.$unikey}=$parser->get_text('/'.$entry))){
527: $metacache{$uri.''.$unikey} =
528: $metacache{$uri.''.$unikey.'.default'};
529: }
530: } # End of ($token->[0] eq 'S')
531: }
532: return \%metacache;
533: }
534:
535: ########################################################
536: ########################################################
537: ### ###
538: ### Dynamic Metadata ###
539: ### ###
540: ########################################################
541: ########################################################
542: ##
543: ## Dynamic metadata description (incomplete)
544: ##
545: ## For a full description of all fields,
546: ## see LONCAPA::lonmetadata
547: ##
548: ## Field Type
549: ##-----------------------------------------------------------
550: ## count integer
551: ## course integer
552: ## course_list comma separated list of course ids
553: ## avetries real
554: ## avetries_list comma separated list of real numbers
555: ## stdno real
556: ## stdno_list comma separated list of real numbers
557: ## usage integer
558: ## usage_list comma separated list of resources
559: ## goto scalar
560: ## goto_list comma separated list of resources
561: ## comefrom scalar
562: ## comefrom_list comma separated list of resources
563: ## difficulty real
564: ## difficulty_list comma separated list of real numbers
565: ## sequsage scalar
566: ## sequsage_list comma separated list of resources
567: ## clear real
568: ## technical real
569: ## correct real
570: ## helpful real
571: ## depth real
572: ## comments html of all the comments made
573: ##
574: {
575:
576: my %DynamicData;
577: my %Counts;
578:
579: sub process_dynamic_metadata {
580: my ($user,$dom) = @_;
581: undef(%DynamicData);
582: undef(%Counts);
583: #
584: my $prodir = &propath($dom,$user);
585: #
586: # Read in the dynamic metadata
587: my %evaldata;
588: if (! tie(%evaldata,'GDBM_File',
589: $prodir.'/nohist_resevaldata.db',&GDBM_READER(),0640)) {
590: return 0;
591: }
592: #
593: %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
594: untie(%evaldata);
595: $DynamicData{'domain'} = $dom;
596: #print('user = '.$user.' domain = '.$dom.$/);
597: #
598: # Read in the access count data
599: &log(7,'Reading access count data') if ($debug);
600: my %countdata;
601: if (! tie(%countdata,'GDBM_File',
602: $prodir.'/nohist_accesscount.db',&GDBM_READER(),0640)) {
603: return 0;
604: }
605: while (my ($key,$count) = each(%countdata)) {
606: next if ($key !~ /^$dom/);
607: $key = &unescape($key);
608: &log(8,' Count '.$key.' = '.$count) if ($debug);
609: $Counts{$key}=$count;
610: }
611: untie(%countdata);
612: if ($debug) {
613: &log(7,scalar(keys(%Counts)).
614: " Counts read for ".$user."@".$dom);
615: &log(7,scalar(keys(%DynamicData)).
616: " Dynamic metadata read for ".$user."@".$dom);
617: }
618: #
619: return 1;
620: }
621:
622: sub get_dynamic_metadata {
623: my ($url) = @_;
624: $url =~ s:^/res/::;
625: my %data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
626: \%DynamicData);
627: # find the count
628: $data{'count'} = $Counts{$url};
629: #
630: # Log the dynamic metadata
631: if ($debug) {
632: while (my($k,$v)=each(%data)) {
633: &log(8," ".$k." => ".$v);
634: }
635: }
636: return %data;
637: }
638:
639: } # End of %DynamicData and %Counts scope
640:
641: ########################################################
642: ########################################################
643: ### ###
644: ### Counts ###
645: ### ###
646: ########################################################
647: ########################################################
648: {
649:
650: my %countext;
651:
652: sub count_type {
653: my $file=shift;
654: $file=~/\.(\w+)$/;
655: my $ext=lc($1);
656: $countext{$ext}++;
657: }
658:
659: sub write_type_count {
660: open(RESCOUNT,'>/home/httpd/html/lon-status/rescount.txt');
661: while (my ($extension,$count) = each(%countext)) {
662: print RESCOUNT $extension.'='.$count.'&';
663: }
664: print RESCOUNT 'time='.time."\n";
665: close(RESCOUNT);
666: }
667:
668: } # end of scope for %countext
669:
670: {
671:
672: my %copyrights;
673:
674: sub count_copyright {
675: $copyrights{@_[0]}++;
676: }
677:
678: sub write_copyright_count {
679: open(COPYCOUNT,'>/home/httpd/html/lon-status/copyrightcount.txt');
680: while (my ($copyright,$count) = each(%copyrights)) {
681: print COPYCOUNT $copyright.'='.$count.'&';
682: }
683: print COPYCOUNT 'time='.time."\n";
684: close(COPYCOUNT);
685: }
686:
687: } # end of scope for %copyrights
688:
689: ########################################################
690: ########################################################
691: ### ###
692: ### Miscellanous Utility Routines ###
693: ### ###
694: ########################################################
695: ########################################################
696: ##
697: ## &ishome($username)
698: ## Returns 1 if $username is a LON-CAPA author, 0 otherwise
699: ## (copied from lond, modification of the return value)
700: sub ishome {
701: my $author=shift;
702: $author=~s{/home/httpd/html/res/([^/]*)/([^/]*).*}{$1/$2};
703: my ($udom,$uname)=split(/\//,$author);
704: my $proname=propath($udom,$uname);
705: if (-e $proname) {
706: return 1;
707: } else {
708: return 0;
709: }
710: }
711:
712: ##
713: ## &declutter($filename)
714: ## Given a filename, returns a url for the filename.
715: sub declutter {
716: my $thisfn=shift;
717: $thisfn=~s/^$Apache::lonnet::perlvar{'lonDocRoot'}//;
718: $thisfn=~s/^\///;
719: $thisfn=~s/^res\///;
720: return $thisfn;
721: }
722:
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