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File:  [LON-CAPA] / doc / loncapafiles / mimetex_version_check.piml
Revision 1.2: download - view: text, annotated - select for diffs
Sat Dec 27 01:21:48 2008 UTC (15 years, 4 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_99_1, version_2_7_99_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, HEAD, GCI_3, GCI_2, GCI_1, BZ4492-merge, BZ4492-feature_horizontal_radioresponse, BZ4492-feature_Support_horizontal_radioresponse, BZ4492-Support_horizontal_radioresponse
- Typo - unwanted `
- Code to remove gif files from mimetexcache moved to sub: &clear_mimetex_cache().
- print warning if VERSION file could not be found in cgi/mimeTeX.

    1: <!DOCTYPE piml PUBLIC "-//TUX/DTD piml 1.0 Final//EN" 
    2: 	"http://lpml.sourceforge.net/DTD/piml.dtd">
    3: <!-- mimetex_version_check.piml -->
    4: <!-- Stuart Raeburn -->
    5: 
    6: <!-- $Id: mimetex_version_check.piml,v 1.2 2008/12/27 01:21:48 raeburn Exp $ -->
    7: 
    8: <!--
    9: 
   10: This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   11: 
   12: LON-CAPA is free software; you can redistribute it and/or modify
   13: it under the terms of the GNU General Public License as published by
   14: the Free Software Foundation; either version 2 of the License, or
   15: (at your option) any later version.
   16: 
   17: LON-CAPA is distributed in the hope that it will be useful,
   18: but WITHOUT ANY WARRANTY; without even the implied warranty of
   19: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   20: GNU General Public License for more details.
   21: 
   22: You should have received a copy of the GNU General Public License
   23: along with LON-CAPA; if not, write to the Free Software
   24: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   25: 
   26: /home/httpd/html/adm/gpl.txt
   27: 
   28: http://www.lon-capa.org/
   29: 
   30: -->
   31: 
   32: <piml>
   33: <files>
   34: <file>
   35: <target dist="default">/</target>
   36: <perlscript mode="fg">
   37:     my $currversionfile = '/home/httpd/lonTabs/mimetex-version';
   38:     my $newversionfile = '../cgi/mimeTeX/VERSION';
   39:     my $fh;
   40:     if (-e $newversionfile) {
   41:         if (open($fh, "&lt;$newversionfile")) {
   42:             my $newversion = &lt;$fh&gt;;
   43:             close($fh);
   44:             chomp($newversion);
   45:             if ($newversion=~ /^\d+\.\d+$/) { 
   46:                 if (-e $currversionfile) {
   47:                     if (open($fh, "&lt;$currversionfile")) {
   48:                         my $currversion = &lt;$fh&gt;;
   49:                         close($fh);
   50:                         chomp($version);
   51:                         if ($currversion=~ /^\d+\.\d+$/) {
   52:                             if ($currversion ne $newversion) {
   53:                                 &clear_mimetex_cache(); 
   54:                                 if (open($fh, "&gt;$currversionfile")) {
   55:                                     print $fh "$newversion";
   56:                                     close($fh);
   57:                                     print "mimetex-version file in /home/httpd/lonTabs set to version: $newversion.\n";
   58:                                 }
   59:                             }
   60:                         }
   61:                     }
   62:                 } else {
   63:                     &clear_mimetex_cache();
   64:                     if (open($fh, "&gt;$currversionfile")) {
   65:                         print $fh "$newversion";
   66:                         close($fh);
   67:                         print "mimetex-version file in /home/httpd/lonTabs set to version: $newversion.\n";
   68:                     }
   69:                 }
   70:             }
   71:         }
   72:     } else {
   73:         print "Couldn't find the mimetex version file: $newversionfile\n";
   74:     }
   75: 
   76:     sub clear_mimetex_cache {
   77:         my $mimetexcache = '/home/httpd/cgi-bin/mimetexcache';
   78:         if (opendir(my $dir,$mimetexcache)) {
   79:             my @gifs = grep(/^[^\/]+\.gif$/,readdir($dir));
   80:             if (@gifs &gt; 0) {
   81:                 my $counter = 0;
   82:                 foreach my $gif (@gifs) {
   83:                     unlink("$mimetexcache/$gif");
   84:                     $counter ++;
   85:                 }
   86:                 if ($counter) {
   87:                     print "$counter .gif file(s) cached by previous mimeTeX version have been removed from the mimetexcache directory\n";
   88:                 }
   89:             }
   90:             closedir($dir);
   91:         } else {
   92:             print "An error occurred opening the directory: $mimetexcache\n";
   93:         }
   94:     }
   95: </perlscript>
   96: </file>
   97: </files>
   98: </piml>
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