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Annotation of loncom/build/help_graphics_converter.pl, revision 1.4

1.1       bowersj2    1: # The LearningOnline Network
                      2: # help_graphics_converter - converts help .png into .gif and .eps
                      3: #
                      4: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      5: #
                      6: # LON-CAPA is free software; you can redistribute it and/or modify
                      7: # it under the terms of the GNU General Public License as published by
                      8: # the Free Software Foundation; either version 2 of the License, or
                      9: # (at your option) any later version.
                     10: #
                     11: # LON-CAPA is distributed in the hope that it will be useful,
                     12: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     13: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     14: # GNU General Public License for more details.
                     15: #
                     16: # You should have received a copy of the GNU General Public License
                     17: # along with LON-CAPA; if not, write to the Free Software
                     18: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     19: #
                     20: # /home/httpd/html/adm/gpl.txt
                     21: #
                     22: # http://www.lon-capa.org/
                     23: #
                     24: # YEAR=2002
                     25: # 7/4, Jeremy Bowers
                     26: #
                     27: ###
                     28: 
                     29: use strict;
                     30: 
1.2       bowersj2   31: my $dirprefix = "../html/adm/help/";
1.1       bowersj2   32: 
                     33: # Check that the png directory exists
                     34: if (not (-d $dirprefix . "png/"))
                     35: { die "Can't convert help graphics because the png directory is not ".
                     36:       "installed."; }
                     37: 
1.3       bowersj2   38: mkdir $dirprefix . "gif/", 0755;
                     39: mkdir $dirprefix . "eps/", 0755;
1.1       bowersj2   40: 
1.4     ! bowersj2   41: my $convert = `which convert`;
        !            42: if ($convert eq '')
        !            43: {
        !            44:     open LOG, ">> WARNINGS";
        !            45:     print LOG "**** ERROR **** ImageMagick is not installed. You must install ImageMagick to use LON-CAPA. Please see your installation instructions.\n";
        !            46:     print "**** ERROR **** ImageMagick is not installed. You must install ImageMagick to use LON-CAPA. Please see your installation instructions.\n";
        !            47:     exit;
        !            48: }
        !            49: 
1.1       bowersj2   50: foreach my $file (glob($dirprefix . "png/*.png"))
                     51: {
                     52:     my $filename = substr($file, rindex($file, "/") + 1);
                     53:     my $gifdest = $dirprefix . "gif/" . substr($filename, 0, -4) . ".gif";
                     54:     my $epsdest = $dirprefix . "eps/" . substr($filename, 0, -4) . ".eps";
                     55:     
                     56:     
                     57:     print "Converting $filename... gif";
                     58:     system ("convert $file $gifdest\n") if (not (-s $gifdest));
                     59:     print " eps";
                     60:     system ("convert $file $epsdest\n") if (not (-s $epsdest));
                     61:     print " done.\n";
                     62: }