add plugin safe/rebuild info (part 1 of 2)

[ikiwiki.git] / IkiWiki / Plugin / img.pm

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 17a9367d3339145170256d44c734663f561e94ec..66cc08530e685e8d10f6ae90646d7496a00401d2 100644 (file)
--- a/IkiWiki/Plugin/img.pm
+++ b/IkiWiki/Plugin/img.pm
@@ -10,9 +10,18 @@ use IkiWiki 2.00;
 my %imgdefaults;
 
 sub import { #{{{
+       hook(type => "getsetup", id => "img", call => \&getsetup);
        hook(type => "preprocess", id => "img", call => \&preprocess, scan => 1);
 } #}}}
 
+sub getsetup () { #{{{
+       return
+               plugin => {
+                       safe => 1,
+                       rebuild => undef,
+               },
+} #}}}
+
 sub preprocess (@) { #{{{
        my ($image) = $_[0] =~ /$config{wiki_file_regexp}/; # untaint
        my %params=@_;
@@ -41,6 +50,10 @@ sub preprocess (@) { #{{{
        }
 
        my $file = bestlink($params{page}, $image);
+       my $srcfile = srcfile($file, 1);
+       if (! length $file || ! defined $srcfile) {
+               return htmllink($params{page}, $params{destpage}, $image);
+       }
 
        my $dir = $params{page};
        my $base = IkiWiki::basename($file);
@@ -61,12 +74,12 @@ sub preprocess (@) { #{{{
                
                will_render($params{page}, $imglink);
 
-               if (-e $outfile && (-M srcfile($file) >= -M $outfile)) {
+               if (-e $outfile && (-M $srcfile >= -M $outfile)) {
                        $r = $im->Read($outfile);
                        error sprintf(gettext("failed to read %s: %s"), $outfile, $r) if $r;
                }
                else {
-                       $r = $im->Read(srcfile($file));
+                       $r = $im->Read($srcfile);
                        error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
 
                        $r = $im->Resize(geometry => "${w}x${h}");
@@ -83,7 +96,7 @@ sub preprocess (@) { #{{{
                }
        }
        else {
-               $r = $im->Read(srcfile($file));
+               $r = $im->Read($srcfile);
                error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
                $imglink = $file;
        }