X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/e4e3d7e2d4195bcd22c467522719c9c6dd39216b..8ded9f57a12a27fa5fc1e272ec7b2d2a5aa28419:/IkiWiki/Plugin/img.pm

diff --git a/IkiWiki/Plugin/img.pm b/IkiWiki/Plugin/img.pm
index 49e1d57d6..7b89ab673 100644
--- 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=@_;
@@ -41,36 +50,41 @@ 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);
 
 	eval q{use Image::Magick};
-	return "[[img ".gettext("Image::Magick not installed")."]]" if $@;
+	error gettext("Image::Magick is not installed") if $@;
 	my $im = Image::Magick->new;
 	my $imglink;
 	my $r;
 
 	if ($params{size} ne 'full') {
-		my ($w, $h) = ($params{size} =~ /^(\d+)x(\d+)$/);
-		return "[[img ".sprintf(gettext('bad size "%s"'), $params{size})."]]"
-			unless (defined $w && defined $h);
+		my ($w, $h) = ($params{size} =~ /^(\d*)x(\d*)$/);
+		error sprintf(gettext('bad size "%s"'), $params{size})
+			unless (defined $w && defined $h &&
+			        (length $w || length $h));
 
 		my $outfile = "$config{destdir}/$dir/${w}x${h}-$base";
 		$imglink = "$dir/${w}x${h}-$base";
 		
 		will_render($params{page}, $imglink);
 
-		if (-e $outfile && (-M srcfile($file) >= -M $outfile)) {
+		if (-e $outfile && (-M $srcfile >= -M $outfile)) {
 			$r = $im->Read($outfile);
-			return "[[img ".sprintf(gettext("failed to read %s: %s"), $outfile, $r)."]]" if $r;
+			error sprintf(gettext("failed to read %s: %s"), $outfile, $r) if $r;
 		}
 		else {
-			$r = $im->Read(srcfile($file));
-			return "[[img ".sprintf(gettext("failed to read %s: %s"), $file, $r)."]]" if $r;
+			$r = $im->Read($srcfile);
+			error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
 
 			$r = $im->Resize(geometry => "${w}x${h}");
-			return "[[img ".sprintf(gettext("failed to resize: %s"), $r)."]]" if $r;
+			error sprintf(gettext("failed to resize: %s"), $r) if $r;
 
 			# don't actually write file in preview mode
 			if (! $params{preview}) {
@@ -83,8 +97,8 @@ sub preprocess (@) { #{{{
 		}
 	}
 	else {
-		$r = $im->Read(srcfile($file));
-		return "[[img ".sprintf(gettext("failed to read %s: %s"), $file, $r)."]]" if $r;
+		$r = $im->Read($srcfile);
+		error sprintf(gettext("failed to read %s: %s"), $file, $r) if $r;
 		$imglink = $file;
 	}
 
@@ -101,7 +115,7 @@ sub preprocess (@) { #{{{
 	}
 
 	if (! defined($im->Get("width")) || ! defined($im->Get("height"))) {
-		return "[[img ".sprintf(gettext("failed to determine size of image %s"), $file)."]]";
+		error sprintf(gettext("failed to determine size of image %s"), $file)
 	}
 
 	my $imgtag='<img src="'.$imgurl.